CA2315024A1 - Apparatus and method for injecting treatment fluids into an underground formation - Google Patents
Apparatus and method for injecting treatment fluids into an underground formation Download PDFInfo
- Publication number
- CA2315024A1 CA2315024A1 CA002315024A CA2315024A CA2315024A1 CA 2315024 A1 CA2315024 A1 CA 2315024A1 CA 002315024 A CA002315024 A CA 002315024A CA 2315024 A CA2315024 A CA 2315024A CA 2315024 A1 CA2315024 A1 CA 2315024A1
- Authority
- CA
- Canada
- Prior art keywords
- tool
- formation
- treatment fluids
- wellbore
- fluids
- 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
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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
- E21B17/203—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables with plural fluid passages
-
- 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
- C09K8/72—Eroding chemicals, e.g. acids
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/124—Units with longitudinally-spaced plugs for isolating the intermediate space
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/02—Subsoil filtering
- E21B43/025—Consolidation of loose sand or the like round the wells without excessively decreasing the permeability thereof
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
Abstract
A tool and method are disclosed for injecting various treatment fluids into a formation surrounding an underground borehole. The tool (1) comprises at least three axially spaced swab assemblies (7, 8, 9) which define at least two annular spaces (10, 11) between the tool body (5) and the wellbore (12). In use the tool (1) is moved through the wellbore (12) whilst a first treatment fluid (18) such as a sand consolidation agent or production stimulation chemical is pumped via a first annular space (10) into the formation (16) and a second treatment fluid (19), such as an overflush fluid, is pumped via a second annular space (11) into the formation (16). The tool (1) allows accurate and continuous injection of various treatment fluids over long intervals into the formation (16) without requiring cycling to new fluids.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97310613.1 | 1997-12-24 | ||
EP97310613A EP0926310A1 (en) | 1997-12-24 | 1997-12-24 | Apparatus and method for injecting treatment fluids into an underground formation |
PCT/EP1998/008548 WO1999034092A1 (en) | 1997-12-24 | 1998-12-23 | Apparatus and method for injecting treatment fluids into an underground formation |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2315024A1 true CA2315024A1 (en) | 1999-07-08 |
CA2315024C CA2315024C (en) | 2006-02-07 |
Family
ID=8229686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002315024A Expired - Lifetime CA2315024C (en) | 1997-12-24 | 1998-12-23 | Apparatus and method for injecting treatment fluids into an underground formation |
Country Status (10)
Country | Link |
---|---|
US (1) | US6260622B1 (en) |
EP (2) | EP0926310A1 (en) |
AU (1) | AU739175B2 (en) |
CA (1) | CA2315024C (en) |
DE (1) | DE69804017T2 (en) |
GC (1) | GC0000013A (en) |
NO (1) | NO320304B1 (en) |
OA (1) | OA11436A (en) |
RU (1) | RU2209296C2 (en) |
WO (1) | WO1999034092A1 (en) |
Families Citing this family (64)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1274921A1 (en) * | 2000-04-18 | 2003-01-15 | Alberta Research Council, Inc. | Method and apparatus for injecting one or more fluids into a borehole |
CA2306016C (en) | 2000-04-18 | 2004-11-23 | Ernest H. Perkins | Method and apparatus for injecting one or more fluids into a borehole |
US7080688B2 (en) * | 2003-08-14 | 2006-07-25 | Halliburton Energy Services, Inc. | Compositions and methods for degrading filter cake |
US7168489B2 (en) * | 2001-06-11 | 2007-01-30 | Halliburton Energy Services, Inc. | Orthoester compositions and methods for reducing the viscosified treatment fluids |
US7140438B2 (en) * | 2003-08-14 | 2006-11-28 | Halliburton Energy Services, Inc. | Orthoester compositions and methods of use in subterranean applications |
US7276466B2 (en) * | 2001-06-11 | 2007-10-02 | Halliburton Energy Services, Inc. | Compositions and methods for reducing the viscosity of a fluid |
US6691780B2 (en) | 2002-04-18 | 2004-02-17 | Halliburton Energy Services, Inc. | Tracking of particulate flowback in subterranean wells |
US7228904B2 (en) * | 2003-06-27 | 2007-06-12 | Halliburton Energy Services, Inc. | Compositions and methods for improving fracture conductivity in a subterranean well |
US7044220B2 (en) | 2003-06-27 | 2006-05-16 | Halliburton Energy Services, Inc. | Compositions and methods for improving proppant pack permeability and fracture conductivity in a subterranean well |
US7044224B2 (en) * | 2003-06-27 | 2006-05-16 | Halliburton Energy Services, Inc. | Permeable cement and methods of fracturing utilizing permeable cement in subterranean well bores |
US7036587B2 (en) * | 2003-06-27 | 2006-05-02 | Halliburton Energy Services, Inc. | Methods of diverting treating fluids in subterranean zones and degradable diverting materials |
US7032663B2 (en) * | 2003-06-27 | 2006-04-25 | Halliburton Energy Services, Inc. | Permeable cement and sand control methods utilizing permeable cement in subterranean well bores |
US6981560B2 (en) * | 2003-07-03 | 2006-01-03 | Halliburton Energy Services, Inc. | Method and apparatus for treating a productive zone while drilling |
US20050028976A1 (en) * | 2003-08-05 | 2005-02-10 | Nguyen Philip D. | Compositions and methods for controlling the release of chemicals placed on particulates |
US8541051B2 (en) | 2003-08-14 | 2013-09-24 | Halliburton Energy Services, Inc. | On-the fly coating of acid-releasing degradable material onto a particulate |
US7833944B2 (en) | 2003-09-17 | 2010-11-16 | Halliburton Energy Services, Inc. | Methods and compositions using crosslinked aliphatic polyesters in well bore applications |
US7829507B2 (en) * | 2003-09-17 | 2010-11-09 | Halliburton Energy Services Inc. | Subterranean treatment fluids comprising a degradable bridging agent and methods of treating subterranean formations |
US7674753B2 (en) | 2003-09-17 | 2010-03-09 | Halliburton Energy Services, Inc. | Treatment fluids and methods of forming degradable filter cakes comprising aliphatic polyester and their use in subterranean formations |
US7195068B2 (en) * | 2003-12-15 | 2007-03-27 | Halliburton Energy Services, Inc. | Filter cake degradation compositions and methods of use in subterranean operations |
US7096947B2 (en) * | 2004-01-27 | 2006-08-29 | Halliburton Energy Services, Inc. | Fluid loss control additives for use in fracturing subterranean formations |
US20050173116A1 (en) | 2004-02-10 | 2005-08-11 | Nguyen Philip D. | Resin compositions and methods of using resin compositions to control proppant flow-back |
US7211547B2 (en) | 2004-03-03 | 2007-05-01 | Halliburton Energy Services, Inc. | Resin compositions and methods of using such resin compositions in subterranean applications |
US7299875B2 (en) | 2004-06-08 | 2007-11-27 | Halliburton Energy Services, Inc. | Methods for controlling particulate migration |
US7299869B2 (en) * | 2004-09-03 | 2007-11-27 | Halliburton Energy Services, Inc. | Carbon foam particulates and methods of using carbon foam particulates in subterranean applications |
US7757768B2 (en) | 2004-10-08 | 2010-07-20 | Halliburton Energy Services, Inc. | Method and composition for enhancing coverage and displacement of treatment fluids into subterranean formations |
US7648946B2 (en) | 2004-11-17 | 2010-01-19 | Halliburton Energy Services, Inc. | Methods of degrading filter cakes in subterranean formations |
US7883740B2 (en) | 2004-12-12 | 2011-02-08 | Halliburton Energy Services, Inc. | Low-quality particulates and methods of making and using improved low-quality particulates |
US20060169182A1 (en) | 2005-01-28 | 2006-08-03 | Halliburton Energy Services, Inc. | Methods and compositions relating to the hydrolysis of water-hydrolysable materials |
US8030249B2 (en) | 2005-01-28 | 2011-10-04 | Halliburton Energy Services, Inc. | Methods and compositions relating to the hydrolysis of water-hydrolysable materials |
US7267170B2 (en) * | 2005-01-31 | 2007-09-11 | Halliburton Energy Services, Inc. | Self-degrading fibers and associated methods of use and manufacture |
US20080009423A1 (en) | 2005-01-31 | 2008-01-10 | Halliburton Energy Services, Inc. | Self-degrading fibers and associated methods of use and manufacture |
US8598092B2 (en) | 2005-02-02 | 2013-12-03 | Halliburton Energy Services, Inc. | Methods of preparing degradable materials and methods of use in subterranean formations |
US7216705B2 (en) * | 2005-02-22 | 2007-05-15 | Halliburton Energy Services, Inc. | Methods of placing treatment chemicals |
US7673686B2 (en) | 2005-03-29 | 2010-03-09 | Halliburton Energy Services, Inc. | Method of stabilizing unconsolidated formation for sand control |
US7662753B2 (en) | 2005-05-12 | 2010-02-16 | Halliburton Energy Services, Inc. | Degradable surfactants and methods for use |
US7677315B2 (en) | 2005-05-12 | 2010-03-16 | Halliburton Energy Services, Inc. | Degradable surfactants and methods for use |
US7318474B2 (en) | 2005-07-11 | 2008-01-15 | Halliburton Energy Services, Inc. | Methods and compositions for controlling formation fines and reducing proppant flow-back |
US7713916B2 (en) | 2005-09-22 | 2010-05-11 | Halliburton Energy Services, Inc. | Orthoester-based surfactants and associated methods |
WO2007075855A2 (en) * | 2005-12-21 | 2007-07-05 | Bj Services Company | Concentric coiled tubing annular fracturing string |
US7819192B2 (en) | 2006-02-10 | 2010-10-26 | Halliburton Energy Services, Inc. | Consolidating agent emulsions and associated methods |
US8613320B2 (en) | 2006-02-10 | 2013-12-24 | Halliburton Energy Services, Inc. | Compositions and applications of resins in treating subterranean formations |
US7926591B2 (en) | 2006-02-10 | 2011-04-19 | Halliburton Energy Services, Inc. | Aqueous-based emulsified consolidating agents suitable for use in drill-in applications |
US7665517B2 (en) | 2006-02-15 | 2010-02-23 | Halliburton Energy Services, Inc. | Methods of cleaning sand control screens and gravel packs |
US8329621B2 (en) | 2006-07-25 | 2012-12-11 | Halliburton Energy Services, Inc. | Degradable particulates and associated methods |
US7687438B2 (en) | 2006-09-20 | 2010-03-30 | Halliburton Energy Services, Inc. | Drill-in fluids and associated methods |
US7678742B2 (en) | 2006-09-20 | 2010-03-16 | Halliburton Energy Services, Inc. | Drill-in fluids and associated methods |
US7678743B2 (en) | 2006-09-20 | 2010-03-16 | Halliburton Energy Services, Inc. | Drill-in fluids and associated methods |
US7686080B2 (en) | 2006-11-09 | 2010-03-30 | Halliburton Energy Services, Inc. | Acid-generating fluid loss control additives and associated methods |
US8220548B2 (en) | 2007-01-12 | 2012-07-17 | Halliburton Energy Services Inc. | Surfactant wash treatment fluids and associated methods |
WO2008092241A1 (en) * | 2007-01-29 | 2008-08-07 | Noetic Engineering Inc. | A method for providing a preferential specific injection distribution from a horizontal injection well |
US7934557B2 (en) | 2007-02-15 | 2011-05-03 | Halliburton Energy Services, Inc. | Methods of completing wells for controlling water and particulate production |
DK200701385A (en) | 2007-09-26 | 2009-03-27 | Maersk Olie & Gas | Method of Stimulating a Fire |
US7980299B1 (en) | 2007-12-12 | 2011-07-19 | Manulik Matthew C | Horizontal well treating method |
US20090178801A1 (en) * | 2008-01-14 | 2009-07-16 | Halliburton Energy Services, Inc. | Methods for injecting a consolidation fluid into a wellbore at a subterranian location |
US8006760B2 (en) | 2008-04-10 | 2011-08-30 | Halliburton Energy Services, Inc. | Clean fluid systems for partial monolayer fracturing |
US7906464B2 (en) | 2008-05-13 | 2011-03-15 | Halliburton Energy Services, Inc. | Compositions and methods for the removal of oil-based filtercakes |
US7833943B2 (en) | 2008-09-26 | 2010-11-16 | Halliburton Energy Services Inc. | Microemulsifiers and methods of making and using same |
US7762329B1 (en) | 2009-01-27 | 2010-07-27 | Halliburton Energy Services, Inc. | Methods for servicing well bores with hardenable resin compositions |
US7998910B2 (en) | 2009-02-24 | 2011-08-16 | Halliburton Energy Services, Inc. | Treatment fluids comprising relative permeability modifiers and methods of use |
US8082992B2 (en) | 2009-07-13 | 2011-12-27 | Halliburton Energy Services, Inc. | Methods of fluid-controlled geometry stimulation |
RU2502865C2 (en) * | 2011-09-26 | 2013-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Башкирский государственный университет" | Method and device for development of oil and gas-oil deposits |
US9856718B2 (en) | 2014-11-14 | 2018-01-02 | Weatherford Technology Holdings, Llc | Method and apparatus for selective injection |
US10267127B2 (en) | 2015-08-25 | 2019-04-23 | Owen Oil Tools Lp | EFP detonating cord |
CN107575186B (en) * | 2017-09-12 | 2019-08-06 | 西南石油大学 | It is a kind of to cross screen casing sand-preventing process |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2569437A (en) * | 1946-04-26 | 1951-10-02 | Baker Oil Tools Inc | Valve control for well tools |
US2569026A (en) * | 1946-12-09 | 1951-09-25 | Arnold P Springer | Well apparatus |
US2512801A (en) * | 1947-02-17 | 1950-06-27 | Shell Dev | Perforation washer |
US2675880A (en) * | 1948-06-28 | 1954-04-20 | Baker Oil Tools Inc | Perforation washing apparatus |
US2880807A (en) * | 1953-07-03 | 1959-04-07 | Cicero C Brown | Apparatus for performing well operations |
US2918973A (en) * | 1953-10-16 | 1959-12-29 | Peter K Ozinga | Perforation clean out tool |
US3010518A (en) * | 1956-10-05 | 1961-11-28 | Engineered Grouting Service | Well pressure cementing tool |
US2991883A (en) * | 1957-05-10 | 1961-07-11 | Lester C Hendrickson | Grain handling machine |
US3020960A (en) * | 1958-01-27 | 1962-02-13 | F P Gribbin | Tool for injecting fluent material into wells |
US3032108A (en) * | 1959-04-27 | 1962-05-01 | Jersey Prod Res Co | Well packer apparatus |
US3108024A (en) * | 1961-08-31 | 1963-10-22 | Jersey Prod Res Co | Liquid coating applicator |
US3456724A (en) * | 1967-10-12 | 1969-07-22 | Cicero C Brown | Wash tool for use in wells |
US3487877A (en) | 1967-12-27 | 1970-01-06 | Oil Base | Controlling consolidation of permeable earth formations |
FR2033524A5 (en) * | 1969-02-26 | 1970-12-04 | Elf | |
US3593919A (en) | 1969-03-28 | 1971-07-20 | Portec Inc | Structural end post unit for railway track |
US3593797A (en) | 1969-05-16 | 1971-07-20 | Schlumberger Technology Corp | Method and apparatus for consolidating a subsurface earth formation |
US3760878A (en) * | 1972-03-16 | 1973-09-25 | Amoco Prod Co | Perforations washing tool |
US3765484A (en) | 1972-06-02 | 1973-10-16 | Shell Oil Co | Method and apparatus for treating selected reservoir portions |
US3861465A (en) | 1972-08-28 | 1975-01-21 | Baker Oil Tools Inc | Method of selective formation treatment |
US3825070A (en) * | 1972-12-22 | 1974-07-23 | Texaco Inc | Gradient barrier in a secondary recovery operation to inhibit water coning |
FR2234448B1 (en) | 1973-06-25 | 1977-12-23 | Petroles Cie Francaise | |
US4081032A (en) * | 1977-03-31 | 1978-03-28 | Chevron Research Company | Steam deflector for use in a well |
US4192375A (en) * | 1978-12-11 | 1980-03-11 | Union Oil Company Of California | Gravel-packing tool assembly |
AU548335B2 (en) * | 1980-11-19 | 1985-12-05 | Riha, M. | Well water sampling device |
US4414118A (en) * | 1981-10-30 | 1983-11-08 | Halliburton Company | Method and compositions for dissolving silicates in subterranean formation |
US4424859A (en) * | 1981-11-04 | 1984-01-10 | Sims Coleman W | Multi-channel fluid injection system |
US4595057A (en) * | 1984-05-18 | 1986-06-17 | Chevron Research Company | Parallel string method for multiple string, thermal fluid injection |
US4651824A (en) * | 1985-06-04 | 1987-03-24 | Gradle Donovan B | Controlled placement of underground fluids |
US4838349A (en) * | 1987-11-16 | 1989-06-13 | Baker Oil Tools, Inc. | Apparatus for testing selected zones of a subterranean bore |
DE8801702U1 (en) * | 1988-02-10 | 1988-04-14 | Meister, Karl, 8346 Simbach, De | |
US5024275A (en) * | 1989-12-08 | 1991-06-18 | Chevron Research Company | Method of recovering hydrocarbons using single well injection/production system |
US5209296A (en) * | 1991-12-19 | 1993-05-11 | Mobil Oil Corporation | Acidizing method for gravel packing wells |
US5247993A (en) * | 1992-06-16 | 1993-09-28 | Union Oil Company Of California | Enhanced imbibition oil recovery process |
US5335732A (en) * | 1992-12-29 | 1994-08-09 | Mcintyre Jack W | Oil recovery combined with injection of produced water |
AU2198397A (en) * | 1996-03-19 | 1997-10-10 | Bj Service International, Inc. | Method and apparatus using coiled-in-coiled tubing |
-
1997
- 1997-12-24 EP EP97310613A patent/EP0926310A1/en not_active Withdrawn
-
1998
- 1998-12-22 GC GCP199852 patent/GC0000013A/en active
- 1998-12-23 DE DE69804017T patent/DE69804017T2/en not_active Expired - Fee Related
- 1998-12-23 AU AU22774/99A patent/AU739175B2/en not_active Expired
- 1998-12-23 RU RU2000119798/03A patent/RU2209296C2/en not_active IP Right Cessation
- 1998-12-23 US US09/219,906 patent/US6260622B1/en not_active Expired - Lifetime
- 1998-12-23 WO PCT/EP1998/008548 patent/WO1999034092A1/en active IP Right Grant
- 1998-12-23 CA CA002315024A patent/CA2315024C/en not_active Expired - Lifetime
- 1998-12-23 EP EP98966425A patent/EP1042583B1/en not_active Expired - Lifetime
-
2000
- 2000-06-23 OA OA1200000189A patent/OA11436A/en unknown
- 2000-06-23 NO NO20003305A patent/NO320304B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1042583A1 (en) | 2000-10-11 |
DE69804017D1 (en) | 2002-04-04 |
NO20003305L (en) | 2000-08-18 |
OA11436A (en) | 2004-04-26 |
CA2315024C (en) | 2006-02-07 |
GC0000013A (en) | 2002-10-30 |
AU739175B2 (en) | 2001-10-04 |
WO1999034092A1 (en) | 1999-07-08 |
RU2209296C2 (en) | 2003-07-27 |
NO20003305D0 (en) | 2000-06-23 |
US6260622B1 (en) | 2001-07-17 |
NO320304B1 (en) | 2005-11-21 |
AU2277499A (en) | 1999-07-19 |
EP1042583B1 (en) | 2002-02-27 |
DE69804017T2 (en) | 2002-07-18 |
EP0926310A1 (en) | 1999-06-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2315024A1 (en) | Apparatus and method for injecting treatment fluids into an underground formation | |
EP1693548A3 (en) | Method and apparatus for treating a well | |
CA2129835A1 (en) | Template and Process for Drillng and Completing Multiple Wells | |
CA2495342A1 (en) | Use of distributed temperature sensors during wellbore treatments | |
CA2253687A1 (en) | Apparatus and methods for stimulating a subterranean well | |
CA2474518A1 (en) | Fracturing port collar for wellbore pack-off system | |
NO952997L (en) | Well treatment fluid, as well as a method for fracturing an underground formation | |
CA2215266A1 (en) | Apparatus and process for drilling and completing multiple wells | |
EP1225302A3 (en) | Well completion apparatus and method | |
CA2055549A1 (en) | Recovering hydrocarbons from tar sand or heavy oil reservoirs | |
BR9603814A (en) | Water-based process and fluid using hydrophobically modified guar as a filtrate reducer | |
CA2123075A1 (en) | Method and Apparatus for Producing and Drilling a Well | |
UA8006A1 (en) | Method for ramming areas with distorted circulation | |
GB0027269D0 (en) | Recovery of production fluids from an oil or gas well | |
CA2418574A1 (en) | Downhole fluid disposal apparatus and methods | |
CA2493901A1 (en) | Method for construction and completion of injection wells | |
CA2365710A1 (en) | Method and apparatus for drilling and completing a well | |
CA2193923A1 (en) | Method of oil/gas stimulation | |
CA2216668A1 (en) | Telescoping joint for use in a conduit connected to a wellhead and zone isolating tool for use therewith | |
CA2296054A1 (en) | Computer controlled injection wells | |
CA2290895A1 (en) | Method and apparatus for well logging and well control | |
CA2057999A1 (en) | Conditioning of formation for sandstone acidizing | |
IT1289544B1 (en) | METHOD FOR CORE DRILLING THE SOIL DURING THE DRILLING PHASE OF WELLS USING DRILLING FLUID | |
RU2000110874A (en) | METHOD FOR DEVELOPMENT OF OIL DEPOSIT IN CARBONATE COLLECTORS OF CRACKED-POROUS TYPE | |
GB2324095A (en) | Compositions and processes for treating subterranean formations |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20181224 |