CN105505351A - Free liquid controlling agent for oil well cement slurry, preparation method and applications thereof - Google Patents
Free liquid controlling agent for oil well cement slurry, preparation method and applications thereof Download PDFInfo
- Publication number
- CN105505351A CN105505351A CN201410541297.2A CN201410541297A CN105505351A CN 105505351 A CN105505351 A CN 105505351A CN 201410541297 A CN201410541297 A CN 201410541297A CN 105505351 A CN105505351 A CN 105505351A
- Authority
- CN
- China
- Prior art keywords
- hydraulic control
- control preparation
- preparation
- free
- free hydraulic
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention relates to a free liquid controlling agent for oil well cement slurry, a preparation method, and applications thereof, and relates to the field of well cementation of oil/gas well. The free liquid controlling agent comprises blended suspension, which is composed of the following components in parts by weight: 100 parts of water, 10 to 30 parts of nano attapulgite, 20 to 40 parts of nano silica, 0.1 to 1 part of dispersant, which is at least one of polycarboxylic acid dispersant, silane polymerized dispersant, and polysulfonic acid dispersant, and 0.5 to 1 part of slurry stabilizing agent, which is at least one of hydroxyethyl cellulose, sodium carboxymethyl cellulose, xanthan gum, scleroglucan, and welan gum. The provided free liquid controlling agent can effectively eliminate or reduce free liquid in oil well cement slurry, and can be used to prepare free-liquid-free cement slurry.
Description
Technical field
The present invention relates to the free hydraulic control preparation of grout in oil gas well cementing operation field, furtherly, relate to a kind of cementing slurry free hydraulic control preparation and preparation method thereof and application.
Background technology
During diameter portion well cementation, in annular space concrete column, can there is sedimentation in larger particle under gravity, may have the tendency of gathering and bridging plug, and the free liquid gathering in position below bridging plug just can generate tank or water-band sometimes, causes Behavior of Hardened Cement Paste to break during pressurization.In addition, free liquid assembles form that water pocket also hinders cement to sleeve pipe and stratum cementing.Also may gelling prematurely, formation produces lower static pressure or does not produce static pressure, and has channeling occurs.In horizontal cementing, horizontal section formed free liquid can gradually on move, when reaching a certain amount of, being interconnected at the free liquid capsule on annular space cement top, forming free liquid bath or water-band, also easily cause has channeling, affect cementing quality.
The admixture controlling free liquid in current well cementation mainly contains: wilkinite, attapulgite, Starso, diatomite, water glass, natural volcanic ash, flyash, alum or Tai-Ace S 150, Mierocrystalline cellulose, aluminium chlorohydroxide, superfine cement etc., but its action effect has certain limitation.Control free liquid DeGrain as wilkinite, attapulgite, diatomite etc. and affect cement strength; Superfine cement hydration rate is too fast, exists uncertain; Starso, water glass Chang Zuowei hardening accelerator use, and its dosage change can affect cement paste rheological matter, controls free liquid DeGrain; Alum or Tai-Ace S 150, Mierocrystalline cellulose, aluminium chlorohydroxide etc. easily make grout thickening.These admixtures or extra material are used alone the control problem not solving free liquid in well cementation completely above, all do not form stable ripe free hydraulic control preparation.
Qiu mediate and etc. describe the free liquid that liquid silicon can reduce grout.(Qiu Xiehe, Wang Liangcai, the evaluation of Guo Guangping .Microblock liquid silicon and the application [J] in Chinese oil field. Drilling and completion fluids .2010 (04) .) wherein introduce liquid silicon as free hydraulic control preparation, there is obvious effect, but the dosage of this technical scheme liquid silicon is comparatively large, generally adds more than 10%.
Summary of the invention
In order to solve the above-mentioned technical problem that prior art exists, the invention provides a kind of cementing slurry free hydraulic control preparation and preparation method thereof and application, being convenient to the preparation of cementing the well with zero free liquid grout, its preparation method is simple, with low cost, and result of use is good, and usage quantity is few.
One of the object of the invention is to provide the free hydraulic control preparation of a kind of cementing slurry, for including the suspension liquid of blended following component: nanometer attapulgite (having another name called polygorskite or attapulgite), nano silicon, dispersion agent, slurry stablizer and water, composition is suspended liquid; Wherein, with weight parts, the parts by weight of water are 100 parts; Described nanometer attapulgite, particle diameter 5 ~ 200nm, consumption is 10 ~ 30 parts, preferably 20 ~ 30 parts; Described nano silicon, particle diameter 10 ~ 260nm, consumption is 20 ~ 40 parts, preferably 20 ~ 30 parts.The consumption of described dispersion agent is 0.1 ~ 1 part, preferably 0.5 ~ 0.7 part, specifically optional at least one in polycarboxylate dispersant, silane copolymer dispersion agent or poly-sulfonic acid dispersants; The consumption of described slurry stablizer is 0.5 ~ 1 part (preferably 0.5 ~ 0.6 part), is selected from least one in Natvosol, Xylo-Mucine, xanthan gum, Sclerotium gum, welan gum.Wherein, nanometer attapulgite and nano silicon mainly play and control the effect of free water, and are prepared into dispersion agent and are suspended liquid and are convenient to on-the-spot use with slurry, facilitate it to apply.Meanwhile, add oar body stablizer and be convenient to product standing storage, prevent it from precipitating, increase stability.
Wherein, the optional at least one in polyacrylic acid, maleic acid-acrylic acid copolymer, acrylic acid-acrylic acid hydroxypropyl acrylate multipolymer, acrylic acid-acrylic ester-phosphonic acids-co-polymer of sulfonate, acrylic acid-acrylic ester-co-polymer of sulfonate, styrene-maleic anhydride copolymer of described polycarboxylate dispersant, wherein, optimization polypropylene acid; Described silane copolymer dispersion agent optional from polyethers modified dimethyl polysiloxane interpolymer, end group with hydrolyzable silane key-Si (-O-CH
3)
3polymkeric substance at least one, wherein, preferred, polyethers modified dimethyl polysiloxane interpolymer; Described poly-sulfonic acid dispersants can be selected from least one in vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer, Sodium Pyrosulfite-formaldehyde-acetone multipolymer, wherein, and preferred Sodium Pyrosulfite-formaldehyde-acetone multipolymer.
In order to strengthen product extended storage stability further, prevent it from precipitating, the cementing slurry of the present invention pH value of free hydraulic control preparation is preferably 9 ~ 11.
Two of the object of the invention is to provide the preparation method of a kind of cementing slurry with free hydraulic control preparation, comprises the following steps:
Being mixed into suspension liquid by including the above component in interior component, obtaining the free hydraulic control preparation of cementing slurry of the present invention.Wherein, preferably the pH value of described suspension liquid is adjusted to 9 ~ 11.
Three of the object of the invention is the described free hydraulic control preparation of cementing slurry application in grout, the application especially in cementing slurry.
The application of free hydraulic control preparation in grout of described cementing slurry, comprises after being mixed with cement and grout institute adding assistant etc. by the free hydraulic control preparation of described cementing slurry and is made into grout; Be made into institute's adding assistant of grout, such as defoamer, water retaining etc., and be made into the step of grout and equipment is in prior art existing.
Wherein said cementing slurry is 1 ~ 5% of cement weight with the consumption of free hydraulic control preparation.
The above mixing can be various hybrid mode of the prior art, and such as stir, equipment used can be various mixing equipment in prior art, such as stirrer etc.
The free hydraulic control preparation of cementing slurry of the application of the invention, the performance that cementing slurry controls free liquid can be improved, and can effectively eliminate or reduce the free liquid of cementing slurry, be convenient to the preparation of cementing the well with zero free liquid grout, and result of use is good, usage quantity is few, has good promotion and application and is worth.
Embodiment
Below in conjunction with embodiment, further illustrate the present invention.
Raw materials used source:
Nanometer attapulgite: Changzhou Jiuchuan Nano Material Technology Co., Ltd., high-purity Nano-class attapulgite clay;
Nano silicon: Haitai Nano Material Co., Ltd., Nanjing, nano silicon oxide;
Polycarboxylate dispersant: national fishing shelf, Dezhou petroleum engineering Technology Co., Ltd., DZH-1;
Poly-sulfonic acid dispersants: national fishing shelf, Dezhou petroleum engineering Technology Co., Ltd., DZS;
Silane copolymer dispersion agent: Hess steps functional materials (Shanghai) Co., Ltd., HydispexP104S;
Slurry stablizer Natvosol: Changzhou Kai Jie Chemical Co., Ltd., Natvosol;
Slurry stablizer xanthan gum: Zibo Deosen Biochemical Ltd., BP9260;
Slurry stablizer welan gum: U.S. Si Bikai can company, KELCO-
the fixed excellent glue of DG-F;
Slurry stablizer Sclerotium gum: French SanofiIndustrie company, ActigumCS-11;
NaOH: commercially available prod;
Oil well cement: Sichuan Jiahua Enterprise (Group) Corp., Ltd., good magnificent G-level high oil-resistant well cement;
Water: general tap water;
Defoamer: national fishing shelf, Dezhou petroleum engineering Technology Co., Ltd., DZX;
Water retaining: national fishing shelf, Dezhou petroleum engineering Technology Co., Ltd., DZJY;
Other reagent is commercially available prod.
One, free hydraulic control preparation preparation
Embodiment 1
Use raw material is as follows:
The consumption of water is 100g;
Nanometer attapulgite, particle diameter 20 ~ 50nm, consumption is 20g;
Nano silicon, particle diameter 30 ~ 100nm, consumption is 30g;
Polycarboxylate dispersant's consumption is 0.5g;
Slurry stablizer Natvosol consumption is 0.5g;
Preparation method: said components mixed, (12000 ± 500 revs/min) stir at a high speed, NaOH adjusts suspension liquid pH=9, obtains the free hydraulic control preparation of cementing slurry of the present invention.
Embodiment 2
Use raw material is as follows:
The consumption of water is 100g;
Nanometer attapulgite, particle diameter 10 ~ 20nm, consumption is 10g;
Nano silicon, particle diameter 20 ~ 50nm, consumption is 30g;
Silane copolymer dispersant dosage is 1g;
Slurry stablizer xanthan gum consumption is 0.5g;
Preparation method: said components mixed, (12000 ± 500 revs/min) stir at a high speed, NaOH adjusts suspension liquid pH=10, obtains the free hydraulic control preparation of cementing slurry of the present invention.
Embodiment 3
Use raw material is as follows:
The consumption of water is 100g;
Nanometer attapulgite, particle diameter 30 ~ 100nm, consumption is 30g;
Nano silicon, particle diameter 100 ~ 200nm, consumption is 30g;
Silane copolymer dispersant dosage is 0.5g;
Slurry stablizer welan gum consumption is 0.5g;
Preparation method: said components mixed, (12000 ± 500 revs/min) stir at a high speed, NaOH adjusts suspension liquid pH=9, obtains the free hydraulic control preparation of cementing slurry of the present invention.
Embodiment 4
Use raw material is as follows:
The consumption of water is 100g;
Nanometer attapulgite, particle diameter 100 ~ 200nm, consumption is 30g;
Nano silicon, particle diameter 200 ~ 260nm, consumption is 30g;
Silane copolymer dispersant dosage is 0.2g;
Slurry stablizer Sclerotium gum consumption is 0.6g;
Preparation method: said components mixed, (12000 ± 500 revs/min) stir at a high speed, NaOH adjusts suspension liquid pH=11, obtains the free hydraulic control preparation of cementing slurry of the present invention.
Embodiment 5
Use raw material is as follows:
The consumption of water is 100g;
Nanometer attapulgite, particle diameter 100 ~ 200nm, consumption is 20g;
Nano silicon, particle diameter 10 ~ 30nm, consumption is 40g;
Poly-sulfonic acid dispersants consumption is 0.1g;
Slurry stablizer Xylo-Mucine consumption is 1g;
Preparation method: said components mixed, (12000 ± 500 revs/min) stir at a high speed, NaOH adjusts suspension liquid pH=10, obtains the free hydraulic control preparation of cementing slurry of the present invention.
Embodiment 6
Use raw material is as follows:
The consumption of water is 100g;
Nanometer attapulgite, particle diameter 5 ~ 10nm, consumption is 30g;
Nano silicon, particle diameter 200 ~ 260nm, consumption is 20g;
Silane copolymer dispersant dosage is 0.7g;
Slurry stablizer Sclerotium gum consumption is 0.8g;
Preparation method: said components mixed, (12000 ± 500 revs/min) stir at a high speed, NaOH adjusts suspension liquid pH=11, obtains the free hydraulic control preparation of cementing slurry of the present invention.
Two, free liquid test
1, blank grout preparation
Take 500g oil well cement, 215g water, 0.5g defoamer, 5g water retaining.Water, water retaining and defoamer are put in the mixing container, agitator rotates with low speed (4000 ± 200 revs/min), and in 15 seconds, add the cement taken, cover the lid of agitator, and under high speed (12000 ± 500 revs/min), continue stirring 35 seconds, obtained blank grout.
2, comparative example 1
Prepared by " aluminium chlorohydroxide " grout
Take 500g oil well cement, 215g water, 0.5g defoamer, 5g water retaining, 2.5g aluminium chlorohydroxide.Oil well cement and aluminium chlorohydroxide are mixed into combination ash; Water, water retaining and defoamer are put in the mixing container, agitator rotates with low speed (4000 ± 200 revs/min), and in 15 seconds, add the combination ash of above-mentioned oil well cement and aluminium chlorohydroxide, cover the lid of agitator, and under high speed (12000 ± 500 revs/min), continue stirring 35 seconds, obtained aluminium chlorohydroxide grout.
3, comparative example 2
Prepared by " Starso " grout
Take 500g oil well cement, 215g water, 0.5g defoamer, 5g water retaining, 7.5g Starso.Oil well cement and Starso are mixed into combination ash; Water, water retaining and defoamer are put in the mixing container, agitator rotates with low speed (4000 ± 200 revs/min), and in 15 seconds, add the combination ash of above-mentioned oil well cement and Starso, cover the lid of agitator, and under high speed (12000 ± 500 revs/min), continue stirring 35 seconds, obtained Starso grout.
Prepared by the grout 4, containing free hydraulic control preparation
Take 500g oil well cement, 215g water, 0.5g defoamer, 5g water retaining, free hydraulic control preparation prepared by 10g embodiment 1.Water, water retaining, defoamer and free hydraulic control preparation are put in the mixing container, agitator rotates with low speed (4000 ± 200 revs/min), and in 15 seconds, add the cement taken, cover the lid of agitator, and under high speed (12000 ± 500 revs/min), continue stirring 35 seconds, the obtained free liquid test water mud containing embodiment 1 free hydraulic control preparation.
Repeat to test for more than five times, only free hydraulic control preparation changes free hydraulic control preparation prepared by embodiment 2,3,4,5,6 respectively into, dosage is respectively 5g, 20g, 25g, 15g, 15g, obtains respectively containing five parts of free liquid test water mud of the free hydraulic control preparation of embodiment 2,3,4,5,6.
5, cement slurry property test
Every part of grout of above-mentioned preparation is adopted following testing method respectively:
93 DEG C of maintenances 20 minutes, after having surveyed six speed values with six fast rotational viscosimeters (the sensible instrumentation factory in sea, Qingdao, ZNN-D6), pour in 250mL glass cylinder to 250mL scale marks.The length of graduated cylinder 0 ~ 250mL scale part should lower than 232mm, should higher than 250mm yet, and every lattice scale should be 2mL or less.In the process pouring grout into, guarantee that grout sample is even.Graduated cylinder tilts 45 °, and the time of repose of test is 2 hours, pours graduated cylinder into count from grout.Use plastics film to be sealed by graduated cylinder, divide evaporation to prevent water.After reaching the time of repose of 2 hours, measure the free the liquid transparent or colored liquid of grout top (in the graduated cylinder) of grout, measure that free fluid is long-pending is at least accurate to ± 0.2mL.Test result, as following table 1.
Table 1 adds the grout rheological data of different embodiment control agent sample and free liquid test result
From test result, add the grout of 2.5g aluminium chlorohydroxide, obtained grout is very thick
add again to make the further thickening of grout, can not pumping, lose the possibility of practical application; And free liquid is now 1.3mL, be not also effectively controlled.Add the grout of nearly 7.5g Starso, free liquid is 1.8mL, does not also effectively control free liquid.Result shows, aluminium chlorohydroxide grout and Starso grout do not solve the control problem of free liquid in well cementation completely, still have free liquid, can not separately as the free hydraulic control preparation of stable maturation.
Contrast shows, each embodiment rheological data height adding free hydraulic control preparation turns
all below 300, low turn simultaneously
with
not high, cementing operation can be met to cement paste rheological requirement.And adding each embodiment of free hydraulic control preparation, free liquid test is zero, illustrates that free hydraulic control preparation of the present invention effectively can control the free liquid of grout, is applicable to the preparation of zero free liquid grout.
Claims (10)
1. the free hydraulic control preparation of cementing slurry, for including the suspension liquid of blended following component: nanometer attapulgite, nano silicon, dispersion agent, slurry stablizer and water;
Wherein, with weight parts, the parts by weight of water are 100 parts;
Described nanometer attapulgite, particle diameter 5 ~ 200nm, consumption is 10 ~ 30 parts; Described nano silicon, particle diameter 10 ~ 260nm, consumption is 20 ~ 40 parts; The consumption of described dispersion agent is 0.1 ~ 1 part, is selected from least one in polycarboxylate dispersant, silane copolymer dispersion agent or poly-sulfonic acid dispersants; The consumption of described slurry stablizer is 0.5 ~ 1 part, is selected from least one in Natvosol, Xylo-Mucine, xanthan gum, Sclerotium gum, welan gum.
2. the free hydraulic control preparation of cementing slurry according to claim 1, is characterized in that:
Described polycarboxylate dispersant is selected from least one in polyacrylic acid, maleic acid-acrylic acid copolymer, acrylic acid-acrylic acid hydroxypropyl acrylate multipolymer, acrylic acid-acrylic ester-phosphonic acids-co-polymer of sulfonate, acrylic acid-acrylic ester-co-polymer of sulfonate, styrene-maleic anhydride copolymer;
Described silane copolymer dispersion agent is selected from polyether-modified Dimethicone Copolyol body, end group with hydrolyzable silane key-Si (-O-CH
3)
3polymkeric substance at least one;
Described poly-sulfonic acid dispersants is selected from least one in vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer, Sodium Pyrosulfite-formaldehyde-acetone multipolymer.
3. the free hydraulic control preparation of cementing slurry according to claim 2, is characterized in that:
Described polycarboxylate dispersant is selected from polyacrylic acid; Described silane copolymer dispersion agent is selected from polyether-modified Dimethicone Copolyol body; Described poly-sulfonic acid dispersants is selected from Sodium Pyrosulfite-formaldehyde-acetone multipolymer.
4. the free hydraulic control preparation of cementing slurry according to claim 1, is characterized in that:
Described nanometer attapulgite consumption is 20 ~ 30 parts; Described nano silicon consumption is 20 ~ 30 parts.
5. the free hydraulic control preparation of cementing slurry according to claim 1, is characterized in that:
Described dispersion agent is 0.5 ~ 0.7 part; Described slurry stablizer is 0.5 ~ 0.6 part.
6., according to the free hydraulic control preparation of the cementing slurry one of Claims 1 to 5 Suo Shu, it is characterized in that:
The pH value of described suspension liquid is 9 ~ 11.
7. the cementing slurry according to one of claim 1 ~ 6 item comprises by the preparation method of free hydraulic control preparation and mixes the component including described component into suspension liquid.
8. the cementing slurry according to claim 7 preparation method of free hydraulic control preparation, is characterized in that:
After described component is mixed, adjust pH to 9 ~ 11.
9. according to the application of free hydraulic control preparation in grout of the cementing slurry one of claim 1 ~ 6 Suo Shu.
10. the cementing slurry according to claim 9 application of free hydraulic control preparation in grout, is characterized in that:
In described grout, cementing slurry is 1 ~ 5% of cement weight by the add-on of free hydraulic control preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541297.2A CN105505351B (en) | 2014-10-14 | 2014-10-14 | Free hydraulic control preparation of a kind of cementing slurry and the preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541297.2A CN105505351B (en) | 2014-10-14 | 2014-10-14 | Free hydraulic control preparation of a kind of cementing slurry and the preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105505351A true CN105505351A (en) | 2016-04-20 |
| CN105505351B CN105505351B (en) | 2018-07-27 |
Family
ID=55713661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410541297.2A Active CN105505351B (en) | 2014-10-14 | 2014-10-14 | Free hydraulic control preparation of a kind of cementing slurry and the preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105505351B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057665A (en) * | 2017-01-06 | 2017-08-18 | 中国海洋石油总公司 | A kind of oleaginous suspension and its purposes for cementing slurry suspending agent |
| CN109265695A (en) * | 2018-08-24 | 2019-01-25 | 江南大学 | A kind of preparation method and application thickening modified xantham gum |
| CN111406754A (en) * | 2020-04-28 | 2020-07-14 | 浙江禾本科技股份有限公司 | Hexythiazox water suspending agent and preparation method thereof |
| CN113105150A (en) * | 2021-02-23 | 2021-07-13 | 广东至道先进土木工程材料技术研究有限公司 | Suspension stabilizer, preparation method, use method and use device thereof |
| CN113227313A (en) * | 2019-02-01 | 2021-08-06 | 哈利伯顿能源服务公司 | Compatible low crystalline silica spacers |
| CN113913167A (en) * | 2020-07-08 | 2022-01-11 | 中国石油化工股份有限公司 | Free hydraulic control preparation for well cementation cement slurry and preparation method and application thereof |
| CN114058346A (en) * | 2020-07-31 | 2022-02-18 | 中国石油化工股份有限公司 | Calcium silicate hydrate suspension and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090078417A1 (en) * | 2007-09-26 | 2009-03-26 | Sullivan Philip F | Emulsion System for Sand Consolidation |
| CN102775972A (en) * | 2012-07-16 | 2012-11-14 | 中国海洋石油总公司 | Liquid high-temperature resistant declining agent for well cementation and preparation method thereof |
-
2014
- 2014-10-14 CN CN201410541297.2A patent/CN105505351B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090078417A1 (en) * | 2007-09-26 | 2009-03-26 | Sullivan Philip F | Emulsion System for Sand Consolidation |
| CN102775972A (en) * | 2012-07-16 | 2012-11-14 | 中国海洋石油总公司 | Liquid high-temperature resistant declining agent for well cementation and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 张兴国，刘晓明，李跃明，王秀霞: "微硅对水泥浆、水泥石的改善作用", 《西部探矿工程》 * |
| 穆海鹏: "纳米液硅水泥浆技术", 《石油钻探技术》 * |
| 邱燮，王良才，郭广平: "Microblock 液硅的评价及在中国油田的应用", 《钻井液与完井液》 * |
| 钻井手册编写组: "《钻井手册第2版》", 30 September 2013, 北京：石油工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107057665A (en) * | 2017-01-06 | 2017-08-18 | 中国海洋石油总公司 | A kind of oleaginous suspension and its purposes for cementing slurry suspending agent |
| CN107057665B (en) * | 2017-01-06 | 2019-10-25 | 中国海洋石油集团有限公司 | A kind of oleaginous suspension and its purposes for cementing slurry suspending agent |
| CN109265695A (en) * | 2018-08-24 | 2019-01-25 | 江南大学 | A kind of preparation method and application thickening modified xantham gum |
| CN113227313A (en) * | 2019-02-01 | 2021-08-06 | 哈利伯顿能源服务公司 | Compatible low crystalline silica spacers |
| CN111406754A (en) * | 2020-04-28 | 2020-07-14 | 浙江禾本科技股份有限公司 | Hexythiazox water suspending agent and preparation method thereof |
| CN113913167A (en) * | 2020-07-08 | 2022-01-11 | 中国石油化工股份有限公司 | Free hydraulic control preparation for well cementation cement slurry and preparation method and application thereof |
| CN114058346A (en) * | 2020-07-31 | 2022-02-18 | 中国石油化工股份有限公司 | Calcium silicate hydrate suspension and preparation method and application thereof |
| CN114058346B (en) * | 2020-07-31 | 2023-03-14 | 中国石油化工股份有限公司 | Calcium silicate hydrate suspension and preparation method and application thereof |
| CN113105150A (en) * | 2021-02-23 | 2021-07-13 | 广东至道先进土木工程材料技术研究有限公司 | Suspension stabilizer, preparation method, use method and use device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105505351B (en) | 2018-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105505351A (en) | Free liquid controlling agent for oil well cement slurry, preparation method and applications thereof | |
| CN105567195A (en) | Well cementing slurry free liquid control agent, preparation method and application thereof | |
| Diamantonis et al. | Investigations about the influence of fine additives on the viscosity of cement paste for self-compacting concrete | |
| CN102516964B (en) | Low-density and high-strength cement paste | |
| JP7425414B2 (en) | Silica additive for cementing composition, cementing composition and cementing method | |
| CN103270132B (en) | Compositions and method for completion | |
| AU2013399594B2 (en) | Yielding of hydrated lime in set-delayed and other settable compositions | |
| EP3374326A1 (en) | Self-pressurizing soluble alkali silicate for use in sealing subterranean spaces | |
| CN106554766B (en) | Anti-channeling lotion, well cementation leakage-proof mud and preparation method thereof | |
| Abid et al. | A methodology to improve nanosilica based cements used in CO2 sequestration sites | |
| EP1348677A2 (en) | Storable water-silica suspensions for use in well cements | |
| CN102786245B (en) | Formula for viscosity reducer | |
| CN105969326B (en) | sodium silicate cementing pad fluid | |
| CN102796500A (en) | Low-hydration-heat early-strength cement for well cementation | |
| CN1863888B (en) | Surfactant composition | |
| CN107973537A (en) | A kind of high-temperature flexible cement mortar suspending agent and preparation method thereof and cement mortar | |
| CN103773341A (en) | Thickener and super high-density cement paste based on thickener | |
| CN104312558A (en) | Metakaolin waterborne suspension liquid, preparation method and application of suspension liquid and cement paste for well cementing in oil field | |
| CN107325799A (en) | A kind of oil-well cement acrylic compounds fluid loss agent and its preparation method and application | |
| JP5189274B2 (en) | Ground injection material and ground injection method using the same | |
| RU2468187C1 (en) | Base of curable grouting mortar | |
| CN105385427A (en) | Ocean deep water surface layer cementing cement paste system and preparing method thereof | |
| BR112021012600A2 (en) | METHOD TO DISPLACE WELL HOLE FLUIDS AND SPACE FLUID | |
| CN107129796A (en) | Compound anti-migration agent, well cementation leakage-proof mud and preparation method thereof | |
| Pikłowska | Rheological properties of cement slurries modified by silica nanostructures applied in drilling industry |
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 |