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WO2003087010A1 - Ciments contenant des mineraux a haute teneur en silice pour la cimentation de puits - Google Patents

Ciments contenant des mineraux a haute teneur en silice pour la cimentation de puits Download PDF

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Publication number
WO2003087010A1
WO2003087010A1 PCT/EP2003/050103 EP0350103W WO03087010A1 WO 2003087010 A1 WO2003087010 A1 WO 2003087010A1 EP 0350103 W EP0350103 W EP 0350103W WO 03087010 A1 WO03087010 A1 WO 03087010A1
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WO
WIPO (PCT)
Prior art keywords
cement
silica
blend
slurry
portland cement
Prior art date
Application number
PCT/EP2003/050103
Other languages
English (en)
Inventor
Bruno Drochon
Michel Michaux
Original Assignee
Services Petroliers Schlumberger
Schlumberger Holdings Limited
Schlumberger Canada Limited
Schlumberger Technology B.V.
Sofitech N.V.
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
Priority claimed from GB0208774A external-priority patent/GB2387593A/en
Priority claimed from GB0208775A external-priority patent/GB2387613A/en
Application filed by Services Petroliers Schlumberger, Schlumberger Holdings Limited, Schlumberger Canada Limited, Schlumberger Technology B.V., Sofitech N.V. filed Critical Services Petroliers Schlumberger
Priority to AU2003227758A priority Critical patent/AU2003227758A1/en
Publication of WO2003087010A1 publication Critical patent/WO2003087010A1/fr

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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
    • 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
    • C04B28/04—Portland cements
    • 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
    • C04B28/08—Slag cements
    • 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
    • C09K8/473—Density reducing additives, e.g. for obtaining foamed cement compositions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Definitions

  • the present invention relates to the use of cement blends containing Portland cement and minerals having a high silica content for the cementing of wells such as oil, gas, water or geothermal wells, and in particular to cementing such wells at high temperatures.
  • Oil well cements are typically manufactured to comply with the American Petroleum Institute specification 10 which specifies chemical and physical parameters to which the cement must adhere. These parameters include compositional requirements and physical limits such as fineness.
  • API Class G oil well cement is defined as a basic cement in which no additives are interground or blended during manufacture. As manufactured it is considered appropriate for use from surface to 8000 ft (2440m) depth, or can be used with chemical admixtures to cover a wider range of temperatures and depths.
  • oil well cements The basic chemistry of oil well cements is similar to that of construction cements but hydration generally occurs at a slower rate. Standard conditions for hydration reactions in actual wells are non existent (conditions vary from well to well and even within a single well), therefore the behaviour of oil well cement products depend on the particular conditions encountered which affect the reaction.
  • Oil well cements are often used with the addition of admixtures to obtain the required slurry properties, depending on the well conditions i.e. temperature and pressure.
  • admixtures are used in combination and include, for example, retarders, antifoam agents, dispersants and fluid loss controllers.
  • C- S-H gel Upon addition of water, the C 3 S and C 2 S phases hydrate to form a quasi-amorphous calcium silicate hydrate called "C- S-H gel," which is responsible for the strength and dimensional stability of the set cement at ordinary temperatures.
  • C-S-H gel a substantial amount of calcium hydroxide (CH) is liberated.
  • C-S-H gel is an excellent binding material at well temperatures less than about 110°C (230°F). At higher temperature, C-S-H gel is subject to metamorphosis, which results in decreased compressive strength and increased permeability of the set cement.
  • C-S-H gel converts to a phase called "alpha dicalcium silicate hydrate ( -C 2 SH)."
  • -C 2 SH is highly crystalline and much more dense than C-S-H gel.
  • shrinkage occurs which is deleterious to the integrity of the set cement. This phenomenon is known as "strength retrogression.”
  • the strength retrogression problem can be prevented by reducing the bulk lime-to- silica molar ratio (C/S molar ratio expressed as oxides) in the cement.
  • the typical C/S molar ratio of Portland cement is around 3.
  • the conversion of C-S-H gel into -C 2 SH at temperature above 110°C (230°F) can be prevented by the addition of 35% to 40% BWOC (By Weight Of Cement) of fine silica sand and/or silica flour, reducing the C/S molar ratio to about 1.0-1.2.
  • BWOC Bri Weight Of Cement
  • a mineral known as 11 A tobem orite (C5S6H5) is formed; inevitably, high compressive strength and low permeability are preserved.
  • 1 1 A tobermorite normally converts to xonotlite (C 6 SeH) with minimal deterioration. Tobermorite sometimes persists to about 200°C (392°F) in Portland cement systems because of aluminium substitution in the lattice structure.
  • oilwell cements are commercially available where 35-40% BWOC of quartz (silica) has been interground with Portland cement.
  • quartz quartz
  • This operation is not very popular since it requires special equipments (at least two silos) and is time consuming.
  • fine silica is dangerous to manipulate (e.g. causing silicosis after prolonged exposure).
  • the present invention seeks to avoid the problems involved in the use of silica in oilwell cements.
  • a method of cementing wells such as high-temperature wells (e.g. above 110°C [230°F]), by pumping into the well a cement blend comprising Portland cement and a silica-rich mineral, the blend having a C/S molar ratio of less than about 2.0.
  • silica-rich minerals used in the invention are pozzolanic materials (blast furnace slags, fly ash, etc.). In such a case, it is preferred that the C/S ratio is less than 1.7.
  • a preferred composition is a mixture Portland cement and blast furnace slags with more than 60% of slags.
  • the Blaine fineness of this material can be between 2,500 and 12,000 cm 2 /g and preferentially between 3,000 and 5,000 cm 2 /g.
  • the C/S ratio is less than 1.6.
  • the C/S molar ratio of the cement blend is decreased by adding silica-rich minerals, pozzolanic materials such as blast furnace slag and/or Class F (low content in CaO) flyash (pulverized fuel ash), that take part in the cement hydration reactions and thereby make a substantial contribution to the hydration product.
  • the silica-rich mineral addition may be ground together with the cement clinker and gypsum, or mixed with Portland cement when the latter is used.
  • Flyash and slag are waste materials produced in large quantities, and concretes (construction cements, cement/aggregate mixtures) made with them can have properties similar to those of ones made with pure Portland cements at lower cost per unit volume.
  • Flyash is ash separated from the flue gas of a power station burning pulverized coal.
  • Blast furnace slag is formed as a liquid at 1350-1550°C (2462-2822°F) in the manufacture of iron as a result of limestone reacting with materials rich in SiO 2 and Al 2 O 3 associated with the ore or present in ash from the coke. If cooled sufficiently rapidly to below 800°C (1472 °F), it forms a glass which is a latent hydraulic cement.
  • blended cements are commercially available and can contain large proportions of flyash or slag, going up to over 80% by weight in the blend. Such cements are not normally used for oilwell cementing or the like.
  • the C/S molar ratio of blended cement can be less than 1.6, and such C/S molar ratios can be sufficiently low to prevent the formation of -C 2 SH and calcium hydroxide when the cement is cured at temperature above 110°C (230°F).
  • blended commercial cements can be suitable for high- temperature oilwell cementing if high compressive strength and low permeability can be achieved.
  • the need for a blend of Portland cement and silica might be eliminated.
  • Oil well cementing compositions according to the present invention have a chemical composition significantly different from conventional oil well cement, and provide the following benefits :
  • the alpha dicalcium silicate phase which is detrimental for the mechanical properties and the permeability, is not formed, and by consequence the addition of silica is not needed (thus avoiding the need to blend cement and silica on-site and avoiding the need to handle fine silica materials).
  • the material When combined with cenospheres, the material does not induce the hydration of these cenospheres due to the lack of portlandite. As a consequence, the porosity of the cement does not increase during hydration, so the permeability of the resulting set cement is lower and the chemical durability better.
  • the cement material can also be used in a cementing composition having an engineered particle size distribution designs as fine particles for slurries with density below 10 ppg (pound per gallon) or as medium particles for shinies above 10 ppg. -
  • the amount of C 3 A is typically very low (below 3%) in this material which makes it an inherently high sulphate resistant material.
  • fly ash that is formed during the process of coal combustion in typical steam power plant generation contains a certain amount of fine spherical particles known as "cenospheres" (also called glass beads, hollow ceramic spheres or microspheres). Due to their unique combination of spherical shape, controlled sizing (after processing), relatively high strength in uniform compression, good thermal and acoustical insulating and dielectric properties, many high value applications can be made with these materials. Cenospheres have various applications which include lightweight mineral fillers in oil well cement slurries.
  • Cenospheres are hollow alumino-silicate vitreous spheres filled with air and/or other gases. Their shell thickness is about 5% of the diameter. Alumino-silicate glass predominates with negligible crystalline matter. However, a few spheres have significant crystal growth of mullite (Al 6 Si2 ⁇ 3 ).
  • Cenospheres are relatively, chemically inert and offer a good resistance to solvent and acids, but in presence of calcium and at high pH (>13), silicoaluminates react with calcium to produce a cementitious material composed of calcium silicate hydrate (called "C-S-H gel") containing aluminium ions.
  • C-S-H gel calcium silicate hydrate
  • compositions according to the invention include blends of cement, silica-containing minerals (e.g. slags) and hollow particulate materials (e.g. cenospheres). Foamed compositions can be created by injecting gas into a slurry of this composition.
  • Figure 1 shows photomicrographs of a cement/slag blend (CLK cement) cured for four weeks at 150°C (302 °F);
  • Figure 2 shows photomicrographs of a Class G cement cured for four weeks at 150°C
  • Figure 3 shows photomicrographs of a Class G cement/35% BWOC silica flour blend cured for four weeks at 150°C (302 °F);
  • Figure 4 shows X-ray diffraction spectrum of a set Portland cement with cenospheres
  • Figure 5 shows X-ray diffraction spectrum of cenospheres
  • Figure 6 shows X-ray diffraction spectrum of a cement composition according to the invention with cenospheres.
  • 600 raL of cement slurry is mixed according to the API procedure in a Waring blender mixer rotating at 12,000 RPM for 35 seconds.
  • the slurry is then introduced in a UCA (Ultrasonic Cement Analyzer) cell to follow the development of compressive strength at 150°C (302°F) under a 3000 psi (20.7 MPa) confining pressure.
  • the cement is heated from ambient temperature to 150°C (302°F) at 2.78°C/min (5°F/min) to avoid a thermal shock.
  • the compressive strength of the three cement systems stabilizes at 4700 psi (32.4 MPa) for the CLK cement, 2500 psi (17.2 MPa) for the Class G cement without addition of silica flour, and at 5500 psi (37.9 MPa) for the Class G cement stabilized with 35% BWOC silica flour. No further evolution is noted after 4 weeks and the experiments stopped.
  • the compressive strength of CLK cement is quite comparable to that obtained with the Class G cement stabilized with silica, and is sufficiently high to protect the casing against mechanical stresses which can be encountered in the well.
  • the lower compressive strength of Class G cement without addition of silica is due to "strength retrogression" phenomenon which occurs during the first day of curing.
  • the only crystalline hydrate detected by XRD in hydrated CLK cement is 11 A aluminium-substituted tobermorite (up to 10% of silicon can be substituted by aluminium in its lattice structure), while ⁇ -C 2 SH and calcium hydroxide is not detected by both techniques.
  • the presence of poorly crystallized C-S-H gel is also likely.
  • the hydrated Class G cement is mainly composed of -C SH and calcium hydroxide. Tobermorite and C-S-H gel is not detected.
  • the presence of large amounts of ⁇ -C 2 SH and calcium hydroxide can explain the low compressive strength value.
  • the hydrated Class G cement stabilized with 35% BWOC silica flour reveals the presence of small quantities of -C 2 SH and silica that has not reacted with the cement. Nevertheless, 11 A tobermorite is the major hydration product.
  • Figure 1 shows that the matrix of CLK cement is very compact, probably resulting in low permeability value. In small holes hydration products have some space to develop, they are poorly crystallized and look like those obtained at temperature below 110°C (230°F) where the C-S-H gel is predominant. Crystals of ⁇ -C 2 SH and calcium hydroxide were not observed; this is in agreement with the results obtained by TGA and XRD.
  • Figure 2 shows that the matrix of Class G cement is very porous with the presence of big holes between crystallized hydrates. These crystals mainly appear as plates which are characteristic of -C 2 SH. Some smaller hexagonal crystals of calcium hydroxide could also be distinguished. It is most likely that the permeability of this cement matrix is quite high.
  • the water pe ⁇ neability of CLK cement cured for five days at 150°C (302°F) is measured to be less than 6 ⁇ D which corresponds to the detection limit of the equipment used. Actually, the true permeability is likely much lower than this value. It is generally recognized that the water permeability of oilwell cements should be no more than 100 ⁇ D to prevent interzonal communication.
  • a cement slurry was prepared by mixing : a blend of Portland cement Class G, and cenospheres (specific gravity of
  • the mixed slurry has a specific gravity of 1.32 (11 ppg).
  • This cement slurry is then cured in a curing chamber under 3000 psi at 302°F (150°C) for 5 weeks. After, cooling, the set cement is dried with acetone and ethyl ether and then analysed :
  • the cementitious material according to the invention does not induce any chemical modification of these cenospheres.
  • the voids which compose the core of the cenospheres are not part of the porosity of the set material, that decreases significantly the permeability and increase the chemical durability when compared to normal Portland cement.
  • Cenospheres are known to have a higher chemical resistance to brines but also to acids compared to cementitious hydrates. By avoiding their hydration when combined with a cementitious material, the chemical durability of the set cement matrix is improved.
  • Class G cement was mixed with fresh water, 0.03 gps of antifoam, and 0.04 gps of dispersant so that the density of the slurry is 16 ppg (cement slurry porosity of 59%);
  • Class G cement is blended with cenospheres (specific gravity of 0.75, average particle size 130 microns) respectively in 40%/60% volume ratio. This blend is then mixed with fresh water, 0.03 gps of antifoam, and 0.4% by weight of blend (BWOB) of anti- settling agent so that the density of the slurry is 11.4 ppg (cement slurry porosity of 50%).
  • the cement cubes are weighted, then immersed into a 12% HCl solution. After 24 hours, the weight loss of the cubes made from the blend Class G/cenospheres was 31% greater than the neat Class G.
  • the cubes are weighted, then immersed into a 12% HCl solution. After 24 hours, the weight loss of the cubes made from the Cement X/cenospheres is 23% less than the neat Cement X.
  • cement slurries are prepared : a) Cement X is blended with cenospheres (specific gravity of 0.75, average particle size 130 microns) respectively in a 40%/60% volume ratio. This blend is then mixed with fresh water, and 0.08 gps of surfactants are added and the slurry is mixed in a closed warring blender so that the foam quality is 30 % (that is the volume of gas represents 30% of the total volume of cement slurry). The final density of the slurry is 7.6 ppg. b) Class G cement is blended with cenospheres (specific gravity of 0.75, average particle size 130 microns) respectively in a 40%/60% volume ratio. This blend is then mixed with fresh water, and 0.08 gps of surfactants are added and the slurry is mixed in a closed warring blender so that the foam quality is 30 %. The final density of the slurry is 7.9 ppg.
  • the cementitious material related to the invention is therefore particularly efficient to foam cement slurries containing cenospheres, allowing to reach very low densities but still keeping an acceptable permeability ( ⁇ 0.1 mDarcy).
  • Cement compositions according to the invention can form part of an engineered particle size distribution system such as that described in EP 621247.
  • Engineered particle size distribution is a concept that optimises the Packing Volume Fraction (PNF) of a blend of solid particles which allows the preparation of slurries with a high content of solid (up to 62% of the total volume of slurry) with a low rheology.
  • PNF Packing Volume Fraction
  • This optimised PNF is achieved by choosing an appropriate combination of particles in term of particle size and ratio. As long as these size criteria are met, the different particles may have any specific gravity, allowing the preparation of slurries from 6 ppg to 24 ppg.
  • the cementitious material according to the invention can be used instead of Portland cement in such slurries and preferentially when cenospheres are one of the other particles. This will reduce the total porosity of the set cement as it does not induce the hydration of the cenospheres.
  • a mixed fluid containing 6.71 gpsb (gallon perl 00 pounds of blend) of water, 0.07 gpsb of a liquid antifoam, 0.6 gpsb of a fluid loss control agent, 0.03 gpsb of retarder and 0.01 gpsb of a dispersant is prepared.
  • the cement slurry density is 1.1 (9.2 ppg).
  • the system properties are as follows:
  • the rheological values (Bingham model) are obtained after conditioning for 20 minutes the cement slurry at 130°F (54 °C).
  • the final compressive strength is measured after a cure of 24 hours at 158°F (70 °C).
  • the water permeability measurement is below the detection limit of the test equipment used (5 micro Darcy).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

L'invention porte sur un procédé de cimentation de puits à haute température (par ex. > 110 °C [230 °F]) par pompage dans le puits d'un mélange de ciment comprenant un ciment Portland et un minéral riche en silice, ce mélange ayant un rapport molaire de C/S inférieur à environ 2,0, de préférence inférieur à 1,6. Ceci évite l'utilisation de silice très fine et empêche une diminution de la résistance. La boue peut comprendre un mélange de ciment Portland et de matériaux pouzzolaniques (laitiers de haut fourneau, cendres volantes, etc.) de sorte que la composition chimique (exprimée en oxydes) ait un rapport molaire Ca0/Si02 inférieur à 1,7. Une composition préférée est un mélange de ciment Portland et de laitiers de haut fourneau, ce mélange étant constitué de plus de 60 % de laitiers. La finesse de mouture (Blaine) de ce matériau peut être comprise entre 2 500 and 12 000 cm2/g et, de préférence, entre 3 000 et 5 000 cm2/g.
PCT/EP2003/050103 2002-04-17 2003-04-11 Ciments contenant des mineraux a haute teneur en silice pour la cimentation de puits WO2003087010A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003227758A AU2003227758A1 (en) 2002-04-17 2003-04-11 Cements containing high-silica minerals for well cementing

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB0208774A GB2387593A (en) 2002-04-17 2002-04-17 Impermeable oil well cement
GB0208774.0 2002-04-17
GB0208775.7 2002-04-17
GB0208775A GB2387613A (en) 2002-04-17 2002-04-17 High temperature well cementing using silica-rich minerals

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WO2003087010A1 true WO2003087010A1 (fr) 2003-10-23

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006114623A2 (fr) * 2005-04-26 2006-11-02 Statoilhydro Asa Procede de construction et de traitement de puits
US7884055B2 (en) 2008-12-04 2011-02-08 Intevep, S.A. Ceramic microspheres for cementing applications
US7964539B2 (en) 2004-06-17 2011-06-21 Statoil Asa Well treatment
EP2588714A2 (fr) * 2010-06-30 2013-05-08 Services Pétroliers Schlumberger Suspensions à haute teneur en solides et procédés
US8863855B2 (en) 2007-06-26 2014-10-21 Statoil Asa Method of enhancing oil recovery
US8915997B2 (en) 2013-05-16 2014-12-23 Navs, Llc Durable concrete and method for producing the same
CN105331341A (zh) * 2015-10-13 2016-02-17 嘉华特种水泥股份有限公司 一种高温油气井的固井材料
US9850423B2 (en) 2011-11-11 2017-12-26 Schlumberger Technology Corporation Hydrolyzable particle compositions, treatment fluids and methods
US10011763B2 (en) 2007-07-25 2018-07-03 Schlumberger Technology Corporation Methods to deliver fluids on a well site with variable solids concentration from solid slurries
CN112341067A (zh) * 2020-10-27 2021-02-09 中国石油集团工程技术研究院有限公司 一种超高温高强度韧性水泥浆体系
CN112390659A (zh) * 2019-08-15 2021-02-23 中国石油化工股份有限公司 一种水泥浆体系
CN113213785A (zh) * 2021-06-04 2021-08-06 嘉华特种水泥股份有限公司 一种高强低水化热固井水泥及其制备方法
CN114075049A (zh) * 2020-08-11 2022-02-22 中国石油化工股份有限公司 一种超低密度水泥浆用复合减轻材料以及低压漏失井用超低密度水泥浆
CN114075925A (zh) * 2021-03-01 2022-02-22 李泓胜 一种地质石油配方及其制作方法
CN114163172A (zh) * 2020-09-11 2022-03-11 中国石油化工股份有限公司 一种干热岩固井用耐高温水泥浆体系
CN115353330A (zh) * 2022-04-11 2022-11-18 中国石油大学(华东) 一种泵送性能优异的耐超高温固井水泥体系及其制备方法
WO2023275266A1 (fr) * 2021-06-30 2023-01-05 Construction Research & Technology Gmbh Composition de coulis de ciment

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US6145591A (en) * 1997-12-12 2000-11-14 Bj Services Company Method and compositions for use in cementing
WO2001070646A1 (fr) * 2000-03-23 2001-09-27 Sofitech N.V. Compositions de cimentation et utilisation de ces compositions pour cimenter des puits de petrole ou analogue

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US3876005A (en) * 1972-01-24 1975-04-08 Halliburton Co High temperature, low density cementing method
US4871395A (en) * 1987-09-17 1989-10-03 Associated Universities, Inc. High temperature lightweight foamed cements
US5547024A (en) * 1994-12-06 1996-08-20 Bj Services Co Method of using construction grade cement in oil and gas wells
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