CN104610948B - A kind of anti-shallow-layer stream phosphor aluminate cement slurry of deep water cementing - Google Patents
A kind of anti-shallow-layer stream phosphor aluminate cement slurry of deep water cementing Download PDFInfo
- Publication number
- CN104610948B CN104610948B CN201510053703.5A CN201510053703A CN104610948B CN 104610948 B CN104610948 B CN 104610948B CN 201510053703 A CN201510053703 A CN 201510053703A CN 104610948 B CN104610948 B CN 104610948B
- Authority
- CN
- China
- Prior art keywords
- cement
- parts
- cement mortar
- shallow
- layer stream
- 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.)
- Active
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
-
- 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
- C04B28/34—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 cold phosphate binders
-
- 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
-
- 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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
Abstract
The invention discloses a kind of deep water cementing control shallow-layer stream disaster cement mortar.The cement mortar it include following components：Mediation cement, defoamer, fluid loss agent, coagulant, retarder and seawater.The cement mortar may also include palliative.The cement mortar can be made up of following components in parts by weight：Mediation cement：100；Defoamer：0.2~0.4；Fluid loss agent：3.5~4；Coagulant：1~1.5；Retarder：0.2~0.5；Palliative：0~35；Seawater：48~75.Deep water cementing control shallow-layer stream disaster cement mortar of the present invention has advantages below：(1) low temperature intensity development is fast, and compression strength is higher under low temperature；(2) thickening time is short, is thickened the nearly short transient time of curve, can effectively prevent shallow-layer stream disaster；(3) there is the cement mortar free liquid to be zero, the features such as filter loss is smaller and the thickening time is adjustable.
Description
Technical field
Shallow-layer stream disaster cement mortar, more particularly to a kind of anti-shallow-layer stream phosphorus aluminic acid of deep water cementing are controlled the present invention relates to one kind
Salt-water mud, belongs to deep water hydrocarbon resources exploration and is drilled well field.
Background technology
As offshore oil reserves exploit the increase of ratio, offshore oil drilling is progressively new to find to deepwater regions development
Petroleum resources, the more stern challenge to deep water cementing operation band yet with various challenges caused by the depth of water, its
The influence of mesohigh shallow-layer stream is one of ratio bigger difficulty that deep water cementing operation faces.
Shallow-layer stream includes shallow-layer stream and shallow gas, and trap is below the mud line in 150~1000 meters or so of stratum, shallow-layer stream
Especially big is endangered to well cementing operation, on the one hand, shallow-layer, which is flowed through, to be often resulted in well and excessively wash away, hole-size elongation, well cleaning is difficult,
Well cementation is impacted, causes well cementation interface agglutination bad, produces gap.On the other hand, in casing and cementing, cement mortar is being waited
During solidifying, shallow-layer high-pressure fluid will be gushed out in the sedimentary formation of weakness, intrusion cement mortar, cause fluid to alter, groove is altered in generation,
Behavior of Hardened Cement Paste bonding capacity is influenceed, the annular space sealing effect of cement is reduced, brings risk to well cementing operation, be seriously likely to result in well
The disasters such as spray, well head are collapsed, fire, jeopardize operation and the production safety of whole well, existing cement slurry ties up to deep water shallow-layer
It is difficult solidification to flow under environment, and thickening transformation time is longer, and low temperature intensity development performance is also poor.
The content of the invention
It is an object of the invention to provide a kind of deep water cementing control shallow-layer stream disaster cement mortar, the cement mortar can be in depth
Used under the shallow laminar flow environment of water, and with the thickening time is adjustable, cement slurry density and dehydration are controllable, low temperature intensity is quickly grown,
Early strength is high, short transient time and the features such as good anti-channeling performance.
The deep water cementing that the present invention is provided control shallow-layer stream disaster cement mortar, it includes following components：Reconcile cement, disappear
Infusion, fluid loss agent, coagulant, retarder and seawater.
In above-mentioned cement mortar, the cement mortar also includes palliative.
In above-mentioned cement mortar, the cement mortar by it is following 1) and 2) in any component constitute：
1) mediation cement, defoamer, fluid loss agent, coagulant, retarder, seawater；
2) mediation cement, defoamer, fluid loss agent, coagulant, retarder, palliative and seawater.
In above-mentioned cement mortar, each component parts by weight are as follows：
Mediation cement：100 parts
Defoamer：0.2~0.4 part
Fluid loss agent：3.5~4 parts
Coagulant：1~1.5 part
Retarder：0.2~0.5 part
Palliative：0~35 part
Seawater：48~75 parts.
Above-mentioned deep water cementing control shallow-layer stream disaster cement mortar concretely following 1) -9) in it is any：
1) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：0~20 part, seawater：48~58 parts；
2) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：12~35 parts, seawater：53~75 parts；
3) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：7~31 parts, seawater：50~65 parts；
4) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：0 part, seawater：48 parts；
5) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：7 parts, seawater：50 parts；
6) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：12 parts, seawater：53 parts；
7) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：20 parts, seawater：58 parts；
8) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：31 parts, seawater：65 parts；
9) it is made up of the component of following mass parts：
Mediation cement：100 parts, defoamer：0.2 part, fluid loss agent：4 parts, coagulant：1.5 parts, retarder：0.5 part, subtract
Light diaphoretic prescription：35 parts, seawater：75 parts.
In above-mentioned cement mortar, it is described reconcile cement can by 90% phosphor aluminate cement and 10% ultrafine high activity slag
Composition；The ultrafine high activity slag particle diameter is 20~90 μm.
In above-mentioned cement mortar, the defoamer can be silicone oil defoamer, and such as COSL carries
The commercial disignation of confession is CX66L silicon oil foam killer.
In above-mentioned cement mortar, the fluid loss agent can be high molecular weight water soluble polymer；The water soluble polymer polymerization
Thing can be in acrylamide -2- acrylamide-2-methyl propane sulfonics copolymer and acrylamide-sodium acrylate copolymer at least one
Kind；The number-average molecular weight of the acrylamide -2- acrylamide-2-methyl propane sulfonic copolymers can be 2 × 105G/mol~1 ×
106G/mol, concretely 9 × 105G/mol, the number-average molecular weight of the acrylamide-sodium acrylate copolymer can for 2 ×
105G/mol~1 × 106G/mol, concretely 7 × 105g/mol。
In above-mentioned cement mortar, the coagulant can be sodium sulphate, potassium chloride, sodium nitrate, sodium metaaluminate, potassium silicate, formic acid
At least one of sodium, lithium chloride, potassium formate and calcium chloride.
In above-mentioned cement mortar, the retarder can be at least one of citric acid, boric acid, borate and organic phosphate；
The organic phosphate concretely ethylene diamine tetra methylene phosphonic acid sodium.
In above-mentioned cement mortar, the palliative can be hollow glass micropearl；The material of the hollow glass micropearl can be silicon
Boric acid calcium salt；The density of the hollow glass micropearl can be 0.4~0.8kg/L, concretely 0.44g/cm3；In 70MPa pressure
Under the hollow glass micropearl residual motility rate more than 90%, water insoluble and oil, with Incoercibility, in low alkalinity, with
Most resinous matter has compatibility, has reduction viscosity and improves the function of mobility.
Deep water cementing control shallow-layer stream disaster cement mortar of the present invention has advantages below：
(1) low temperature intensity development is fast, and compression strength is higher under low temperature；
(2) thickening time is short, is thickened the nearly short transient time of curve, can effectively prevent shallow-layer stream disaster；
(3) there is the cement mortar free liquid to be zero, the features such as filter loss is smaller and the thickening time is adjustable.
Embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
Material, reagent used etc., unless otherwise specified, are commercially obtained in following embodiments.
In following embodiments reconcile cement by 90% phosphor aluminate cement and 10% ultrafine high activity slag (particle diameter
For 20~90 μm) composition, buy in Jingzhou Jiahua Technology Co., Ltd..
Seawater in following embodiments is all from South China Sea deep sea water.
Defoamer in following embodiments is silicon oil foam killer, is bought in COSL, commodity
Code name is CX66L.
Acrylamide -2- acrylamide-2-methyl propane sulfonics copolymer in following embodiments is purchased from CNOOC's field service
Limited company.
Palliative in following embodiments is hollow glass micropearl, and the limited public affairs of petroleum assistant science and technology are contained purchased from Hebei side
Department.
The preparation of embodiment 1, deep water cementing control shallow-layer stream disaster cement mortar
Each component is weighed according to following formulas：
Mediation cement 100kg, seawater 75kg, silicon oil foam killer CX66L 0.2kg, acrylamide -2- acrylamide -2- first
(number-average molecular weight is 9 × 10 to base sulphonic acid copolymer5G/mol) 4kg, lithium chloride 1.5kg, boric acid 0.5kg, hollow glass micropearl
(density is 0.44g/cm3)35kg。
Preparation method：Required solid material is pre-mixed it is uniform stand-by, then by fluent material it is well mixed after, add
The solid material being pre-mixed, and it is uniformly mixing to obtain control shallow-layer stream disaster cement mortar.
The preparation of embodiment 2, deep water cementing control shallow-layer stream disaster cement mortar
Each component is weighed according to following formulas：
Mediation cement 100kg, seawater 65kg, silicon oil foam killer CX66L0.2kg, acrylamide -2- acrylamide -2- first
(number-average molecular weight is 9 × 10 to base sulphonic acid copolymer5G/mol) 4kg, lithium chloride 1.5kg, boric acid 0.5kg, hollow glass micropearl
(density is 0.44g/cm3)31kg。
Preparation method：Required solid material is pre-mixed it is uniform stand-by, then by fluent material it is well mixed after, add
The solid material being pre-mixed, and it is uniformly mixing to obtain control shallow-layer stream disaster cement mortar.
The preparation of embodiment 3, deep water cementing control shallow-layer stream disaster cement mortar
Each component is weighed according to following formulas：
Mediation cement 100kg, seawater 58kg, silicon oil foam killer CX66L 0.2kg, acrylamide -2- acrylamide -2- first
(number-average molecular weight is 9 × 10 to base sulphonic acid copolymer5G/mol) 4kg, lithium chloride 1.5kg, boric acid 0.5kg, hollow glass micropearl
(density is 0.44g/cm3)20kg。
Preparation method：Required solid material is pre-mixed it is uniform stand-by, then by fluent material it is well mixed after, add
The solid material being pre-mixed, and it is uniformly mixing to obtain control shallow-layer stream disaster cement mortar.
The preparation of embodiment 4, deep water cementing control shallow-layer stream disaster cement mortar
Each component is weighed according to following formulas：
Mediation cement 100kg, seawater 53kg, silicon oil foam killer CX66L 0.2kg, acrylamide -2- acrylamide -2- first
(number-average molecular weight is 9 × 10 to base sulphonic acid copolymer5G/mol) 4kg, lithium chloride 1.5kg, boric acid 0.5kg, hollow glass micropearl
(density is 0.44g/cm3)12kg。
Preparation method：Required solid material is pre-mixed it is uniform stand-by, then by fluent material it is well mixed after, add
The solid material being pre-mixed, and it is uniformly mixing to obtain control shallow-layer stream disaster cement mortar.
The preparation of embodiment 5, deep water cementing control shallow-layer stream disaster cement mortar
Each component is weighed according to following formulas：
Mediation cement 100kg, seawater 50kg, silicon oil foam killer CX66L 0.2kg, acrylamide -2- acrylamide -2- first
(number-average molecular weight is 9 × 10 to base sulphonic acid copolymer5G/mol) 4kg, lithium chloride 1.5kg, boric acid 0.5kg, hollow glass micropearl
(density is 0.44g/cm3)7kg。
Preparation method：Required solid material is pre-mixed it is uniform stand-by, then by fluent material it is well mixed after, add
The solid material being pre-mixed, and it is uniformly mixing to obtain control shallow-layer stream disaster cement mortar.
The preparation of embodiment 6, deep water cementing control shallow-layer stream disaster cement mortar
Each component is weighed according to following formulas：
Mediation cement 100kg, seawater 48kg, silicon oil foam killer CX66L 0.2kg, acrylamide -2- acrylamide -2- first
(number-average molecular weight is 9 × 10 to base sulphonic acid copolymer5G/mol) 4kg, lithium chloride 1.5kg, boric acid 0.5kg.
Preparation method：Required solid material is pre-mixed it is uniform stand-by, then by fluent material it is well mixed after, add
The solid material being pre-mixed, and it is uniformly mixing to obtain control shallow-layer stream disaster cement mortar.
The performance test of embodiment 7, the preparation-obtained cement mortars of embodiment 1-6
According to well cementation testing standard API10B-2-2005 and deep water cementing standard API10B-3-2004 to embodiment 1-6 systems
Standby obtained deep water cementing carries out performance test with control shallow-layer stream disaster cement mortar, and its result is as shown in table 1.
The performance of the deep water cementing that the embodiment 1-6 of table 1 is prepared control shallow-layer stream disaster cement mortar
Data are understood as shown in Table 1, and present invention control shallow-layer stream disaster cement mortar has the thickening time adjustable, density and mistake
Water is controllable, and low temperature intensity is quickly grown, the characteristics of early strength is high；Cement mortar thickening transformation time can be controlled at 20 minutes
It is interior, illustrate cement mortar as used in liquid transition to solid-state the time within 20 minutes；Higher early strength and shorter thickening
Transformation time is conducive to cement mortar to suppress shallow-layer stream disaster.Cement mortar has zero Free water characteristic, illustrates slurry stability preferably,
The rheology readings of Φ 300 be less than 300, can effective guarantee cement mortar safely and effectively pump.
Claims (1)
1. a kind of deep water cementing control shallow-layer stream disaster cement mortar, it is characterised in that：It by it is following 1) and 2) in any group
It is grouped into：
1) mediation cement, defoamer, fluid loss agent, coagulant, retarder and seawater；
2) mediation cement, defoamer, fluid loss agent, coagulant, retarder, palliative and seawater；
Each component parts by weight are as follows：
Mediation cement：100 parts
Defoamer：0.2~0.4 part
Fluid loss agent：3.5~4 parts
Coagulant：1~1.5 part
Retarder：0.2~0.5 part
Palliative：0~35 part
Seawater：48~75 parts；
The mediation cement is made up of 90% phosphor aluminate cement and 10% ultrafine high activity slag；The ultrafine high activity
Slag particle diameter is 20~90 μm；
The silicon oil foam killer that the defoamer is CX66L for the commercial disignation that COSL provides；
The fluid loss agent is that acrylamide -2- acrylamide-2-methyl propane sulfonics copolymer or acrylic amide-acrylic sodium are common
Polymers；
The number-average molecular weight of the acrylamide -2- acrylamide-2-methyl propane sulfonic copolymers is 2 × 105G/mol~1 ×
106g/mol；
The number-average molecular weight of the acrylamide-sodium acrylate copolymer is 2 × 105G/mol~1 × 106g/mol；
The coagulant is in sodium sulphate, potassium chloride, sodium nitrate, sodium metaaluminate, potassium silicate, sodium formate, potassium formate and calcium chloride
It is at least one；
The retarder is at least one of citric acid, boric acid, borate and organic phosphate；The organic phosphate is second two
The methene Alendronate of amine four；
The palliative is hollow glass micropearl；
The density of the hollow glass micropearl is 0.4~0.8kg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053703.5A CN104610948B (en) | 2015-02-02 | 2015-02-02 | A kind of anti-shallow-layer stream phosphor aluminate cement slurry of deep water cementing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510053703.5A CN104610948B (en) | 2015-02-02 | 2015-02-02 | A kind of anti-shallow-layer stream phosphor aluminate cement slurry of deep water cementing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104610948A CN104610948A (en) | 2015-05-13 |
| CN104610948B true CN104610948B (en) | 2017-08-25 |
Family
ID=53145603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510053703.5A Active CN104610948B (en) | 2015-02-02 | 2015-02-02 | A kind of anti-shallow-layer stream phosphor aluminate cement slurry of deep water cementing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104610948B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582638A (en) * | 2021-08-18 | 2021-11-02 | 交通运输部公路科学研究所 | Constant negative temperature hydrated concrete for plateau permafrost pile foundation and preparation method thereof |
| CN114046003B (en) * | 2021-12-03 | 2023-03-24 | 广东博竣建设工程有限公司 | Method for reinforcing steel strand mesh polymer mortar of wall |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747880A (en) * | 2009-12-29 | 2010-06-23 | 中国石油天然气集团公司 | Deep-water low-temperature low-density early-strength cementing slurry for well cementation |
| CN102559161A (en) * | 2011-12-16 | 2012-07-11 | 中国石油大学(华东) | Carbon dioxide corrosion resisting cement system for oil-gas well cementation |
-
2015
- 2015-02-02 CN CN201510053703.5A patent/CN104610948B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101747880A (en) * | 2009-12-29 | 2010-06-23 | 中国石油天然气集团公司 | Deep-water low-temperature low-density early-strength cementing slurry for well cementation |
| CN102559161A (en) * | 2011-12-16 | 2012-07-11 | 中国石油大学(华东) | Carbon dioxide corrosion resisting cement system for oil-gas well cementation |
Non-Patent Citations (1)
| Title |
|---|
| 锂盐早强剂改善油井水泥的低温性能及其作用机理;王成文;《石油学报》;20110115;第32卷(第1期);第140-144页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104610948A (en) | 2015-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105462571B (en) | A kind of low temperature well cementing mortar architecture and composition | |
| CN106986584B (en) | Low-temperature high-strength and high-toughness cement slurry as well as preparation method and application thereof | |
| CN102382633B (en) | Silicate grout for deep water | |
| CN110358513B (en) | Bridging leak stoppage slurry and preparation method thereof | |
| CN107056158A (en) | Closure channeling control cement slurry for easily missing slim-hole or the well cementation of narrow gap annular | |
| CN104610948B (en) | A kind of anti-shallow-layer stream phosphor aluminate cement slurry of deep water cementing | |
| CN101974317A (en) | Sulphoaluminate cement paste for deepwater cementing | |
| CN111808224B (en) | Copolymer and preparation method thereof, application of copolymer as plugging agent, oil-based drilling fluid and application of oil-based drilling fluid | |
| CN111040752B (en) | Low-adsorption fracturing fluid system and preparation method thereof | |
| CN105038744A (en) | Novel high-temperature cementing working fluid system and composition thereof | |
| CN109535317B (en) | High-temperature-resistant calcium-resistant oil-gas reservoir water-based drilling fluid filtrate reducer, drilling fluid and application of drilling fluid | |
| CN109650788B (en) | Gas storage layer plugging material for drilling fluid | |
| Wang et al. | Properties and self-healing behavior of oil absorbent microspheres modified cement | |
| CN107325799A (en) | A kind of oil-well cement acrylic compounds fluid loss agent and its preparation method and application | |
| US20140048265A1 (en) | Cohesive settable cement system | |
| CN110157396B (en) | Self-plugging anti-channeling well cementing fluid | |
| CN114479789B (en) | High-temperature high-pressure expandable plugging agent composition, preparation method and application thereof | |
| CN102977867B (en) | Protective agent for hydrocarbon reservoir and preparation method thereof | |
| CN115505070A (en) | High-temperature-resistant expansion fiber resin plugging material, preparation method thereof and application thereof in leak prevention and plugging of well cementation cement slurry | |
| CN113444505A (en) | Self-adaptive leaking stoppage spacer fluid system and preparation method thereof | |
| CN101870753A (en) | Polymer for high-temperature cement retarder and preparation method thereof | |
| CN106517852A (en) | Modified aluminate cement retarder compounded from AMPS copolymer pre-chelated with aluminum ions, and borate and preparation method thereof | |
| CN106832081B (en) | A kind of oil exploitation oil-soluble resin and its preparation method and application | |
| CN104531112A (en) | Water-loss control agent for oil-well cement and preparation method thereof | |
| CN114686191B (en) | Gel blocking agent and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Co-patentee after: Yangtze University Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation Co-patentee before: Yangtze University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191211 Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC research institute limited liability company Patentee before: China Offshore Oil Group Co., Ltd. Co-patentee before: Yangtze University |