NO328706B1 - Vannbasert borefluid - Google Patents
Vannbasert borefluid Download PDFInfo
- Publication number
- NO328706B1 NO328706B1 NO19980655A NO980655A NO328706B1 NO 328706 B1 NO328706 B1 NO 328706B1 NO 19980655 A NO19980655 A NO 19980655A NO 980655 A NO980655 A NO 980655A NO 328706 B1 NO328706 B1 NO 328706B1
- Authority
- NO
- Norway
- Prior art keywords
- drilling fluid
- fluid according
- sorbitol
- water
- additive
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims description 44
- 239000012530 fluid Substances 0.000 title claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 18
- 239000000654 additive Substances 0.000 claims description 23
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 16
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 16
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 16
- 239000000600 sorbitol Substances 0.000 claims description 16
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 12
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 11
- 230000000996 additive effect Effects 0.000 claims description 10
- 125000002947 alkylene group Chemical group 0.000 claims description 10
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 8
- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 claims description 4
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 239000001103 potassium chloride Substances 0.000 claims description 4
- 235000011164 potassium chloride Nutrition 0.000 claims description 4
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims description 3
- 229930195725 Mannitol Natural products 0.000 claims description 3
- 239000012736 aqueous medium Substances 0.000 claims description 3
- 239000000594 mannitol Substances 0.000 claims description 3
- 235000010355 mannitol Nutrition 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 3
- UNXHWFMMPAWVPI-QWWZWVQMSA-N D-threitol Chemical compound OC[C@@H](O)[C@H](O)CO UNXHWFMMPAWVPI-QWWZWVQMSA-N 0.000 claims description 2
- 239000004386 Erythritol Substances 0.000 claims description 2
- JVWLUVNSQYXYBE-UHFFFAOYSA-N Ribitol Natural products OCC(C)C(O)C(O)CO JVWLUVNSQYXYBE-UHFFFAOYSA-N 0.000 claims description 2
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 claims description 2
- 235000019414 erythritol Nutrition 0.000 claims description 2
- 229940009714 erythritol Drugs 0.000 claims description 2
- 239000013505 freshwater Substances 0.000 claims description 2
- FBPFZTCFMRRESA-GUCUJZIJSA-N galactitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-GUCUJZIJSA-N 0.000 claims description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 2
- 150000002772 monosaccharides Chemical class 0.000 claims description 2
- HEBKCHPVOIAQTA-ZXFHETKHSA-N ribitol Chemical compound OC[C@H](O)[C@H](O)[C@H](O)CO HEBKCHPVOIAQTA-ZXFHETKHSA-N 0.000 claims description 2
- 239000011833 salt mixture Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims 2
- 229920005862 polyol Polymers 0.000 description 21
- 150000003077 polyols Chemical class 0.000 description 21
- 230000005764 inhibitory process Effects 0.000 description 12
- 238000005520 cutting process Methods 0.000 description 10
- 230000002401 inhibitory effect Effects 0.000 description 10
- 229920001223 polyethylene glycol Polymers 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000006185 dispersion Substances 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 230000003993 interaction Effects 0.000 description 4
- 229910001414 potassium ion Inorganic materials 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical group CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 3
- 150000001768 cations Chemical class 0.000 description 3
- 239000002734 clay mineral Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 150000002334 glycols Chemical class 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- -1 poly-alkylene glycols Chemical class 0.000 description 3
- 229920005604 random copolymer Polymers 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920001451 polypropylene glycol Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical class CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002314 glycerols Chemical class 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000223 polyglycerol Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 150000005846 sugar alcohols Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/02—Acyclic radicals, not substituted by cyclic structures
- C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
-
- 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
- C09K8/06—Clay-free compositions
- C09K8/08—Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Dispersion Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Polyethers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Earth Drilling (AREA)
- Drilling Tools (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Medicinal Preparation (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9516843A GB2304354A (en) | 1995-08-17 | 1995-08-17 | Drilling fluid |
| PCT/GB1996/001989 WO1997007183A1 (fr) | 1995-08-17 | 1996-08-14 | Fluide de forage |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO980655D0 NO980655D0 (no) | 1998-02-16 |
| NO980655L NO980655L (no) | 1998-04-16 |
| NO328706B1 true NO328706B1 (no) | 2010-05-03 |
Family
ID=10779358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO19980655A NO328706B1 (no) | 1995-08-17 | 1998-02-16 | Vannbasert borefluid |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6544933B1 (fr) |
| CN (1) | CN1091791C (fr) |
| AU (1) | AU6748896A (fr) |
| BR (1) | BR9610406A (fr) |
| CA (1) | CA2229593C (fr) |
| EA (1) | EA000408B1 (fr) |
| GB (1) | GB2304354A (fr) |
| NO (1) | NO328706B1 (fr) |
| WO (1) | WO1997007183A1 (fr) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2319047B (en) * | 1995-08-17 | 1999-12-01 | Sofitech Nv | Drilling fluid |
| US6242389B1 (en) | 1997-04-14 | 2001-06-05 | Bp Chemicals Limited | Ethers |
| US6054416A (en) * | 1998-05-07 | 2000-04-25 | Baker Hughes Incorporated | Drilling fluids comprising biodegradable heteropolyglycols |
| AU2003268077A1 (en) * | 2002-08-28 | 2004-03-19 | Grain Processing Corporation | Drilling fluid, apparatus, and method |
| US7192907B2 (en) * | 2003-09-03 | 2007-03-20 | M-I L.L.C. | High performance water-based drilling mud and method of use |
| US7178610B2 (en) | 2004-08-11 | 2007-02-20 | Halliburton Energy Services, Inc. | Subterranean treatment fluids comprising polyoxazoline compositions and methods of use in subterranean formations |
| US7879768B2 (en) | 2007-07-04 | 2011-02-01 | Mud Enginneering | Drilling fluid composition comprising hydrophobically associating polymers and methods of use thereof |
| ITVA20070085A1 (it) * | 2007-11-21 | 2009-05-22 | Lamberti Spa | Inibitori di rigonfiamento di argille |
| IT1402351B1 (it) * | 2010-10-13 | 2013-08-30 | Lamberti Spa | Inibitori di argille per l'industria petrolifera. |
| RU2601636C2 (ru) | 2012-06-25 | 2016-11-10 | ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи | Амины гликолевых эфиров для использования в качестве агентов предотвращения диспергирования сланцевых и глинистых пород для буровой промышленности |
| CN103540298B (zh) * | 2012-07-12 | 2016-12-21 | 中国石油化工股份有限公司 | 油基钻井液及其制备方法 |
| WO2014014886A1 (fr) | 2012-07-18 | 2014-01-23 | Dow Global Technologies Llc | Amine alcools mono-quaternaires à utiliser comme agents d'inhibition d'argile et de schiste pour l'industrie du forage |
| RU2598102C2 (ru) | 2012-07-20 | 2016-09-20 | ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи | Усовершенствованная глина, средства ингибирования сланцевой глины и способ их применения |
| WO2014123709A1 (fr) | 2013-02-07 | 2014-08-14 | Dow Global Technologies Llc | Résines polyaminopolyamide-épichlorohydrines destinées à être utilisées comme agents d'inhibition d'argile et de schiste pour l'industrie de forage |
| CN104140452B (zh) * | 2013-10-29 | 2017-10-17 | 中国石油化工股份有限公司 | 一种钻井液用两性离子烷基糖苷的制备方法 |
| WO2015069273A1 (fr) * | 2013-11-08 | 2015-05-14 | Halliburton Energy Services, Inc. | Tensioactifs copolymères pour utilisation dans des fluides de fond de puits |
| GB2586924B (en) * | 2013-11-08 | 2021-06-02 | Halliburton Energy Services Inc | Copolymer surfactants for use in downhole fluids |
| US10294410B2 (en) | 2014-07-31 | 2019-05-21 | Halliburton Energy Services, Inc. | Guanidine- or guanidinium-containing compounds for treatment of subterranean formations |
| RU2017135502A (ru) | 2015-03-12 | 2019-04-12 | Геркулес Ллк | Композиция для обработки нефтегазовых скважин, включающая гидроксиэтилцеллюлозу и сшитый поливинилпирролидон |
| CN105295862B (zh) * | 2015-10-27 | 2018-09-04 | 中国石油天然气集团公司 | 一种水基钻井液抑制剂组合物和水基钻井液及其应用 |
| CN105295863B (zh) * | 2015-10-27 | 2018-08-10 | 中国石油天然气集团公司 | 一种水基钻井液抑制剂和水基钻井液及其应用 |
| WO2018144066A1 (fr) | 2017-02-03 | 2018-08-09 | Saudi Arabian Oil Company | Compositions et procédés de fabrication de fluides d'inhibition de schiste |
| CN109085659A (zh) * | 2018-06-29 | 2018-12-25 | 中海石油(中国)有限公司湛江分公司 | 一种针对深水单层隔水管的一体化保温测试液 |
| CA3109490C (fr) | 2020-05-05 | 2023-05-23 | Syncrude Canada Ltd. In Trust For The Owners Of The Syncrude Project As Such Owners Exist Now And In The Future | Methodes pour traiter les sables bitumineux contenant des argiles gonflantes |
| CA3206391A1 (fr) | 2022-07-12 | 2024-01-12 | Secure Energy (Drilling Services) Inc. | Melanges de lubrifiants et methodes pour ameliorer le pouvoir lubrifiant des boues de forage a base de saumure |
| US12173235B2 (en) * | 2023-04-07 | 2024-12-24 | Halliburton Energy Services, Inc. | Propoxylates for foam enhancement |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2996551A (en) * | 1953-09-24 | 1961-08-15 | Petrolite Corp | Certain polyepoxide-modified oxyalkylation derivatives being obtained in turn by oxyalkylation of certain polyols having at least three hydroxyls |
| US3079337A (en) * | 1960-03-28 | 1963-02-26 | Jersey Prod Res Co | Reaction products of ethylene oxide and polyhydroxide alcohols as water viscosity thickeners for secondary recovery |
| US3254713A (en) * | 1961-06-12 | 1966-06-07 | Emery Industries Inc | Method of recovering oil from oil-producing sands utilizing compounds having exceptional wetting properties |
| US4719021A (en) * | 1984-11-28 | 1988-01-12 | Sun Drilling Products Corporation | Shale-stabilizing drilling fluids and method for producing same |
| US5007489A (en) * | 1990-04-27 | 1991-04-16 | Baker Hughes Incorporated | Drilling fluid methods and composition |
| GB9100699D0 (en) * | 1991-01-12 | 1991-02-27 | British Petroleum Co Plc | Drilling fluid additive |
| US5403820A (en) | 1992-12-24 | 1995-04-04 | O'brien-Goins-Simpson & Associates | Environmentally safe water base drilling fluid |
| DE4302462A1 (de) | 1992-12-28 | 1994-06-30 | Henkel Kgaa | Rheologisch gesteuerte fließ- und pumpfähige wäßrige Zubereitungen beispielsweise für die Verwendung als wasserbasierte Bohrschlämme |
| EP0702073A1 (fr) | 1994-09-19 | 1996-03-20 | Baker Hughes Incorporated | Fluide de forage stabilisant les schistes, contenant des dérivés de saccharide |
| GB2297775B (en) * | 1995-02-10 | 1998-10-07 | Sofitech Nv | Drilling fluid |
| GB2297774B (en) * | 1995-02-10 | 1998-10-07 | Sofitech Nv | Drilling fluid |
-
1995
- 1995-08-17 GB GB9516843A patent/GB2304354A/en not_active Withdrawn
-
1996
- 1996-08-14 CN CN96196885A patent/CN1091791C/zh not_active Expired - Fee Related
- 1996-08-14 US US09/011,938 patent/US6544933B1/en not_active Expired - Lifetime
- 1996-08-14 EA EA199800131A patent/EA000408B1/ru not_active IP Right Cessation
- 1996-08-14 CA CA002229593A patent/CA2229593C/fr not_active Expired - Fee Related
- 1996-08-14 WO PCT/GB1996/001989 patent/WO1997007183A1/fr not_active Ceased
- 1996-08-14 AU AU67488/96A patent/AU6748896A/en not_active Abandoned
- 1996-08-14 BR BR9610406A patent/BR9610406A/pt not_active Application Discontinuation
-
1998
- 1998-02-16 NO NO19980655A patent/NO328706B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2304354A (en) | 1997-03-19 |
| US6544933B1 (en) | 2003-04-08 |
| CA2229593A1 (fr) | 1997-02-27 |
| CA2229593C (fr) | 2009-02-17 |
| GB9516843D0 (en) | 1995-10-18 |
| EA000408B1 (ru) | 1999-06-24 |
| CN1091791C (zh) | 2002-10-02 |
| BR9610406A (pt) | 1999-08-03 |
| NO980655L (no) | 1998-04-16 |
| WO1997007183A1 (fr) | 1997-02-27 |
| EA199800131A1 (ru) | 1998-08-27 |
| NO980655D0 (no) | 1998-02-16 |
| AU6748896A (en) | 1997-03-12 |
| CN1196078A (zh) | 1998-10-14 |
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