EP2247689A1 - Additif pour cimenter des trous de forage - Google Patents
Additif pour cimenter des trous de forageInfo
- Publication number
- EP2247689A1 EP2247689A1 EP09711767A EP09711767A EP2247689A1 EP 2247689 A1 EP2247689 A1 EP 2247689A1 EP 09711767 A EP09711767 A EP 09711767A EP 09711767 A EP09711767 A EP 09711767A EP 2247689 A1 EP2247689 A1 EP 2247689A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- additive
- condensation product
- additive according
- polyethyleneimine
- formaldehyde
- 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.)
- Withdrawn
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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
- C09K8/467—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement containing additives for specific purposes
- C09K8/487—Fluid loss control additives; Additives for reducing or preventing circulation loss
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/12—Nitrogen containing compounds organic derivatives of hydrazine
- C04B24/125—Compounds containing one or more carbon-to-nitrogen double or triple bonds, e.g. imines
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/28—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
- C04B40/0042—Powdery mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/46—Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
Definitions
- the present invention is an additive based on a polyalkyleneimine and a sulfonated formaldehyde-containing condensation product and its use.
- polyalkyleneimines and in particular polyethyleneimine in building chemical compositions and especially as so-called fluid loss additive is well known.
- it is essential for achieving a sufficiently low fluid loss to use the respective polyalkyleneimine together with another component, since in particular the polyethyleneimine alone can not exert such an effect.
- a fluid loss additive is understood to be a chemical composition used to control the leakage of liquid and, in particular, aqueous fluids from subterranean formations in connection with the drilling of oil and gas deposits.
- This loss of fluid poses a serious problem, particularly in cementing wells, as the aqueous phase of drilling fluids can adversely affect the nature and behavior of the slurry as well as the setting behavior of the cementitious composition employed.
- the uncontrolled discharge of liquid into or out of the subterranean formation usually causes significant damage to the rock formations, with the result that their permeability changes dramatically negatively.
- U.S. Patent 3,491,049 describes the use of polyethyleneimine together with an anionic surfactant as a fluid loss additive.
- Sulfonated naphthalene is a typical representative of the surface-active substance used in this case.
- a fluid loss additive is a reaction product between a polyethyleneimine and a high molecular weight sulfonated polymer, which is preferably a sulfonated polystyrene according to US 4,469,518.
- Fluid loss additives based on polyethyleneimine can also be found in US Pat. Nos. 4,742,094 and 4,791,989. According to US Pat. No. 4,742,094, polyethyleneimine is used together with a sulfonated organic compound which is a lignosulphonate or a sulphonated naphthalene-formaldehyde condensate. The same composition is used in the method of cementing a well according to 4.791, 989. The use of a combination of polyethyleneimine, a sulfonated naphthalene / formaldehyde condensation product and an alkylbenzenesulfonate fluid loss additive is taught in US 5,340,860.
- polyethyleneimines having the general formula (C 2 H 5 N) n and having a preferred molecular weight M w of from 10,000 to 3,500,000 g / mol are particularly suitable.
- Molecular weights M w of from 1 000 000 to 3 000 000 g / mol and in particular from 1 500 000 to 2 500 000 g / mol are to be regarded as particularly advantageous.
- Additives in which the condensation product contains as ketone component at least one member of the mono- and diketones and preferably acetone, butanone, pentanone, hexanone and cyclic ketones such as cyclohexanone are considered to be preferred in the context of the present invention.
- Acetone / formaldehyde resins are particularly well suited.
- the additive according to the invention is not subject to any restriction with regard to the distribution of the components contained therein.
- the polyethyleneimine and the condensation product are present in a mass ratio of 20 to 1: 1, preferably 15 to 5: 1 and in particular 11 to 9: 1.
- the claimed additive can be varied in wide ranges, which applies in particular to the above-mentioned ketonic representatives.
- the condensation product is a mixture of at least one ketone / formaldehyde resin and a sulfonated naphthalene or melamine / formaldehyde condensation product and / or a polycarboxylate contained.
- the proportion of ketone / formaldehyde resin should be in a range of 40 to 90 wt .-%, with ranges of 50 to 80% and in particular 60 to 70 wt .-% are particularly suitable.
- the polycarboxylate ether component is preferably a co-polymer consisting of two monomer units, wherein the moiety a) is an olefinically unsaturated monocarboxylic acid comonomer or an ester or a salt thereof, or an olefinically unsaturated sulfuric acid co-monomer. Monomer or a salt thereof, and the unit b) a co-monomer of the general formula (I)
- R 2 is H or an aliphatic hydrocarbon radical having 1 to 5 C
- R 3 unsubstituted or substituted aryl radical and preferably phenyl
- R 4 H or an aliphatic hydrocarbon radical having 1 to 20 C atoms, a cycloalkenyl radical Liphatic hydrocarbon radical having 5 to 8 carbon atoms, a substituted aryl radical having 6 to 14 carbon atoms or a member of the series
- the additive according to the present invention should be present as a dry mixture or as an aqueous solution.
- it may contain as further component a defoamer (such as tributyl phosphate, representatives based on mineral oil or silicone, silicone-free polymers), but also other common additives in the oil field field, such as rheology modifiers.
- the present invention also claims its use in the field of development, exploitation and completion of underground oil and gas deposits.
- its use as a fluid-loss additive in the cementation of boreholes in the oil and gas sector and in deep drilling is in the foreground.
- the additive should preferably be added to the cementitious dry mix and / or the mixing water.
- the additive develops its fluid-loss effect in a particularly significant manner when it is subjected to ripening prior to its addition to the cementitious dry mix and / or the mixing water.
- the present invention provides, in particular, for allowing to stand for an extended period of time.
- the additive when the additive is over a period of at least 12 hours, preferably at least 48 hours, more preferably at least 10 days, and most preferably at least 30 days, it develops during its application a particularly pronounced low fluid loss in the respective subterranean formations.
- the claimed additive brings about a particularly good water retention capacity if the two main components, namely the polyalkyleneimine and the ketone / formaldehyde condensation product, are formulated before mixing into the cement slurry and then rest for some time.
- the additive according to the invention is ideally prepared in a first step in the form of a mixture of the two components polyethyleneimine and condensation product as aqueous solution, before this solution, after a longer service life, finally in the second step with the cementitious mixture, optionally the defoamer and other additives, as well as the remaining mixing water mixed.
- the additive according to the invention is ideally prepared in a first step in the form of a mixture of the two components polyethyleneimine and condensation product as aqueous solution, before this solution, after a longer service life, finally in the second step with the cementitious mixture, optionally the defoamer and other additives, as well as the remaining mixing water mixed.
- an increasingly low fluid loss is found in practical use.
- the present invention also takes into account a variant of use in which the ripening takes place in aqueous solution, and preferably in at least 10%, and more preferably in at least 20%, aqueous solution.
- This example illustrates that the manner of mixing the cement slurry has a significant impact on the fluid loss reducing properties of the additive of the present invention.
- the powdered acetone-formaldehyde-sulfite condensate was first dry-mixed with the cement, as described in the general practice, and then mixed with the mixing water which already contained the liquid components polyethyleneimine (PEI) and tributyl phosphate. There was a significantly lower, but still relatively high, fluid loss of 332 ml compared to the prior art.
- the inventive additive mixture of the two components polyethyleneimine (PEI) and acetone-formaldehyde-sulfite condensate (AFS) was prepared as an aqueous solution.
- this solution was stirred with the cement, the defoamer and the remaining mixing water. Following this procedure, a significantly lower fluid loss of 70 ml was measured. In addition, as shown in the following table, a significant influence of the lifetime of this additive solution before its addition to the cement on the effect as a fluid-loss additive is observed:
- formulation 1 has improved properties compared to the combinations of polyethyleneimine with other sulfonated polymers or flow agents (comparative formulations 2, 3, 4):
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
L'invention concerne un additif à base d'une polyalkylène-imine et d'un produit de condensation contenant du formaldéhyde sulfoné, et son utilisation comme réducteur de filtrat pour la cimentation de trous de forage de pétrole et de gaz naturel. Des représentants typiques des polyalkylène-imines sont ici la polyéthylène-imine, la polypropylène-imine et la polybutylène-imine, ainsi que leurs dérivés. Les résines acétone/formaldéhyde constituent des produits de condensation privilégiés. De tels additifs selon l'invention, qui peuvent être soumis avant leur utilisation à une maturation notamment en les laissant reposer, permettent d'obtenir une perte de fluide particulièrement faible.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008010795A DE102008010795A1 (de) | 2008-02-23 | 2008-02-23 | Additiv zum Zementieren von Bohrlöchern |
| PCT/EP2009/050551 WO2009103579A1 (fr) | 2008-02-23 | 2009-01-19 | Additif pour cimenter des trous de forage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2247689A1 true EP2247689A1 (fr) | 2010-11-10 |
Family
ID=40600070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09711767A Withdrawn EP2247689A1 (fr) | 2008-02-23 | 2009-01-19 | Additif pour cimenter des trous de forage |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US8470907B2 (fr) |
| EP (1) | EP2247689A1 (fr) |
| CN (1) | CN101952387A (fr) |
| BR (1) | BRPI0907850A2 (fr) |
| CA (1) | CA2715588C (fr) |
| DE (1) | DE102008010795A1 (fr) |
| MX (1) | MX2010009247A (fr) |
| RU (1) | RU2490294C2 (fr) |
| WO (1) | WO2009103579A1 (fr) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603969B (zh) * | 2011-10-17 | 2016-09-28 | 中国石油化工股份有限公司 | 一种胶结性凝胶堵漏剂及其制备方法 |
| CN103509535B (zh) * | 2012-06-29 | 2016-12-21 | 中国石油化工股份有限公司 | 水基钻井液的降滤失方法及降滤失剂的制备方法 |
| EP2899171A1 (fr) | 2014-01-22 | 2015-07-29 | Construction Research & Technology GmbH | Additif pour liants hydrauliques |
| EP2876094A1 (fr) | 2014-04-03 | 2015-05-27 | Basf Se | Ciment et composition de liant à base de sulfate de calcium |
| CN105086968B (zh) * | 2015-08-25 | 2018-08-17 | 中国石油集团渤海钻探工程有限公司 | 固井用先导浆相容剂及其制备方法 |
| BR112018012250B1 (pt) | 2015-12-17 | 2022-03-29 | Construction Research & Technology Gmbh | Policondensado, processo para produção de um policondensado, mistura de material de construção, e, uso de policondensados |
| PL3468934T3 (pl) | 2016-06-09 | 2020-11-16 | Basf Se | Budowlane kompozycje chemiczne zawierające addukt wodorosiarczynowy kwasu glioksalowego |
| AU2017278398B2 (en) | 2016-06-09 | 2021-11-25 | Basf Se | Hydration control mixture for mortar and cement compositions |
| ES2911232T3 (es) | 2017-10-20 | 2022-05-18 | Construction Research & Technology Gmbh | Composición de control de fraguado para sistemas cementosos |
| EP3931167A1 (fr) | 2019-02-27 | 2022-01-05 | Basf Se | Mélange comprenant de l'acide glyoxylique ou ses produits de condensation ou d'addition |
| EA202192823A1 (ru) | 2019-04-18 | 2022-03-02 | Констракшн Рисёрч Энд Текнолоджи Гмбх | Состав торкрет-бетона |
| EP3976551A1 (fr) | 2019-06-03 | 2022-04-06 | Basf Se | Utilisatoin d'un kit additif dans l'impression 3d d'une composition de matériau de construction |
| WO2021185718A1 (fr) | 2020-03-20 | 2021-09-23 | Basf Se | Compositions de matériau de construction écologiques ayant une résistance initiale améliorée |
| EP4168370B1 (fr) | 2020-06-18 | 2024-06-26 | Basf Se | Mélange régulateur d'hydratation pour compositions de mortier et de ciment |
| MX2023002358A (es) | 2020-08-26 | 2023-04-04 | Construction Research & Technology Gmbh | Composicion de control de fraguado para sistemas cementosos. |
| AU2021331399B2 (en) | 2020-08-26 | 2025-11-20 | Construction Research & Technology Gmbh | Cement-reduced construction composition |
| BR112023003032A2 (pt) | 2020-08-26 | 2023-04-11 | Construction Research & Technology Gmbh | Composições de construção e de controle de pega |
| CN116018328A (zh) | 2020-08-26 | 2023-04-25 | 建筑研究和技术有限公司 | 石灰石煅烧粘土水泥(lc3)建筑组合物 |
| EP4347529A1 (fr) | 2021-05-27 | 2024-04-10 | Basf Se | Composition de dispersion comprenant une pâte de scellement à base de ciment et un mélange d'additifs |
| ES3031868T3 (en) | 2021-06-22 | 2025-07-11 | Construction Research & Technology Gmbh | Cement dispersant comprising a naphthalenesulfonic acid polycondensate and at least one of a phosphorylated polycondensate and a polycarboxylate ether, and construction composition |
| AU2022300302A1 (en) | 2021-06-22 | 2023-12-14 | Construction Research & Technology Gmbh | Use of a naphthalenesulfonic acid polycondensate as a plasticizer in a construction composition and construction composition |
| JP2024536208A (ja) | 2021-09-29 | 2024-10-04 | コンストラクション リサーチ アンド テクノロジー ゲーエムベーハー | セメント質系用の凝結制御組成物 |
| MX2024008129A (es) | 2021-12-28 | 2024-07-10 | Construction Research & Technology Gmbh | Composicion de aditivos o sellado para composiciones cementosas, composicion cementosa, metodo de fabricacion de la misma, y metodos de preparacion de una estructura cementosa y de tratamiento de una superficie de la misma. |
| CA3255910A1 (fr) | 2022-04-21 | 2023-10-26 | Construction Research & Technology Gmbh | Procédé pour la préparation d'une composition de germes de silicate de calcium hydraté utile en tant qu'accélérateur de durcissement pour des compositions à base de ciment |
| EP4522577A1 (fr) | 2022-05-09 | 2025-03-19 | Basf Se | Composition de mortier sec contenant un sel métallique d'un polyol |
| EP4543822A1 (fr) | 2022-06-22 | 2025-04-30 | Construction Research & Technology GmbH | Composition d'accélérateur de durcissement pour compositions cimentaires, composition cimentaire et procédé pour l'accélération du durcissement d'une composition cimentaire |
| EP4438577A1 (fr) | 2023-03-28 | 2024-10-02 | Sika Technology AG | Mousse inorganique a base de ciment portland ordinaire |
| EP4516759A1 (fr) | 2023-09-01 | 2025-03-05 | Construction Research & Technology GmbH | Matériau de construction à faible empreinte carbone présentant des résistances précoces et tardives améliorées |
| WO2026012601A1 (fr) | 2024-07-12 | 2026-01-15 | Construction Research & Technology Gmbh | Procédé de placement d'un matériau de construction fluide pour impression de béton 3d |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491049A (en) | 1965-10-13 | 1970-01-20 | Dow Chemical Co | Low water-loss aqueous cement slurry and method of use |
| US3347789A (en) * | 1966-03-04 | 1967-10-17 | Petrolite Corp | Treatment of oil wells |
| US4469518A (en) | 1982-06-14 | 1984-09-04 | Hughes Tool Company | Fluid loss additive |
| US4482381A (en) * | 1982-06-21 | 1984-11-13 | Cordova Chemical Company Of Michigan | Solid polyamine-based fluid loss control additives |
| US4482383A (en) * | 1983-06-09 | 1984-11-13 | Hughes Tool Company | Polyamine fluid loss additive for oil well cements |
| US4791989A (en) | 1986-09-25 | 1988-12-20 | Halliburton Company | Low fluid loss salt saturated cement slurries, additives and methods |
| US4742094A (en) | 1986-09-25 | 1988-05-03 | Halliburton Company | Low fluid loss salt saturated cement slurries, additives and methods |
| US4773482A (en) * | 1987-06-01 | 1988-09-27 | Conoco Inc. | Reducing permeability of highly permeable zones in oil and gas formations |
| DE3825530A1 (de) * | 1987-08-07 | 1989-02-16 | Sueddeutsche Kalkstickstoff | Retentionsmittel fuer waessrige systeme |
| EP0444542B1 (fr) * | 1990-03-02 | 1993-10-20 | BASF Corporation | Compositions de ciments contenant des dérivés de polyethylèneiminephosphonate comme agent dispersant |
| US5389706A (en) * | 1992-10-09 | 1995-02-14 | Halliburton Company | Well cement compositions having improved properties and methods |
| US5340860A (en) | 1992-10-30 | 1994-08-23 | Halliburton Company | Low fluid loss cement compositions, fluid loss reducing additives and methods |
| AU9585698A (en) * | 1997-09-30 | 1999-04-23 | Bj Services Company | Multi-functional additive for use in well cementing |
| US7226971B2 (en) * | 2000-12-22 | 2007-06-05 | Basf Corporation | Polyester resin with carbamate functionality, a method of preparing the resin, and a coating composition utilizing the resin |
| EP1411085B1 (fr) * | 2001-06-28 | 2006-11-02 | Daikin Industries, Ltd. | Compositions de resine en emulsion aqueuse |
| US6616753B2 (en) * | 2001-12-11 | 2003-09-09 | Halliburton Energy Services, Inc. | Methods and compositions for sealing subterranean zones |
| MXPA05011935A (es) * | 2003-05-09 | 2006-05-31 | Prometheus Developments Ltd | Un metodo para producir material polimerico. |
| US7488705B2 (en) * | 2004-12-08 | 2009-02-10 | Halliburton Energy Services, Inc. | Oilwell sealant compositions comprising alkali swellable latex |
| DE102006047091A1 (de) * | 2006-10-05 | 2008-04-10 | Basf Construction Polymers Gmbh | Neue Zusammensetzung auf Polyvinylalkohol-Basis |
| US8088261B2 (en) * | 2007-05-15 | 2012-01-03 | Gas Technology Institute | CuC1 thermochemical cycle for hydrogen production |
-
2008
- 2008-02-23 DE DE102008010795A patent/DE102008010795A1/de not_active Withdrawn
-
2009
- 2009-01-19 CN CN2009801060613A patent/CN101952387A/zh active Pending
- 2009-01-19 CA CA2715588A patent/CA2715588C/fr not_active Expired - Fee Related
- 2009-01-19 MX MX2010009247A patent/MX2010009247A/es unknown
- 2009-01-19 BR BRPI0907850-9A patent/BRPI0907850A2/pt not_active IP Right Cessation
- 2009-01-19 WO PCT/EP2009/050551 patent/WO2009103579A1/fr not_active Ceased
- 2009-01-19 RU RU2010138837/03A patent/RU2490294C2/ru not_active IP Right Cessation
- 2009-01-19 EP EP09711767A patent/EP2247689A1/fr not_active Withdrawn
- 2009-01-19 US US12/812,087 patent/US8470907B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009103579A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2715588A1 (fr) | 2009-08-27 |
| CN101952387A (zh) | 2011-01-19 |
| US8470907B2 (en) | 2013-06-25 |
| CA2715588C (fr) | 2012-08-21 |
| WO2009103579A1 (fr) | 2009-08-27 |
| MX2010009247A (es) | 2010-09-10 |
| BRPI0907850A2 (pt) | 2015-07-21 |
| RU2010138837A (ru) | 2012-03-27 |
| DE102008010795A1 (de) | 2009-08-27 |
| RU2490294C2 (ru) | 2013-08-20 |
| US20100317764A1 (en) | 2010-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2247689A1 (fr) | Additif pour cimenter des trous de forage | |
| EP0146078B1 (fr) | Agent de dispersion pour systèmes salins | |
| DE69802790T2 (de) | Zementzusammensetzungen und verfahren zu ihrer verwendung in unterirdischen bohrlöchern | |
| DE69413647T2 (de) | Zusatz für Trefbohrzement | |
| DE69915803T2 (de) | Universelle zusatzstoffe für bohrlochzemente und verfahren | |
| DE69214360T2 (de) | Thixotrope Bohrloch-Zementierungszusammensetzung | |
| DE60109013T2 (de) | Flüssigkeitsverlust kontrollierendes Zusatzmittel für Bohrlochzement | |
| DE69314540T2 (de) | Additive Zusammenstellung für Bohrlochzementierungszusammensetzungen | |
| DE2007603C3 (de) | Zusatzmittel für hydraulische Zementmischungen und Verfahren zur Herstellung einer leicht dispergierbaren hydraulischen Zementmischung | |
| EP0708746B1 (fr) | Polymeres greffes de produits de condensation cetone-aldehyde ou de produits de co-condensation | |
| DE102005060947A1 (de) | Pulverförmige Polykondensationsprodukte | |
| DE102004050395A1 (de) | Polykondensationsprodukt auf Basis von aromatischen oder heteroaromatischen Verbindungen, Verfahren zu seiner Herstellung und dessen Verwendung | |
| EP2344566A1 (fr) | Procédé de fabrication de produits de polycondensation phosphatés et leur utilisation | |
| DE2010763A1 (de) | Kationische synthetische Kautschuklatexe und Verfahren zu deren Herstellung | |
| CH686186A5 (de) | Neue Verflussiger und Verfahren zu ihrer Herstellung. | |
| EP2066596A1 (fr) | Utilisation d'une composition à base d'alcool polyvinylique | |
| EP2679613A1 (fr) | Additif compatible avec l'argile pour produits de chimie de construction | |
| EP0176673B1 (fr) | Composés métalliques de produits de condensation ou co-condensation de cétanes et aldéhydes, contenant des groupes acides | |
| DE3200960C2 (de) | Bohrspülung und Verfahren zum Spülen eines Bohrlochs | |
| DE3315152A1 (de) | Co-kondensationsprodukte von keton-aldehyd-harzen | |
| DE102008063096A1 (de) | Verwendung von Vinylphosphonsäure zur Herstellung biologisch abbaubarer Mischpolymere und deren Verwendung für die Exploration und Förderung von Erdöl und Erdgas | |
| DE69100517T2 (de) | Polyethyleneiminphosphonatderivate als Dispergiermittel enthaltende Zementzusammensetzungen. | |
| DE3410820C2 (fr) | ||
| WO2014060352A1 (fr) | Entraîneur d'air pour systèmes à base de ciment | |
| EP0147554B1 (fr) | Emulsion contenant une résine époxyde et un sel d'ammonium ainsi que son procédé de préparation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20100923 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20120319 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20140423 |