CA2397040A1 - Oil and gas production optimization using dynamic surface tension reducers - Google Patents

Oil and gas production optimization using dynamic surface tension reducers Download PDF

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Publication number
CA2397040A1
CA2397040A1 CA 2397040 CA2397040A CA2397040A1 CA 2397040 A1 CA2397040 A1 CA 2397040A1 CA 2397040 CA2397040 CA 2397040 CA 2397040 A CA2397040 A CA 2397040A CA 2397040 A1 CA2397040 A1 CA 2397040A1
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Canada
Prior art keywords
fluid
dstr
fabricated
oil
concentration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2397040
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French (fr)
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CA2397040C (en
Inventor
James Darrell Masikewich
Shaun Terrance Einar Mesher
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Newpark Canada Inc
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Newpark Canada Inc
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Filing date
Publication date
Priority claimed from CA002354906A external-priority patent/CA2354906A1/en
Application filed by Newpark Canada Inc filed Critical Newpark Canada Inc
Priority to CA002397040A priority Critical patent/CA2397040C/en
Publication of CA2397040A1 publication Critical patent/CA2397040A1/en
Application granted granted Critical
Publication of CA2397040C publication Critical patent/CA2397040C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/62—Compositions for forming crevices or fractures
    • C09K8/66—Compositions based on water or polar solvents
    • C09K8/68—Compositions based on water or polar solvents containing organic compounds
    • 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
    • C09K8/04—Aqueous well-drilling compositions
    • C09K8/14—Clay-containing compositions
    • C09K8/18—Clay-containing compositions characterised by the organic compounds
    • C09K8/22—Synthetic organic compounds
    • 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
    • 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
    • C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
    • 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
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open

Abstract

The addition of dynamic surface tension reducers to drilling fluids or work over and completion fluids results in improved fluid system performance and improved oil and gas production values.

Claims (36)

1. A fabricated fluid for use in the drilling, completion, work over or servicing of oil and gas wells or as used in the treatment or for the enhancement of production from oil and gas bearing formations, wherein said fabricated fluid includes therein a dynamic surface tension reducing (DSTR) surfactant present in a predetermined amount.
2. The fabricated fluid of claim 1 wherein said DSTR is ethoxylated non-ionic acetylenic glycol.
3. The fabricated fluid of claims 1 or 2 wherein said fabricated fluid is a drilling mud and said DSTR is present at a concentration of between 0.05% and 10% by weight.
4. The fabricated fluid of claim 3 wherein said DSTR is present at a concentration of between 0.05% and 0.5% by weight.
5. The fabricated fluid of claims 1, 2, 3 or 4 wherein said drilling mud is water based.
6. The fabricated fluid of claims 1, 2, 3, 4 or 5 wherein said drilling mud is oil based.
7. The fabricated fluid of claims 1 or 2 wherein said fabricated fluid is a fracturing fluid and said DSTR is present at a concentration of between 0.05 and 5% by weight.
8. The fabricated fluid of claims 1 or 2 wherein said fabricated fluid is a solvent or acid based fluid used for solvent squeezes or acid washes of hydrocarbon bearing formations and wherein said DSTR is present at a concentration of 1 to 5 litres per cubic metre of solvent or acid based fluid or between 0.1 % to 10% by weight.
9. The fabricated fluid of claims 1 or 2 wherein said fabricated fluid is a weighted mud used during the servicing of oil and gas wells and wherein said DSTR is present at a concentration of between 0.05% and 10% by weight.
10. The fabricated fluid of claim 9 wherein said DSTR is present at a concentration of between 0.05% and 0.5% by weight.
11. The fabricated fluid of claims 1 or 2 wherein said fabricated fluid is a fluid injected into an oil or gas bearing formation to force oil or gas remaining in said formation towards a well bore for production to the surface, wherein said DSTR
is present in said injected fluid at a concentration of between 0.05% to 10% by weight.
12. A fabricated fluid for use in the drilling, completion, work over or servicing of oil and gas wells or as used in the treatment or for the enhancement of production from oil and gas bearing formations, the improvement wherein a dynamic surface tension reducing (DSTR) surfactant is added to said fabricated fluid in a predetermined amount, said DSTR being ethyoxylated non-ionic acetylenic glycol present at a concentration of between 0.05% and 10% by weight.
13. Proppant particles for use in the fracturing of oil and gas bearing formations penetrated by a well bore, the improvement wherein dynamic surface tension reducing (DSTR) surfactant is linked to a surface of some or all of said proppant particles.
14. In a method for the separation of cuttings produced during the drilling of a well bore from fluids used to transport said cuttings from the bottom of said well bore to the surface, the improvement wherein said fluid is treated by the addition of a predetermined amount of dynamic surface tensioning reducing (DSTR) surfactant to reduce adhesion between said cuttings and said fluid to facilitate the separation therebetween.
15. In the method of claim 13, wherein said DSTR is present in said fluid at a concentration of between 0.05% and 10% by weight.
16. In the method of claim 15 wherein said DSTR is ethoxylated non-ionic acetylenic glycol.
17. A method of admixing a fabricated fluid, for use in the drilling, completion, work over or surfacing of an oil or gas well or as used in the treatment or for the enhancement of production from an oil or gas bearing formation, together with at least one chemical additive, comprising the steps of:
adding said at least one chemical additive to said fabricated fluid;
adding a predetermined amount of a dynamic surface tension reducing (DSTR) surfactant to said fabricated fluid; and admixing said fabricated fluid, said at least one chemical additive and said DSTR to prepare said fabricated fluid for use.
18. The method of claim 17 wherein said DSTR is ethoxylated non-ionic acetylenic glycol.
19. The method of claims 17 or 18 wherein said DSTR is added at a concentration of between 0.05% and 10% by weight.
20. The method of claim 19 wherein said DSTR is added at a concentration of between 0.05% and 0.5% by weight.
21. The method of claims 17, 18, 19 or 20 wherein said drilling fluid is a water or oil based drilling mud.
22. The method of claims 17, 18, 19 or 20 wherein said fabricated fluid is a fracturing fluid.
23. The method of claims 17, 18, 19 or 20 wherein said fabricated fluid is a solvent or acid based fluid used for solvent squeezes or acid washes of hydrocarbon bearing formations.
24. The method of claims 17, 18, 19 or 20 wherein said fabricated fluid is a weighted mud used during the servicing of oil and gas wells.
25. A method of fracturing an underground hydrocarbon bearing formation penetrated by a well bore, comprising the steps of:
injecting a stream of fluid into said formation at a pressure selected to cause the forming of at least one fracture in said formation;
introducing proppants into said stream of fluid for injection of said proppants into said at least one fracture; and combining at least some of said proppants with dynamic surface tension reducing (DSTR) surfactant prior to injecting said proppants into said formation, whereby said DSTR surfactant is available to reduce surface tension between said proppants and fluids in contact with said proppants in said fracture.
26. The method of claim 25 wherein said DSTR is ethoxylated non-ionic acetylenic glycol.
27. The method of claim 26 including the additional steps of dissolving said DSTR
in a solvent to produce a solution, contacting said solution with some or all of said proppants, and then evaporating said solvent to leave said DSTR combined with said some or all of said proppants.
28. The method of claim 27 wherein said DSTR is dissolved in said solvent at a concentration of between 1 to 10% by weight.
29. The method of claim 28 wherein said solvent is acetone.
30. A method of propping open a hydraulically fractured underground oil or gas bearing formation penetrated by a well bore, comprising the steps of:
introducing proppant particles into a stream of pressurized fracturing fluid, some or all of said proppant particles having dynamic surface tension reducing (DSTR) surfactant contacted to a surface thereof; and pumping the mixture of said fracturing fluid and said proppant particles down said well bore into said formation to deposit said proppant particles in said hydraulically fractured underground formation.
31. The method of claim 30 wherein said DSTR is ethoxylated non-ionic acetylenic glycol.
32. A method of drilling a bore hole into an oil or gas bearing formation using a rotatable drill bit provided at the end of a length of drill pipe and a drilling fluid circulated through the drill pipe and bit and in the annulus between the drill pipe and the bore hole, the improvement wherein said drilling fluid includes therein a dynamic surface tension reducing (DSTR) surfactant in a predetermined amount.
33. The method of claim 32 wherein said DSTR is ethoxylated non-ionic acetylenic glycol.
34. The method of claims 32 or 33 wherein said DSTR is present at a concentration of between 0.05% and 10% by weight.
35. The method of claims 32, 33 or 34 wherein said DSTR is present at a concentration of between 0.05% and 0.5% by weight.
36. The method of claims 32, 33, 34 or 35 wherein said drilling fluid is water or oil based.
CA002397040A 2001-08-08 2002-08-07 Oil and gas production optimization using dynamic surface tension reducers Expired - Lifetime CA2397040C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002397040A CA2397040C (en) 2001-08-08 2002-08-07 Oil and gas production optimization using dynamic surface tension reducers

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2,354,906 2001-08-08
CA002354906A CA2354906A1 (en) 2001-08-08 2001-08-08 Production optimization using dynamic surface tension reducers
CA002397040A CA2397040C (en) 2001-08-08 2002-08-07 Oil and gas production optimization using dynamic surface tension reducers

Publications (2)

Publication Number Publication Date
CA2397040A1 true CA2397040A1 (en) 2003-02-08
CA2397040C CA2397040C (en) 2009-12-15

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CA (1) CA2397040C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8898018B2 (en) 2007-03-06 2014-11-25 Schlumberger Technology Corporation Methods and systems for hydrocarbon production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8898018B2 (en) 2007-03-06 2014-11-25 Schlumberger Technology Corporation Methods and systems for hydrocarbon production

Also Published As

Publication number Publication date
CA2397040C (en) 2009-12-15

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