CA2280713A1 - Aphron-containing well drilling and servicing fluids - Google Patents
Aphron-containing well drilling and servicing fluids Download PDFInfo
- Publication number
- CA2280713A1 CA2280713A1 CA002280713A CA2280713A CA2280713A1 CA 2280713 A1 CA2280713 A1 CA 2280713A1 CA 002280713 A CA002280713 A CA 002280713A CA 2280713 A CA2280713 A CA 2280713A CA 2280713 A1 CA2280713 A1 CA 2280713A1
- Authority
- CA
- Canada
- Prior art keywords
- fluid
- drilling
- aphron
- well drilling
- subterranean formation
- 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
Links
- 239000012530 fluid Substances 0.000 title abstract 8
- 238000005553 drilling Methods 0.000 title abstract 5
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- 230000009974 thixotropic effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
- C09K8/20—Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
- C09K8/206—Derivatives of other natural products, e.g. cellulose, starch, sugars
-
- 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
- C09K8/56—Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof
- C09K8/57—Compositions based on water or polar solvents
- C09K8/575—Compositions based on water or polar solvents containing organic compounds
- C09K8/5751—Macromolecular compounds
- C09K8/5758—Macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
Abstract
The invention provides a method and fluid for drilling or servicing a well in a subterranean formation containing lost circulation zones or depleted, low pressure reservoirs. The fluid comprises an aqueous liquid having dispersed therein a polymer which increases the low shear rate viscosity of the fluid to the extent that the thixotropic index of the fluid is at least about 10 and a surfactant, and wherein the fluid contains less than about 15 % by volume of aphrons preferably generated by the turbulence and pressure drop as the fluid exits the drill bit in the vicinity of the formation. The method of drilling a wellbore in a subterranean formation comprises continuously circulating, while drilling, such a drilling fluid.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/800,727 US5881826A (en) | 1997-02-13 | 1997-02-13 | Aphron-containing well drilling and servicing fluids |
US08/800,727 | 1997-02-13 | ||
PCT/US1998/002566 WO1998036151A1 (en) | 1997-02-13 | 1998-02-10 | Aphron-containing well drilling and servicing fluids |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2280713A1 true CA2280713A1 (en) | 1998-08-20 |
CA2280713C CA2280713C (en) | 2005-08-09 |
Family
ID=25179204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002280713A Expired - Fee Related CA2280713C (en) | 1997-02-13 | 1998-02-10 | Aphron-containing well drilling and servicing fluids |
Country Status (7)
Country | Link |
---|---|
US (4) | US5881826A (en) |
EP (1) | EP0960259B1 (en) |
AP (1) | AP0102255A0 (en) |
CA (1) | CA2280713C (en) |
DE (1) | DE69827114D1 (en) |
NO (1) | NO317515B1 (en) |
WO (1) | WO1998036151A1 (en) |
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-
1997
- 1997-02-13 US US08/800,727 patent/US5881826A/en not_active Expired - Lifetime
-
1998
- 1998-02-10 DE DE69827114T patent/DE69827114D1/en not_active Expired - Lifetime
- 1998-02-10 AP APAP/P/2001/002255A patent/AP0102255A0/en unknown
- 1998-02-10 EP EP98906296A patent/EP0960259B1/en not_active Expired - Lifetime
- 1998-02-10 CA CA002280713A patent/CA2280713C/en not_active Expired - Fee Related
- 1998-02-10 WO PCT/US1998/002566 patent/WO1998036151A1/en active IP Right Grant
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1999
- 1999-02-09 US US09/246,932 patent/US6770601B1/en not_active Expired - Fee Related
- 1999-05-07 US US09/320,375 patent/US6390208B1/en not_active Expired - Lifetime
- 1999-08-13 NO NO19993925A patent/NO317515B1/en not_active IP Right Cessation
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2001
- 2001-05-15 US US09/855,932 patent/US6716797B2/en not_active Expired - Fee Related
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EP0960259A1 (en) | 1999-12-01 |
WO1998036151A1 (en) | 1998-08-20 |
CA2280713C (en) | 2005-08-09 |
US6716797B2 (en) | 2004-04-06 |
US20010027880A1 (en) | 2001-10-11 |
US6390208B1 (en) | 2002-05-21 |
EP0960259B1 (en) | 2004-10-20 |
US6770601B1 (en) | 2004-08-03 |
NO993925L (en) | 1999-10-13 |
DE69827114D1 (en) | 2004-11-25 |
US5881826A (en) | 1999-03-16 |
EP0960259A4 (en) | 2000-05-10 |
NO993925D0 (en) | 1999-08-13 |
AP0102255A0 (en) | 2001-06-27 |
NO317515B1 (en) | 2004-11-08 |
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