CN104099072A - Low temperature oil well early strength well cementing agent - Google Patents
Low temperature oil well early strength well cementing agent Download PDFInfo
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- CN104099072A CN104099072A CN201410268136.0A CN201410268136A CN104099072A CN 104099072 A CN104099072 A CN 104099072A CN 201410268136 A CN201410268136 A CN 201410268136A CN 104099072 A CN104099072 A CN 104099072A
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- Prior art keywords
- well
- low temperature
- temperature oil
- cement
- agent
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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
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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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
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/30—Water reducers, plasticisers, air-entrainers, flow improvers
- C04B2103/302—Water reducers
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to an oil field chemical, in particular to a low temperature oil well early strength well cementing agent, which is characterized by being prepared by mixing of the following raw materials by weight: 85-95% of an ionic liquid and 5-15% of a polycarboxylate superplasticizer. The polycarboxylate superplasticizer is obtained by polymerization of polymaleic anhydride and methoxypolyethylene glycol, the functional group mole ratio of methoxypolyethylene glycol to polymaleic anhydride is 0.8-1:15. With the dual efficacy of early strength and freezing prevention, the well cementing agent provided by the invention has a high promoting effect on early strength improvement of a well cementing liquid, and has no unfavorable influence on 28d strength. Sodium chloride able to cause negative effects on cement slurry later strength and sodium nitrite are not adopted by the well cementing agent provided by the invention, thus avoiding environment and construction personnel health problems caused thereby.
Description
Technical field
The present invention relates to a kind of oil field chemical, specifically early strong well agent of a kind of low temperature oil well.
Background technology
Along with deepening continuously of petroleum natural gas exploration, oil gas drilling well cementation is more and more.Under cold condition, because hydration rate is slow, the slow setting time is long, easily there is oil gas water breakthrough in grout on the one hand in condensing process, affect interlayer packing.On the other hand, because strength of cement slower development, early strength are low, cause increase construction cycle, reduce oilfield prospecting developing economic benefit.This just need to use low-temperature early strength agent, accelerate the hydration rate of cement under cold condition, promote the development of Behavior of Hardened Cement Paste early strength, reach and can prevent oil gas water breakthrough, become a critical restriction problem so the object that can shorten again construction cycle improves the early strength of grout.
And traditional early strength antifreezing agent often contains inorganic villaumite, such as sodium-chlor and nitrous acid or vitriol.Chinese patent (ZL200710190542.X) has openly been authorized a kind of hardening accelerator of concrete water mud, but regrettably it has used the components such as inorganic sodium-chlor, vitriol and Sodium Nitrite.The use of these components, neither environmental protection, can damage workmen's health, also can have a negative impact to the weather resistance of grout.Chinese patent (ZL00116214.4) needs cement, yellow sand and aggregate element to adjust.This is substantially infeasible in Hydroelectric Project Construction, supplies goods and materials because above-mentioned materials is first, and Party A can not adjust it after determining.Chinese patent (ZL92103627.2) adopts sucrose, sucrose to react the product obtaining with calcium oxide to improve the freeze proof of grout and epistasis energy early.But in above-mentioned all open or schemes of authorizing, in anti-silicate cement, aforesaid method is invalid.
Along with the demand of China's energy, the dynamics of the engineering construction of Oil/gas Well, coal mine constantly increases, and just needs the antifreeze and early strong admixture of the novel grout of development and application to improve the early strength of grout, to improve operating efficiency and speed.Novel antifreeze morning of strong admixture also will meet energy-saving and emission-reduction and eco-friendly development strategy.
Summary of the invention
The invention provides the early strong well agent of a kind of low temperature oil well, improve the early strength of grout.
The concrete technical scheme adopting of the present invention is:
The early strong well agent of a kind of low temperature oil well, is characterized in that, is obtained by mixing by the raw material of following weight percent:
Ionic liquid 85 ?95%
High-efficiency water-reducing agent of poly-carboxylic acid 5 ?15%
Wherein, the structural formula of ionic liquid is:
The effect of composite water-reducing agent of the present invention is to reduce cement consumption, wherein, described high-efficiency water-reducing agent of poly-carboxylic acid is polymaleic anhydride and poly glycol monomethyl ether polymerization and obtain, and more preferably, functional group's mol ratio of poly glycol monomethyl ether and polymaleic anhydride is 0.8～1:15.Through applicant's checking, the water reducer of this ratio makes pulp flowage good.
The present invention is as antifreeze accelerating component, and addition content is cement quality 0.1%～10%, especially taking 1% ?3% as best.
The water cement ratio of suitable grout is 0.30～0.50, especially taking 0.30～0.40 as best.
Applicable use temperature is at 5 DEG C～35 DEG C, especially taking 15 DEG C～25 DEG C as best.
Suitable cement is the sulfate resisting Portland cement that silicate cement, particularly tricalcium silicate and tricalcium aluminate content are low.
Adopt this ionic liquid be antifreeze morning the instillation process of grout of strong admixture can be pumping and stream pipe gravity transfer two kinds of modes.
Compared with prior art, beneficial effect of the present invention is:
1) the present invention does not use the sodium-chlor that can cause negative impact to grout later strength; The present invention does not use early strong widely used Sodium Nitrite of grout, thereby has avoided the environment that causes thus and workmen's health problem.
2) the present invention has early strong and antifreeze double effects concurrently, has high promoter action for strong raising morning of cementing fluid, to 28 days intensity without any adverse influence.
3) volume of the present invention is low, and water-reducing rate is high, shrinks littlely, increases substantially concrete early stage, later strength.
4) ionic liquid of the present invention can significantly reduce the surface tension of grout, can make the zeta current potential of cement granules increase, the specific conductivity that has improved the hydrated cementitious initial stage promotes the dissolving of each cement minerals, accelerated ettringite and high silico-calcium ratio C ?S ?the formation of H gel, also can impel hydrated cementitious speed to accelerate simultaneously, make the formation of diaspore also fast to cubes crystal conversion, thereby play good rapid hardening effect.
Embodiment
To describe more comprehensively the present invention below by concrete case study on implementation.
The basic proportioning of cement based ionic liquid injection material that test is researched and developed in recent years taking us is foundation, and water cement ratio is 0.30-0.50; Ionic liquid hardening accelerator volume 0.1%～10%; In process of the test, keep basic proportioning constant, adjust according to certain rules volume and the kind of water reducer or hardening accelerator, investigate kind and the impact of volume on strength cement-based grouting material performance of this kind of functional component.All tests are all to complete under the room temperature of 20 DEG C of left and right.
(1) fluidity test: press JTJ041-2000, " highway bridge and culvert construction technique normalizing " annex G 1 carries out, and test-results is 3 average value measured;
(2) mechanical property test: undertaken by GB/T17671-1999 " Test method for strength of hydraulic cement mortar (ISO method) ";
(3) test time of coagulation: undertaken by JGJ70 mono-l990 " building mortar basic performance tests method ";
Embodiment 1
85 parts of ionic liquids, 15 parts of high-efficiency water-reducing agent of poly-carboxylic acid, wherein, ionic liquid structural formula:
Adopt sulfate resisting Portland cement in PO52.5, controlling grout water cement ratio is 0.37, and volume 0.8%, tests according to above-mentioned experimentation, the results are shown in following table:
Performance test
Embodiment 2
90 parts of ionic liquids, 10 parts of high-efficiency water-reducing agent of poly-carboxylic acid, wherein, ionic liquid structural formula:
Adopt sulfate resisting Portland cement in PO52.5, controlling grout water cement ratio is 0.37, and volume 1.0%, tests according to above-mentioned experimentation, the results are shown in following table:
Performance test
Embodiment 3
95 parts of ionic liquids, 5 parts of high-efficiency water-reducing agent of poly-carboxylic acid, wherein, ionic liquid structural formula:
Adopt sulfate resisting Portland cement in PO52.5, controlling grout water cement ratio is 0.36, and volume 0.9%, tests according to above-mentioned experimentation, the results are shown in following table:
Performance test
Embodiment 4
90 parts of ionic liquids, 10 parts of high-efficiency water-reducing agent of poly-carboxylic acid, wherein, ionic liquid structural formula:
Adopting sulfate resisting Portland cement control grout water cement ratio in PO52.5 is 0.36, and volume 1.0%, tests according to above-mentioned experimentation, the results are shown in following table:
Performance test
。
Claims (4)
1. an early strong well agent of low temperature oil well, is characterized in that, is obtained by mixing by the raw material of following weight percent:
Ionic liquid 85-95%
High-efficiency water-reducing agent of poly-carboxylic acid 5-15%
Wherein, the structural formula of ionic liquid is:
2. early strong well agent of low temperature oil well according to claim 1, is characterized in that, described high-efficiency water-reducing agent of poly-carboxylic acid is polymaleic anhydride and poly glycol monomethyl ether polymerization and obtain, and functional group's mol ratio of poly glycol monomethyl ether and polymaleic anhydride is 0.8～1:15.
3. early strong well agent of low temperature oil well according to claim 1, is characterized in that, described well cementation agent addition content is cement quality 0.1%～10%.
4. early strong well agent of low temperature oil well according to claim 3, is characterized in that, described cement is silicate cement, and the water cement ratio of grout is 0.30～0.50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268136.0A CN104099072B (en) | 2014-06-17 | 2014-06-17 | A kind of early strong well agent of low temperature oil-well |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268136.0A CN104099072B (en) | 2014-06-17 | 2014-06-17 | A kind of early strong well agent of low temperature oil-well |
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| Publication Number | Publication Date |
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| CN104099072A true CN104099072A (en) | 2014-10-15 |
| CN104099072B CN104099072B (en) | 2017-09-22 |
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| CN201410268136.0A Active CN104099072B (en) | 2014-06-17 | 2014-06-17 | A kind of early strong well agent of low temperature oil-well |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609108A (en) * | 2019-01-30 | 2019-04-12 | 北京大德广源石油技术服务有限公司 | High temperature and pressure well cementation additive |
| CN111548043A (en) * | 2020-05-15 | 2020-08-18 | 澳门大学 | Cement-based slurry filled with ionic liquid as special sacrificial agent for polycarboxylate water reducer and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967369A (en) * | 2010-08-16 | 2011-02-09 | 山东大学 | Comb-like polymer fluid loss additive for drilling fluid and preparation method thereof |
| CN102250595A (en) * | 2011-05-19 | 2011-11-23 | 中国石油天然气集团公司 | Drilling fluid used for active mud shale drilling |
| CN102391842A (en) * | 2011-09-28 | 2012-03-28 | 中国石油化工集团公司 | Polyamine drilling fluid |
| CN102424746A (en) * | 2011-09-28 | 2012-04-25 | 中国石油化工集团公司 | Strongly inhibitory solid-free polyamine-formate drilling fluid system |
-
2014
- 2014-06-17 CN CN201410268136.0A patent/CN104099072B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967369A (en) * | 2010-08-16 | 2011-02-09 | 山东大学 | Comb-like polymer fluid loss additive for drilling fluid and preparation method thereof |
| CN102250595A (en) * | 2011-05-19 | 2011-11-23 | 中国石油天然气集团公司 | Drilling fluid used for active mud shale drilling |
| CN102391842A (en) * | 2011-09-28 | 2012-03-28 | 中国石油化工集团公司 | Polyamine drilling fluid |
| CN102424746A (en) * | 2011-09-28 | 2012-04-25 | 中国石油化工集团公司 | Strongly inhibitory solid-free polyamine-formate drilling fluid system |
Non-Patent Citations (1)
| Title |
|---|
| 莫祥银等: "聚羧酸盐系高性能减水剂研究进展及评述", 《混凝土》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609108A (en) * | 2019-01-30 | 2019-04-12 | 北京大德广源石油技术服务有限公司 | High temperature and pressure well cementation additive |
| CN111548043A (en) * | 2020-05-15 | 2020-08-18 | 澳门大学 | Cement-based slurry filled with ionic liquid as special sacrificial agent for polycarboxylate water reducer and preparation method thereof |
| CN111548043B (en) * | 2020-05-15 | 2021-12-03 | 澳门大学 | Cement-based slurry filled with ionic liquid as special sacrificial agent for polycarboxylate water reducer and preparation method thereof |
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| CN104099072B (en) | 2017-09-22 |
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| CB03 | Change of inventor or designer information |
Inventor after: Wang Minquan Inventor after: Tian Bing Inventor after: Yu Bing Inventor after: Wang Xinyu Inventor before: Wang Minquan Inventor before: Tian Bing |
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Effective date of registration: 20200415 Address after: Tangshan Huantai County town of Shandong city of Zibo province Xu Dian Cun 256400 Patentee after: Shandong Juxin New Material Co., Ltd Address before: Tangshan Huantai County town of Shandong city of Zibo province Xu Dian Cun 256401 Patentee before: SHANDONG JUXIN CHEMICAL Co.,Ltd. |
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Denomination of invention: An early strength cementing agent for low temperature oil wells Effective date of registration: 20210916 Granted publication date: 20170922 Pledgee: Huantai Branch of Industrial and Commercial Bank of China Ltd. Pledgor: Shandong Juxin New Material Co.,Ltd. Registration number: Y2021980009427 |
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