CA2630032A1 - Methods for recovering oil from an oil reservoir - Google Patents

Methods for recovering oil from an oil reservoir Download PDF

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Publication number
CA2630032A1
CA2630032A1 CA002630032A CA2630032A CA2630032A1 CA 2630032 A1 CA2630032 A1 CA 2630032A1 CA 002630032 A CA002630032 A CA 002630032A CA 2630032 A CA2630032 A CA 2630032A CA 2630032 A1 CA2630032 A1 CA 2630032A1
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Prior art keywords
surfactants
branched
unsaturated
saturated
carbon atoms
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CA002630032A
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French (fr)
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CA2630032C (en
Inventor
Manilal S. Dahanayake
Bruno Langlois
Paul-Joel Derian
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Rhodia Operations SAS
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Rhodia Inc.
Manilal S. Dahanayake
Bruno Langlois
Paul-Joel Derian
Rhodia Operations
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Priority to CA2776396A priority Critical patent/CA2776396C/en
Publication of CA2630032A1 publication Critical patent/CA2630032A1/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
    • C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
    • C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
    • 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
    • C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/30—Viscoelastic surfactants [VES]

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cosmetics (AREA)
  • Removal Of Floating Material (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Lubricants (AREA)
  • Colloid Chemistry (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

There is a method for enhancing the recovery of oil from a reservoir. The method has the step of a) introducing a flooding fluid into the reservoir and b) extracting the oil through a wellbore at a location different than the point of introduction of the flooding fluid into the reservoir. The flooding fluid has water and an amount of one or more non-polymeric viscoelastic surfactants sufficient to provide an interfacial surface tension of about 1 mNm or less and a viscosity of about 10 cps or more. The one or more surfactants is selected from the group of one or more cationic surfactants, one or more zwitterionic surfactants, one or more amphoteric surfactants, one or more anionic surfactants, and combinations thereof.

Claims (23)

1. A method for enhancing the recovery of oil from a reservoir, comprising:

a) introducing a flooding fluid into the reservoir, wherein the fluid has the following:

i) water and ii) an amount of one or more non-polymeric, viscoelastic surfactants sufficient to provide the flooding fluid with an oil/water interfacial surface tension of about 1 mNm or less and a viscosity of about 10 cPs or more of the one or more non-polymeric surfactants, wherein the one or more non-polymeric, viscoelastic surfactants is selected from the group of one or more cationic surfactants, one or more zwitterionic surfactants, one or more anionic surfactants, one or more amphoteric surfactants, and combinations thereof;

b) extracting the oil through a wellbore at a location different than the point of introduction of the flooding fluid into the reservoir.
2. The method of claim 1, wherein the flooding fluid has about 0.1 wt% to about 20 wt% of the one or more non-polymeric surfactants.
3. The method of claim 1, wherein the flooding fluid has about 0.5 wt% to about 10 wt% of the one or more non-polymeric surfactants.
4. The method of claim 1, wherein the flooding fluid has up to about 20 lbs/1000 gals water of organic and inorganic salts.
5. The method of claim 1, wherein the flooding fluid has an amount of the one or more surfactants sufficient to provide a flooding fluid having an interfacial surface tension of about 0.1 mNm or less.
6. The method of claim 1, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 is a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl, and wherein R1 has from about 16 to about 22 carbon atoms and may be branched or straight-chained and saturated or unsaturated; wherein R2 and R3 are, independently, i) an aliphatic group or ii) an aliphatic group with an aromatic or benzylic moiety bonded therewith;
wherein R2, R3, and R5 have from 1 to about 30 atoms; wherein the aliphatic group is branched or straight-chained and saturated or unsaturated; and wherein X is suitable counter-anion, such as Cl-, Br-, and CH3CH3SO4- .
7. The method of claim 1, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 is a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl, and wherein R1 has from about 16 to about 22 carbon atoms and may be branched or straight-chained and saturated or unsaturated; wherein R2 and R3 are, independently, i) an aliphatic group or ii) an aliphatic group with an aromatic or benzylic moiety bonded therewith;
8. The method of claim 1, wherein the one or more non-polymeric viscoelastic surfactants has any of the formulas (I) to (V):

(I) ROSO3-(II) R(OCHR'CHR')m OSO3-(III) RSO3-(IV) R(OCHR'CHR')m SO3-(V) RC6H4-SO3-wherein R represents an alkyl, alkenyl, arylalkyl, or hydroxyalkyl group; wherein R has about 16 to about 24 carbon atoms; wherein R is saturated or unsaturated, branched or straight chained; wherein branched alkyl groups have from 1 to about 6 carbon atoms; and wherein m is from 0 to about 10.
9. The method of claim 1, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 represents a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl; wherein alkyl represents a group that contains from about 16 to about 24 carbon atoms that is branched or straight chained and saturated or unsaturated;
wherein R2 and R3 are, independently, an aliphatic chain having from 1 to about 30 carbon atoms in which the aliphatic group is branched or straight chained and saturated or unsaturated; and wherein R4 is a hydrocarbyl radical (e.g. alkylene) with chain length 1 to 4.
10. The method of claim 1, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 represents a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl; wherein alkyl represents a group that contains from about 16 to about 24 carbon atoms that is branched or straight chained and saturated or unsaturated;
wherein R2 and R3 are, independently, an aliphatic chain having from 1 to about 12 carbon atoms in which the aliphatic group is branched or straight chained and saturated or unsaturated.
11. The method of claim 1, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 represents a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl; wherein alkyl represents a group that contains from about 16 to about 24 carbon atoms that is branched or straight chained and saturated or unsaturated;
wherein R2 is an aliphatic chain having from 1 to about 30 carbon atoms in which the aliphatic group is branched or straight chained and saturated or unsaturated; and wherein R4 is a hydrocarbyl radical with chain length 1 to 4.
12. A method for enhancing recovery of oil from a reservoir, comprising the following steps:

a) introducing an fracturing fluid through a wellbore into the reservoir at a pressure sufficient to induce fracturing in the reservoir, the fracturing fluid having water;

b) introducing a flooding fluid into the reservoir at a location different than that of the wellbore, the flooding fluid having i) water and ii) an amount of one or more non-polymeric, viscoelastic surfactants sufficient to provide a flooding fluid with an O/W interfacial surface tension of about 1 mNm or less and a viscosity of 10 cps, wherein in the one or more surfactants is selected from the group of one or more cationic surfactants, one or more zwitterionic surfactants, one or more amphoteric surfactants, one or more anionic surfactants, and combinations thereof; and c) extracting the oil through the wellbore.
13. The method of claim 12, wherein the flooding fluid has about 0.1 wt% to about 20 wt% of the one or more of the non-polymeric, viscoelastic surfactants.
14. The method of claim 12, wherein the flooding fluid has about 0.5 wt% to about 10 wt% of the one or more of the non-polymeric, viscoelastic surfactants.
15. The method of claim 12, wherein the flooding fluid, has an amount of the one or more surfactants sufficient to provide a fluid having an interfacial surface tension of about 0.1 mNm or less.
16. The method of claim 12, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 is a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl, and wherein R1 has from about 16 to about 22 carbon atoms and may be branched or straight-chained and saturated or unsaturated; wherein R2 and R3 are, independently, i) an aliphatic group or ii) an aliphatic group with an aromatic or benzylic moiety bonded therewith;
wherein R2, R3, and R5 have from 1 to about 30 atoms; wherein the aliphatic group is branched or straight-chained and saturated or unsaturated; and wherein X is suitable counter-anion, such as C1-, Br-, and CH3CH3SO4-.
17. The method of claim 12, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 is a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl, and wherein R1 has from about 16 to about 22 carbon atoms and may be branched or straight-chained and saturated or unsaturated; wherein R2 and R3 are, independently, i) an aliphatic group or ii) an aliphatic group with an aromatic or benzylic moiety bonded therewith;
and wherein X is suitable counter-anion, such as Cl-, Br-, and CH3CH3SO4-.
18. The method of claim 12, wherein the one or more non-polymeric viscoelastic surfactants has any of the formulas (I) to (V):

(I) ROSO3-(II) R(OCHR'CHR')m OSO3-(III) RSO3-(IV) R(OCHR'CHR')m SO3-(V) RC6H4-SO3-wherein R represents an alkyl, alkenyl, arylalkyl, or hydroxyalkylgroup; wherein R has about 16 to about 24 carbon atoms; wherein R is saturated or unsaturated, branched or straight chained; wherein branched alkyl groups have from 1 to about 6 carbon atoms; and wherein m is from 0 to about 10.
19. The method of claim 12, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 represents a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl; wherein alkyl represents a group that contains from about 12 to about 24 carbon atoms that is branched or straight chained and saturated or unsaturated;
wherein R2 and R3 are, independently, an aliphatic chain having from 1 to about 30 carbon atoms in which the aliphatic group is branched or straight chained and saturated or unsaturated; and wherein R4 is a hydrocarbyl radical (e.g. alkylene) with chain length 1 to 4.
20. The method of claim 12, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 represents a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl; wherein alkyl represents a group that contains from about 12 to about 24 carbon atoms that is branched or straight chained and saturated or unsaturated;
wherein R2 and R3 are, independently, an aliphatic chain having from 1 to about 30 carbon atoms in which the aliphatic group is branched or straight chained and saturated or unsaturated.
21. The method of claim 12, wherein the one or more non-polymeric viscoelastic surfactants has the formula wherein R1 represents a hydrophobic moiety of alkyl, alkylarylalkyl, alkoxyalkyl, alkylaminoalkyl or alkylamidoalkyl; wherein alkyl represents a group that contains from about 16 to about 24 carbon atoms that is branched or straight chained and saturated or unsaturated;
wherein R2 is an aliphatic chain having from 1 to about 30 carbon atoms in which the aliphatic group is branched or straight chained and saturated or unsaturated; and wherein R4 is a hydrocarbyl radical with chain length 1 to 4.
22. The method of claim 1, further comprising contacting a gas with the viscoelastic surfactant fluid.
23. The method of claim 22, wherein the gas is selected from the group consisting of nitrogen, carbon dioxide, and combinations thereof.
CA2630032A 2005-11-16 2006-11-06 Methods for recovering oil from an oil reservoir Active CA2630032C (en)

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US11/280,896 US7461694B2 (en) 2005-11-16 2005-11-16 Methods for recovering oil from an oil reservoir
US11/280,896 2005-11-16
PCT/US2006/043211 WO2007058813A2 (en) 2005-11-16 2006-11-06 Methods for recovering oil from an oil reservoir

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EP (1) EP1954913A4 (en)
CN (1) CN101310093B (en)
BR (1) BRPI0618718B1 (en)
CA (2) CA2776396C (en)
MX (1) MX364137B (en)
MY (1) MY148356A (en)
NO (1) NO20082111L (en)
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WO (1) WO2007058813A2 (en)

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US7784540B2 (en) 2010-08-31
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RU2008123817A (en) 2009-12-27
RU2452851C2 (en) 2012-06-10
US7770642B2 (en) 2010-08-10
US20070107897A1 (en) 2007-05-17
US20090065204A1 (en) 2009-03-12
US7461694B2 (en) 2008-12-09
US7779913B2 (en) 2010-08-24
US20090056942A1 (en) 2009-03-05
CN101310093A (en) 2008-11-19
EP1954913A4 (en) 2011-04-20
NO20082111L (en) 2008-06-04
CA2776396A1 (en) 2007-05-24
WO2007058813A3 (en) 2008-03-06
CA2630032C (en) 2012-07-10
US20090065205A1 (en) 2009-03-12
US20090056943A1 (en) 2009-03-05
MY148356A (en) 2013-03-29
US7789144B2 (en) 2010-09-07
US20090065203A1 (en) 2009-03-12
WO2007058813A2 (en) 2007-05-24
US7789143B2 (en) 2010-09-07
BRPI0618718B1 (en) 2022-05-17
BRPI0618718A2 (en) 2011-09-06
MX364137B (en) 2019-04-12

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