CN114409302A - High-temperature-resistant tough oil well cement admixture and preparation method thereof - Google Patents
High-temperature-resistant tough oil well cement admixture and preparation method thereof Download PDFInfo
- Publication number
- CN114409302A CN114409302A CN202210065151.XA CN202210065151A CN114409302A CN 114409302 A CN114409302 A CN 114409302A CN 202210065151 A CN202210065151 A CN 202210065151A CN 114409302 A CN114409302 A CN 114409302A
- Authority
- CN
- China
- Prior art keywords
- temperature
- oil well
- well cement
- cement admixture
- powder
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/022—Agglomerated materials, e.g. artificial aggregates agglomerated by an organic binder
-
- 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Products (AREA)
Abstract
The invention discloses a high-temperature-resistant and tough oil well cement admixture and a preparation method thereof, and relates to the technical field of oil and gas field development and well cementation materials. The high-temperature-resistant tough oil well cement admixture comprises the following raw materials in percentage by weight: 60% -70% of high-temperature strength stabilizing material; 20% of high-temperature strength reinforcing material; 10-20% of high-temperature toughening material; the high-temperature strength reinforcing material is a mixture formed by mixing silicon nitride and organic silicon resin micro powder according to the proportion of 1:1 or 1.5: 1; the high-temperature toughening material is polyether-ether-ketone resin. The high-temperature-resistant tough oil well cement admixture has the characteristics of high-temperature-resistant strength decay and toughening, and is green and environment-friendly and low in cost.
Description
Technical Field
The invention relates to the technical field of oil and gas field development and well cementation materials, in particular to a high-temperature-resistant and tough oil well cement admixture and a preparation method thereof.
Background
Aiming at the increasingly severe problem of energy shortage, the search for new clean energy with large resource amount and strong reproducibility has important strategic significance. In geothermal resources, a thermal reservoir has the characteristics of large reserve capacity, wide distribution, good stability, high utilization rate and the like, and is an environment-friendly and clean green energy. In the process of exploiting the thermal reservoir, the performance of the cement-based well cementing material in a high-temperature environment is the key for ensuring the well cementing quality, and plays a decisive role in exploiting the thermal reservoir. Aiming at the key technical problems of fluidity control, strength attenuation at high temperature, brittle failure and the like of the conventional cement-based well cementing material in the process of exploiting and cementing a thermal reservoir, the method has important engineering significance and scientific value for systematically researching a system for exploiting the cement-based well cementing material in the thermal reservoir.
The invention discloses an invention patent application with the publication number of CN107902933A in 2018, 4 and 13, and the name of the invention is 'high-temperature recession resistant admixture for oil well cement and a preparation method thereof', and the invention patent application solves the problem that a cement slurry system is not suitable for cementing a geothermal well existing at the same time of ultrahigh temperature and ultrahigh temperature difference. The invention discloses a high temperature recession resistant external admixture which comprises 40-60% of photovoltaic silicon; 15% -30% fumed silica; 15 to 30 percent of dead burned magnesia; 1-2% of mineral fiber. The invention can effectively ensure the compressive strength above 200 ℃ and achieve the effect of reducing the decline of the compressive strength.
The invention patent application with the publication number of CN109679600A and the name of 'nano-material mixed modified ultra-high temperature high-performance well cementation cement slurry system and a preparation method thereof' is published as 26/4/2019, and the well cementation cement slurry system disclosed by the invention patent application comprises the following components in percentage by weight: 100 parts of oil well cement, 15-25 parts of coarse silica sand, 15-20 parts of fine silica sand, 1-10 parts of nano silicon dioxide, 1-10 parts of nano calcium carbonate, 0.2-1 part of defoaming agent, 4-10 parts of fluid loss additive, 0-3 parts of drag reducer, 0.5-4 parts of retarder and 30-100 parts of water. The cement paste system has excellent compressive strength and toughness under the condition of ultrahigh temperature, and the compressive strength and the elastic modulus do not change obviously along with the extension of maintenance time.
The invention patent application published as 30/3/2021 and having publication number CN112574730A entitled "an inhibitor of strength deterioration of oil well cement" discloses an inhibitor of strength deterioration comprising the following components: component (1), silicon dioxide, 30-60 parts; 40-70 parts of component (2), aluminum oxide. The inhibitor for the decline of the oil well cement strength can change cement hydration products, improve the compactness of set cement, and reduce the porosity and permeability of the set cement, so that the decline of the oil well cement strength under the complex high-temperature conditions of the ultra-deep well can be effectively inhibited, the application temperature range is wide, and the adverse effect on the cement slurry performance can not be generated.
The prior art is researched aiming at the problem that the compressive strength of cement is declined in a high-temperature environment, the research on the toughness of the cement in the ultra-high-temperature environment is less, and the toughness is an important index of a set cement in the ultra-high-temperature environment. Therefore, it is important to develop a material which is suitable for the ultra-high temperature environment and can ensure the strength of the cement not to decline and ensure the toughness of the cement.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention provides the high-temperature-resistant and tough oil well cement admixture and the preparation method thereof. The oil well cement admixture comprises 60-70% of high-temperature strength temperature material and 20% of high-temperature strength reinforcing material in percentage by weight; 10-20% of high-temperature toughening material. The high-temperature-resistant tough oil well cement admixture has the characteristics of high-temperature strength decay resistance and toughening.
In order to solve the problems in the prior art, the invention is realized by the following technical scheme.
The invention provides a high-temperature-resistant tough oil well cement admixture which comprises the following raw materials in percentage by weight:
60% -70% of high-temperature strength stabilizing material;
20% of high-temperature strength reinforcing material;
10-20% of high-temperature toughening material;
the high-temperature strength reinforcing material is a mixture formed by mixing silicon nitride and organic silicon resin micro powder; the high-temperature toughening material is polyether-ether-ketone resin.
Further, the high-temperature strength reinforcing material is a mixture formed by mixing silicon nitride and organic silicon resin micro powder according to the proportion of 1: 1.
Further, the high-temperature strength reinforcing material is a mixture formed by mixing silicon nitride and organic silicon resin micro powder according to the proportion of 1.5: 1.
Furthermore, the high-temperature strength stable material is waste refractory brick powder, and SiO in the waste refractory brick powder2The content of the powder is more than or equal to 95 percent, and the fineness of the powder is more than or equal to 800 meshes.
The organic silicon resin micro powder is white powder, the content of active substances is more than 99 percent, and the fineness of the powder is more than or equal to 800 meshes.
The invention provides a preparation method of a high-temperature-resistant tough oil well cement admixture, which comprises the following steps: and mixing the high-temperature strength stabilizing material, the high-temperature strength reinforcing material and the high-temperature toughening material according to the proportion to obtain the high-temperature toughness resistant oil well cement admixture.
Compared with the prior art, the beneficial technical effects brought by the invention are as follows:
1. the high-temperature-resistant tough oil well cement admixture has the characteristics of high-temperature-resistant strength decay and toughening, and is green and environment-friendly and low in cost.
2. The high-temperature reinforced material has strong corrosion resistance and high-temperature resistance, can resist thermal shock, improves the high-temperature strength, and prevents the strength decay of the set cement in a high-temperature environment. The organic silicon resin has small grain size, the main chain structure of the molecule is-O-Si-O-, the silicon-oxygen bond is stable and is not easy to break, the filling effect can be realized in the cement, the number and the size of pores are reduced, and therefore, the cement stone has high temperature resistance and does not have strength decay.
3. In the cement slurry reaction process, the high-temperature toughening particles and the cement slurry particles are mutually interpenetrated and mutually aggregated, so that the cementing strength among hydration products in the matrix is improved. Because the structure of the high-temperature toughening particles has a strong flexible effect, the stress is relatively dispersed, the brittleness of the set cement is reduced, and the elastic toughness of the set cement is improved to a certain extent.
4. The waste refractory brick powder is selected as a high-temperature strength stable material, so that solid waste can be effectively recycled, and the main component of the waste refractory brick is silicon dioxide, so that the performance requirement of a high-temperature well cementation material is met.
5. The high-temperature-resistant tough oil well cement admixture provided by the invention ensures the calcium-silicon ratio and high-temperature strength of a cement paste system by utilizing the characteristics of high silica content, large specific surface area, high surface activity and the like of waste refractory bricks. The high-temperature reinforced material is formed by the mutual matching of organic groups and inorganic structures, so that the mechanical property and flexibility of the material are enhanced. The high-temperature toughness material is a high polymer consisting of a repeating unit containing one ketone bond and two ether bonds in a main chain structure, and the special structure of the high-temperature toughness material can not only improve the flexibility of the material, but also enhance the mechanical strength of the material to a certain extent. According to the synergistic action principle, the high-temperature resistant tough admixture formed by mutually matching organic materials and inorganic materials and mixing the organic materials and the inorganic materials according to a certain proportion has the characteristics of environmental protection, high temperature resistance, high mechanical strength, good flexibility and low cost.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following examples all prepare cement slurries according to the GB/T19139 standard, wherein the G-grade oil well cement is provided by Jiahua special cement company, high temperature retarder and high temperature fluid loss additive are provided by Sichuan Asahi lanchen new material company, and the high temperature retarder is AMPS-based polymer; 2-acrylamide-2-methylpropanesulfonic acid polymer of high-temperature fluid loss agent. The high-temperature stabilizer is clay mineral. And the proportions of the grade G oil well cement, the high-temperature retarder, the high-temperature fluid loss additive, the high-temperature strength and toughness resistant oil well cement admixture and the high-temperature stabilizer used in the following examples are the same.
Example 1
As a preferred embodiment of the present invention, the specific composition of the high temperature resistant tough admixture for oil well cement used in this embodiment is as follows:
the high-temperature strength temperature material is waste gas refractory brick powder, and SiO in the waste gas refractory brick powder2The content of the powder is more than or equal to 95 percent, and the powder fineness is more than or equal to 800 meshes; the high-temperature strength reinforcing material is a mixture of silicon nitride micro powder and organic silicon resin micro powder which are mixed according to the mass ratio of 3: 2; the high-temperature toughening material is polyether-ether-ketone resin. And (3) preparing cement slurry by the admixture according to the GB/T19139 standard, wherein the water cement ratio is 0.44, and thus obtaining the well cementation cement slurry system.
Example 2
As another preferred embodiment of this embodiment, the specific composition of the high temperature resistant tough admixture for oil well cement used in this embodiment is as follows:
the high-temperature strength temperature material is waste gas refractory brick powder, and SiO in the waste gas refractory brick powder2The content of the powder is more than or equal to 95 percent, and the powder fineness is more than or equal to 800 meshes; the high-temperature strength reinforcing material is a mixture of silicon nitride micro powder and organic silicon resin micro powder which are mixed according to the mass ratio of 3: 2; the high-temperature toughening material is polyether-ether-ketone resin. And (3) preparing cement slurry by the admixture according to the GB/T19139 standard, wherein the water cement ratio is 0.44, and thus obtaining the well cementation cement slurry system.
Example 3
As another preferred embodiment of the present invention, the specific composition of the admixture for high temperature resistant toughness-reducing oil well cement used in this embodiment is as follows:
the high-temperature strength temperature material is waste gas refractory brick powder, and SiO in the waste gas refractory brick powder2The content of the powder is more than or equal to 95 percent, and the powder fineness is more than or equal to 800 meshes; the high-temperature strength reinforcing material is a mixture of silicon nitride micro powder and organic silicon resin micro powder which are mixed according to the mass ratio of 3: 2; the high-temperature toughening material is polyether-ether-ketone resin. And (3) preparing cement slurry by the admixture according to the GB/T19139 standard, wherein the water cement ratio is 0.44, and thus obtaining the well cementation cement slurry system.
Example 4
As another preferred embodiment of the present invention, the specific composition of the high temperature resistant tough admixture for oil well cement used in this embodiment is as follows:
the high-temperature strength temperature material is waste gas refractory brick powder, and SiO in the waste gas refractory brick powder2The content of the powder is more than or equal to 95 percent, and the powder fineness is more than or equal to 800 meshes; the high-temperature strength reinforcing material is a mixture of silicon nitride micro powder and organic silicon resin micro powder which are mixed according to the mass ratio of 1: 1; the high-temperature toughening material is polyether-ether-ketone resin. And (3) preparing cement slurry by the admixture according to the GB/T19139 standard, wherein the water cement ratio is 0.44, and thus obtaining the well cementation cement slurry system.
Example 5
As another preferred embodiment of the present invention, this example is to test the engineering performance of the cement paste obtained in examples 1 to 4. The 210 ℃ experiment was carried out according to the following recipe: the grade G oil well cement (based on 100 percent of grade G oil well cement), 45 percent of high-temperature resistant tough oil well cement admixture, 2 percent of high-temperature stabilizer, 1.5 percent of high-temperature retarder and 6 percent of high-temperature fluid loss additive. The results of the experiments are shown in the following table:
according to the experimental data in the table above, it can be obtained that the slurry prepared in the embodiments 1 to 4 has good high-temperature engineering performance and meets the construction requirements. The high-temperature-resistant high-strength tough oil well cement admixture has good compatibility with a high-temperature retarder, a fluid loss additive and the like, is safe, can control pumping time, and is beneficial to improving the construction safety of high-temperature well cementation operation.
Example 6
As another preferred embodiment of the present invention, the cement paste samples obtained in the above examples 1-4 and using 800 mesh quartz sand instead of the admixture of the present application were poured into a copper mold to be molded and then placed into a high temperature curing kettle for curing, wherein the curing temperature is 260 ℃ and the curing period is 2d, 7d, and 28 d. The compression strength was tested using a NYSQ-2017 compression tester, and the test results are shown in the following table. The tests were carried out according to the following formulation: g-grade oil well cement (calculated by 100 percent of G-grade oil well cement), 45 percent of high-temperature resistant tough oil well cement admixture, 2 percent of high-temperature stabilizer, 1.5 percent of high-temperature retarder and 6 percent of high-temperature fluid loss additive; g-grade oil well cement (calculated by 100 percent of G-grade oil well cement) +45 percent of 800-mesh quartz sand, 2 percent of high-temperature stabilizer, 1.5 percent of high-temperature retarder and 6 percent of high-temperature fluid loss additive.
As can be seen from the data in the table, after curing for a certain age period in examples 1-4, the compressive strength did not decline, but the strength of the sample added with 800 mesh quartz sand seriously declined. The cement paste system provided by the technical scheme of the invention has high internal structure compactness and good temperature-resistant material performance, so that the high temperature resistance is better.
Example 7
As another preferred embodiment of the present invention, the cement paste samples obtained in the above-mentioned examples 1 to 4 and the cement paste samples obtained by adding 800 mesh quartz sand were poured into a copper mold to be molded and then placed into a high temperature curing kettle to be cured at a curing temperature of 260 ℃ for 2d, 7d and 28 d. Coring the cured and molded cement stone, and then testing the triaxial mechanical property. According to GB/T50266-2013 'engineering rock mass test method Standard', an RTR-1000 type triaxial rock mechanical test device used in the experiment has the following detection results shown in the following table:
according to the above cases, by adopting the technical scheme of the invention, after the specific high-temperature strength stabilizer, the high-temperature strength reinforcing agent and the high-temperature toughness material are added, the toughness and the high-temperature strength stability of the well cementation cement are effectively improved, and the obtained product of the cement paste after solidification has excellent high-temperature resistance and toughness, and can meet the performance requirements of the cement paste of the high-temperature well cementation engineering.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (6)
1. The high temperature resistant tough oil well cement admixture is characterized in that: the high-temperature-resistant tough oil well cement admixture is composed of the following raw materials in percentage by weight:
60% -70% of high-temperature strength stabilizing material;
20% of high-temperature strength reinforcing material;
10-20% of high-temperature toughening material;
the high-temperature strength reinforcing material is a mixture formed by mixing silicon nitride and organic silicon resin micro powder; the high-temperature toughening material is polyether-ether-ketone resin.
2. The high temperature resistant tough oil well cement admixture as claimed in claim 1, wherein: the high-temperature strength reinforcing material is a mixture formed by mixing silicon nitride and organic silicon resin micro powder according to the proportion of 1: 1.
3. The high temperature resistant tough oil well cement admixture as claimed in claim 1, wherein: the high-temperature strength reinforcing material is a mixture formed by mixing silicon nitride and organic silicon resin micro powder according to the proportion of 1.5: 1.
4. The high temperature resistant tough oil well cement admixture as claimed in any one of claims 1 to 3, wherein: the high-temperature strength stable material is waste refractory brick powder, and SiO in the waste refractory brick powder2The content of the powder is more than or equal to 95 percent, and the fineness of the powder is more than or equal to 800 meshes.
5. The high temperature resistant tough oil well cement admixture as claimed in any one of claims 1 to 3, wherein: the organic silicon resin micro powder is white powder, the content of active substances is more than 99 percent, and the fineness of the powder is more than or equal to 800 meshes.
6. The method for preparing the high temperature resistant tough oil well cement admixture as claimed in any one of claims 1 to 3, wherein: and mixing the high-temperature strength stabilizing material, the high-temperature strength reinforcing material and the high-temperature toughening material according to the proportion to obtain the high-temperature toughness resistant oil well cement admixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210065151.XA CN114409302B (en) | 2022-01-20 | 2022-01-20 | High-temperature-resistant tough oil well cement admixture and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210065151.XA CN114409302B (en) | 2022-01-20 | 2022-01-20 | High-temperature-resistant tough oil well cement admixture and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114409302A true CN114409302A (en) | 2022-04-29 |
| CN114409302B CN114409302B (en) | 2023-01-20 |
Family
ID=81275153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210065151.XA Active CN114409302B (en) | 2022-01-20 | 2022-01-20 | High-temperature-resistant tough oil well cement admixture and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114409302B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098657A (en) * | 2017-06-07 | 2017-08-29 | 南京理工大学 | With enhanced functionally gradient cement-base composite material of nano material and preparation method thereof |
| CN109250972A (en) * | 2018-11-26 | 2019-01-22 | 中国海洋石油集团有限公司 | A kind of thick oil thermal extraction high temperature resistant Elastic well cementation cement paste system and preparation method thereof |
| CN109320120A (en) * | 2018-10-31 | 2019-02-12 | 嘉华特种水泥股份有限公司 | A kind of oil-well cement extra material for high temperature well cementation |
| CN110606717A (en) * | 2019-11-01 | 2019-12-24 | 江苏苏博特新材料股份有限公司 | Concrete reinforcing additive and application thereof in ultra-high strength concrete |
| CN112456877A (en) * | 2020-12-10 | 2021-03-09 | 嘉华特种水泥股份有限公司 | High-temperature well cementation cement system for hot dry rock water injection well |
| CN112961658A (en) * | 2021-03-09 | 2021-06-15 | 嘉华特种水泥股份有限公司 | Long-sealing-section large-temperature-difference cement slurry system for well cementation |
| CN113403010A (en) * | 2021-05-25 | 2021-09-17 | 安徽大松树脂有限公司 | High-temperature-resistant epoxy resin adhesive and preparation method thereof |
-
2022
- 2022-01-20 CN CN202210065151.XA patent/CN114409302B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098657A (en) * | 2017-06-07 | 2017-08-29 | 南京理工大学 | With enhanced functionally gradient cement-base composite material of nano material and preparation method thereof |
| CN109320120A (en) * | 2018-10-31 | 2019-02-12 | 嘉华特种水泥股份有限公司 | A kind of oil-well cement extra material for high temperature well cementation |
| CN109250972A (en) * | 2018-11-26 | 2019-01-22 | 中国海洋石油集团有限公司 | A kind of thick oil thermal extraction high temperature resistant Elastic well cementation cement paste system and preparation method thereof |
| CN110606717A (en) * | 2019-11-01 | 2019-12-24 | 江苏苏博特新材料股份有限公司 | Concrete reinforcing additive and application thereof in ultra-high strength concrete |
| CN112456877A (en) * | 2020-12-10 | 2021-03-09 | 嘉华特种水泥股份有限公司 | High-temperature well cementation cement system for hot dry rock water injection well |
| CN112961658A (en) * | 2021-03-09 | 2021-06-15 | 嘉华特种水泥股份有限公司 | Long-sealing-section large-temperature-difference cement slurry system for well cementation |
| CN113403010A (en) * | 2021-05-25 | 2021-09-17 | 安徽大松树脂有限公司 | High-temperature-resistant epoxy resin adhesive and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114409302B (en) | 2023-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110256023B (en) | Anti-freezing, anti-permeability and anti-cracking concrete and preparation method thereof | |
| CN106517934B (en) | One kind mixing early strong ultra-high performance concrete of alkali-activator and preparation method thereof | |
| CN108059382B (en) | Concrete glue reducing agent and preparation method thereof | |
| CN110845212B (en) | Seepage erosion resistant concrete and preparation method thereof | |
| CN103896527A (en) | Lightweight high-strength cement based composite material | |
| CN105272004A (en) | Light-weight high-strength cement-based composite material | |
| CN109942235B (en) | Normal-temperature curing geopolymer concrete with high strength and high anti-carbonization performance and preparation method thereof | |
| CN109279861B (en) | Self-compacting composite concrete, preparation method thereof and concrete wall brick | |
| CN111620624B (en) | Self-compacting concrete and preparation method thereof | |
| CN110498630B (en) | Concrete composite additive, preparation method thereof and concrete | |
| Barbero-Barrera et al. | Influence of the addition of waste graphite powder on the physical and microstructural performance of hydraulic lime pastes | |
| CN112694292A (en) | Low-shrinkage high-strength red mud-slag geopolymer and preparation method thereof | |
| CN115321858B (en) | Cementing material, preparation method thereof and application of composition | |
| CN109665769A (en) | A kind of super hardening high performance concrete and preparation method thereof | |
| CN111470821A (en) | High-performance fiber concrete and preparation method thereof | |
| CN108083679B (en) | Concrete glue reducing agent and preparation method thereof | |
| CN114380568A (en) | Low-temperature early-strength high-toughness well cementing material | |
| Nguyen-Tuan et al. | Experimental study on mechanical and hydraulic properties of porous geopolymer concrete | |
| CN112876175A (en) | Self-curing recycled brick-concrete aggregate concrete and preparation method thereof | |
| CN112028570A (en) | Active powder grouting material and preparation method thereof | |
| CN110937868A (en) | Self-compacting hybrid fiber concrete and preparation method thereof | |
| CN110550904A (en) | nano-magnesia high-performance micro-expansive concrete and preparation method and application thereof | |
| CN116813280B (en) | Corrosion-resistant high-fracture-resistance recycled aggregate pervious concrete and preparation method thereof | |
| CN114350334B (en) | High-temperature-resistant tough well cementation cement slurry system | |
| CN114409302B (en) | High-temperature-resistant tough oil well cement admixture and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |