CN108046694A - A kind of channeling control cement slurry system cemented the well suitable for shale gas and preparation method thereof - Google Patents
A kind of channeling control cement slurry system cemented the well suitable for shale gas and preparation method thereof Download PDFInfo
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- CN108046694A CN108046694A CN201711285849.8A CN201711285849A CN108046694A CN 108046694 A CN108046694 A CN 108046694A CN 201711285849 A CN201711285849 A CN 201711285849A CN 108046694 A CN108046694 A CN 108046694A
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- 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
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- 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
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- 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
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- 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
- C09K8/48—Density increasing or weighting additives
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- 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
- C09K8/493—Additives for reducing or preventing gas migration
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses it is a kind of suitable for shale gas well cementation channeling control cement slurry system, including：G grades of oil-well cements, fresh water, heavy weight additive or palliative, quartz sand, G403 oil-well cement toughener, redispersable latex powder, stabilizer, G33S oil-well cement filtrate reducers, 9 oil well cement retarders of GH, G401 oil well cement swelling agents, USZ well cement tolerance blockings, 1 antifoaming agent of XP.The present invention prepares the elastic anti fluid channeling cement slurry system of different specific weight by the adjusting of extra material heavy weight additive and palliative, can meet the cementing requirements of different blocks, Different Strata, good sealing oil-gas Layer.The present invention uses fluid loss agent, retarder, swelling agent, drag reducer to have very strong adaptability, in different mortar architectures, has good compatibility so that the high comprehensive performance of mortar architecture.
Description
Technical field
The present invention relates to oil drilling well cementation field, more particularly to a kind of channeling control cement slurries suitable for shale gas well cementation
System and preparation method thereof.
Background technology
Shale gas is referred to contain the Unconventional gas for exploitation in rammell, mainly be deposited with absorption and free state
In intrinsic fracture and hole.Shale gas development has extensive geological Significance, is present in almost all of basin, still
Since shale gas permeability of reservoir is low, exploitation difficulty is larger, and the later stage, generally will large-scale staged fracturing work in order to increase yield
Industry is higher to the performance requirement of well-cementing cement.Simultaneously for different stratum, exploitation difficulty is not quite similar, it is necessary to use difference
Proportion, the cement mortar of characteristic come sealing stratum.Mortar architecture employed in shale gas cementing operation at present is mainly by addition
Rubber powder improves the elasticity of Behavior of Hardened Cement Paste, but rubber powder is bad with cement mortar compatibility in itself, the stability of cement mortar can be made
Into influence.
The content of the invention
To solve the above-mentioned problems, the object of the present invention is to provide a kind of channeling control cement slurries suitable for shale gas well cementation
System and preparation method thereof.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G grades of oil wells
0~25 part of 100 parts of cement, 46~75 parts of fresh water, 0~90 part of heavy weight additive or palliative, 0~30 part of quartz sand, G403 oil well water
0.5~1.5 part of mud toughener, 0~4 part of redispersable latex powder, 2~15 parts of stabilizer, G33S oil-well cement filtrate reducers 2.5
~5.0 parts, 0~2.5 part of GH-9 oil well cement retarders, 1.0~3.0 parts of G401 oil well cement swelling agents, USZ oil-well cements subtract
0~0.8 part of resist, 0.2~0.4 part of XP-1 antifoaming agent.
The heavy weight additive is Iron Ore Powder, and grain size is 250~1200 mesh；The palliative is glass microballoon, and grain size is
200~300 mesh, the bearing capacity of glass microballoon are not less than 6000psi；The quartz sand, grain size are 160~200 mesh；It is described
Stabilizer be active SILICA FUME, grain size is 160~300 mesh.
The redispersable latex powder is available from Guangzhou open country Industrial Co., Ltd., model：DY5020.
A kind of preparation method of channeling control cement slurry system suitable for shale gas well cementation, comprises the following steps：
1. weigh G grades of oil-well cements, heavy weight additive or palliative, quartz sand, G403 oil-well cements toughener, redispersible breast
Rubber powder, stabilizer, G33S oil-well cement filtrate reducers, G401 oil well cement swelling agents, USZ well cement tolerance blockings are puddled
It is even spare；
2. by fresh water, GH-9 oil well cement retarders, pump circulation 2h is uniformly mixed standby in XP-1 antifoaming agent input holding vessel
With；
3. the mixture of step 1. and 2. is uniformly mixed by cementing equipment.
Beneficial effects of the present invention：
1st, the present invention prepares the elastic leakage-proof mud of different specific weight by the adjusting of extra material heavy weight additive and palliative
System (density 1.40g/cm3~2.40g/cm3), the cementing requirements of different blocks, Different Strata, good sealing oil can be met
Gas-bearing formation.The present invention uses fluid loss agent, retarder, swelling agent, drag reducer to have very strong adaptability, in different water
In mud system, there is good compatibility so that the high comprehensive performance of mortar architecture.
2nd, cement mortar prepared by the present invention is further had good using redispersable latex powder as elastic material with water
Good intersolubility, is added in cement mortar, can greatly improve the malleable of Behavior of Hardened Cement Paste, reduce the elasticity modulus of Behavior of Hardened Cement Paste, carry
The deformability of high Behavior of Hardened Cement Paste is later stage acid fracturing to resist the shock loading that later stage staged fracturing is brought, and perforation completion carries
For ensureing.
3rd, mortar architecture prepared by the present invention has preferable mobility, beneficial to the with slurry of construction site and pumping；It is good
The ability of good control dehydration, can be effectively protected subterranean oil gas-bearing formation from pollution；Thickening time linear relationship is good, cement
The development of stone intensity is fast, and intensity can reach more than 14MPa for 24 hours, can effective anti-gas channeling, improve cementing quality.
Specific embodiment
The specific embodiment of the present invention is described in further detail with reference to embodiments.
Raw material used in the present invention is as follows：
Heavy weight additive is Iron Ore Powder, and grain size is 250~1200 mesh.
Palliative is glass microballoon, and grain size is 200~300 mesh, and the bearing capacity of glass microballoon is not less than 6000psi.
Quartz sand particle size is 160~200 mesh.
Stabilizer is active SILICA FUME, and grain size is 160~300 mesh.
Redispersable latex powder is purchased from Guangzhou open country Industrial Co., Ltd., model：DY5020 has good point in water
Property is dissipated, does not influence the stability of cement slurry, plays the role of reducing Behavior of Hardened Cement Paste elasticity modulus in cement mortar.
G403 oil-well cements toughener, G33S oil-well cement filtrate reducers, GH-9 oil well cement retarders, G401 oil well water
Mud swelling agent, USZ well cement tolerance blockings, XP-1 antifoaming agent are the product of Weihui City Chemical Co., Ltd..
Embodiment 1
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G grades of oil wells
100 parts of cement, 73 parts of fresh water, 25 parts of palliative, 0.5 part of G403 oil-well cements toughener, 12 parts of stabilizer, G33S oil-well cements
2.5 parts of fluid loss agent, 1.4 parts of GH-9 oil well cement retarders, 2.5 parts of G401 oil well cement swelling agents, USZ oil-well cement drag reductions
0.3 part of agent, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation, comprises the following steps：
1. weigh G grades of oil-well cements, palliative, G403 oil-well cements toughener, stabilizer, the drop dehydration of G33S oil-well cements
Agent, G401 oil well cement swelling agents, USZ well cement tolerance blockings are puddled uniformly spare；
2. by fresh water, GH-9 oil well cement retarders, pump circulation 2h is uniformly mixed standby in XP-1 antifoaming agent input holding vessel
With；
3. the mixture of step 1. and 2. is uniformly mixed by cementing equipment.
Embodiment 2
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G class g cements
100 parts, 75 parts of fresh water, 22 parts of palliative, 0.5 part of G403 oil-well cements toughener, 10 parts of stabilizer, the drop mistake of G33S oil-well cements
2.5 parts of aqua, 1.5 parts of GH-9 oil well cement retarders, 2.5 parts of G401 oil well cement swelling agents, USZ well cement tolerance blockings
0.3 part, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation is the same as embodiment 1.
Embodiment 3
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G class g cements
100 parts, 64 parts of fresh water, 15 parts of palliative, 0.5 part of G403 oil-well cements toughener, 8 parts of stabilizer, the drop mistake of G33S oil-well cements
2.5 parts of aqua, 1.4 parts of GH-9 oil well cement retarders, 2.5 parts of G401 oil well cement swelling agents, USZ well cement tolerance blockings
0.3 part, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation is the same as embodiment 1.
Embodiment 4
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G grades of oil wells
100 parts of cement, 46 parts of fresh water, 1.0 parts of G403 oil-well cements toughener, 2.5 parts of redispersable latex powder, 3 parts of stabilizer, G33S
2.5 parts of oil-well cement filtrate reducer, 0.8 part of GH-9 oil well cement retarders, 1.0 parts of G401 oil well cement swelling agents, USZ oil wells
0.3 part of friction reducer for cement slurry, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation is the same as embodiment 1.
Embodiment 5
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G grades of oil wells
100 parts of cement, 48 parts of fresh water, 30 parts of heavy weight additive, 1.0 parts of G403 oil-well cements toughener, 3.0 parts of redispersable latex powder, surely
Determine 8 parts of agent, 3.5 parts of G33S oil-well cement filtrate reducers, 0.6 part of GH-9 oil well cement retarders, G401 oil well cement swelling agents
2.0 parts, 0.3 part of USZ well cement tolerance blockings, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation is the same as embodiment 1.
Embodiment 6
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G grades of oil wells
100 parts of cement, 52 parts of fresh water, 55 parts of heavy weight additive, 30 parts of quartz sand, 0.8 part of G403 oil-well cements toughener, Redispersable latex
2.5 parts of powder, 10 parts of stabilizer, 4.0 parts of G33S oil-well cement filtrate reducers, 1.8 parts of GH-9 oil well cement retarders, G401 oil wells
2.0 parts of expansive agent for cement slurry, 0.3 part of USZ well cement tolerance blockings, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation is the same as embodiment 1.
Embodiment 7
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G grades of oil wells
100 parts of cement, 54 parts of fresh water, 65 parts of heavy weight additive, 30 parts of quartz sand, 1.0 parts of G403 oil-well cements toughener, Redispersable latex
3.0 parts of powder, 8 parts of stabilizer, 4.5 parts of G33S oil-well cement filtrate reducers, 2.0 parts of GH-9 oil well cement retarders, G401 oil wells
2.0 parts of expansive agent for cement slurry, 0.3 part of USZ well cement tolerance blockings, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation is the same as embodiment 1.
Embodiment 8
A kind of channeling control cement slurry system suitable for shale gas well cementation includes the raw material of following parts by weight meter：G grades of oil wells
100 parts of cement, 59 parts of fresh water, 90 parts of heavy weight additive, 1.5 parts of G403 oil-well cements toughener, 3.5 parts of redispersable latex powder, surely
Determine 10 parts of agent, 5.0 parts of G33S oil-well cement filtrate reducers, 2.3 parts of GH-9 oil well cement retarders, G401 oil well cement swelling agents
2.0 parts, 0.5 part of USZ well cement tolerance blockings, 0.2 part of XP-1 antifoaming agent.
The preparation method of the channeling control cement slurry system for being suitable for shale gas well cementation is the same as embodiment 1.
Application examples
1st, cement mortar basic performance measures
Basic performance measure is carried out to cement mortar prepared by each embodiment, the results are shown in Table 1.
1 cement slurry property measurement result of table
As can be seen from Table 1, the cement slurry density that prepared by the present invention can be in 1.45~2.40g/cm3In the range of adjust, flow
For dynamic degree between 20~23cm, fluidity of slurry is good, and dehydration is controlled within 50ml, and the thickening time is adjustable, cement mortar synthesis
It is functional.
2nd, Mechanical Behavior of Hardened Cement Paste is evaluated
Each embodiment Mechanical Behavior of Hardened Cement Paste is measured, the results are shown in Table 2.
2 Mechanical Behavior of Hardened Cement Paste of table
As can be seen from Table 2, the mechanical property of Behavior of Hardened Cement Paste is excellent, has higher resistance to compression, flexural strength and relatively low elasticity
Modulus, the good sealing shale gas-bearing formation of energy, meets subsequent construction needs.
The foregoing is merely the embodiments that the present invention is optimal, and for those skilled in the art, the present invention can have
Various modifications and variations.Within the spirit and principles of the invention, any modifications, equivalent replacements and improvements are made, should all
It is included within protection scope of the present invention.
Claims (4)
1. a kind of channeling control cement slurry system suitable for shale gas well cementation, which is characterized in that include the original of following parts by weight meter
Material：0~25 part of G grades of 100 parts of oil-well cements, 46~75 parts of fresh water, 0~90 part of heavy weight additive or palliative, 0~30 part of quartz sand,
0.5~1.5 part of G403 oil-well cements toughener, 0~4 part of redispersable latex powder, 2~15 parts of stabilizer, G33S oil-well cements
2.5~5.0 parts of fluid loss agent, 0~2.5 part of GH-9 oil well cement retarders, 1.0~3.0 parts of G401 oil well cement swelling agents,
0~0.8 part of USZ well cement tolerance blockings, 0.2~0.4 part of XP-1 antifoaming agent.
2. the channeling control cement slurry system according to claim 1 suitable for shale gas well cementation, which is characterized in that described
Heavy weight additive is Iron Ore Powder, and grain size is 250~1200 mesh；The palliative be glass microballoon, grain size be 200~300 mesh, glass
The bearing capacity of microballon is not less than 6000psi；The quartz sand, grain size are 160~200 mesh；The stabilizer is activity
SILICA FUME, grain size are 160~300 mesh.
3. the channeling control cement slurry system according to claim 1 suitable for shale gas well cementation, which is characterized in that described
Redispersable latex powder is available from Guangzhou open country Industrial Co., Ltd., model：DY5020.
4. a kind of preparation side for the channeling control cement slurry system for being suitable for shale gas well cementation such as claim 1-3 any one of them
Method, which is characterized in that comprise the following steps：
1. weigh G grades of oil-well cements, heavy weight additive or palliative, quartz sand, G403 oil-well cements toughener, Redispersable latex
Powder, stabilizer, G33S oil-well cement filtrate reducers, G401 oil well cement swelling agents, USZ well cement tolerance blockings are puddled uniformly
It is spare；
2. by fresh water, GH-9 oil well cement retarders, pump circulation 2h is uniformly mixed spare in XP-1 antifoaming agent input holding vessel；
3. the mixture of step 1. and 2. is uniformly mixed by cementing equipment.
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Cited By (9)
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| CN109488212A (en) * | 2018-10-23 | 2019-03-19 | 成都科盛石油科技有限公司 | Drilling and finishing drilling method in drilling engineering in shale reservoir |
| CN109896801A (en) * | 2019-04-15 | 2019-06-18 | 卫辉市化工有限公司 | A kind of NEW TYPE OF COMPOSITE lightening material low weight cement slurry and preparation method thereof |
| CN111848016A (en) * | 2020-07-23 | 2020-10-30 | 中国石油天然气集团有限公司 | Oil-based drilling cutting surface well cementation cement slurry and preparation method thereof |
| CN111849440A (en) * | 2020-06-29 | 2020-10-30 | 尧柏特种水泥技术研发有限公司 | Low-thixotropic low-density oil well cement slurry for oil and gas well cementing treatment |
| CN111978028A (en) * | 2019-05-21 | 2020-11-24 | 中国石油化工股份有限公司 | Well cementation cement slurry system and application thereof |
| CN112010590A (en) * | 2019-05-28 | 2020-12-01 | 中国石油化工股份有限公司 | Well cementation cement slurry |
| CN114426415A (en) * | 2022-01-18 | 2022-05-03 | 中国石油化工股份有限公司 | High-density anti-channeling tough cement slurry system for shale gas-solid well and preparation method and application thereof |
| CN116023051A (en) * | 2021-10-25 | 2023-04-28 | 中石化石油工程技术服务有限公司 | Cement additive, cement composition and cement paste |
| CN116444219A (en) * | 2022-01-05 | 2023-07-18 | 中国石油天然气集团有限公司 | High-temperature-resistant salt-resistant high-density channeling-preventing oil well cement slurry and preparation method thereof |
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| CN109488212A (en) * | 2018-10-23 | 2019-03-19 | 成都科盛石油科技有限公司 | Drilling and finishing drilling method in drilling engineering in shale reservoir |
| CN109896801B (en) * | 2019-04-15 | 2021-07-20 | 卫辉市化工有限公司 | Novel composite lightening material low-density cement paste system and preparation method thereof |
| CN109896801A (en) * | 2019-04-15 | 2019-06-18 | 卫辉市化工有限公司 | A kind of NEW TYPE OF COMPOSITE lightening material low weight cement slurry and preparation method thereof |
| CN111978028B (en) * | 2019-05-21 | 2022-08-19 | 中国石油化工股份有限公司 | Well cementation cement slurry system and application thereof |
| CN111978028A (en) * | 2019-05-21 | 2020-11-24 | 中国石油化工股份有限公司 | Well cementation cement slurry system and application thereof |
| CN112010590A (en) * | 2019-05-28 | 2020-12-01 | 中国石油化工股份有限公司 | Well cementation cement slurry |
| CN111849440A (en) * | 2020-06-29 | 2020-10-30 | 尧柏特种水泥技术研发有限公司 | Low-thixotropic low-density oil well cement slurry for oil and gas well cementing treatment |
| CN111849440B (en) * | 2020-06-29 | 2023-03-28 | 尧柏特种水泥技术研发有限公司 | Low-thixotropic low-density oil well cement slurry for oil and gas well cementing treatment |
| CN111848016A (en) * | 2020-07-23 | 2020-10-30 | 中国石油天然气集团有限公司 | Oil-based drilling cutting surface well cementation cement slurry and preparation method thereof |
| CN116023051A (en) * | 2021-10-25 | 2023-04-28 | 中石化石油工程技术服务有限公司 | Cement additive, cement composition and cement paste |
| CN116444219A (en) * | 2022-01-05 | 2023-07-18 | 中国石油天然气集团有限公司 | High-temperature-resistant salt-resistant high-density channeling-preventing oil well cement slurry and preparation method thereof |
| CN114426415A (en) * | 2022-01-18 | 2022-05-03 | 中国石油化工股份有限公司 | High-density anti-channeling tough cement slurry system for shale gas-solid well and preparation method and application thereof |
| CN114426415B (en) * | 2022-01-18 | 2022-11-15 | 中国石油化工股份有限公司 | High-density anti-channeling tough cement slurry system for shale gas-solid well and preparation method and application thereof |
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Application publication date: 20180518 |