WO1993016145A1 - Fluide fonctionnel - Google Patents
Fluide fonctionnel Download PDFInfo
- Publication number
- WO1993016145A1 WO1993016145A1 PCT/EP1993/000330 EP9300330W WO9316145A1 WO 1993016145 A1 WO1993016145 A1 WO 1993016145A1 EP 9300330 W EP9300330 W EP 9300330W WO 9316145 A1 WO9316145 A1 WO 9316145A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acetal
- carbon atoms
- water
- oil
- aliphatic
- Prior art date
Links
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
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/26—Oil-in-water emulsions
- C09K8/28—Oil-in-water emulsions containing organic additives
-
- 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
- C09K8/34—Organic liquids
-
- 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
- C09K8/36—Water-in-oil emulsions
Definitions
- This invention relates to drilling fluids, more especially to such fluids for use in well drilling.
- Drilling of oil or gas wells normally involves the circulation of a fluid through the drill string and out through nozzles in the drill bit, the fluid being returned through the annular passage formed between the drill string and the bore.
- the fluid cools and lubricates the drill, provides a hydrostatic head to counterbalance pressures, and removes the cuttings from the drill bit .
- Such fluids are also employed in other areas, for example, geothermal drilling, drilling for water and scientific drilling.
- Oil-containing drilling emulsions have been used for many years for these purposes.
- the emulsion may be in the form of a water-in-oil or an oil-in-water emulsion, in each case normally having finely divided solids suspended therein-, and containing a variety of additives for various purposes, e.g., emulsifiers, surfactants, pH control agents, biocides, corrosion inhibitors, weight and viscosity regulators, oxygen and sulphur scavengers, and fluid-loss additives.
- emulsifiers e.g., surfactants, pH control agents, biocides, corrosion inhibitors, weight and viscosity regulators, oxygen and sulphur scavengers, and fluid-loss additives.
- hydrocarbon oil traditionally used was a hydrocarbon oil, often with an aromatic content; concern for the environ ⁇ ment has recently required hydrocarbon oils used for the purpose to be largely aliphatic and more recently, because aliphatic hydrocarbons are not readily biodegrad ⁇ able, hydrocarbons are being increasingly restricted in their use.
- Many replacements for hydrocarbons have been suggested; these have primarily been aliphatic materials with functional groups that facilitate biodegradation, for example, ester groups. Esters are, however, likely to be saponified in use, causing problems with odour, viscosity increase, wax build up, and poor separation of cuttings from the fluid.
- the material should be hydrophobic and of low polarity (to minimize swelling of clays and shales) . It should have as high a flash point as possible, advantageously above 100°C, and preferably above 130°C, and more preferably above 160°C. Its viscosity at 20°C should be at most 20 cSt (20 mm ⁇ /s), advantageously at most 15 cSt, and preferably at most 10 cSt, and it should have a pour point below -15°C, to be pumpable between -5°C and -10°C. It should be a poor solvent for C02 and H2S.
- ET products should have low toxicity both to mammals and to marine flora and fauna, and little odour. All these requirements must be met without detracting from the prime purpose of the material, to provide the best possible lubricity.
- Such ethers have, however, disadvantages in use in drilling fluids, including being pumpable only with difficulty at temperatures commonly encountered in practice.
- ethers tend to be biodegraded only with difficulty under aerobic conditions.
- the present invention provides the use in the oil phase of a drilling fluid of at least one hydrocarbyl, especially aliphatic, acetal.
- the acetal advantageously contains at most 25 carbon atoms, and preferably from 14 to 25 carbon atoms, and more especially is of the formula I
- the acetal of the formula I has a total number of carbon atoms of at most 25, preferably within the range of from 14 to 25.
- the viscosity of the acetal is at most 20 cSt (mm 2 /s) at 20°C.
- hydrocarbyl as used herein means that the radical concerned is primarily composed of hydrogen and carbon atoms but does not exclude the presence of other atoms or groups in a proportion insufficient to detract from the substantially hydrocarbon charcteristics of the radical concerned.
- R 1 and R 2 represent alkyl or alkenyl radicals with from 6 to 8, preferably 7, carbon atoms.
- R 3 represents an alkyl or alkenyl radical with from 5 to 7, preferably 6, carbon atoms.
- R 4 represents hydrogen. The total number of carbon atoms is advantageously from 20 to 24 and is preferably 21.
- alkyl or alkenyl groups may be straight or branched chain; if they are branched they advantageously contain methyl and ethyl branches. Alkyl groups are preferred. Mixtures of acetals may be used.
- the acetals may be made by methods that are per se known, conveniently by reaction of an aldehyde (less preferably a ketone) with two or more moles of one or more alcohols in the presence of an acid catalyst with heating to distil off the water produced.
- aldehyde less preferably a ketone
- the synthesis of acetals is described in more detail in "Methoden der Organischen Chemie", Band 6/3, p 109 ff, E. Miiller, Ed, G. Thieme Verlag, Stuttgart, Germany.
- the acetal may be formed by hydro- formylating an aliphatic olefin feedstock, for example a C ⁇ to Cio, especially a C6 to C ⁇ , feedstock, and hydrogenating the resulting aldehyde.
- the product contains olefins, .saturated hydrocarbons, aldehydes, alcohols and heavy residues. The aldehydes and alcohols are caused to react as described above to form the desired acetal.
- the invention also provides the use in a drilling fluid of an aliphatic acetal comprising the product obtainable, and advantageously obtained, by hydroformylating an aliphatic C ⁇ to Cio olefin feedstock, causing the resulting mixture to react in the presence of an acid catalyst with continuous removal of water, followed by neutralization and stripping; for example with nitrogen, to remove light cuts, e.g., olefins, saturates, and alcohols.
- the hydroformylation is carried out on an olefin feedstock and under conditions appropriate to obtain acetals described above in accordance with the formula I, it being understood that in accordance with this second aspect of the invention the acetals will generally be a mixture of acetals of such a formula, and generally in admixture with other products of hydrofor ⁇ mylation and hydrogenation.
- the invention further provides a drilling fluid comprising an emulsion having an aqueous phase and an oil phase, in which the oil phase comprises the aliphatic acetal-comprising product obtainable, and advantageously obtained, by the procedures defined above.
- the acetal, or mixture of acetals, used in accordance with the invention advantageously has a pour point as determined by ASTM D97 below -15°C, preferably below -20°C and more preferably below -30°C.
- the acetal, or mixture of acetals advantageously has a viscosity, as
- TE SHEET determined by ASTM D445 at 20°C, of at most 20 cSt, preferably from 2 to 10, most preferably 3 to 8, cSt mm /s) .
- the invention also provides a drilling fluid comprising an emulsion comprising at least one hydrocarbyl, especially an aliphatic, acetal, preferably one having at most 25, more especially from 14 to 25 carbon atoms, advantageously an acetal of the formula I, water, at least one member selected from surfactants and emulsifiers, and at least one member selected from clay, a halide of an alkaline earth or alkali metal, and weighting material.
- an emulsion comprising at least one hydrocarbyl, especially an aliphatic, acetal, preferably one having at most 25, more especially from 14 to 25 carbon atoms, advantageously an acetal of the formula I, water, at least one member selected from surfactants and emulsifiers, and at least one member selected from clay, a halide of an alkaline earth or alkali metal, and weighting material.
- the emulsion may be an oil-in-water emulsion or, preferably, a water-in-oil emulsion.
- the working material of the oil phase may consist essentially of an acetal, or may comprise the acetal together with other oils.
- the acetal constitutes at least 40%, preferably at least 60%, by weight, of the oil phase .
- Other components may include those conventionally used, for example, the esters of natural or synthetic saturated or unsaturated fatty acids with mono- or poly- functional alcohols, ethers, acetals, optionally alkoxylated amines, ether alcohols, ether acids, ether esters, ether amines, and mineral oils (although these are not preferred for the reasons given above) .
- the oil phase advantageously represents from 5 to 65%, preferably from 5 to 50%, more preferably from 5 to 30%, and most preferably from 5 to 10%, by weight, based on the total weight of oil phase and unweighted aqueous phase.
- the oil phase advantageously represents from 55 to 95%, preferably from 75 to 95%, and most preferably from 75 to 90%, based on the total weight of oil phase and unweighted aqueous phase.
- the drilling fluid advantageously comprises surfactants and/or emulsifiers, groups which to some extent overlap.
- a non-ionic surfactant for example, polyalkylene ether derivatives of alcohols and alkyl phenols, advantageously having from 3 to 30 alkylene, preferably et ylene, oxy groups and from 8 to 20 carbon atoms in the hydrocarbon chain.
- polyalkylene ether derivatives of alcohols and alkyl phenols advantageously having from 3 to 30 alkylene, preferably et ylene, oxy groups and from 8 to 20 carbon atoms in the hydrocarbon chain.
- polyethylene oxy derivatives with from 5 to 20, more preferably from 5 to 15, repeat units with a linear or branched primary alcohol from 8 to 18, more preferably from 10 to 16, carbon atoms in the chain or with an alkyl phenol with a linear or branched alkyl group with from 6 to 14 carbon atoms .
- an ethoxylated fatty alcohol having from 5 to 20, advantageously 7 to 10, ethoxy groups and 11 carbon atoms in the chain which may be linear or branched.
- the surfactant may alternatively be a cationic surfactant, for example an imidazoline derivative, for example a fatty imidazoline salt of a strong monoprotic acid, for example one as described in U.S. Patent No.
- quaternary ammonium salt having at least one long chain alkyl or alkenyl substituent, e.g., one having from 8 to 20 carbon atoms, the remaining sub ⁇ stituents being alkyl groups with up to 4 carbon atoms, especially methyl, the anion being, for example chloride, bromide, iodide, phosphate, sulfamate, or acetate.
- the emulsifier there may be mentioned fatty amine alkoxylates, aromatic alkoxylates or an ether amine alkoxylate.
- the emulsifier is a quaternary ammonium salt, e.g., a long chain alkyl trimethyl or dialkyl dimethyl ammonium chloride, and preferably the quaternized reaction product of an oxyalkylated polyamine with a fatty acid, for example the product of reaction of a soya or coco fatty acid, or a blend of the two, ' with diethylene triamine, ethoxylation, and subsequent quaternization with methyl chloride.
- the drilling fluids of the invention may also contain a viscosity regulator, e.g., clay, for example, bentonite, which may be treated, e.g., with peptizing agents or with organic salts, to render them organophilic. Suitable proportions are, for example, up to 30%, preferably from 5 to 20%, by weight, based on the weight of unweighted aqueous phase and oil phase.
- the drilling fluids may also contain weighting agents, for example, barium sulphate, to increase the specific gravity of the fluid, e.g., up to 2.5, and more advantageously up to 1.6.
- the drilling fluids may also contain, in the aqueous phase, a soluble alkali or alkaline earth metal salt, especially calcium or potassium chloride, in an amount up to that needed to saturate the aqueous phase.
- a soluble alkali or alkaline earth metal salt especially calcium or potassium chloride
- the drilling fluids may also contain a fluid-loss additive, for example a hydrophobic lignite, to assist in developing a liquid-impervious film on the bore wall.
- a fluid-loss additive for example a hydrophobic lignite
- Suitable proportions are, for example, up to 7% by weight, based on the weight of the oil phase.
- Example 1 Synthesis of C21 acetal from n-heptanal and iso-heptanol 570 g (5.0 moles) of n-heptanal, 1359 g (11.7 moles, 15% molar excess) isoheptanol, 1.9 g (0.01 moles) p- toluene-sulfonic acid monohydrate were mixed in a 3 necked flask equipped with a reflux condenser, Dean-Stark trap, a thermometer and a nitrogen sparging fritted disk. The mixture was heated for 3 hours, 25 minutes, to a final reaction temperature of 110°C under a N2 flow. A total of 72 g of water was collected in the Dean-Stark trap (79 wt% conversion) .
- the reaction mixture was neutralized with 19 g a2C ⁇ 3 at 90°C and five times water-washed at room temperature .
- the product was isolated by nitrogen stripping under a pressure ranging from atmospheric to 100 mm Hg (about 13 kPa) for 12 to 13 hours, to remove the excess alcohol. This treatment resulted in 1386 g of product with a C21 acetal content of 84.2 wt% . The remainder is 2.5% residual iso-heptanol, 11.4% ethers including vinyl ethers, and 1.9% heavies.
- C7-0X0 hydrofeed composition by gas chromatography, per cent by weight: C6 ⁇ olefins/saturates 20; isoheptanal 19; isoheptanol 46; hemi-acetals/acetals 6; heavies 9) and 0.5 g p-toluenesulfonic acid are processed as described in Example 1.
- the product was then stripped under 2 for ca. 13 hours at 120°C at atmospheric pressure and an additional 2 hours at 135°C under a vacuum of 200-100 mm Hg (about 27 to 13 kPa) .
- the residue was filtered to remove the neutralizing agent and water-washed to yield 1500 g of product .
- a C21 acetal made as described above was tested for hydrolytic stability. No hydrolysis was observed after storage at room temperature in hydrochloric acid, pH 6, for 23 days or at pH 3 for 13 days, or in calcium hydroxide, pH 14, for 25 days. The acetal was stored in contact with an equal volume of aqueous solution at the given pH.
- i-Cn represents iso-alkyl of the given carbon number, where iso indicates the mixed branch product of oxonation.
- n-Cn represents the corresponding linear alkyl group.
Landscapes
- 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)
- Lubricants (AREA)
Abstract
Des acétals, notamment ceux possédant de 14 à 25 atomes de carbone, spécialement des acétals aliphatiques, sont utilisés comme fluides de perçage ou dans la phase huileuse des fluides de forage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO942978A NO942978L (no) | 1992-02-12 | 1994-08-11 | Funksjonelt fluid |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92301155 | 1992-02-12 | ||
EP92301155.5 | 1992-02-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993016145A1 true WO1993016145A1 (fr) | 1993-08-19 |
Family
ID=8211269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1993/000330 WO1993016145A1 (fr) | 1992-02-12 | 1993-02-10 | Fluide fonctionnel |
Country Status (2)
Country | Link |
---|---|
NO (1) | NO942978L (fr) |
WO (1) | WO1993016145A1 (fr) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0702074A1 (fr) * | 1994-09-15 | 1996-03-20 | Hoechst Aktiengesellschaft | Utilisation de mélanges contenant un acétal |
WO1998018882A1 (fr) * | 1996-10-30 | 1998-05-07 | Henkel Kommanditgesellschaft Auf Aktien | Procede pour faciliter l'evacuation de fluides actifs a base d'emulsions inversees eau dans l'huile |
WO1998018881A1 (fr) * | 1996-10-30 | 1998-05-07 | Henkel Kommanditgesellschaft Auf Aktien | Melanges multicomposants ameliores pour la desagregation du sol |
US5888944A (en) * | 1996-08-02 | 1999-03-30 | Mi L.L.C. | Oil-based drilling fluid |
US5905061A (en) * | 1996-08-02 | 1999-05-18 | Patel; Avind D. | Invert emulsion fluids suitable for drilling |
US5909779A (en) * | 1997-08-19 | 1999-06-08 | M-I L.L.C. | Oil-based drilling fluids suitable for drilling in the presence of acidic gases |
US5990050A (en) * | 1998-01-08 | 1999-11-23 | M-I L.L.C. | Water soluble invert emulsions |
US6029755A (en) * | 1998-01-08 | 2000-02-29 | M-I L.L.C. | Conductive medium for openhole logging and logging while drilling |
US6165946A (en) * | 1996-10-30 | 2000-12-26 | Henkel Kommanditgesellschaft Auf Aktien | Process for the facilitated waste disposal of working substances based on water-in-oil invert emulsions |
US6218342B1 (en) * | 1996-08-02 | 2001-04-17 | M-I Llc | Oil-based drilling fluid |
US6291405B1 (en) | 1995-09-11 | 2001-09-18 | M-I Llc | Glycol based drilling fluid |
US6308788B1 (en) | 1998-01-08 | 2001-10-30 | M-I Llc | Conductive medium for openhole logging and logging while drilling |
US6589917B2 (en) | 1996-08-02 | 2003-07-08 | M-I Llc | Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility |
US6828279B2 (en) | 2001-08-10 | 2004-12-07 | M-I Llc | Biodegradable surfactant for invert emulsion drilling fluid |
WO2008001049A1 (fr) | 2006-06-26 | 2008-01-03 | Bp Exploration Operating Company Limited | Fluide de forage |
EP2154224A1 (fr) | 2008-07-25 | 2010-02-17 | Bp Exploration Operating Company Limited | Procédé pour effectuer une opération de puits de forage |
WO2010141534A1 (fr) | 2009-06-02 | 2010-12-09 | Chevron Phillips Chemical Company Lp | Additifs de fluide de forage et leurs procédés de fabrication |
WO2012069784A1 (fr) | 2010-11-25 | 2012-05-31 | Bp Exploration Company Lmited | Consolidation |
WO2012152889A1 (fr) | 2011-05-12 | 2012-11-15 | Bp Exploration Operating Company Limited | Procédé de conduite d'une opération de forage |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3846319A (en) * | 1973-03-27 | 1974-11-05 | Chevron Res | Dioxan-containing aluminum lubricant |
EP0019999A1 (fr) * | 1979-05-02 | 1980-12-10 | Imperial Chemical Industries Plc | Acétales et leur préparation |
GB2074636A (en) * | 1980-04-28 | 1981-11-04 | Grace W R & Co | Fluid loss control system |
US4349443A (en) * | 1980-07-17 | 1982-09-14 | W. R. Grace & Co. | Viscosifier and fluid loss control system |
-
1993
- 1993-02-10 WO PCT/EP1993/000330 patent/WO1993016145A1/fr active Application Filing
-
1994
- 1994-08-11 NO NO942978A patent/NO942978L/no unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3846319A (en) * | 1973-03-27 | 1974-11-05 | Chevron Res | Dioxan-containing aluminum lubricant |
EP0019999A1 (fr) * | 1979-05-02 | 1980-12-10 | Imperial Chemical Industries Plc | Acétales et leur préparation |
GB2074636A (en) * | 1980-04-28 | 1981-11-04 | Grace W R & Co | Fluid loss control system |
US4349443A (en) * | 1980-07-17 | 1982-09-14 | W. R. Grace & Co. | Viscosifier and fluid loss control system |
Non-Patent Citations (3)
Title |
---|
Derwent Publications Ltd., London, GB; AN 82-01828J * |
Derwent Publications Ltd., London, GB; AN 87-255335 * |
PATENT ABSTRACTS OF JAPAN vol. 007, no. 077 30 March 1983 * |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU704257B2 (en) * | 1994-09-15 | 1999-04-15 | Clariant Gmbh | Use of acetal-containing mixtures |
EP0702074A1 (fr) * | 1994-09-15 | 1996-03-20 | Hoechst Aktiengesellschaft | Utilisation de mélanges contenant un acétal |
US5830830A (en) * | 1994-09-15 | 1998-11-03 | Clariant Gmbh | Use of acetal-containing mixtures |
US6291405B1 (en) | 1995-09-11 | 2001-09-18 | M-I Llc | Glycol based drilling fluid |
US6589917B2 (en) | 1996-08-02 | 2003-07-08 | M-I Llc | Invert emulsion drilling fluids and muds having negative alkalinity and elastomer compatibility |
US5905061A (en) * | 1996-08-02 | 1999-05-18 | Patel; Avind D. | Invert emulsion fluids suitable for drilling |
US5977031A (en) * | 1996-08-02 | 1999-11-02 | M-I L.L.C. | Ester based invert emulsion drilling fluids and muds having negative alkalinity |
US5985800A (en) * | 1996-08-02 | 1999-11-16 | M-I L.L.C. | Invert emulsion fluids suitable for drilling |
US5888944A (en) * | 1996-08-02 | 1999-03-30 | Mi L.L.C. | Oil-based drilling fluid |
US6218342B1 (en) * | 1996-08-02 | 2001-04-17 | M-I Llc | Oil-based drilling fluid |
WO1998018881A1 (fr) * | 1996-10-30 | 1998-05-07 | Henkel Kommanditgesellschaft Auf Aktien | Melanges multicomposants ameliores pour la desagregation du sol |
WO1998018882A1 (fr) * | 1996-10-30 | 1998-05-07 | Henkel Kommanditgesellschaft Auf Aktien | Procede pour faciliter l'evacuation de fluides actifs a base d'emulsions inversees eau dans l'huile |
EP1020507A2 (fr) * | 1996-10-30 | 2000-07-19 | Cognis Deutschland GmbH | Mélanges multi-composants améliorés pour la désagrégation du sol |
EP1020507A3 (fr) * | 1996-10-30 | 2000-11-29 | Cognis Deutschland GmbH | Mélanges multi-composants améliorés pour la désagrégation du sol |
US6165946A (en) * | 1996-10-30 | 2000-12-26 | Henkel Kommanditgesellschaft Auf Aktien | Process for the facilitated waste disposal of working substances based on water-in-oil invert emulsions |
US5909779A (en) * | 1997-08-19 | 1999-06-08 | M-I L.L.C. | Oil-based drilling fluids suitable for drilling in the presence of acidic gases |
US5990050A (en) * | 1998-01-08 | 1999-11-23 | M-I L.L.C. | Water soluble invert emulsions |
US6308788B1 (en) | 1998-01-08 | 2001-10-30 | M-I Llc | Conductive medium for openhole logging and logging while drilling |
US6029755A (en) * | 1998-01-08 | 2000-02-29 | M-I L.L.C. | Conductive medium for openhole logging and logging while drilling |
US6828279B2 (en) | 2001-08-10 | 2004-12-07 | M-I Llc | Biodegradable surfactant for invert emulsion drilling fluid |
WO2008001049A1 (fr) | 2006-06-26 | 2008-01-03 | Bp Exploration Operating Company Limited | Fluide de forage |
EP2154224A1 (fr) | 2008-07-25 | 2010-02-17 | Bp Exploration Operating Company Limited | Procédé pour effectuer une opération de puits de forage |
WO2010141534A1 (fr) | 2009-06-02 | 2010-12-09 | Chevron Phillips Chemical Company Lp | Additifs de fluide de forage et leurs procédés de fabrication |
WO2012069784A1 (fr) | 2010-11-25 | 2012-05-31 | Bp Exploration Company Lmited | Consolidation |
WO2012152889A1 (fr) | 2011-05-12 | 2012-11-15 | Bp Exploration Operating Company Limited | Procédé de conduite d'une opération de forage |
Also Published As
Publication number | Publication date |
---|---|
NO942978D0 (no) | 1994-08-11 |
NO942978L (no) | 1994-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0642561B1 (fr) | Fluide de travail | |
WO1993016145A1 (fr) | Fluide fonctionnel | |
US5461028A (en) | Fluid-drill-hole treatment agents based on carbonic acid diesters | |
CA2047697C (fr) | Mise en oeuvre d'esters choisis d'acides carboxyliques de faible longueur de chaine en phase huileuse dans des liquides de forage | |
EP1346006B1 (fr) | Diluants pour boues de forage comprenant emulsions inverses | |
EP0599921B1 (fr) | Procédé d'élimination d'une impurité ester d'un ether | |
US6489272B2 (en) | Lubricant, solvent and emulsifier composition and method of manufacture | |
US5759963A (en) | Use of acetals | |
JPH04504435A (ja) | インバート掘削液の成分としての親油性アルコール | |
JPH04505178A (ja) | o/wエマルジョン型の水系掘削液における選ばれた親油性エーテルの使用および生態学的許容性の改良された掘削液 | |
EP0206833A2 (fr) | Fluides aqueux | |
US3066159A (en) | Reaction product of polyols and epoxidized fatty compounds | |
EP3268446A1 (fr) | Désémulsifiant pour émulsions inversées de boue à base d'huile | |
KR20220161348A (ko) | 오일 및 가스 생산을 위한 계면활성제 | |
US3105050A (en) | Aqueous hydraulic fluid | |
AU2014318918A1 (en) | Viscoelastic oil-based fluid and related methods | |
WO1994006882A1 (fr) | Fluide soumis aux charges | |
FR2550796A1 (fr) | Compositions adjuvantes pour fluides de forage | |
US5830830A (en) | Use of acetal-containing mixtures | |
EP0731827A1 (fr) | Fluide de forage | |
US4719029A (en) | Soluble oil emulsifier with bioresistance | |
JP2896199B2 (ja) | 掘削用流動体 | |
SU1730120A1 (ru) | Состав дл промывки и освоени скважины | |
RU2074887C1 (ru) | Тормозная жидкость |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): NO US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
ENP | Entry into the national phase |
Ref country code: US Ref document number: 1994 284700 Date of ref document: 19940812 Kind code of ref document: A Format of ref document f/p: F |
|
122 | Ep: pct application non-entry in european phase |