CN102492404A - Anti-blowby cement slurry - Google Patents
Anti-blowby cement slurry Download PDFInfo
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- CN102492404A CN102492404A CN2011104146189A CN201110414618A CN102492404A CN 102492404 A CN102492404 A CN 102492404A CN 2011104146189 A CN2011104146189 A CN 2011104146189A CN 201110414618 A CN201110414618 A CN 201110414618A CN 102492404 A CN102492404 A CN 102492404A
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- cement
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- channeling
- cement slurry
- blowby
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Abstract
The invention relates to anti-blowby cement slurry, and relates to the technical field of cement slurry. The anti-blowby cement slurry consists of the following components in percentage by mass: 90 to 95 percent of cement matrix, 1 to 8 percent of polymer rubber latex powder, 0.1 to 0.7 percent of drag reducer, 0.3 to 3.5 percent of filtration-reducing agent, 0.1 to 1.5 percent of cement defoaming agent and 0.05 to 3.5 percent of thickening time control agent. The anti-blowby cement slurry is a single-component system; and due to the adoption of the rubber latex powder, the brittleness coefficients and elastic modulus of cement are reduced, the well cementation quality can be improved effectively, the fluid channeling can be prevented, and the problem generated when liquid polymer rubber latex is used is solved; and the anti-blowby cement slurry is stirred only by adding water at a construction site, and is convenient to prepare, store, transport and use, so the construction process is simplified, the cost is reduced, and the anti-blowby cement slurry has a bright application prospect.
Description
Technical field
The present invention relates to the grout technical field, exactly relate to a kind of improved anti-channeling and use grout, be mainly used in reinforcing oil well engineering, dam engineering and the Tunnel Engineering of anti-gas channeling.
Background technology
The fluid channelling is the problem that generally runs in the engineering construction, and it comprises gas channelling and water channeling.Especially in oil field deep well, ultra deep well, gas well and constructing tunnel,, cement stone consolidation strength is reduced, influence construction quality because reservoir pressure is big, project organization is complicated, under the high pressure, the fluid channelling takes place more easily.
The foamed cement slurry system of external exploitation, expansive cement slurry system, stage polymer latex cement slurry system all are applied in well cementation and Tunnel Engineering; Particularly the stage polymer latex cement slurry system is since 1958 use; Be called as best anti-gas channeling cement system, can control has channeling effectively.
Like publication number is CN1425627, and the Chinese patent document that open day is on June 25th, 2003 discloses the used high temperature anti-channeling latex cement admixture in a kind of oil drilling cementing technology deep well cementing field.Solved that the grout anti-channeling performance is poor, formation damage is serious, the problem of cementing quality difference.It is characterized in that: each composition and proportioning are following by weight: 71.8～94.15 parts in 5～25 parts of butadiene-styrenes, 0.3～2 part of phosphoric acid salt, phosphoesterase 30 .05～0.2 part, 0.5～1 part in sulphonate and water.Have high temperature resistance, low dehydration, right angle gelling, low permeability, characteristics that rheological is good; Can satisfy the requirement of cementing operation under the deep-well hot conditions; Anti-channeling performance is good under the deep-well hot conditions, cementing quality is good, help reservoir protection; Improve the effect of exploratory development, prolong oil well work-ing life, be worth of widely use.
But with above-mentioned patent documentation is the prior art of representative, still has following weak point:
1, butadiene-styrene normal temperature mainly exists with the mode of liquid state down, is the typical products of reinforcing oil well with liquid latex.It can not be directly and cement mixing be that product is sold, if take the sales mode of two components, one has increased the packing cost of product, two puddle at transportation and scene also not too convenient;
2, the liquid latex that makes through prior art, its solid content only can be accomplished about 50%, and the solid content of polymer latex milk powder is often up to 95%; If need reach close fleeing proof effect; The dosage of liquid latex has been equivalent to increase the wc of cement mixing much larger than polymer latex milk powder, not only can reduce the ultimate compression strength of cement stone; To the density of grout, degree of mobilization and thickening time all can be caused fluctuation;
3, liquid latex is owing to there is the existence of water; Latex has formed the macromolecular chain with certain polymerization degree in water; And puddling of cement is to adopt high-speed mixing equipment to be stirred to evenly; In the process that stirs, macromolecular chain may be interrupted, and high-speed mixing equipment can destroy the fleeing proof effect of latex.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of anti-channeling and use grout, adopt the said anti-channeling of the present invention to use grout; Because the polymer latex milk powder that uses is solid-state, the molecule aggregation degree is limited before the chance water, when adding water and cement mixing; Molecular chain just begins to form, and high-speed mixing equipment is very little to the destruction of macromolecular chain, and the molecule later stage continues polymerization; In the inner formation of cement stone membrane structure, thereby strengthened anti-channeling performance.Can solve and use the liquid latex anti-channeling performance, and reduce the crumbly coefficient and the Young's modulus of cement stone, can effectively improve cementing quality, anti-fluid channelling by existing high-speed mixing equipment institute destructive technical problem; Solved the problem of using liquid polymer latex to be brought simultaneously; Only need add the entry mix at the construction field (site) and get final product, preparation, storage, transportation and use are all very convenient, have both simplified construction process; Reduced cost again, had broad application prospects.
The present invention realizes through adopting following technical proposals:
A kind of anti-channeling is used grout, it is characterized in that: its component comprises by weight percentage:
Cement matrix (90～95) %;
Polymer latex milk powder (1～8) %;
Flow improver (0.1～0.7) %;
Water retaining (0.3～3.5) %;
Cement skimmer (0.1～1.5) %;
Adjustable solidification agent (0.05～3.5) %.
After said grout is cured as cement stone, form membrane structure between cement stone internal void, the crumbly coefficient of cement stone is less than 4.
Described cement matrix is the arbitrary combination of a kind of and inorganic active breeze in conventional oil well cement, moderate-heat portland cement, low-heat portland cement, general purpose portland cement, the low.
Described inorganic active breeze is meant one or more the arbitrary proportion combination in wollastonite powder, zeolite powder and the flyash.
Described polymer latex milk powder is one or more the arbitrary combination in Vinyl Acetate Copolymer, PS-divinyl, PS one Bing Xisuandingzhi or the polyacrylic ester powder.
Described flow improver is meant sulfonated acetone-formaldehyde condensation products flow improver or how is flow improver.
Described water retaining is meant a kind of of acrylamide copolymer water retaining or cellulose family water retaining.
Described cement skimmer is a kind of of silicone based skimmer or phosphoric acid ester skimmer.
Described adjustable solidification agent is a kind of in hardening accelerator or the retardant.
Described hardening accelerator is a kind of in villaumite hardening accelerator, vitriol hardening accelerator, nitrate salt or the nitrite hardening accelerator.
Described retardant is a kind of in Hydrocerol A or the Sunmorl N 60S.
Compared with prior art, beneficial effect of the present invention shows
One, with background technology in said CN1425627 patent documentation be representative prior art is compared that the present invention is because the polymer latex milk powder that uses is solid-state, meet water before the molecule aggregation degree limited; When adding water and cement mixing, molecular chain just begins to form, and high-speed mixing equipment is very little to the destruction of macromolecular chain; And the later stage continues polymerization, in the inner membrane structure that forms of cement stone, strengthens anti-channeling performance; Can solve and use the liquid latex anti-channeling performance, and reduce the crumbly coefficient and the Young's modulus of cement stone, can effectively improve cementing quality, anti-fluid channelling by existing high-speed mixing equipment institute destructive technical problem; Solved the problem of using liquid polymer latex to be brought simultaneously; Only need add the entry mix at the construction field (site) and get final product, preparation, storage, transportation and use are all very convenient, have both simplified construction process; Reduced cost again, had broad application prospects.
Two, in addition, the present invention also has following technique effect:
1, after the present invention has added polymer latex milk powder in mortar architecture; Cause in the solidification process of cement stone; Become by originally path between internal voids and the space and open circuit; Because the latex powder is met water dissolution, the polymkeric substance polymer has formed membrane structure in cement stone inside, has blocked the route of fluid channelling.
2, the crumbly coefficient that adopts the cement stone that this component forms is less than 4; Compare with common oil well cement; Greatly reduce cement stone crumbly coefficient,, cause cementing concrete ring resilience modulus to reduce simultaneously because crumbly coefficient is less than normal; The degree of crushing of cement stone in the time of can improving perforation reaches the purpose of better well cementation.
3, because the adding of macromolecular material (polymer latex milk powder); This cement slurry ties up in the whipping process and very easily bubbles; The great shadow of the existence meeting of bubble reduces construction quality, so we select to add skimmer, reduces the negative impact after polymkeric substance macromolecule glue milk powder adds.
4, the present invention is a single-component system, has solved the problem of using liquid polymer latex to be brought, only need add entry at the construction field (site) and get final product; Preparation, storage, transportation and use are all very convenient; Both simplified construction process, reduced cost again, had broad application prospects.
Embodiment
According to GB 10238-2005 latex cement is carried out performance evaluation.
Comparative Examples l:
Press wc 0.44, sulfonated acetone-formaldehyde condensation products 0.3%, acrylamide copolymer water retaining 1.2%; Silicone based skimmer 1%; Sunmorl N 60S 0.05%, the raw material mix of cement 600g are observed the stability of latex-cement slurry together; And the correlated performance of mensuration grout, the result sees table l.
Comparative Examples 2:
Press wc 0.44, styrene-butadiene latex (liquid state, solid content 50%) 5%; Sulfonated acetone-formaldehyde condensation products 0.3%, acrylamide copolymer water retaining 1.2%, silicone based skimmer 1%; Sunmorl N 60S 0.05%, the raw material mix of cement 600g are observed the stability of latex-cement slurry together; And the correlated performance of mensuration grout, the result sees table l.
EXAMPLE l
Press wc 0.44, polyvinyl acetate glue milk powder 2.5%, sulfonated acetone-formaldehyde condensation products 0.3%; Acrylamide copolymer water retaining 1.2%, phosphoric acid ester skimmer 1%, Sunmorl N 60S 0.05%; The raw material mix of cement 600g together; Observe the stability of latex-cement slurry, and measure the correlated performance of grout, the result sees table l.
Embodiment 2
Press wc 0.44, PS-butyl acrylate) latex powder 2.5%, sulfonated acetone-formaldehyde condensation products 0.3%; Acrylamide copolymer water retaining 1.2%, silicone based skimmer 1%, Sunmorl N 60S 0.05%; The raw material mix of cement 600g together; Observe the stability of latex-cement slurry, and measure the correlated performance of grout, the result sees table l.．
Embodiment 3
Press wc 0.44, terpolymer Vinyl Acetate Copolymer, PS-Bing Xisuandingzhi, polyacrylic ester latex powder 2.5%, sulfonated acetone-formaldehyde condensation products 0.3%; Acrylamide copolymer water retaining 1.2%, silicone based skimmer 1%, Sunmorl N 60S 0.05%; The raw material mix of cement 600g together; Observe the stability of latex-cement slurry, and measure the correlated performance of grout, the result sees table l.
Table 1:
Require: initial consistency is less than 20Bc, and the API WL is less than 30ml (for leakage-proof mud).
Experimental technique
(1) after slurry stirs, leaves standstill 5min under the room temperature and observe the slurry situation.
(2) after slurry stirs; Through 12-95-1 type normal pressure multiviscosisty appearance, maintenance slurry 20 min under the 60 ℃ * 0.1MPa experiment condition are then after (12000r/min) stirs 35s at a high speed on the OWC-4060K constant speed stirrer; Pour the 250ml Erlenmeyer flask into; After leaving standstill 2h, its upper strata liquid is free liquid, measures with the accurate graduated cylinder of scale.
(3) after slurry stirs, 27 ℃ * 0.1MPa, measure degree of mobilization with steel ruler under the experiment condition.
(4) after slurry stirs, under the 60 ℃ * 40MPa experiment condition, measure cement slurry thickening time, used time when noting initial consistency and denseness and reaching 100Bc through OWC-9040 type supercharging multiviscosisty appearance.
(5) after slurry stirred, through 12-95-1 type normal pressure multiviscosisty appearance, maintenance slurry 20 min under the 60 ℃ * 0.1MPa experiment condition poured slurry into OWC-9510 type filter press then.Test condition: 90 ℃ * 6.9MPa, collect 30min filtrating and measurement.
(6) adopt YAW one 300B type electric-liquid type pressure testing machine, experiment condition is 60 ℃, and its ultimate compression strength is measured in maintenance under the normal pressure after 24 hours.
Embodiment 4
As preferred forms of the present invention, the invention discloses a kind of anti-channeling and use grout, its component comprises by weight percentage:
Cement matrix 93%;
Polymer latex milk powder 2%;
Flow improver 0.5%;
Water retaining 2%;
Cement skimmer 1%;
Adjustable solidification agent 1.5%.
After said grout is cured as cement stone, form membrane structure between cement stone internal void, the crumbly coefficient of cement stone is less than 4.Described cement matrix is conventional oil well cement.Described polymer latex milk powder is Vinyl Acetate Copolymer.Described flow improver is meant sulfonated acetone-formaldehyde condensation products flow improver or how is flow improver.Described water retaining is meant a kind of in acrylamide copolymer water retaining, the Mierocrystalline cellulose water retaining.Described cement skimmer is silicone based skimmer.Described adjustable solidification agent is a hardening accelerator.Described hardening accelerator is a kind of in villaumite hardening accelerator, vitriol hardening accelerator, nitrate salt or the nitrite hardening accelerator.
Each batch mixes is made.During use, the same with common cement, mix and stir with water at the scene, making the slurry with certain degree of mobilization can use.Prove through test of many times, succeed.
Claims (10)
1. an anti-channeling is used grout, it is characterized in that: its component comprises by weight percentage:
Cement matrix (90～95) %;
Polymer latex milk powder (1～8) %;
Flow improver (0.1～0.7) %;
Water retaining (0.3～3.5) %;
Cement skimmer (0.1～1.5) %;
Adjustable solidification agent (0.05～3.5) %.
2. a kind of anti-channeling according to claim 1 is used grout, it is characterized in that: after said grout is cured as cement stone, form membrane structure between cement stone internal void, the crumbly coefficient of cement stone is less than 4.
3. a kind of anti-channeling according to claim 1 is used grout, it is characterized in that: described cement matrix is the arbitrary combination of a kind of and inorganic active breeze in conventional oil well cement, moderate-heat portland cement, low-heat portland cement, general purpose portland cement, the low.
4. a kind of anti-channeling according to claim 3 is used grout, it is characterized in that: described inorganic active breeze is meant one or more the arbitrary proportion combination in wollastonite powder, zeolite powder and the flyash.
5. a kind of anti-channeling according to claim 1 is used grout, it is characterized in that: described polymer latex milk powder is one or more the arbitrary combination in Vinyl Acetate Copolymer, PS-divinyl, PS one Bing Xisuandingzhi or the polyacrylic ester powder.
6. a kind of anti-channeling according to claim 1 is used grout, it is characterized in that: described water retaining is meant a kind of in acrylamide copolymer water retaining or the cellulose family water retaining.
7. a kind of anti-channeling according to claim 1 is used grout, it is characterized in that: described cement skimmer is a kind of of silicone based skimmer or phosphoric acid ester skimmer.
8. a kind of anti-channeling according to claim 1 is used grout, it is characterized in that: described adjustable solidification agent is a kind of in hardening accelerator or the retardant.
9. a kind of anti-channeling according to claim 8 is used grout, it is characterized in that: described hardening accelerator is a kind of in villaumite hardening accelerator, vitriol hardening accelerator, nitrate salt or the nitrite hardening accelerator.
10. a kind of anti-channeling according to claim 8 is used grout, it is characterized in that: described retardant is a kind of in Hydrocerol A or the Sunmorl N 60S.
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| CN2011104146189A CN102492404A (en) | 2011-12-13 | 2011-12-13 | Anti-blowby cement slurry |
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| CN2011104146189A CN102492404A (en) | 2011-12-13 | 2011-12-13 | Anti-blowby cement slurry |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103146368A (en) * | 2013-03-01 | 2013-06-12 | 中国石油大学(华东) | Elastic well cementation cement paste and preparation method thereof |
| CN103694972A (en) * | 2013-11-25 | 2014-04-02 | 辽河石油勘探局 | Cement mortar used for grouting while directional drilling and for reinforcing strata |
| CN104193914A (en) * | 2014-08-18 | 2014-12-10 | 清华大学 | Polymer latex for oil-gas field casing cement paste and preparation method thereof |
| CN105238376A (en) * | 2015-10-01 | 2016-01-13 | 中国石油集团西部钻探工程有限公司 | Elastic anti-channeling cement slurry and preparation method thereof |
| CN105255463A (en) * | 2015-11-04 | 2016-01-20 | 安东石油技术（集团）有限公司 | Elastic-plastic minimum inflation well cement slurry and preparation method thereof |
| CN105254226A (en) * | 2015-10-01 | 2016-01-20 | 中国石油集团西部钻探工程有限公司 | Elastic cement paste and preparation method thereof |
| CN105505352A (en) * | 2015-12-29 | 2016-04-20 | 中国石油化工股份有限公司 | Plugging agent for high-sulfur-content gas wells |
| CN106010489A (en) * | 2016-05-30 | 2016-10-12 | 葛洲坝石门特种水泥有限公司 | Ultrafine low-density cement mortar and production method thereof |
| CN106082807A (en) * | 2016-06-15 | 2016-11-09 | 廊坊瑞澜石油技术有限公司 | Oil (water) well envelope is altered, leak stopping system is prepared and application process |
| CN106256871A (en) * | 2015-06-19 | 2016-12-28 | 中国石油化工股份有限公司 | A kind of elastoplasticity cementing slurry and preparation method thereof |
| CN106367048A (en) * | 2015-07-22 | 2017-02-01 | 中国石油化工股份有限公司 | Cementing cement slurry plasticizer and preparation method thereof, and cement slurry prepared from cementing cement slurry plasticizer |
| CN106554763A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of blocking agent and its preparation method and application |
| CN106701048A (en) * | 2016-12-19 | 2017-05-24 | 天津中油渤星工程科技有限公司 | Anti-water breakthrough material for well cementation and preparation method thereof |
| CN106892594A (en) * | 2017-02-20 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of microdilatancy toughness reinforcing cement mortar and preparation method thereof |
| CN107721272A (en) * | 2017-10-27 | 2018-02-23 | 中国石油集团长城钻探工程有限公司固井公司 | A kind of high tenacity, high elastoplasticity, highdensity cement paste for well cementation |
| CN108751753A (en) * | 2018-07-16 | 2018-11-06 | 中国建筑材料科学研究总院有限公司 | High temperature cementing concrete and high temperature cementing slurry |
| CN110234731A (en) * | 2017-02-22 | 2019-09-13 | 哈利伯顿能源服务公司 | Accelerator for complex cement composition |
| CN110846007A (en) * | 2019-12-03 | 2020-02-28 | 中国石油化工股份有限公司 | Latex anti-channeling cement composition and cement slurry for adjusting well cementation |
| CN112979220A (en) * | 2019-12-02 | 2021-06-18 | 中石化石油工程技术服务有限公司 | Delayed gelling cement paste system |
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| 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 |
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| CN103146368A (en) * | 2013-03-01 | 2013-06-12 | 中国石油大学(华东) | Elastic well cementation cement paste and preparation method thereof |
| CN103694972A (en) * | 2013-11-25 | 2014-04-02 | 辽河石油勘探局 | Cement mortar used for grouting while directional drilling and for reinforcing strata |
| CN103694972B (en) * | 2013-11-25 | 2015-12-30 | 辽河石油勘探局 | A kind of Directional Drilling is with the grout boring Grouting Consolidation |
| CN104193914A (en) * | 2014-08-18 | 2014-12-10 | 清华大学 | Polymer latex for oil-gas field casing cement paste and preparation method thereof |
| CN106256871A (en) * | 2015-06-19 | 2016-12-28 | 中国石油化工股份有限公司 | A kind of elastoplasticity cementing slurry and preparation method thereof |
| CN106256871B (en) * | 2015-06-19 | 2019-02-22 | 中国石油化工股份有限公司 | A kind of elastoplasticity cementing slurry and preparation method thereof |
| CN106367048B (en) * | 2015-07-22 | 2018-09-18 | 中国石油化工股份有限公司 | Cementing slurry plasticizer and preparation method thereof and cement mortar prepared therefrom |
| CN106367048A (en) * | 2015-07-22 | 2017-02-01 | 中国石油化工股份有限公司 | Cementing cement slurry plasticizer and preparation method thereof, and cement slurry prepared from cementing cement slurry plasticizer |
| CN106554763A (en) * | 2015-09-24 | 2017-04-05 | 中国石油化工股份有限公司 | A kind of blocking agent and its preparation method and application |
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| CN105254226A (en) * | 2015-10-01 | 2016-01-20 | 中国石油集团西部钻探工程有限公司 | Elastic cement paste and preparation method thereof |
| CN105255463A (en) * | 2015-11-04 | 2016-01-20 | 安东石油技术（集团）有限公司 | Elastic-plastic minimum inflation well cement slurry and preparation method thereof |
| CN105255463B (en) * | 2015-11-04 | 2018-06-26 | 安东石油技术（集团）有限公司 | Elastoplasticity microdilatancy cementing slurry and preparation method thereof |
| CN105505352A (en) * | 2015-12-29 | 2016-04-20 | 中国石油化工股份有限公司 | Plugging agent for high-sulfur-content gas wells |
| CN106010489A (en) * | 2016-05-30 | 2016-10-12 | 葛洲坝石门特种水泥有限公司 | Ultrafine low-density cement mortar and production method thereof |
| CN106082807A (en) * | 2016-06-15 | 2016-11-09 | 廊坊瑞澜石油技术有限公司 | Oil (water) well envelope is altered, leak stopping system is prepared and application process |
| CN106701048A (en) * | 2016-12-19 | 2017-05-24 | 天津中油渤星工程科技有限公司 | Anti-water breakthrough material for well cementation and preparation method thereof |
| CN106892594A (en) * | 2017-02-20 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of microdilatancy toughness reinforcing cement mortar and preparation method thereof |
| CN110234731A (en) * | 2017-02-22 | 2019-09-13 | 哈利伯顿能源服务公司 | Accelerator for complex cement composition |
| US11078400B2 (en) | 2017-02-22 | 2021-08-03 | Halliburton Energy Services, Inc. | Accelerators for composite cement compositions |
| CN110234731B (en) * | 2017-02-22 | 2022-01-11 | 哈利伯顿能源服务公司 | Accelerator for composite cement compositions |
| CN107721272A (en) * | 2017-10-27 | 2018-02-23 | 中国石油集团长城钻探工程有限公司固井公司 | A kind of high tenacity, high elastoplasticity, highdensity cement paste for well cementation |
| CN107721272B (en) * | 2017-10-27 | 2020-02-11 | 中国石油集团长城钻探工程有限公司固井公司 | High-toughness, high-elastoplasticity and high-density cement slurry for well cementation |
| CN108751753A (en) * | 2018-07-16 | 2018-11-06 | 中国建筑材料科学研究总院有限公司 | High temperature cementing concrete and high temperature cementing slurry |
| CN108751753B (en) * | 2018-07-16 | 2021-01-26 | 中国建筑材料科学研究总院有限公司 | High-temperature well cementing cement and high-temperature well cementing cement slurry |
| CN112979220A (en) * | 2019-12-02 | 2021-06-18 | 中石化石油工程技术服务有限公司 | Delayed gelling cement paste system |
| CN112979220B (en) * | 2019-12-02 | 2023-03-21 | 中石化石油工程技术服务有限公司 | Delayed gelling cement paste system |
| CN110846007A (en) * | 2019-12-03 | 2020-02-28 | 中国石油化工股份有限公司 | Latex anti-channeling cement composition and cement slurry for adjusting well cementation |
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Application publication date: 20120613 |