WO2003016425A1 - Blends of esters with isomerized olefins and other hydrocarbons as base oils for invert emulsion oil muds - Google Patents

Blends of esters with isomerized olefins and other hydrocarbons as base oils for invert emulsion oil muds Download PDF

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Publication number
WO2003016425A1
WO2003016425A1 PCT/US2002/021444 US0221444W WO03016425A1 WO 2003016425 A1 WO2003016425 A1 WO 2003016425A1 US 0221444 W US0221444 W US 0221444W WO 03016425 A1 WO03016425 A1 WO 03016425A1
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Prior art keywords
drilling fluid
esters
olefins
drilling
prepared
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PCT/US2002/021444
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French (fr)
Inventor
Jeff Kirsner
Kenneth W. Pober
Robert W. Pike
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Halliburton Energy Services, Inc.
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Publication date
Application filed by Halliburton Energy Services, Inc. filed Critical Halliburton Energy Services, Inc.
Priority to BR0211777-0A priority Critical patent/BR0211777A/en
Priority to MXPA04001381A priority patent/MXPA04001381A/en
Priority to CA002456208A priority patent/CA2456208A1/en
Priority to EP02749832A priority patent/EP1417278A1/en
Publication of WO2003016425A1 publication Critical patent/WO2003016425A1/en
Priority to NO20040630A priority patent/NO20040630L/en

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
    • C09K8/34—Organic liquids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/32—Non-aqueous well-drilling compositions, e.g. oil-based
    • C09K8/36—Water-in-oil emulsions

Definitions

  • the present invention relates to compositions and methods for drilling boreholes in subterranean formations, particularly hydrocarbon bearing formations. More particularly, the present invention relates to oil or synthetic based drilling fluids, fluids comprising invert emulsions, and more particularly to drilling fluids utilizing esters which combine high ecological compatibility with good stability and performance properties.
  • a drilling fluid or mud is a specially designed fluid that is circulated through a wellbore as the wellbore is being drilled to facilitate the drilling operation.
  • the various functions of a drilling fluid include removing drill cuttings from the wellbore, cooling and lubricating the drill bit, aiding in support of the drill pipe and drill bit, and providing a hydrostatic head to maintain the integrity of the wellbore walls and prevent well blowouts.
  • Specific drilling fluid systems are selected to optimize a drilling operation in accordance with the characteristics of a particular geological formation.
  • Oil or synthetic-based muds are normally used to drill swelling or sloughing shales, salt, gypsum, anhydrite or other evaporite formations, hydrogen sulfide-containing formations, and hot (greater than about 300 degrees Fahrenheit) holes, but may be used in other holes penetrating a subterranean formation as well.
  • oil mud or "oil-based mud or drilling fluid” shall be understood to include synthetic as well as natural or traditional oils, and such oils shall be understood to comprise invert emulsions.
  • Oil-based muds used in drilling typically comprise: a base oil (or synthetic) comprising the external phase of an invert emulsion; a saline, aqueous solution (typically a solution comprising about 30% calcium chloride and emulsifiers) comprising the internal phase of the invert emulsion; and other agents or additives for suspension, weight or density, oil-wetting, fluid loss or filtration control, and rheology control.
  • An oil-based drilling fluid may commonly comprise between about 50:50 to about 95:5 by volume oil phase to water phase.
  • An all oil mud simply comprises 100% oil by volume; that is, there is no aqueous internal phase.
  • Oil-based muds or drilling fluids comprise a key segment of the drilling fluids industry.
  • increasingly oil-based drilling fluids have been subjected to greater environmental restrictions and performance and cost demands.
  • a drilling fluid comprising an invert emulsion is provided in the present invention that provides significant benefits in terms of environmental acceptance or regulatory compliance without compromising or reducing oil mud rheology or overall oil mud performance significantly.
  • the invert emulsion of the invention has a base, or continuous phase, comprising esters blended with isomerized, or internal, olefins and/or other hydrocarbons, such as paraffins, mineral oils, glyceride triesters, or combinations thereof (hereinafter "the ester blends").
  • the invert emulsion has a base comprising isomerized olefins blended with other hydrocarbons such as linear alpha olefins, paraffins, or naphthenes, or combinations thereof (hereinafter “the hydrocarbon blends").
  • these two alternative base fluids may themselves be blended together to comprise the base of an invert emulsion.
  • the ester may be any quantity, but preferably should comprise at least about 10 weight percent to about 99 weight percent of the blend and the olefins or other hydrocarbons should preferably comprise about 1 weight percent to about 99 weight percent of the blend.
  • the isomerized olefins should preferably comprise about 1 weight percent to about 99 weight percent of the blend and the other hydrocarbons should preferably comprise about 1 weight percent to about 99 weight percent of the blend.
  • the esters may be any quantity, but preferably should comprise at least about 10 weight percent (and less than about 99 weight percent) of the final blend.
  • esters of the blends of the invention are preferably comprised of fatty acids and alcohols and most preferably about C 6 to about C M fatty acids and 2-ethyl hexanol.
  • esters made other ways than with fatty acids and alcohols such as for example, esters made from olefins combined with either fatty acids or alcohols, are also believed effective for use in the blends of the invention.
  • a method for preparing and using an environmentally acceptable drilling fluid is also provided by the invention.
  • a drilling fluid is obtained or prepared comprising as its base or continuous phase the blends of the invention.
  • the fluid is then used in drilling boreholes or wellbores in subterranean formations.
  • the present invention provides blends that comprise the oil base or continuous phase of an invert emulsion for oil-based drilling fluids or muds that are environmentally acceptable and still effective as drilling fluids.
  • the environmental acceptability or compatibility and retained effectiveness of the fluids for use as a drilling fluid are accomplished through the blending or mixing of the fluids.
  • the blending or mixing is done, i.e., the blends are made, before the emulsion is formed or before other materials or compounds are added to the fluid.
  • the blends of the invention most preferably comprise esters, and also preferably comprise isomerized, or internal, olefins. However, blends of the invention may also or alternatively comprise esters with other hydrocarbons. Alternatively, blends of the invention may comprise isomerized olefins and other hydrocarbons. In blends of the invention with esters, the esters may be used in any quantity. Preferably, however, the esters should comprise at least about 10 weight percent of the blend and may comprise up to about 99 weight percent of the blend. Preferred esters for blending are comprised of about C 6 to about C 14 fatty acids and alcohols, and are particularly or more preferably disclosed in U.S. PatentNo.
  • esters for use in the blends of the invention are comprised of about C 12 to about C 14 fatty acids and 2-ethyl hexanol or about C 8 fatty acids and 2-ethyl hexanol. These most preferred esters are available commercially as PETROFREE® and PETROFREE LNTM, respectively, from Halliburton Energy Services, Inc. in Houston, Texas. Isomerized, or internal, olefins for the blends of the invention may be any such olefins, straight chain, branched, or cyclic, preferably having about 10 to about 30 carbon atoms.
  • Isomerized, or internal, olefins having about 40 to about 70 weight percent C 16 and about 20 to about 50 weight percent C 18 are especially preferred for blends of the invention.
  • An example of an isomerized olefin for blends of the invention that is commercially available is SFTM Base, available from Halliburton Energy Services, h e. in Houston, Texas.
  • esters may be blended with other hydrocarbons, in addition to or instead of with isomerized olefins.
  • esters may be blended with paraffins, mineral oil hydrocarbons, and/or glyceride triesters, where such other hydrocarbons comprise from about 1 weight percent to about 99 weight percent of the blend.
  • Paraffins for the blends of the invention may be linear, branched, poly-branched, cyclic, or isoparaffins, preferably having about 10 to about 30 carbon atoms.
  • the paraffins should comprise at least about 1 weight percent to about 99 weight percent of the blend, but preferably less than about 50 weight percent.
  • the paraffins should comprise at least about 1 weight percent up to about 99 weight percent of the blend, but preferably less than about 50 weight percent of the blend.
  • An example of a paraffin suited for blends of the invention that is commercially available is XP-07TM, available from Halliburton Energy Services, Inc in Houston, Texas. XP-07TM is primarily a C 12 _ 16 linear paraffin.
  • glyceride triesters for the ester/hydrocarbon blends of the invention include without limitation materials such as rapeseed oil, olive oil, canola oil, castor oil, coconut oil, corn oil, cottonseed oil, lard oil, linseed oil, neatsfoot oil, palm oil, peanut oil, perilla oil, rice bran oil, safflower oil, sardine oil, sesame oil, soybean oil, and sunflower oil.
  • the blends of the invention may be prepared from esters of the invention mixed with various combinations of the olefin hydrocarbons, paraffin hydrocarbons, mineral oil hydrocarbons and glyceride triesters, and even with the hydrocarbon blends of the invention (as the term "hydrocarbon blends" has previously been defined herein).
  • the olefin or other hydrocarbon combinations should preferably comprise about 1 to about 99 weight percent of the blend and the esters of the invention should preferably comprise about 10 to about 99 weight percent of the blend, although any quantity of the esters may be used.
  • the hydrocarbon blends of the invention comprise isomerized olefins blended with other hydrocarbons such as paraffin hydrocarbons. That is, about 1 weight percent to about 99 weight percent isomerized olefins may be blended with about 1 weight percent to about 99 weight percent linear alpha olefins, naphthenes, paraffins, or other similar hydrocarbons, or combinations thereof.
  • the paraffin hydrocarbons may be linear, branched, poly-branched, cyclic, or isoparaffins preferably having about 10 to about 30 carbon atoms.
  • the linear alpha olefins and the isomerized olefins preferably have about 10 to about 30 carbon atoms .
  • the isomerized olefins may be internal olefins (either straight chain or branched), cyclic olefins, or olefins with any other structure (preferably other than linear alpha).
  • the naphthenes or napthenic hydrocarbons may be any saturated, cycloparaffinic compound, composition or material with a chemical formula of C n H 2n where n is a number about 5 to about 30. These hydrocarbon blends may be further blended with the ester blends of the invention.
  • the esters may be any quantity but the esters preferably comprise at least about 10 weight percent and less than about 99 weight percent of the ultimate blend.
  • blends of the invention are obtained or prepared and used to comprise the oil (or synthetic) base of an invert emulsion or oil-based drilling fluid.
  • the fluid is used for drilling a borehole or wellbore in a subterranean formation, particularly a formation comprising oil, gas or other hydrocarbons.

Abstract

Environmentally acceptable or regulatory compliant oil-based drilling fluids and methods of using same in drilling a wellbore in a subterranean formation are disclosed. The fluids are able to meet environmental regulations while maintaining acceptable oil mud rheology and overall oil mud performance. The fluids are comprised of an invert emulsion. The base or continuous phase of the emulsion is comprised of esters blended with isomerized olefins, and/or other hydrocarbons, such as paraffins, mineral oils or glyceride triesters or combinations thereof. Alternatively, the emulsion has a base comprising isomerized olefins blended with other hydrocarbons such as linear alpha olefins, paraffins or naphthenes.

Description

BLENDS OF ESTERS WITH ISOMERIZED OLEFINS
AND OTHER HYDROCARBONS AS BASE OILS FOR INVERT EMULSION OIL MUDS
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to compositions and methods for drilling boreholes in subterranean formations, particularly hydrocarbon bearing formations. More particularly, the present invention relates to oil or synthetic based drilling fluids, fluids comprising invert emulsions, and more particularly to drilling fluids utilizing esters which combine high ecological compatibility with good stability and performance properties.
2. Description of Relevant Art
A drilling fluid or mud is a specially designed fluid that is circulated through a wellbore as the wellbore is being drilled to facilitate the drilling operation. The various functions of a drilling fluid include removing drill cuttings from the wellbore, cooling and lubricating the drill bit, aiding in support of the drill pipe and drill bit, and providing a hydrostatic head to maintain the integrity of the wellbore walls and prevent well blowouts. Specific drilling fluid systems are selected to optimize a drilling operation in accordance with the characteristics of a particular geological formation. Oil or synthetic-based muds are normally used to drill swelling or sloughing shales, salt, gypsum, anhydrite or other evaporite formations, hydrogen sulfide-containing formations, and hot (greater than about 300 degrees Fahrenheit) holes, but may be used in other holes penetrating a subterranean formation as well. Unless indicated otheiwise, the terms "oil mud" or "oil-based mud or drilling fluid" shall be understood to include synthetic as well as natural or traditional oils, and such oils shall be understood to comprise invert emulsions.
Oil-based muds used in drilling typically comprise: a base oil (or synthetic) comprising the external phase of an invert emulsion; a saline, aqueous solution (typically a solution comprising about 30% calcium chloride and emulsifiers) comprising the internal phase of the invert emulsion; and other agents or additives for suspension, weight or density, oil-wetting, fluid loss or filtration control, and rheology control. An oil-based drilling fluid may commonly comprise between about 50:50 to about 95:5 by volume oil phase to water phase. An all oil mud simply comprises 100% oil by volume; that is, there is no aqueous internal phase.
Oil-based muds or drilling fluids comprise a key segment of the drilling fluids industry. However, increasingly oil-based drilling fluids have been subjected to greater environmental restrictions and performance and cost demands. There is consequently an increasing need and industry-wide interest in new low-cost drilling fluids that provide robust rheology at high and low temperatures simultaneously while still affording environmental acceptance. SUMMARY OF THE INVENTION
A drilling fluid comprising an invert emulsion is provided in the present invention that provides significant benefits in terms of environmental acceptance or regulatory compliance without compromising or reducing oil mud rheology or overall oil mud performance significantly. The invert emulsion of the invention has a base, or continuous phase, comprising esters blended with isomerized, or internal, olefins and/or other hydrocarbons, such as paraffins, mineral oils, glyceride triesters, or combinations thereof (hereinafter "the ester blends"). Alternatively, the invert emulsion has a base comprising isomerized olefins blended with other hydrocarbons such as linear alpha olefins, paraffins, or naphthenes, or combinations thereof (hereinafter "the hydrocarbon blends"). In still another embodiment, these two alternative base fluids may themselves be blended together to comprise the base of an invert emulsion.
In the ester blends, the ester may be any quantity, but preferably should comprise at least about 10 weight percent to about 99 weight percent of the blend and the olefins or other hydrocarbons should preferably comprise about 1 weight percent to about 99 weight percent of the blend. In the hydrocarbon blends, the isomerized olefins should preferably comprise about 1 weight percent to about 99 weight percent of the blend and the other hydrocarbons should preferably comprise about 1 weight percent to about 99 weight percent of the blend. In the alternative embodiment where the ester blends are blended further with the hydrocarbon blends, the esters may be any quantity, but preferably should comprise at least about 10 weight percent (and less than about 99 weight percent) of the final blend. The esters of the blends of the invention are preferably comprised of fatty acids and alcohols and most preferably about C6 to about CM fatty acids and 2-ethyl hexanol. However, esters made other ways than with fatty acids and alcohols, such as for example, esters made from olefins combined with either fatty acids or alcohols, are also believed effective for use in the blends of the invention.
A method for preparing and using an environmentally acceptable drilling fluid is also provided by the invention. In the method, a drilling fluid is obtained or prepared comprising as its base or continuous phase the blends of the invention. The fluid is then used in drilling boreholes or wellbores in subterranean formations.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS.
The present invention provides blends that comprise the oil base or continuous phase of an invert emulsion for oil-based drilling fluids or muds that are environmentally acceptable and still effective as drilling fluids. The environmental acceptability or compatibility and retained effectiveness of the fluids for use as a drilling fluid are accomplished through the blending or mixing of the fluids.
In preparing the blends of the invention, preferably the blending or mixing is done, i.e., the blends are made, before the emulsion is formed or before other materials or compounds are added to the fluid.
The blends of the invention most preferably comprise esters, and also preferably comprise isomerized, or internal, olefins. However, blends of the invention may also or alternatively comprise esters with other hydrocarbons. Alternatively, blends of the invention may comprise isomerized olefins and other hydrocarbons. In blends of the invention with esters, the esters may be used in any quantity. Preferably, however, the esters should comprise at least about 10 weight percent of the blend and may comprise up to about 99 weight percent of the blend. Preferred esters for blending are comprised of about C6to about C14 fatty acids and alcohols, and are particularly or more preferably disclosed in U.S. PatentNo. Re.36,066, reissued January 25, 1999 as areissue of U.S. PatentNo.5,232,910, assigned to Henkel KGaA of Dusseldorf, Germany, and Baroid Limited of London, England, and in U.S. Patent No. 5,252,554, issued October 12, 1993, and assigned to Henkel Kommanditgesellschaft auf Aktien of Dusseldorf, Germany and Baroid Limited of Aberdeen, Scotland. Esters disclosed in U.S. Patent No. 5,106,516, issued April 21, 1992, and U.S. Patent No. 5,318,954, issued June 7, 1984, both assigned to Henkel Kommanditgesellschaft auf Aktien, of Dusseldorf, Germany, may also preferably be used in the blends of the invention. The most preferred esters for use in the blends of the invention are comprised of about C12 to about C14 fatty acids and 2-ethyl hexanol or about C8 fatty acids and 2-ethyl hexanol. These most preferred esters are available commercially as PETROFREE® and PETROFREE LN™, respectively, from Halliburton Energy Services, Inc. in Houston, Texas. Isomerized, or internal, olefins for the blends of the invention may be any such olefins, straight chain, branched, or cyclic, preferably having about 10 to about 30 carbon atoms. Isomerized, or internal, olefins having about 40 to about 70 weight percent C16 and about 20 to about 50 weight percent C18 are especially preferred for blends of the invention. An example of an isomerized olefin for blends of the invention that is commercially available is SF™ Base, available from Halliburton Energy Services, h e. in Houston, Texas.
As previously noted for the blends of the invention, esters may be blended with other hydrocarbons, in addition to or instead of with isomerized olefins. Particularly, for example, esters may be blended with paraffins, mineral oil hydrocarbons, and/or glyceride triesters, where such other hydrocarbons comprise from about 1 weight percent to about 99 weight percent of the blend.
Paraffins for the blends of the invention may be linear, branched, poly-branched, cyclic, or isoparaffins, preferably having about 10 to about 30 carbon atoms. When blended with esters of the invention, the paraffins should comprise at least about 1 weight percent to about 99 weight percent of the blend, but preferably less than about 50 weight percent. When blended with other hydrocarbons of the invention, particularly isomerized olefins, linear alpha olefins, or naphthenes as will be discussed further below, the paraffins should comprise at least about 1 weight percent up to about 99 weight percent of the blend, but preferably less than about 50 weight percent of the blend. An example of a paraffin suited for blends of the invention that is commercially available is XP-07™, available from Halliburton Energy Services, Inc in Houston, Texas. XP-07™ is primarily a C12_16 linear paraffin.
Examples of glyceride triesters for the ester/hydrocarbon blends of the invention include without limitation materials such as rapeseed oil, olive oil, canola oil, castor oil, coconut oil, corn oil, cottonseed oil, lard oil, linseed oil, neatsfoot oil, palm oil, peanut oil, perilla oil, rice bran oil, safflower oil, sardine oil, sesame oil, soybean oil, and sunflower oil. Further, the blends of the invention may be prepared from esters of the invention mixed with various combinations of the olefin hydrocarbons, paraffin hydrocarbons, mineral oil hydrocarbons and glyceride triesters, and even with the hydrocarbon blends of the invention (as the term "hydrocarbon blends" has previously been defined herein). In such combination blends, the olefin or other hydrocarbon combinations should preferably comprise about 1 to about 99 weight percent of the blend and the esters of the invention should preferably comprise about 10 to about 99 weight percent of the blend, although any quantity of the esters may be used.
The hydrocarbon blends of the invention comprise isomerized olefins blended with other hydrocarbons such as paraffin hydrocarbons. That is, about 1 weight percent to about 99 weight percent isomerized olefins may be blended with about 1 weight percent to about 99 weight percent linear alpha olefins, naphthenes, paraffins, or other similar hydrocarbons, or combinations thereof.
The paraffin hydrocarbons may be linear, branched, poly-branched, cyclic, or isoparaffins preferably having about 10 to about 30 carbon atoms. The linear alpha olefins and the isomerized olefins preferably have about 10 to about 30 carbon atoms . The isomerized olefins may be internal olefins (either straight chain or branched), cyclic olefins, or olefins with any other structure (preferably other than linear alpha). The naphthenes or napthenic hydrocarbons may be any saturated, cycloparaffinic compound, composition or material with a chemical formula of CnH2n where n is a number about 5 to about 30. These hydrocarbon blends may be further blended with the ester blends of the invention.
In such blends, the esters may be any quantity but the esters preferably comprise at least about 10 weight percent and less than about 99 weight percent of the ultimate blend.
The exact proportions of the components comprising the blends of the invention will vary depending on drilling requirements (and characteristics needed for the blends to meet those requirements), supply and availability of the components, cost of the components, and characteristics of the blend necessary to meet environmental regulations or environmental acceptance. The manufacture of the various components of the blends of the invention will be understood by one skilled in the art.
According to the method of the invention, blends of the invention are obtained or prepared and used to comprise the oil (or synthetic) base of an invert emulsion or oil-based drilling fluid.
The fluid is used for drilling a borehole or wellbore in a subterranean formation, particularly a formation comprising oil, gas or other hydrocarbons.
The foregoing description of the invention is intended to be a description of preferred embodiments. Various changes in the details of the described blends and method of use can be made without departing from the intended scope of this invention as defined by the appended claims.

Claims

We claim:
1. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising a blend of esters and isomerized olefins.
2. The drilling fluid of claim 1 wherein said isomerized olefins have a straight chain structure.
3. The drilling fluid of claim 1 wherein said isomerized olefins have a branched structure.
4. The drilling fluid of claim 1 wherein said isomerized olefins have a cyclic structure.
5. The drilling fluid of claim 1 wherein said isomerized olefins have about 10 to about 30 carbon atoms.
6. The drilling fluid of claim 1 wherein said isomerized olefins comprise about 1 to about 99 weight percent of said blend.
7. The drilling fluid of claim 1 wherein said esters comprise about 5 to about 99 weight percent of said blend.
8. The drilling fluid of claim 1 wherein said esters are prepared from fatty acids and alcohols.
9. The drilling fluid of claim 1 wherein said esters are prepared from fatty acids having about 6 to about 14 carbon atoms and an alcohol.
10. The drilling fluid of claim 1 wherein said esters are prepared from fatty acids having about 12 to about 14 carbon atoms and 2-ethyl hexanol.
11. The drilling fluid of claim 1 wherein said esters are prepared from fatty acids having about 8 carbon atoms and 2-ethyl hexanol.
12. The drilling fluid of claim 1 wherein said esters are prepared from olefins.
13. The drilling fluid of claim 1 wherein said esters are prepared from olefins and fatty acids or alcohols.
14. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising a blend of esters and olefin hydrocarbons.
15. The drilling fluid of claim 14 wherein said olefin hydrocarbons are selected from the group comprising branched olefins, poly-branched olefins, and mixtures thereof.
16. The drilling fluid of claim 15 wherein at least one double bond site is either internal the molecule or at the alpha position of the molecule.
17. The drilling fluid of claim 14 wherein said olefin hydrocarbons comprise linear olefins where the double bond site or sites are internal the molecule.
18. The drilling fluid of claim 14 wherein said olefin hydrocarbons comprise about 10 to about 30 carbon atoms.
19. The drilling fluid of claim 14 wherein said olefin hydrocarbons comprise about about 1 to about 99 weight percent of said blend.
20. The drilling fluid of claim 14 wherein said esters comprise about 10 to about 99 weight percent of said blend.
21. The drilling fluid of claim 14 wherein said esters are prepared from fatty acids and alcohols.
22. The drilling fluid of claim 14 wherein said esters are prepared from fatty acids having about 6 to about 14 carbon atoms and an alcohol.
23. The drilling fluid of claim 14 wherein said esters are prepared from fatty acids having about 12 to about 14 carbon atoms and 2-ethyl hexanol.
24. The drilling fluid of claim 14 wherein said esters are prepared from fatty acids having about 8 carbon atoms and 2-ethyl hexanol.
25. The drilling fluid of claim 14 wherein said esters are prepared from olefins.
26. The drilling fluid of claim 14 wherein said esters are prepared from olefins and fatty acids or alcohols.
27. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising a blend of esters and paraffin hydrocarbons.
28. The drilling fluid of claim 27 wherein said paraffin hydrocarbons are selected from the group comprising linear paraffins, branched paraffins, poly-branched paraffins, cyclic paraffins, isoparaffins, and mixtures thereof.
29. The drilling fluid of claim 27 wherein said paraffin hydrocarbons have about 10 to about 30 carbon atoms.
30. The drilling fluid of claim 27 wherein said paraffin hydrocarbons comprise about 1 to about 99 weight percent of said blend.
31. The drilling fluid of claim 27 wherein said esters comprise about 10 to about 99 weight percent of said blend.
32. The drilling fluid of claim 27 wherein said esters are prepared from fatty acids and alcohols.
33. The drilling fluid of claim 27 wherein said esters are prepared from fatty acids having about 6 to about 14 carbon atoms and an alcohol.
34. The drilling fluid of claim 27 wherein said esters are prepared from fatty acids having about 12 to about 14 carbon atoms and 2-ethyl hexanol.
35. The drilling fluid of claim 27 wherein said esters are prepared from fatty acids having about 8 carbon atoms and 2-ethyl hexanol.
36. The drilling fluid of claim 27 wherein said esters are prepared from olefins.
37. The drilling fluid of claim 27 wherein said esters are prepared from olefins and fatty acids or alcohols.
38. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising a blend of esters and mineral oil hydrocarbons.
39. The drilling fluid of claim 38 wherein said mineral oil hydrocarbons comprise less than about 1 weight percent aromatics.
40. The drilling fluid of claim 38 wherein said mineral oil hydrocarbons are selected from the group comprising linear paraffins, isoparaffins, cycloparaffins, branched paraffins, cyclic paraffins, and mixtures thereof, having about 10 to about 30 carbon atoms.
41. The drilling fluid of claim 38 wherein said mineral oil hydrocarbons comprise olefins, having about 10 to about 30 carbon atoms.
42. The drilling fluid of claim 41 wherein said olefins have chemical structures similar to paraffins, isoparaffins, cycloparaffins, or branched paraffins.
43. The drilling fluid of claim 38 wherein said esters comprise at least about 10 to about 99 weight percent of said blend.
44. The drilling fluid of claim 38 wherein said esters are prepared from fatty acids and alcohols.
45. The drilling fluid of claim 38 wherein said esters are prepared from fatty acids having about 6 to about 14 carbon atoms and 2-ethyl hexanol.
46. The drilling fluid of claim 44 wherein said esters are prepared from fatty acids having about 12 to about 14 carbon atoms and 2-ethyl hexanol.
47. The drilling fluid of claim 44 wherein said esters are prepared from fatty acids having about 8 carbon atoms and 2-ethyl hexanol.
48. The drilling fluid of claim 38 wherein said esters are prepared from olefins.
49. The drilling fluid of claim 38 wherein said esters are prepared from olefins and fatty acids or alcohols.
50. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising a blend of esters and glyceride triesters.
51. The drilling fluid of claim 50 wherein said glyceride triesters comprise about 1 to about 99 weight percent of said blend.
52. The drilling fluid of claim 50 wherein said glyceride triesters are obtained or derived from an oil selected from the group comprising: rapeseed oil, olive oil, canola oil, castor oil, coconut oil, corn oil, cottonseed oil, lard oil, linseed oil, neatsfoot oil, palm oil, peanut oil, perilla oil, rice bran oil, safflower oil, sardine oil, sesame oil, soybean oil, sunflower oil, and mixtures thereof.
53. The drilling fluid of claim 50 wherein said esters comprise about 10 to about 99 weight percent of said blend.
54. The drilling fluid of claim 50 wherein said esters are prepared from fatty acids and alcohols.
55. The drilling fluid of claim 54 wherein said esters are prepared from fatty acids having about 12 to about 14 carbon atoms and 2-ethyl hexanol.
56. The drilling fluid of claim 54 wherein said esters are prepared from fatty acids and alcohols having about 8 carbon atoms and 2-ethyl hexanol.
57. The drilling fluid of claim 50 wherein said esters are prepared from olefins.
58. The drilling fluid of claim 50 wherein said esters are prepared from olefins and fatty acids or alcohols.
59. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising a blend of linear alpha olefins and paraffin hydrocarbons.
60. The drilling fluid of claim 59 wherein said paraffin hydrocarbons are selected from the group comprising linear paraffins, branched paraffins, poly-branched paraffins, cyclic paraffins, isoparaffins, and mixtures thereof.
61. The drilling fluid of claim 59 wherein said paraffin hydrocarbons have about 10 to about 30 carbon atoms.
62. The drilling fluid of claim 59 wherein said paraffin hydrocarbons comprise about 1 to about 99 weight percent of said blend.
63. The drilling fluid of claim 59 wherein said paraffin hydrocarbons comprise less than about 50 weight percent of the blend.
64. The drilling fluid of claim 59 wherein said linear alpha olefins comprise about 1 to about 99 weight percent of said drilling fluid.
65. The drilling fluid of claim 59 wherein said linear alpha olefins comprise about 10 to about 30 carbon atoms.
66. A drilling fluid comprising an invert emulsion where said invert emulsion has a base or continuous phase comprising isomerized olefins and paraffin hydrocarbons.
67. The drilling fluid of claim 66 wherein said paraffin hydrocarbons are selected from the group comprising linear paraffins, branched paraffins, poly-branched paraffins, cyclic paraffins, isoparaffins, or mixtures thereof.
68. The drilling fluid of claim 66 wherein said paraffin hydrocarbons have about lOto about 30 carbon atoms.
69. The drilling fluid of claim 66 wherein said paraffin hydrocarbons comprise about 1 to about 99 weight percent of said blend.
70. The drilling fluid of claim 66 wherein said isomerized olefins comprise about 1 to about 99 weight percent of said drilling fluid.
71. The drilling fluid of claim 66 wherein said isomerized olefins have about 10 to about 30 carbon atoms.
72. The drilling fluid of claim 56 wherein said isomerized olefins are selected from the group comprising internal olefins, cyclic olefins, and mixtures thereof.
73. The drilling fluid of claim 72 wherein said internal olefins may be straight chain or branched chain.
74. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising a blend of naphthenic hydrocarbons and other paraffin hydrocarbons.
75. The drilling fluid of claim 74 wherein said paraffin hydrocarbons are selected from the group comprising linear paraffins, branched paraffins, poly-branched paraffins, isoparaffins, or mixtures thereof.
76. The drilling fluid of claim 74 wherein said paraffin hydrocarbons have about 10 to about 30 carbon atoms.
77. The drilling fluid of claim 74 wherein said paraffin hydrocarbons comprise about 1 to about 99 weight percent of said blend.
78. The drilling fluid of claim 74 wherein said napthenic hydrocarbons comprise about 1 to about 99 weight percent of said drilling fluid.
79. The drilling fluid of claim 74 wherein said napthenic hydrocarbons comprise a saturated, cycloparaffmic material having a chemical formula: nH2n where n is about 5 to about 30.
80. A drilling fluid comprising an invert emulsion wherein said invert emulsion has a base or continuous phase comprising isomerized olefins and other hydrocarbons.
81. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 1 and circulating same in said'wellbore during said drilling.
82. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 14 and circulating same in said wellbore during said drilling.
83. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 27 and circulating same in said wellbore during said drilling.
84. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 38 and circulating same in said wellbore during said drilling.
85. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 50 and circulating same in said wellbore during said drilling.
86. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 59 and circulating same in said wellbore during said drilling.
87. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 66 and circulating same in said wellbore during said drilling.
88. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 74 and circulating same in said wellbore during said drilling.
89. A method of drilling a wellbore in a subtenanean formation, said method comprising obtaining or preparing the drilling fluid of claim 80 and circulating same in said wellbore during said drilling.
PCT/US2002/021444 2001-08-14 2002-07-08 Blends of esters with isomerized olefins and other hydrocarbons as base oils for invert emulsion oil muds WO2003016425A1 (en)

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BR0211777-0A BR0211777A (en) 2001-08-14 2002-07-08 Drilling fluid, and method for drilling a wellbore in an underground formation
MXPA04001381A MXPA04001381A (en) 2001-08-14 2002-07-08 Blends of esters with isomerized olefins and other hydrocarbons as base oils for invert emulsion oil muds.
CA002456208A CA2456208A1 (en) 2001-08-14 2002-07-08 Blends of esters with isomerized olefins and other hydrocarbons as base oils for invert emulsion oil muds
EP02749832A EP1417278A1 (en) 2001-08-14 2002-07-08 Blends of esters with isomerized olefins and other hydrocarbons as base oils for invert emulsion oil muds
NO20040630A NO20040630L (en) 2001-08-14 2004-02-12 Drilling fluid based on water-in-oil emulsion

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Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002053675A1 (en) * 2000-12-29 2002-07-11 Halliburton Energy Services, Inc. Thinners for invert emulsions
US7456135B2 (en) * 2000-12-29 2008-11-25 Halliburton Energy Services, Inc. Methods of drilling using flat rheology drilling fluids
US6887832B2 (en) * 2000-12-29 2005-05-03 Halliburton Energy Service,S Inc. Method of formulating and using a drilling mud with fragile gels
US7066284B2 (en) * 2001-11-14 2006-06-27 Halliburton Energy Services, Inc. Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
US7607483B2 (en) 2004-04-19 2009-10-27 Halliburton Energy Services, Inc. Sealant compositions comprising colloidally stabilized latex and methods of using the same
US7534745B2 (en) * 2004-05-05 2009-05-19 Halliburton Energy Services, Inc. Gelled invert emulsion compositions comprising polyvalent metal salts of an organophosphonic acid ester or an organophosphinic acid and methods of use and manufacture
EP1913111B1 (en) * 2004-06-03 2012-12-19 M-I L.L.C. The use of sized barite as a weighting agent for drilling fluids
US7259130B2 (en) * 2004-08-03 2007-08-21 Halliburton Energy Services, Inc. Set-on demand, ester-based wellbore fluids and methods of using the same
US7150322B2 (en) * 2004-08-24 2006-12-19 Halliburton Energy Services, Inc. Cement compositions comprising environmentally compatible defoamers and methods of use
US20060073981A1 (en) * 2004-10-06 2006-04-06 Gee Jeffery C Methods of preparing non-aqueous fluids suitable for use in wellbore servicing fluids
US20070111901A1 (en) 2005-11-11 2007-05-17 Reddy B R Method of servicing a wellbore with a sealant composition comprising solid latex
US7488705B2 (en) 2004-12-08 2009-02-10 Halliburton Energy Services, Inc. Oilwell sealant compositions comprising alkali swellable latex
US20080261836A1 (en) * 2007-04-20 2008-10-23 Filler Paul A Compositions for use in well servicing fluids
EP2053111B1 (en) * 2007-10-24 2016-12-07 Emery Oleochemicals GmbH Drilling composition, process for its preparation and applications thereof
US7902128B2 (en) * 2008-04-29 2011-03-08 Halliburton Energy Services Inc. Water-in-oil emulsions with hydrogel droplets background
US8691733B2 (en) * 2009-09-01 2014-04-08 Halliburton Energy Services, Inc. Suspension characteristics in invert emulsions
US8763695B2 (en) 2010-04-15 2014-07-01 Halliburton Energy Services, Inc. Electrically conductive oil-based drilling fluids
US20120071368A1 (en) * 2010-04-27 2012-03-22 Suncor Energy Inc. Drilling Fluid for Enhanced Rate of Penetration
US8969259B2 (en) 2013-04-05 2015-03-03 Reg Synthetic Fuels, Llc Bio-based synthetic fluids
WO2016014512A1 (en) 2014-07-21 2016-01-28 Baker Hughes Incorporated Electrically conductive oil-based fluids
BR112017001283A2 (en) 2014-07-21 2017-11-14 Baker Hughes Inc electrically conductive oil based fluids
US10060189B2 (en) * 2014-09-19 2018-08-28 Chevron U.S.A. Inc. Hexadecene synthetic drilling fluid with improved environmental properties
US10208540B2 (en) * 2014-10-30 2019-02-19 Chevron U.S.A. Inc. Non-toxic, inexpensive, low viscosity mineral oil based drilling fluid
US9580636B2 (en) 2015-04-30 2017-02-28 Chevron Phillips Chemical Company Lp Secondary esters, methods of making, and uses thereof
CN106893567A (en) * 2015-12-18 2017-06-27 中国石油化工股份有限公司 A kind of environment-friendly type synthetic base drilling fluid
WO2018048385A1 (en) * 2016-09-06 2018-03-15 Halliburton Energy Services, Inc. Invert emulsion containing vegetable oil
US10683449B2 (en) 2017-02-13 2020-06-16 Q'max Solutions Inc. Rheology drilling fluid and method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403822A (en) * 1989-03-08 1995-04-04 Henkel Kommanditgesellschaft Auf Aktien Esters of carboxylic acids of medium chain-length as a component of the oil phase in invert drilling muds
WO1995026386A1 (en) * 1994-03-26 1995-10-05 Heriot-Watt University Drilling mud
US5846913A (en) * 1993-09-01 1998-12-08 Dowell, A Division Of Schlumberger Technology Corporation Invert biodegradable n-alkane(s) wellbore fluid containing less than 10 percent by weight of cycloparaffing isoparaffing and aromatic compounds, and method of drilling with such fluid
US5869434A (en) * 1994-06-13 1999-02-09 Henkel Kommanditgesellschaft Auf Aktien Free-flowing borehole servicing preparations containing linear α-olefins, more patricularly corresponding drilling fluids
US20010009890A1 (en) * 1996-08-02 2001-07-26 Patel Arvind D. Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility
US6410488B1 (en) * 1999-03-11 2002-06-25 Petro-Canada Drilling fluid

Family Cites Families (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816073A (en) * 1956-07-16 1957-12-10 Phillips Petroleum Co Drilling fluid
US3684012A (en) * 1970-06-12 1972-08-15 John W Scheffel Method and composition for treating high-temperature subterranean formations
US3878117A (en) * 1973-05-17 1975-04-15 Phillips Petroleum Co Novel benzothiazyl disulfides, their preparation and use as lubricant additives
US3928215A (en) * 1973-06-29 1975-12-23 Marathon Oil Co High fluidity cutting oils which exhibit retro-viscous properties
US4012329A (en) * 1973-08-27 1977-03-15 Marathon Oil Company Water-in-oil microemulsion drilling fluids
US3912683A (en) * 1974-07-12 1975-10-14 Exxon Research Engineering Co Process for the preparation of sulfobutyl latex
US4148821A (en) * 1974-10-16 1979-04-10 Stepan Chemical Company Process for sulfonation
US4390474A (en) * 1974-10-16 1983-06-28 Stepan Chemical Company Sulfonation petroleum composition
US4025443A (en) * 1975-03-17 1977-05-24 Jackson Jack M Clay-free wellbore fluid
CA1070491A (en) * 1975-03-17 1980-01-29 Jack M. Jackson Clay-free wellbore fluid comprising guar gum
US4007149A (en) * 1975-07-02 1977-02-08 Exxon Research And Engineering Company Process for preparing latices of sulfonated elastomers
US4153588A (en) * 1977-11-29 1979-05-08 Exxon Research & Engineering Co. Metal neutralized sulfonated EPDM terpolymers and compositions thereof
US4240915A (en) * 1978-07-13 1980-12-23 W. R. Grace & Co. Drilling mud viscosifier
US4255268A (en) * 1978-07-14 1981-03-10 W. R. Grace & Co. Drilling mud viscosifier
US4262455A (en) * 1978-08-24 1981-04-21 Contraves Goerz Corporation Head positioning for a belt grinder
US4229610A (en) * 1978-11-03 1980-10-21 Phillips Petroleum Company Olefin double bond isomerization
US4366070A (en) * 1980-04-28 1982-12-28 W. R. Grace & Co. Viscosifier & fluid loss control system
US4422947A (en) * 1980-12-19 1983-12-27 Mayco Wellchem, Inc. Wellbore fluid
US4473479A (en) * 1981-02-27 1984-09-25 W. R. Grace & Co. Viscosifier and fluid loss control system
US4447338A (en) * 1981-08-12 1984-05-08 Exxon Research And Engineering Co. Drilling mud viscosification agents based on sulfonated ionomers
US4428845A (en) * 1981-12-02 1984-01-31 W. R. Grace & Co. Viscosifier and fluid loss control system
WO1983002949A1 (en) 1982-02-18 1983-09-01 Richard Pawel Jachnik Drilling fluids and methods of using them
US4619772A (en) * 1982-05-23 1986-10-28 Black James K Method and material for increasing viscosity and controlling of oil well drilling and work-over fluids
US4425462A (en) * 1982-09-13 1984-01-10 Exxon Research And Engineering Co. Drilling fluids based on sulfonated elastomeric polymers
US4488975A (en) * 1982-12-13 1984-12-18 Halliburton Company High temperature stable crosslinked gel fracturing fluid
DE3400164A1 (en) * 1983-01-14 1984-07-19 Sandoz-Patent-GmbH, 7850 Lörrach LIQUID LOSS REDUCING ADDITIVES FOR PUNCHING LIQUIDS
US4787990A (en) * 1983-02-04 1988-11-29 Conoco Inc. Low toxicity oil-based drilling fluid
US4508628A (en) * 1983-05-19 1985-04-02 O'brien-Goins-Simpson & Associates Fast drilling invert emulsion drilling fluids
US4553601A (en) * 1984-09-26 1985-11-19 Halliburton Company Method for fracturing subterranean formations
US4552215A (en) * 1984-09-26 1985-11-12 Halliburton Company Method of gravel packing a well
GB2166782A (en) 1984-11-07 1986-05-14 Mobil Oil Corp Low toxicity drilling fluids
US4810355A (en) * 1985-12-12 1989-03-07 Amoco Corporation Process for preparing dehazed white oils
DE3766007D1 (en) * 1986-05-30 1990-12-13 British Petroleum Co DRILLING LIQUID.
GB8615478D0 (en) 1986-06-25 1986-07-30 Bp Chem Int Ltd Low toxity oil composition
DE3622826A1 (en) * 1986-07-08 1988-01-21 Henkel Kgaa POWDERED LUBRICANT ADDITIVES FOR WATER-BASED DRILL RINSING
GB2212192A (en) 1987-11-09 1989-07-19 Exxon Chemical Patents Inc Low toxicity oil base mud systems
US5045219A (en) * 1988-01-19 1991-09-03 Coastal Mud, Incorporated Use of polyalphalolefin in downhole drilling
DE3801476A1 (en) * 1988-01-20 1989-08-03 Henkel Kgaa COMPOSITIONS FOR THE EXEMPTION OF FIXED DRILLING RESTAURANTS
US4802298A (en) * 1988-04-08 1989-02-07 Baugus Ronald G Gun cylinder lock device
US4915794A (en) * 1988-10-27 1990-04-10 Shell Oil Company Process for converting internal olefins to alpha olefins
US5252554A (en) * 1988-12-19 1993-10-12 Henkel Kommanditgesellschaft Auf Aktien Drilling fluids and muds containing selected ester oils
US5232910A (en) * 1988-12-19 1993-08-03 Henkel Kommanditgesellschaft Auf Aktien Use of selected ester oils in drilling fluids and muds
USRE36066E (en) * 1988-12-19 1999-01-26 Henkel Kgaa Use of selected ester oils in drilling fluids and muds
DE3903784A1 (en) * 1989-02-09 1990-08-16 Henkel Kgaa MONOCARBONIC ACID METHYL ESTER IN INVERT DRILLING CLOSURE
US5254531A (en) * 1989-02-09 1993-10-19 Henkel Kommanditgesellschaft Auf Aktien Oleophilic basic amine compounds as an additive for invert drilling muds
US5318954A (en) * 1989-03-08 1994-06-07 Henkel Kommanditgesellschaft Auf Aktien Use of selected ester oils of low carboxylic acids in drilling fluids
US5318955A (en) * 1989-04-07 1994-06-07 Henkel Kommanditgesellschaft Auf Aktien Use of selected ethers of monofunctional alcohols in drilling fluids
US5318956A (en) * 1989-05-16 1994-06-07 Henkel Kommanditgesellschaft Auf Aktien Use of selected ester oils in water-based drilling fluids of the O/W emulsion type and corresponding drilling fluids with improved ecological acceptability
DE3923394A1 (en) * 1989-07-14 1991-01-17 Henkel Kgaa ALCOXYLATION PRODUCTS OF OH GROUP-CONTAINING CARBONIC ACID DERIVATIVES AND / OR CARBONIC ACIDS
USH935H (en) * 1989-11-13 1991-07-02 M-I Drilling Fluids Company Compositions for oil-base drilling fluids
US5189012A (en) * 1990-03-30 1993-02-23 M-I Drilling Fluids Company Oil based synthetic hydrocarbon drilling fluid
DE4014859A1 (en) 1990-05-09 1991-11-14 Henkel Kgaa USE OF A COMBINATION OF IONIC AND NON-IONIC SURFACES
DE4019266A1 (en) * 1990-06-16 1992-01-23 Henkel Kgaa FLOW -ABLE BOHRLOCHANGE AGENTS BASED ON POLYCARBONIC ACID ESTERS
US5508258A (en) * 1990-08-03 1996-04-16 Henkel Kommanditgesellschaft Auf Aktien Use of surface-active alpha-sulfo-fatty acid di-salts in water and oil based drilling fluids and other drill-hole treatment agents
DE4024658A1 (en) 1990-08-03 1992-04-16 Henkel Kgaa USE OF SURFACE-ACTIVE ALKYL GLYCOSIDE COMPOUNDS IN WATER- AND OIL-BASED DRILLING AND OTHER DRILLING TREATMENT AGENTS
US5191145A (en) * 1991-03-25 1993-03-02 Ethyl Corporation Continuous process for preparing aluminum alkyls and linear 1-olefins from internal olefins
US5382290A (en) * 1991-04-26 1995-01-17 Shell Oil Company Conversion of oil-base mud to oil mud-cement
US5744677A (en) * 1991-10-16 1998-04-28 Amoco Corporation Ethylene oligomerization
CA2091419A1 (en) 1992-03-17 1993-09-18 James H. Bush Compositions containing esters of carboxy-containing interpolymers and methods of using the same
CA2091420A1 (en) * 1992-03-17 1993-09-18 Richard W. Jahnke Compositions containing combinations of surfactants and derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same
US5330662A (en) * 1992-03-17 1994-07-19 The Lubrizol Corporation Compositions containing combinations of surfactants and derivatives of succinic acylating agent or hydroxyaromatic compounds and methods of using the same
DE59300931D1 (en) * 1992-05-13 1995-12-21 Hoechst Ag Nonionic, flowable pearlescent dispersions.
US5407909A (en) * 1992-07-15 1995-04-18 Kb Technologies, Ltd. Earth support fluid composition and method for its use
US5333698A (en) * 1993-05-21 1994-08-02 Union Oil Company Of California White mineral oil-based drilling fluid
WO1994028087A1 (en) * 1993-06-01 1994-12-08 Albemarle Corporation Invert drilling fluids
US5498596A (en) * 1993-09-29 1996-03-12 Mobil Oil Corporation Non toxic, biodegradable well fluids
US5552462A (en) * 1993-11-22 1996-09-03 Rhone-Poulenc Inc. Compositions including cationic polymers and anionic xanthan gum
AU1609695A (en) * 1994-02-02 1995-08-21 Chevron Chemical Company Drilling fluids comprising mostly linear olefins
IE73273B1 (en) 1994-03-30 1997-05-21 Irish Sugar Research And Dev L A pulp and sugar process
US5691281A (en) * 1994-10-06 1997-11-25 Mobil Oil Corporation Well fluids based on low viscosity synthetic hydrocarbons
US5569642A (en) * 1995-02-16 1996-10-29 Albemarle Corporation Synthetic paraffinic hydrocarbon drilling fluid
US5607901A (en) * 1995-02-17 1997-03-04 Bp Exploration & Oil, Inc. Environmentally safe annular fluid
US5958845A (en) * 1995-04-17 1999-09-28 Union Oil Company Of California Non-toxic, inexpensive synthetic drilling fluid
US5635457A (en) * 1995-04-17 1997-06-03 Union Oil Company Of California Non-toxic, inexpensive synthetic drilling fluid
US6090754A (en) * 1995-05-11 2000-07-18 Atlantic Richfield Company Surfactant blends for well operation
US5877378A (en) * 1995-06-14 1999-03-02 Amoco Corporation Process for selective utilization of alpha-olefins in mixtures containing non-alpha-olefins
IT1276802B1 (en) * 1995-06-30 1997-11-03 Enichem Spa INTEGRATED PROCEDURE FOR THE PRODUCTION OF BUTENE-1
DE19546911A1 (en) * 1995-12-15 1997-06-19 Henkel Kgaa New aqueous-swellable preparations of guar and guar derivatives in oleophilic liquids and their use
US5929297A (en) * 1995-12-20 1999-07-27 Bp Amoco Corporation Olefin oligomerization process
GB9601019D0 (en) 1996-01-18 1996-03-20 Sofitech Nv Wellbore fluid
DE69611028T2 (en) * 1996-01-30 2001-07-19 Bp Amoco Corp Process for the isomerization of olefins
US5968845A (en) 1996-02-13 1999-10-19 Matsushita Electric Industrial Co., Ltd. Method for etching a compound semiconductor, a semi-conductor laser device and method for producing the same
US5837655A (en) * 1996-05-01 1998-11-17 Halliday; William S. Purified paraffins as lubricants, rate of penetration enhancers, and spotting fluid additives for water-based drilling fluids
DE19643857A1 (en) * 1996-10-30 1998-05-07 Henkel Kgaa Use of biodegradable alkoxylation products to clean boreholes, drilling equipment or cuttings
US6022833A (en) * 1996-10-30 2000-02-08 Henkel Kommanditgesellschaft Auf Aktien Multicomponent mixtures for use in geological exploration
TW354352B (en) * 1996-10-30 1999-03-11 Henkel Kgaa A process for easier cleaning on the basis of water/oil inversion emulifier
DE19647565A1 (en) * 1996-11-18 1998-05-20 Henkel Kgaa Multi-phase lubricant concentrates for use in water-based systems in the field of earth drilling
DE19652680A1 (en) * 1996-12-18 1998-06-25 Clariant Gmbh Mixtures of alkoxylates with foam-suppressing and disinfecting effects and their use in cleaning agents
US6339048B1 (en) 1999-12-23 2002-01-15 Elementis Specialties, Inc. Oil and oil invert emulsion drilling fluids with improved anti-settling properties
US5909779A (en) * 1997-08-19 1999-06-08 M-I L.L.C. Oil-based drilling fluids suitable for drilling in the presence of acidic gases
BR8002730U (en) * 2000-12-05 2002-07-09 Hans Mueller Multi-function tool
US6887832B2 (en) * 2000-12-29 2005-05-03 Halliburton Energy Service,S Inc. Method of formulating and using a drilling mud with fragile gels
US7456135B2 (en) * 2000-12-29 2008-11-25 Halliburton Energy Services, Inc. Methods of drilling using flat rheology drilling fluids
US6515031B2 (en) * 2001-02-13 2003-02-04 Platte Chemical Company Technique for emulsifying highly saturated hydroisomerized fluids

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403822A (en) * 1989-03-08 1995-04-04 Henkel Kommanditgesellschaft Auf Aktien Esters of carboxylic acids of medium chain-length as a component of the oil phase in invert drilling muds
US5846913A (en) * 1993-09-01 1998-12-08 Dowell, A Division Of Schlumberger Technology Corporation Invert biodegradable n-alkane(s) wellbore fluid containing less than 10 percent by weight of cycloparaffing isoparaffing and aromatic compounds, and method of drilling with such fluid
WO1995026386A1 (en) * 1994-03-26 1995-10-05 Heriot-Watt University Drilling mud
US5869434A (en) * 1994-06-13 1999-02-09 Henkel Kommanditgesellschaft Auf Aktien Free-flowing borehole servicing preparations containing linear α-olefins, more patricularly corresponding drilling fluids
US20010009890A1 (en) * 1996-08-02 2001-07-26 Patel Arvind D. Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility
US6410488B1 (en) * 1999-03-11 2002-06-25 Petro-Canada Drilling fluid

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US7485602B2 (en) 2009-02-03
US20030036484A1 (en) 2003-02-20
EP1417278A1 (en) 2004-05-12
NO20040630L (en) 2004-04-13
US20040152603A1 (en) 2004-08-05
MXPA04001381A (en) 2004-07-16
BR0211777A (en) 2004-07-27

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