EP2539385A1 - Composés amphiphiles macromoléculaires en tant qu'agents de rétention d'eau pour des systèmes chimiques de construction, en particulier pour la cimentation des trous de forage - Google Patents

Composés amphiphiles macromoléculaires en tant qu'agents de rétention d'eau pour des systèmes chimiques de construction, en particulier pour la cimentation des trous de forage

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Publication number
EP2539385A1
EP2539385A1 EP11701137A EP11701137A EP2539385A1 EP 2539385 A1 EP2539385 A1 EP 2539385A1 EP 11701137 A EP11701137 A EP 11701137A EP 11701137 A EP11701137 A EP 11701137A EP 2539385 A1 EP2539385 A1 EP 2539385A1
Authority
EP
European Patent Office
Prior art keywords
water retention
retention agent
macromolecular
water
reactive
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Withdrawn
Application number
EP11701137A
Other languages
German (de)
English (en)
Inventor
Yulia Fogel
Mario Vierle
Andrea Assmann
Mathias Bauer
Gerhard Albrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Priority to EP11701137A priority Critical patent/EP2539385A1/fr
Publication of EP2539385A1 publication Critical patent/EP2539385A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805—Compounds having only one group containing active hydrogen
    • C08G18/2815—Monohydroxy compounds
    • C08G18/283—Compounds containing ether groups, e.g. oxyalkylated monohydroxy compounds
    • 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
    • C04B24/282—Polyurethanes; Polyisocyanates
    • 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
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805—Compounds having only one group containing active hydrogen
    • C08G18/285—Nitrogen containing compounds
    • C08G18/2865—Compounds having only one primary or secondary amino group; Ammonia
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/791—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups
    • C08G18/792—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing isocyanurate groups formed by oligomerisation of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates
    • 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
    • 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

  • Macromolecular, amphiphilic compounds as water retention agents for construction chemical systems, in particular for well cementing
  • the present invention relates to a water retention agent for construction chemical systems, a process for the preparation of a suitable as water retention agent macro-molecular, amphiphilic compound, the use of this compound as a water retention agent in construction chemical systems and in the development, exploitation and completion of underground oil and gas deposits and deep drilling , a building material mixture containing this compound, a Baustoffrezeptur containing water and said building material mixture, and a building made using this Baustofempfzeptur.
  • Water retention agents or fluid loss additives have the task of reducing the release of water from a cement slurry. This is of particular importance in the field of oil and natural gas exploration, as cement slurries consisting essentially of cement and water are pumped through the annulus between the so-called casing and the borehole wall during the cementing of the boreholes. In this case, quantities of water can be released from the cement slurry to the subsoil formation. This is particularly the case when the cement slurry flows past porous rock layers during well cementing. The alkalized water originating from the cement slurry can then swell clays in the formations and form calcium carbonate precipitates with carbon dioxide from the natural gas or petroleum. These effects reduce the permeability of the deposits and, as a consequence, the production rates are negatively affected.
  • cement slurries solidify by the discharge of water to the porous subsoil formations no longer homogeneous and thereby permeable to gases and liquid hydrocarbons and water. As a result, this leads to the escape of fossil fuels through the filled with porous cement annulus.
  • Borehole cementing and a composition suitable for this purpose is the subject of EP 1 375 818 A1.
  • a polymer additive is used which in addition to AMPS additionally contains maleic acid, N-vinylcaprolactam and 4-hydroxybutyl vinyl ether.
  • copolymer also based on AMPS and partially hydrolyzed acrylamide is a copolymer according to US 4,015,991.
  • the copolymer described in this patent is also intended to improve the water retention capacity in cementitious compositions.
  • the primary field of application is the cementing of boreholes.
  • the US patents listed below also relate to compounds having water retention properties.
  • the water-soluble copolymers according to US Pat. No. 6,395,853 B1 contain inter alia. Acrylamides and AMPS.
  • At the forefront of this right is a process for reducing the loss of water in a slurry used for the extraction of petroleum.
  • Particularly well-known in this context are the well cementing and completion as well as the wellbore sludge preceding these process steps.
  • US 4,700,780 is a method of reducing water loss in cementitious compositions which also include defined salt concentrations.
  • the water retention agent is again a polymer or polymer salt of AMPS, in which case the building blocks styrene and acrylic acid still have to be present.
  • This variety of known co- or graft polymers as already briefly mentioned, depending on their monomer composition, each have a different property profile with specific advantages and disadvantages.
  • a common weakness inherent in most of these ionic polymers is that their water retention action is in the presence of divalent salts, such as those typically found in seawater, which are often used to agglomerate cement slurries in offshore oil and gas wells, and / or or at high temperatures above about 90 ° C, whereby a total loss of efficiency may occur.
  • divalent salts such as those typically found in seawater
  • attempts have long been made intensively to provide new molecules or polymers whose water retention capacity is stable, in particular in the field of oil and gas exploration, so that an advantageous price / performance ratio can be assumed.
  • salt and temperature resistance still require improvement in specific applications, the object of the present invention is essentially to provide novel molecules which are based on proven components and show significant improvements, especially in the presence of divalent salts and at high temperatures ,
  • the macromolecular amphiphilic, uncharged compounds according to the invention in these applications have virtually identical water retention properties as currently commercially available reference patterns, but do not exert any adverse effect on the rheology of the sludges. Furthermore, excellent temperature stability was found, which ensures effectiveness of the water retention agents over a wide temperature range. As uncharged molecules, these compounds are not subject to interaction with salts of divalent metals.
  • An object of the present invention is a water retention agent for construction chemical systems comprising at least one macromolecular, amphiphilic compound having structural units of type A, D and E and at least one DEA sequence in the molecule, obtainable by reaction of reactive isocyanate groups with
  • E represents a structural unit derived from a polyisocyanate having at least two reactive isocyanate groups
  • D represents a structural unit derived from a hydrophobic compound having at least one isocyanate-reactive group selected from -OH, -NH 2, -COOH, -NH-R * , where R * is a branched or unbranched C 2-8 alkyl group ( preferably ethyl, propyl, butyl, hexyl, (2-ethyl) hexyl, heptyl, octyl, decyl, tridecyl, octadecyl or cyclohexyl), and
  • A represents a structural unit derived from a hydrophilic compound having at least one isocyanate-reactive group selected from -OH, -IM H2, -COOH.
  • the macromolecular, amphiphilic compound contains 3 to 10 independently selected structural units of the type A, D and E in the molecule.
  • those compounds are to be understood which have a water solubility (at atmospheric pressure) of less than 1 g / liter of water, preferably less than 0.3 g / liter of water at a temperature of 20 ° C.
  • those compounds are considered to be hydrophilic which have a water solubility (at atmospheric pressure) of more than 10 g / liter of water, preferably of more than 30 g / liter of water, at a temperature of 20 ° C.
  • the macromolecular, amphiphilic compound is in accordance with one of the structural types
  • the type A structural units bridging type E structural units contain ether groups and the compounds from which they are derived have molecular weights of from 400 to 15,000, preferably from 1,000 to 5,000 g / mol.
  • the structural unit A is preferably derived from a polyethylene glycol or methylpolyethylene glycol or a (block / stat) copoly (ethylene / propylene) glycol or its monomethyl ether having a water solubility at 20 ° C. of at least 10 g of water.
  • the structural unit D is preferably derived from a polyisobuteneamine and / or from polyisobutene-succinic acid or its anhydride.
  • the structural unit E is derived from a trimeric polyisocyanate containing three reactive isocyanate groups, such as, for example, trimeric hexamethylene diisocyanate.
  • the macromolecular, amphiphilic compound preferably has a molecular weight of from 1000 to 100,000, particularly preferably from 5000 to 50,000 and in particular from 10,000 to 30,000 g / mol.
  • the water retention agent according to the invention is preferably used in the form of an aqueous emulsion with more than 30% by weight solids content. But even with a use in "dry form” would have to be expected with a residual moisture content of a few percent.
  • the water retention agent comprises 31-99% by weight of the (at least one) macromolecular amphiphilic compound and 69-1% by weight of water.
  • the at least one macromolecular, amphiphilic compound is intended to express that mixtures of various macromolecular, amphiphilic compounds, each of which is individually covered by the above definitions, can also be present in the water retention agent in the meaning of the present invention. Below is to be explained in more detail, from which chemical compounds the structural units A, E and D can be derived:
  • R ' 1 -H or a linear or branched and optionally unsaturated aliphatic hydrocarbon radical having 1 to 12 C atoms and
  • a 'and b' are chosen as a function of the molecular weight so that the polyalkylene oxide compound at 20 ° C has a water solubility of at least 10 g / l.
  • the ethylene or propylene units may be distributed in blocks or randomly.
  • a ' is between 20 and 200, particularly preferably between 20 and 150, and b' is between 0 and 20, more preferably between 0 and 10.
  • Particularly preferred are methyl polyethylene oxides which are commercially available, for example, under the trade names Polyglycol M or Pluriol® A are available.
  • polyoxyalkylene compounds of the formula (I'b) and / or (I'c) are suitable:
  • R ' 2 -H, -CH 3 ,
  • Polyisobutenes can be prepared. Polyisobuteneamines, polyisobutene succinates and polyisobutenephenols are suitable here. These functionalized
  • Polyisobutenes are commercially available, for example, under the name Kerocom® PIBA (polyisobuteneamine) and Glissopal® SA (polyisobutene succinate). Preference is given to using polyisobutene-amine or polyisobutene-succinic acid, particularly preferably having an average molar mass of from 300 to 3000 g / mol.
  • Alkylpolyoxyalkylene derivatives such as methylpolypropylene glycols having average molecular weights> 800 g / mol and analogous Butylpolyoxypropylenderivate. Furthermore, Methylpolyalkoxylenderivate have proven, which are composed of polyoxyethylene and Polyoxypropy- lenechen which may be arranged randomly or in blocks. The molar ratio of oxyethylene to oxypropylene units is chosen the resulting alkyl polyoxyalkylene glycols have a water solubility of less than 1 g / l at 20 ° C.
  • Butene tetramer derivatives which can be obtained by functionalization of tetrameric butene.
  • tetrambutylsuccinic acid, tetramerbutenol and tetramerbutene diol are used, more preferably tetramerbutenol.
  • Fatty acids or fatty acid mixtures such as tall oil fatty acid, stearic acid, palmitic acid, sunflower oil fatty acid, coconut oil fatty acid (Ce-ie), coconut oil fatty acid (C12-18), soybean oil fatty acid, linseed oil fatty acid, dodecanoic acid, oleic acid, linoleic acid,
  • Palm kernel oil fatty acid, palm oil fatty acid, linolenic acid and / or arachidonic acid are considered to be preferred.
  • Low water-soluble or water-insoluble alkyl alcohols from the group of Ce-28 alcohols such as, for example, eicosanol, 1-octadecanol, 1-hexadecanol, 1-tetradecanol, 1-dodecanol, 1-decanol, 1-octanol and 1-hexanol, where 1-octanol and 1-cancanol and 1 -dodecanol are to be regarded as preferred.
  • N-alkylamines for example N-butylamine, N-pentylamine, N-hexylamine, N-octylamine, N-decylamine, and N-tridecylamine. Preference is given to using N-hexylamine and N-octylamine.
  • ⁇ , ⁇ -dialkylamines such as N, N-ethylhexylamine, ⁇ , ⁇ -dibutylamine, N, N-dipentylamine, ⁇ , ⁇ -dihexylamine, N, N-dioctylamine, N, N- (2 ethylhexyl) amine, N-methyl-N-octadecylamine and N, N-didecylamine.
  • ⁇ , ⁇ -ethylhexylamine and ⁇ , ⁇ -dipentylamine are preferred.
  • lacquer polyisocyanates known to those skilled polyfunctional isocyanates based on bis (4-isocyanatocyclohexyl) methane (H12MDI), 1, 6-diisocyanatohexane (HDI), 1-isocyanato-5-isocyanatomethyl-3,3 , 5-trimethyl-cyclohexane (IPDI) used.
  • Modified polyisocyanates which are accessible for example by hydrophilic modification of "paint polyisocyanates” based on 1, 6-diisocyanatohexane (HDI).
  • aliphatic polyisocyanate compounds 1-isocyanato-5-isocyanatomethyl-3,3,5-trimethyl-cyclohexane (IPDI), bis (4-isocyanato-cyclohexyl) -methane (H12MDI), 1, 3-bis- (1-isocyanato-1-methyl-ethyl) -benzene (m-TMXDI), 1, 6-diisocyanatohexane (HDI), and its higher homologues or technical isomer mixtures of the individual aliphatic polyisocyanates used, while from the group of aromatic polyisocyanates in particular 2,4-diisocyanatotoluene (TDI), bis (4-isocyanatophenyl) -methane (MDI) and optionally its higher homologs (polymer MDI) or technical isomer mixtures of the individual aromatic polyisocyanates are preferably used. Particular preference is given to using HDI trimers which
  • Another object of the present invention is a process for preparing a macromolecular, amphiphilic compound suitable as a water retention agent as defined above, characterized in that a polyisocyanate having at least two reactive isocyanate groups, a hydrophobic compound having at least one isocyanate-reactive group selected from -OH , -NH2, -COOH, -NH-R * , where R * represents a branched or unbranched C2-28-alkyl group, and a hydrophilic compound having at least one isocyanate-reactive group, selected from -OH, -NH2, - COOH, are reacted with the proviso that the reaction of the components by reaction of the reactive isocyanate groups with the isocyanate-reactive groups takes place.
  • This preparation can be carried out in such a way that initially the individual component corresponding to the structural unit E is reacted with the individual component corresponding to the structural unit A and the reaction product obtained is then reacted with the zelkomponente corresponding to the structural unit D is implemented. Alternatively, however, it is also possible first to react E with D and then to react the reaction product with A.
  • the polyisocyanate compound is used in such an amount that - the NCO ⁇ equivalent ratio with respect to the free isocyanate-reactive groups ⁇ in the reaction product of isocyanate component corresponding to E and the reactive component corresponding to A 1, 0 to 3.0 is the NCO Equivalent ratio with respect to the free isocyanate-reactive groups ⁇ in the reaction product with the reactive component corresponding to D is 0.3 to 2.0
  • the NCO ⁇ equivalent ratio with respect to the free isocyanate-reactive groups ⁇ in the reaction product of isocyanate component corresponding to E and the reactive component corresponding to D 1, 0 to 3.0 is - the NCO ⁇ equivalent ratio with respect to the free isocyanate-reactive groups ⁇ in the reaction product the reactive component corresponding to A is 0.5 to 2.0
  • the reaction can also be carried out as follows:
  • the reaction of the isocyanate component corresponding to E with the reactive component corresponding to A and / or D takes place at temperatures of 20 to 150 ° C, wherein the reaction can optionally take place in the presence of a catalyst.
  • a catalyst such as dibutyltin dilaurate (T12-DBTL).
  • the macromolecular, amphiphilic compound contains at least two structural units of the type A, D and / or E in the molecule, it can be said that A, D, and / or E can each be identical or different.
  • the macromolecular, amphiphilic compound as defined above shows excellent activity as a water retention agent.
  • another object of the present invention is the use of this compound as a water retention agent in construction chemical systems and in the development, exploitation and completion of underground oil and gas deposits and deep drilling.
  • the said compound is preferably used as an additive for inorganic, in particular hydraulic, binders, in particular in the offshore sector.
  • Another object of the present invention is a building material mixture containing 31 to 98 wt .-% of an inorganic binder, 0 to 68 wt .-% aggregate and 0.005 to 5 wt .-%, in particular 0.05 to 1 wt .-%, the macromolecular, amphiphilic compound as defined above.
  • the inorganic binder is preferably present as a cement.
  • the supplement is preferably in the form of sand, gravel and / or stones.
  • Another object of the present invention is a Baustofempfzeptur containing water and the said building material mixture, preferably in the form of a cement slurry, in particular with a water / cement value of 0.4 to 0.6.
  • the proposed macromolecular, amphiphilic compound is outstandingly useful as a water retention agent, particularly due to the low impact on the rheology of the well cement slurries and the significantly increased temperature stability in the range above about 90 ° C and its insensitivity to salts of divalent metals suitable is.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention concerne des agents de rétention d'eau qui conviennent parfaitement en tant qu'additifs dans des systèmes chimiques de construction et pour l'aménagement, l'exploitation et l'achèvement de gisements souterrains de pétrole et de gaz naturel ainsi que dans les trous de forage profonds, leur action étant particulièrement avantageuse en cas d'augmentation des températures ainsi qu'en raison de leur absence d'influence sur les propriétés rhéologiques des boues de forage.
EP11701137A 2010-02-24 2011-01-27 Composés amphiphiles macromoléculaires en tant qu'agents de rétention d'eau pour des systèmes chimiques de construction, en particulier pour la cimentation des trous de forage Withdrawn EP2539385A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11701137A EP2539385A1 (fr) 2010-02-24 2011-01-27 Composés amphiphiles macromoléculaires en tant qu'agents de rétention d'eau pour des systèmes chimiques de construction, en particulier pour la cimentation des trous de forage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10154503 2010-02-24
EP11701137A EP2539385A1 (fr) 2010-02-24 2011-01-27 Composés amphiphiles macromoléculaires en tant qu'agents de rétention d'eau pour des systèmes chimiques de construction, en particulier pour la cimentation des trous de forage
PCT/EP2011/051127 WO2011104061A1 (fr) 2010-02-24 2011-01-27 Composés amphiphiles macromoléculaires en tant qu'agents de rétention d'eau pour des systèmes chimiques de construction, en particulier pour la cimentation des trous de forage

Publications (1)

Publication Number Publication Date
EP2539385A1 true EP2539385A1 (fr) 2013-01-02

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Country Status (7)

Country Link
EP (1) EP2539385A1 (fr)
CN (1) CN102762624A (fr)
AU (1) AU2011220013B2 (fr)
CA (1) CA2786829A1 (fr)
EA (1) EA201201172A1 (fr)
MX (1) MX2012009677A (fr)
WO (1) WO2011104061A1 (fr)

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US10000686B2 (en) * 2013-12-18 2018-06-19 Covestro Llc Methods for treating a well bore within an underground formation
CN108046694A (zh) * 2017-12-07 2018-05-18 卫辉市化工有限公司 一种适用于页岩气固井的防气窜水泥浆体系及其制备方法

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AU2011220013B2 (en) 2014-04-10
MX2012009677A (es) 2012-09-07
CA2786829A1 (fr) 2011-09-01
EA201201172A1 (ru) 2013-04-30
CN102762624A (zh) 2012-10-31
AU2011220013A1 (en) 2012-08-23
WO2011104061A1 (fr) 2011-09-01

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