|Número de publicación||US3386508 A|
|Tipo de publicación||Concesión|
|Fecha de publicación||4 Jun 1968|
|Fecha de presentación||21 Feb 1966|
|Fecha de prioridad||21 Feb 1966|
|Número de publicación||US 3386508 A, US 3386508A, US-A-3386508, US3386508 A, US3386508A|
|Inventores||Bielstein Walter J, Rawl Lawrence G|
|Cesionario original||Exxon Production Research Co|
|Exportar cita||BiBTeX, EndNote, RefMan|
|Citas de patentes (9), Citada por (153), Clasificaciones (10)|
|Enlaces externos: USPTO, Cesión de USPTO, Espacenet|
June 4, 1968 w. J. BIELSTEIN ETAL 3,386,508
PROCESS AND SYSTEM FOR THE RECOVERY OF VISCOUS OIL Filed Feb. 21, 1966 2 Sheets-Sheet 1 SHALE SLOTTED CASING I I INVENT0R$ l m rum .LBIELSTEII, l BY mum mun,
1'4 me. 1 m2.
June 4, 1968 PROCESS AND SYSTEM FOR THE RECOVERY OF VISCOUS OIL Filed Feb. 21, 1966 W. J. BIELSTEIN ETAL INJECTION FLUlD $TE/AM & nor WATER- now SLOTTED sscnou 21 STEAM & HOT WATER FLOW 2 Sheets-Sheet 2 IIIIIIIIIIIIIIIIIHHI:
United States Patent 3,386,508 PROCESS AND SYSTEM FOR THE RECOVERY OF VISCOUS OIL Walter J. Bielstein and Lawrence G. Raw], Houston, Tex., assignors to Esso Production Research Company Filed Feb. 21, 1966, Ser. No. 529,020 10 Claims. (Cl. 166-11) ABSTRACT OF THE DISCLOSURE A well bore is drilled into a subsurface formation containing viscous oil and then a plurality of wells is drilled to intersect the well bore and hot fluid is injected into the formation through the plurality of wells to cause viscous hydrocarbons to flow into the well bore.
The present invention is directed to recovery of viscous oil. More particularly, the invention is concerned with the recovery of viscous oils by the use of heat. In its more specific aspects, the invention is concerned with the recovery of viscous oils in which heated fluids are injected into a subsurface earth formation containing the viscous oils.
The present invention may be briefly described as a method of recovering viscous hydrocarbons from a subsu-rfiace earth formation containing the viscous hydrocarbons in which a well bore is drilled at least into the subsurface earth formation containing the viscous hydrocarbons. This well bore may be relatively large and may have a diameter ranging from about 1 to about 10 feet. Preferably, it will have a diameter in the range from about 2 to about 5 feet. The well bore may be drilled to provide a sump in which the viscous oil may accumulate. A plurality of wells is then drilled to intersect the well bore in the subsurface formation at a point preferably above the bottom of the well .bore. The well bore and the plurality of wells communicate fluidly with the subsurface formation. A heated fluid which may be air, steam, hot water, combustion products or the like may be injected into the formation from the plurality of wells. Injection of the heated fluid causes heating of the subsurface formation and, therefore, causes the viscosity of the viscous hydrocarbons to be reduced to the extent that the viscous hydrocarbons flow into and accumulate in the well bore. The heated viscous hydrocarbons may flow through the formation to the well bore and/or into the plurality of wells and thence into the well bore. Ordinarily, both flows may occur. Thereafter, the viscous hydrocarbons may be removed from the well bore such as by pumping.
The temperature of the heated fluid, whether it be steam, hot water, air or combustion products, should be sufficient to heat the formation and to cause the viscous hydrocarbons to flow. A suitable temperature of the heated fluids may range from about 150 F. to about 650 F.
In the practice of the present invention, it is contemplated that the well bore Will be of relatively large diameter such as a diameter in the range of about 1 to about feet. A well bore ranging in diameter from about 2 to about 5 feet may be satisfactory. Likewise, in accordance with the present invention, the well bore should be drilled into the formation a suflicient distance "ice to provide a sump in which the viscous hydrocarbons accumulate. Thus, the well bore may be drilled completely through the subsurface formation containing the viscous hydrocarbons to provide a sump for the viscous hydrocarbons. The well bore may or may not be cased or lined with pipe.
Conversely, the wells Which intersect the Well bore should intersect the well bore at a point above the bottom of the well bore such that a Sump is provided for accumulation of viscous hydrocarbons in the well bore.
In accordance with the present invention, it is contemplated that the heated fluid will be injected selectively from the plurality of wells into the subsurface formation to cause heating of same and reduction of viscosity of the viscous hydrocarbons. Preferably, the heated fluid is injected selectively near the top of the viscous hydrocarbon-containing subsurface earth formation, but it is within the contemplation of the present invention that the heated fluid may be injected at any selected point in the subsurface formation. This may be accomplished by providing a vertically movable valved injector pipe or tubing in each of the Wells. The pipe is valved at its lower end and is also provided with a packer means just above the valve. A section of the pipe is slotted or perforated above the packer to allow fluid communication between the interior and exterior of the pipe. The valve means may be opened by response to certain temperatures or pressures. As the pipe is moved downwardly in the Well, the packer and closed valve control the area of fluid injection into the formation.
Another means of injecting the heated fluid at a selected point is to provide a valved pipe similar to that mentioned above with the added provision of two packers spaced apart, above and below the perforated or slotted section. In either case, all or part of the heated fluids may be pumped into the formation or through the well bore to the recovery well.
The present invention also involves a system for recovery of viscous hydrocarbons from a subsurface earth formation containing the viscous hydrocarbons which involves a well bore penetrating the subsurface formation having openings or perforations into the subsurface formation. A plurality of wells intersect the well bore in the subsurface formation and extend laterally through the subsurface formation, each of the plurality of wells having openings or perforations into the subsurface formation. Means are provided in each of the plurality of wells for injecting a heated fluid from the wells at least at a selected point into the subsurface earth formation. Means are provided in the Well bore for recovering viscous hydro-carbons which flow into and accumulate in the well bore. Such means may include a pumping or other lifting means. The present invention is quite advantageous and useful in that it allows substantially complete recovery of viscous hydrocarbons from subsurface earth formations which heretofore has been accomplished only with difficulty.
The present invention will be further illustrated by reference to the drawing in which:
FIGURE 1 is a sectional view of a system in which the present invention may be employed;
FIGURE 2 is a top view looking down on an arrangement of wells in accordane with the present invention;
FIGURE 3 is an enlarged fragmentary view of a por- 3 'tion of FIGURE 1 illustrating fluid action or flow during operation of the present invention; and
FIGURE 4 is a view partly in section illustrating a modification of the device of FIGURE 3.
Referring now to the drawing and particularly to FIG- URES 1 and 2, numeral 11 designates the earths surface from which a well bore 12 has been drilled by well known means to penetrate a subsurface earth formation 13 and to extend therethrough into an impervious formation 14. Also drilled into the subsurface earth formation 13 which contains viscous oil is a plurality of wells 15, 16, 17 and 18 which are drilled through the formation 13 and intersect the well bore 12. Extending from the earths surface into the well bore 12 is a tubing string 19 carrying a pump means 20 or other oil lifting means which is arranged adjacent the bottom of the well bore 12. Each of the wells 15, 16, 17 and 18 is provided, respectively, with casings 21, 22, 23 and 24.
The section of the well bore 12 below the casing 25 is suitably a slotted liner 26. Similarly, the sections of the casings 21, 22, 23 and 24 in the subsurface earth formation 13 may be slotted liners 27, 28, 29 and 30. Such slotted liners are well known.
The arrangement of the well bore 12 and the wells such as and 16 is shown in FIGURE 2 as a top view. Although only four injection wells are shown in FIGURE 1, it will be evident from FIGURE 2 that any desired number of wells may be drilled about the recovery well 12 to adequately blanket the desired area of recovery.
Each of the well casings 21-24 have positioned therein an injector pipe or tubing 31 which is movable vertically within the casing such as 21, illustrated in FIGURE 3. Tubing 31 has valve means 32 positioned at its lower end and also a packer means 33 just above the valve means. The section of tubing just above the packer 33 is provided with slots or perforations 34. The upper end of tubing 31 passes through a pack-off wellhead 35 (see FIGURE 1) and is valved at its upper end and also connected to a source of heated fluid. The wellhead 35 is also provided with a valved conduit 36 which is also connected to the source of fluid. The conduit 36 fluidly connects with the annulus between the casing and tubing. The valves are operably responsive (for opening and closing) to specific temperatures or pressures.
Referring now to FIGURE 4, it will be seen that the tubing such as 31A has been modified to provide two packer means such as 33 and 33A which are positioned, respectively, below and above the perforations 34 to afford a straddle pack effect. The tubing 31A is also provided with the valve means 32 at its lower end below packer means 33.
The present invention operates as follows. It will be assumed that the wells 12-18 have been drilled as in dicated and the tubing strings 19 and located as shown. A heated fluid such as air, steam or hot water, or flue gases at a temperature in the range indicated is then introduced into the formation surrounding the slotted sections of the wells 15, 16, 17 and 18. The tubing during this injection operation may be moved up and down in the casing with the valve 32 open or closed depending on the operation. Fluid such as steam may be introduced through the tubing and tubing-casing annulus A for the purpose of maintaining the heat in the formation adjacent the perforated liner. Until a large amount of heat has been dissipated into the formation, steam will need to be cycled through the injected well bores.
As the formation surrounding the slotted section, such as 27 shown in FIGURE 3, is heated, the viscosity of the oil is reduced to a point such that it flows into the well bore below the packer 33 and, hence, into the recovery well 12 and forms a body of oil 40 which may be then lifted to the surface by means of the pump 20 and tubing string 19. Although much of the lowered viscosity oil fiows through the various drain Wells to the recovery well, it
is evident that part of the oil may flow directly from the formation into the sump of the recovery well 12.
As the formation surrounding the slotted section, such tion is indicated by the short, arrowed lines while steam and hot water flow is indicated by the long curved arrowed lines. The flow of oil and water into the recovery well 12 is indicated by the heavy arrowed lines.
While it may be preferred to introduce the hot or heated fluid into the formation 13 adjacent the top thereof as shown in FIGURE 3, it is within the contemplation of the present invention to introduce the hot fluid selectively into any portion of the formation 13. Thus, at the beginning of the operation, it may be desirable to introduce the hot fluid near the top of the formation 13 and thereafter selectively and/or progressively introduce the hot fluid at lower points in the formation. This may be accomplished also by moving a tubing string such as 31 carrying a valve, such as 32, and packer 33 down any of the wells 15, 16, 17 or 18 and causing same to open by pressure differential, specific temperature, or by manipulation by wire lines from the surface as may be desired. For specific spotting of injection fluids into the formation, it is evident that the straddle packers of FIG- URE 4 would be more desirable.
The techniques for drilling large shafts ranging in diameter from 1 to 10 feet are well known and, therefore, will not be described further herein. Likewise, the techniques for drilling directional wells are well known and need not be described further.
As examples of types of viscous oil which may be recovered in accordance with the present invention, there are oil fields in California, Kansas and Texas, and elsewhere in the world which are susceptible to treatment in accordance with the present invention and recovery of hydrocarbons therefrom. Thus, the present invention is quite important and useful and also advantageous.
Ths nature and objects of the present invention having been completely described and illustrated, and the best mode and embodiment contemplated set forth, what we wish to claim as new and useful and secure by Letters Patent is:
1. A method of recovering viscous oil from a subsurface formation containing said viscous oil which comprises:
drilling a well bore at least into said subsurfaces formation;
drilling a plurality of wells to intersect said well bore in said subsurface formation;
said well bore and said plurality of wells communicating fluidly with said subsurface formation; injecting a heated fluid into said formation from said plurality of wells;
thereby causing said viscous oil to flow into and accumulate in said well bore; and
recovering said viscous oil from said well bore.
2. A method in accordance with claim 1 in which the heated fluid is steam.
3. A method in accordance with claim 1 .in which the heated fluid is hot water at a temperature sufiiciently above formation temperature to cause said viscous oil to flow.
4. A method in accordance with claim 1 in which the heated fluid is a gas.
5. A method in accordance with claim 1 in which the well bore is of a diameter substantially greater than the diameter of each of said plurality of wells and said well bore extends below the point where said Wells intersect the well bore.
6. A method in accordance with claim 1 in which heated fluid is injected selectively from said plurality of wells at a point adjacent the top of said subsurface formation.
7. A method in accordance with claim 1 in which said viscous oil is recovered from said well bore by pumping.
8. A method in accordance with claim 1 in which the plurality of wells is directionally drilled from horizontally spaced-apart points on the earths surface from said well 5 bore through said subsurface formation to expose a large area of each of said plurality of wells to said subsurface formation.
9. A method in accordance with claim 1 in which the heated fluid is injected into said subsurface formation from selected points in said plurality of wells.
10. A system for recovery of viscous oil from a subsurface earth formation containing viscous oil which comprises:
a well bore penetrating said subsurface formation having openings into said subsurface formation;
a plurality of wells intersecting said well bore in said subsurface formation extending laterally through and having openings into said subsurface formation;
means in said wells for injecting a heated fluid from said wells at least at a selected point into said subsurface formation; and
means adjacent the bottom of said well bore for recovering viscous oil which flow into and accumulate in said well bore.
References Cited UNITED STATES PATENTS Pevere et a1 166-11 Hennig 166-11 Tek et al 166-11 Woodruff 16611 X Rogers et al. 166-11 Cryer 16652 Hamilton et al 16611 X Thompson et al. 166-41 Dougan 16611 STEPHEN I. NOVOSAD, Primary Examiner.
|Patente citada||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US2788956 *||3 Ago 1955||16 Abr 1957||Texas Co||Generation of carbon monoxide and hydrogen by underground gasification of coal|
|US2906337 *||16 Ago 1957||29 Sep 1959||Pure Oil Co||Method of recovering bitumen|
|US2946382 *||19 Sep 1956||26 Jul 1960||Phillips Petroleum Co||Process for recovering hydrocarbons from underground formations|
|US2970826 *||21 Nov 1958||7 Feb 1961||Texaco Inc||Recovery of oil from oil shale|
|US3024013 *||24 Abr 1958||6 Mar 1962||Phillips Petroleum Co||Recovery of hydrocarbons by in situ combustion|
|US3212579 *||2 Sep 1959||19 Oct 1965||Del Cryer||Apparatus for automatic gas lift operation of oil wells|
|US3233668 *||15 Nov 1963||8 Feb 1966||Exxon Production Research Co||Recovery of shale oil|
|US3233670 *||18 Jul 1960||8 Feb 1966||Exxon Production Research Co||Additional recovery of hydrocarbons from a petroliferous formation|
|US3241611 *||10 Abr 1963||22 Mar 1966||Equity Oil Company||Recovery of petroleum products from oil shale|
|Patente citante||Fecha de presentación||Fecha de publicación||Solicitante||Título|
|US3815678 *||7 Sep 1971||11 Jun 1974||Allied Chem||Hydrocarbon sweep process|
|US3833059 *||12 Feb 1973||3 Sep 1974||Motco Inc||Hot gas apparatus for recovery of oil values|
|US3888307 *||29 Ago 1974||10 Jun 1975||Shell Oil Co||Heating through fractures to expand a shale oil pyrolyzing cavern|
|US3892270 *||6 Jun 1974||1 Jul 1975||Chevron Res||Production of hydrocarbons from underground formations|
|US3954139 *||30 Sep 1971||4 May 1976||Texaco Inc.||Secondary recovery by miscible vertical drive|
|US3986557 *||6 Jun 1975||19 Oct 1976||Atlantic Richfield Company||Production of bitumen from tar sands|
|US3994340 *||30 Oct 1975||30 Nov 1976||Chevron Research Company||Method of recovering viscous petroleum from tar sand|
|US3994341 *||30 Oct 1975||30 Nov 1976||Chevron Research Company||Recovering viscous petroleum from thick tar sand|
|US4007788 *||6 Jun 1975||15 Feb 1977||Atlantic Richfield Company||Recovery of bitumen from tar sands|
|US4022277 *||19 May 1975||10 May 1977||The Dow Chemical Company||In situ solvent fractionation of bitumens contained in tar sands|
|US4037658 *||30 Oct 1975||26 Jul 1977||Chevron Research Company||Method of recovering viscous petroleum from an underground formation|
|US4040483 *||9 Ene 1976||9 Ago 1977||Shell Oil Company||Recovery of oil by circulating hot fluid through a gas-filled portion of a network interconnected fractures|
|US4044830 *||2 Jul 1973||30 Ago 1977||Huisen Allen T Van||Multiple-completion geothermal energy production systems|
|US4067391 *||18 Jun 1976||10 Ene 1978||Dewell Robert R||In-situ extraction of asphaltic sands by counter-current hydrocarbon vapors|
|US4099570 *||28 Ene 1977||11 Jul 1978||Donald Bruce Vandergrift||Oil production processes and apparatus|
|US4099783 *||5 Dic 1975||11 Jul 1978||Vladimir Grigorievich Verty||Method for thermoshaft oil production|
|US4116275 *||14 Mar 1977||26 Sep 1978||Exxon Production Research Company||Recovery of hydrocarbons by in situ thermal extraction|
|US4160481 *||7 Feb 1977||10 Jul 1979||The Hop Corporation||Method for recovering subsurface earth substances|
|US4248302 *||26 Abr 1979||3 Feb 1981||Otis Engineering Corporation||Method and apparatus for recovering viscous petroleum from tar sand|
|US4368781 *||20 Oct 1980||18 Ene 1983||Chevron Research Company||Method of recovering viscous petroleum employing heated subsurface perforated casing containing a movable diverter|
|US4410216 *||27 May 1981||18 Oct 1983||Heavy Oil Process, Inc.||Method for recovering high viscosity oils|
|US4456065 *||20 Ago 1981||26 Jun 1984||Elektra Energie A.G.||Heavy oil recovering|
|US4621691 *||8 Jul 1985||11 Nov 1986||Atlantic Richfield Company||Well drilling|
|US4646836 *||20 Dic 1984||3 Mar 1987||Hydril Company||Tertiary recovery method using inverted deviated holes|
|US4700781 *||9 Dic 1985||20 Oct 1987||Mcfarlane Reuben C||Heavy crude oil production tool and method|
|US4753485 *||18 Jul 1986||28 Jun 1988||Hydril Company||Solution mining|
|US4765406 *||16 Abr 1987||23 Ago 1988||Kernforschungsanlage Julich Gesellschaft Mit Beschrankter Haftung||Method of and apparatus for increasing the mobility of crude oil in an oil deposit|
|US4842448 *||12 Nov 1987||27 Jun 1989||Drexel University||Method of removing contaminants from contaminated soil in situ|
|US4878539 *||2 Ago 1988||7 Nov 1989||Anders Energy Corporation||Method and system for maintaining and producing horizontal well bores|
|US4953635 *||27 Jul 1989||4 Sep 1990||Chevron Research Company||Method for improving the steam splits in a multiple steam injection process|
|US5000263 *||4 Jun 1990||19 Mar 1991||Chevron Research And Technology Company||Method for improving the steam splits in a multiple steam injection process using multiple steam headers|
|US5014787 *||16 Ago 1989||14 May 1991||Chevron Research Company||Single well injection and production system|
|US5016710 *||26 Jun 1987||21 May 1991||Institut Francais Du Petrole||Method of assisted production of an effluent to be produced contained in a geological formation|
|US5056597 *||7 Dic 1990||15 Oct 1991||Chevron Research And Technology Company||Method for improving the steam splits in a multiple steam injection process using multiple steam headers|
|US5074360 *||10 Jul 1990||24 Dic 1991||Guinn Jerry H||Method for repoducing hydrocarbons from low-pressure reservoirs|
|US5131471 *||21 Dic 1990||21 Jul 1992||Chevron Research And Technology Company||Single well injection and production system|
|US5215149 *||16 Dic 1991||1 Jun 1993||Mobil Oil Corporation||Single horizontal well conduction assisted steam drive process for removing viscous hydrocarbonaceous fluids|
|US5402851 *||3 May 1993||4 Abr 1995||Baiton; Nick||Horizontal drilling method for hydrocarbon recovery|
|US5450902 *||14 May 1993||19 Sep 1995||Matthews; Cameron M.||Method and apparatus for producing and drilling a well|
|US5655605 *||7 Jun 1995||12 Ago 1997||Matthews; Cameron M.||Method and apparatus for producing and drilling a well|
|US6250391 *||29 Ene 1999||26 Jun 2001||Glenn C. Proudfoot||Producing hydrocarbons from well with underground reservoir|
|US6263965||13 Abr 1999||24 Jul 2001||Tecmark International||Multiple drain method for recovering oil from tar sand|
|US6679326 *||15 Ene 2002||20 Ene 2004||Bohdan Zakiewicz||Pro-ecological mining system|
|US6932168||15 May 2003||23 Ago 2005||Cnx Gas Company, Llc||Method for making a well for removing fluid from a desired subterranean formation|
|US7040397||24 Abr 2002||9 May 2006||Shell Oil Company||Thermal processing of an oil shale formation to increase permeability of the formation|
|US7063145 *||24 Oct 2002||20 Jun 2006||Shell Oil Company||Methods and systems for heating a hydrocarbon containing formation in situ with an opening contacting the earth's surface at two locations|
|US7073577 *||29 Ago 2003||11 Jul 2006||Applied Geotech, Inc.||Array of wells with connected permeable zones for hydrocarbon recovery|
|US7077199 *||24 Oct 2002||18 Jul 2006||Shell Oil Company||In situ thermal processing of an oil reservoir formation|
|US7451814||12 Ene 2006||18 Nov 2008||Halliburton Energy Services, Inc.||System and method for producing fluids from a subterranean formation|
|US7484565 *||25 Oct 2006||3 Feb 2009||Halliburton Energy Services, Inc.||Methods and apparatus for injecting fluids at a subterranean location in a well|
|US7621326 *||13 Abr 2006||24 Nov 2009||Henry B Crichlow||Petroleum extraction from hydrocarbon formations|
|US7644765||19 Oct 2007||12 Ene 2010||Shell Oil Company||Heating tar sands formations while controlling pressure|
|US7644769||16 Oct 2007||12 Ene 2010||Osum Oil Sands Corp.||Method of collecting hydrocarbons using a barrier tunnel|
|US7661472 *||9 Dic 2008||16 Feb 2010||Halliburton Energy Services, Inc.||Methods and apparatus for injecting fluids at a subterranean location in a well|
|US7673681||19 Oct 2007||9 Mar 2010||Shell Oil Company||Treating tar sands formations with karsted zones|
|US7673786||20 Abr 2007||9 Mar 2010||Shell Oil Company||Welding shield for coupling heaters|
|US7677310||19 Oct 2007||16 Mar 2010||Shell Oil Company||Creating and maintaining a gas cap in tar sands formations|
|US7677314||19 Oct 2007||16 Mar 2010||Shell Oil Company||Method of condensing vaporized water in situ to treat tar sands formations|
|US7677673||5 Mar 2007||16 Mar 2010||Hw Advanced Technologies, Inc.||Stimulation and recovery of heavy hydrocarbon fluids|
|US7681647||19 Oct 2007||23 Mar 2010||Shell Oil Company||Method of producing drive fluid in situ in tar sands formations|
|US7683296||20 Abr 2007||23 Mar 2010||Shell Oil Company||Adjusting alloy compositions for selected properties in temperature limited heaters|
|US7703513||19 Oct 2007||27 Abr 2010||Shell Oil Company||Wax barrier for use with in situ processes for treating formations|
|US7717171||19 Oct 2007||18 May 2010||Shell Oil Company||Moving hydrocarbons through portions of tar sands formations with a fluid|
|US7730945||19 Oct 2007||8 Jun 2010||Shell Oil Company||Using geothermal energy to heat a portion of a formation for an in situ heat treatment process|
|US7730946||19 Oct 2007||8 Jun 2010||Shell Oil Company||Treating tar sands formations with dolomite|
|US7730947||19 Oct 2007||8 Jun 2010||Shell Oil Company||Creating fluid injectivity in tar sands formations|
|US7735935||1 Jun 2007||15 Jun 2010||Shell Oil Company||In situ thermal processing of an oil shale formation containing carbonate minerals|
|US7775271||11 Jul 2008||17 Ago 2010||Baker Hughes Incorporated||Device and system for well completion and control and method for completing and controlling a well|
|US7775277||24 Jun 2008||17 Ago 2010||Baker Hughes Incorporated||Device and system for well completion and control and method for completing and controlling a well|
|US7784543||11 Jul 2008||31 Ago 2010||Baker Hughes Incorporated||Device and system for well completion and control and method for completing and controlling a well|
|US7785427||20 Abr 2007||31 Ago 2010||Shell Oil Company||High strength alloys|
|US7789139||23 Jun 2008||7 Sep 2010||Baker Hughes Incorporated||Device and system for well completion and control and method for completing and controlling a well|
|US7789151||18 Jun 2008||7 Sep 2010||Baker Hughes Incorporated||Plug protection system and method|
|US7789152||15 Ago 2008||7 Sep 2010||Baker Hughes Incorporated||Plug protection system and method|
|US7793714||23 Jun 2008||14 Sep 2010||Baker Hughes Incorporated||Device and system for well completion and control and method for completing and controlling a well|
|US7793722||20 Abr 2007||14 Sep 2010||Shell Oil Company||Non-ferromagnetic overburden casing|
|US7798220||18 Abr 2008||21 Sep 2010||Shell Oil Company||In situ heat treatment of a tar sands formation after drive process treatment|
|US7798221||31 May 2007||21 Sep 2010||Shell Oil Company||In situ recovery from a hydrocarbon containing formation|
|US7814974 *||17 Jun 2008||19 Oct 2010||Baker Hughes Incorporated||Systems, methods and apparatuses for monitoring and recovery of petroleum from earth formations|
|US7819187||23 Oct 2008||26 Oct 2010||Halliburton Energy Services, Inc.||System and method for producing fluids from a subterranean formation|
|US7819190||17 Jun 2008||26 Oct 2010||Baker Hughes Incorporated||Systems, methods and apparatuses for monitoring and recovery of petroleum from earth formations|
|US7831134||21 Abr 2006||9 Nov 2010||Shell Oil Company||Grouped exposed metal heaters|
|US7832484||18 Abr 2008||16 Nov 2010||Shell Oil Company||Molten salt as a heat transfer fluid for heating a subsurface formation|
|US7841401||19 Oct 2007||30 Nov 2010||Shell Oil Company||Gas injection to inhibit migration during an in situ heat treatment process|
|US7841408||18 Abr 2008||30 Nov 2010||Shell Oil Company||In situ heat treatment from multiple layers of a tar sands formation|
|US7841425||18 Abr 2008||30 Nov 2010||Shell Oil Company||Drilling subsurface wellbores with cutting structures|
|US7845411||19 Oct 2007||7 Dic 2010||Shell Oil Company||In situ heat treatment process utilizing a closed loop heating system|
|US7849922||18 Abr 2008||14 Dic 2010||Shell Oil Company||In situ recovery from residually heated sections in a hydrocarbon containing formation|
|US7860377||21 Abr 2006||28 Dic 2010||Shell Oil Company||Subsurface connection methods for subsurface heaters|
|US7866385||20 Abr 2007||11 Ene 2011||Shell Oil Company||Power systems utilizing the heat of produced formation fluid|
|US7866386||13 Oct 2008||11 Ene 2011||Shell Oil Company||In situ oxidation of subsurface formations|
|US7866388||13 Oct 2008||11 Ene 2011||Shell Oil Company||High temperature methods for forming oxidizer fuel|
|US7878270||12 Mar 2010||1 Feb 2011||Halliburton Energy Services, Inc.||Methods and apparatus for drilling, completing and configuring U-tube boreholes|
|US7912358||20 Abr 2007||22 Mar 2011||Shell Oil Company||Alternate energy source usage for in situ heat treatment processes|
|US7913755||11 Jul 2008||29 Mar 2011||Baker Hughes Incorporated||Device and system for well completion and control and method for completing and controlling a well|
|US7931081||17 Jun 2008||26 Abr 2011||Baker Hughes Incorporated||Systems, methods and apparatuses for monitoring and recovery of petroleum from earth formations|
|US7931086||18 Abr 2008||26 Abr 2011||Shell Oil Company||Heating systems for heating subsurface formations|
|US7934563 *||30 Ene 2009||3 May 2011||Regency Technologies Llc||Inverted drainholes and the method for producing from inverted drainholes|
|US7942197||21 Abr 2006||17 May 2011||Shell Oil Company||Methods and systems for producing fluid from an in situ conversion process|
|US7942203||4 Ene 2010||17 May 2011||Shell Oil Company||Thermal processes for subsurface formations|
|US7950453||18 Abr 2008||31 May 2011||Shell Oil Company||Downhole burner systems and methods for heating subsurface formations|
|US8056627||2 Jun 2009||15 Nov 2011||Baker Hughes Incorporated||Permeability flow balancing within integral screen joints and method|
|US8069919||11 Nov 2010||6 Dic 2011||Baker Hughes Incorporated||Systems, methods and apparatuses for monitoring and recovery of petroleum from earth formations|
|US8113292||15 Dic 2008||14 Feb 2012||Baker Hughes Incorporated||Strokable liner hanger and method|
|US8127865||19 Abr 2007||6 Mar 2012||Osum Oil Sands Corp.||Method of drilling from a shaft for underground recovery of hydrocarbons|
|US8132624||2 Jun 2009||13 Mar 2012||Baker Hughes Incorporated||Permeability flow balancing within integral screen joints and method|
|US8146685||10 Ene 2011||3 Abr 2012||Halliburton Energy Services, Inc.||Methods and apparatus for drilling, completing and configuring U-tube boreholes|
|US8151875||15 Nov 2010||10 Abr 2012||Baker Hughes Incorporated||Device and system for well completion and control and method for completing and controlling a well|
|US8151881||2 Jun 2009||10 Abr 2012||Baker Hughes Incorporated||Permeability flow balancing within integral screen joints|
|US8159226||17 Jun 2008||17 Abr 2012||Baker Hughes Incorporated||Systems, methods and apparatuses for monitoring and recovery of petroleum from earth formations|
|US8167960||21 Oct 2008||1 May 2012||Osum Oil Sands Corp.||Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil|
|US8171999||10 Jun 2008||8 May 2012||Baker Huges Incorporated||Downhole flow control device and method|
|US8176982||6 Feb 2009||15 May 2012||Osum Oil Sands Corp.||Method of controlling a recovery and upgrading operation in a reservoir|
|US8200072||24 Oct 2003||12 Jun 2012||Shell Oil Company||Temperature limited heaters for heating subsurface formations or wellbores|
|US8209192||20 May 2009||26 Jun 2012||Osum Oil Sands Corp.||Method of managing carbon reduction for hydrocarbon producers|
|US8220539||9 Oct 2009||17 Jul 2012||Shell Oil Company||Controlling hydrogen pressure in self-regulating nuclear reactors used to treat a subsurface formation|
|US8256512||9 Oct 2009||4 Sep 2012||Shell Oil Company||Movable heaters for treating subsurface hydrocarbon containing formations|
|US8261832||9 Oct 2009||11 Sep 2012||Shell Oil Company||Heating subsurface formations with fluids|
|US8267170||9 Oct 2009||18 Sep 2012||Shell Oil Company||Offset barrier wells in subsurface formations|
|US8267185||9 Oct 2009||18 Sep 2012||Shell Oil Company||Circulated heated transfer fluid systems used to treat a subsurface formation|
|US8272447||15 Dic 2011||25 Sep 2012||Halliburton Energy Services, Inc.||Methods and apparatus for drilling, completing and configuring U-tube boreholes|
|US8281861||9 Oct 2009||9 Oct 2012||Shell Oil Company||Circulated heated transfer fluid heating of subsurface hydrocarbon formations|
|US8287050||17 Jul 2006||16 Oct 2012||Osum Oil Sands Corp.||Method of increasing reservoir permeability|
|US8313152||21 Nov 2007||20 Nov 2012||Osum Oil Sands Corp.||Recovery of bitumen by hydraulic excavation|
|US8327932||9 Abr 2010||11 Dic 2012||Shell Oil Company||Recovering energy from a subsurface formation|
|US8353347||9 Oct 2009||15 Ene 2013||Shell Oil Company||Deployment of insulated conductors for treating subsurface formations|
|US8434555||9 Abr 2010||7 May 2013||Shell Oil Company||Irregular pattern treatment of a subsurface formation|
|US8448707||28 May 2013||Shell Oil Company||Non-conducting heater casings|
|US8555958||19 Jun 2008||15 Oct 2013||Baker Hughes Incorporated||Pipeless steam assisted gravity drainage system and method|
|US8776881||17 Jun 2008||15 Jul 2014||Baker Hughes Incorporated||Systems, methods and apparatuses for monitoring and recovery of petroleum from earth formations|
|US8851170||9 Abr 2010||7 Oct 2014||Shell Oil Company||Heater assisted fluid treatment of a subsurface formation|
|US8881806||9 Oct 2009||11 Nov 2014||Shell Oil Company||Systems and methods for treating a subsurface formation with electrical conductors|
|US9010419||14 Sep 2007||21 Abr 2015||C-Fer Technologies (1999) Inc.||Subterranean system and method for treating and producing oil|
|US9022118||9 Oct 2009||5 May 2015||Shell Oil Company||Double insulated heaters for treating subsurface formations|
|US9051829||9 Oct 2009||9 Jun 2015||Shell Oil Company||Perforated electrical conductors for treating subsurface formations|
|US9085953||10 Abr 2012||21 Jul 2015||Baker Hughes Incorporated||Downhole flow control device and method|
|US20020056551 *||24 Abr 2001||16 May 2002||Wellington Scott Lee||In situ thermal processing of a hydrocarbon containing formation in a reducing environment|
|US20020057905 *||24 Abr 2001||16 May 2002||Wellington Scott Lee||In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids|
|US20020077515 *||24 Abr 2001||20 Jun 2002||Wellington Scott Lee||In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number range|
|US20040226719 *||15 May 2003||18 Nov 2004||Claude Morgan||Method for making a well for removing fluid from a desired subterranean formation|
|US20050045325 *||29 Ago 2003||3 Mar 2005||Applied Geotech, Inc.||Array of wells with connected permeable zones for hydrocarbon recovery|
|US20050051326 *||29 Sep 2004||10 Mar 2005||Toothman Richard L.||Method for making wells for removing fluid from a desired subterranean|
|US20050051327 *||23 Abr 2004||10 Mar 2005||Vinegar Harold J.||Thermal processes for subsurface formations|
|USRE30019 *||30 Jun 1977||5 Jun 1979||Chevron Research Company||Production of hydrocarbons from underground formations|
|CN102213089A *||2 Jun 2011||12 Oct 2011||中国石油天然气股份有限公司||Method and system for extracting oil from shallow heavy oil reservoir|
|DE2649487A1 *||27 Oct 1976||5 May 1977||Chevron Res||Gewinnung von zaehfluessigem petroleum aus dichten teersanden|
|DE2649488A1 *||27 Oct 1976||5 May 1977||Chevron Res||Verfahren zur gewinnung von zaehfluessigem petroleum aus unterirdischen lagerstaetten|
|EP0002306A1 *||2 Dic 1978||13 Jun 1979||Stamicarbon B.V.||Process for transformation of coal in situ, particularly gazification|
|EP0251881A1 *||22 Jun 1987||7 Ene 1988||Institut Francais Du Petrole||Enhanced recovery method to continually produce a fluid contained in a geological formation|
|EP0982470A2 *||19 Ago 1999||1 Mar 2000||FlowWaste GmbH||Method for building a well|
|EP1815101A1 *||17 Nov 2005||8 Ago 2007||Halliburton Energy Services, Inc.||Methods and apparatus for drilling, completing and configuring u-tube boreholes|
|WO1999067503A1 *||11 Jun 1999||29 Dic 1999||Alberta Energy Co Ltd||Convective heating startup for heavy oil recovery|
|WO2006053434A1||17 Nov 2005||26 May 2006||Halliburton Energy Serv Inc||Methods and apparatus for drilling, completing and configuring u-tube boreholes|
|Clasificación de EE.UU.||166/272.3, 166/52|
|Clasificación internacional||E21B43/00, E21B43/30, E21B43/16, E21B43/24|
|Clasificación cooperativa||E21B43/305, E21B43/24|
|Clasificación europea||E21B43/30B, E21B43/24|