CN102408881A - Drilling flushing fluid and preparation method thereof - Google Patents
Drilling flushing fluid and preparation method thereof Download PDFInfo
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- CN102408881A CN102408881A CN2011103145530A CN201110314553A CN102408881A CN 102408881 A CN102408881 A CN 102408881A CN 2011103145530 A CN2011103145530 A CN 2011103145530A CN 201110314553 A CN201110314553 A CN 201110314553A CN 102408881 A CN102408881 A CN 102408881A
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- coating agent
- magnesium chloride
- drilling fluid
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Abstract
The invention discloses a drilling flushing fluid which comprises the following components in parts by weight: 70-90 parts of magnesium chloride; 1-10 parts of magnesium hydroxide; 1-5 parts of a salt-resistant tackifier; 1-5 parts of grafted starch; 2-5 parts of a lubricant; 0.5-1 part of coating agent; 3-5 parts of a salt inhibitor; 1-3 parts of a defoaming agent. The drilling flushing fluid provided by the invention has strong inhibition, can keep the hole wall stable when being used for drilling the sylvite ore body, and improves the core sampling rate of the sylvite ore body.
Description
Technical field
The present invention relates to used a kind of drilling fluid in geological drilling field and preparation method thereof.
Background technology
Drilling fluid is meant the circulation flushing medium that uses in the core drilling process mesopore, and its major function is cools reamer head, discharges landwaste, protects hole wall etc.At present, the washing fluid that creeps into of sylvite ore body mainly adopts the saturated saltwater mud system.Because the solubleness of Repone K is high, it is lower therefore to adopt this system to creep into core recovery percentage.The spy creeps into the carnallitite stratum, because the staple of carnallitite is MgCl
2.6H
2O, its solubleness is high, and temperature influence alters a great deal.Adopt the saturated brine washing fluid, magnesium chloride and the dissolving of Repone K in washing fluid in can't preventing to creep into because the quick corrosion of rock core can't be taken out complete sylvite ore core (or can not getting the sylvite ore core), have a strong impact on the quality of coring on the one hand; The dissolving of hole wall carnallitite simultaneously causes the aperture to enlarge, and causes the instability of hole wall.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of drilling fluid, contain the component of following parts by weight:
70 ~ 90 parts in magnesium chloride; 1 ~ 10 part of Marinco H;
1 ~ 5 part of anti-salt tackifier; 1 ~ 5 part of graft starch;
2 ~ 5 parts of lubricants; 0.5 ~ 1 part of coating agent;
3 ~ 5 parts of salt inhibitors; 1 ~ 3 part of skimmer.
Wherein, above-mentioned drilling fluid also contains 150 ~ 180 parts in water.
Preferably, above-mentioned drilling fluid contains the component of following parts by weight:
90 parts in magnesium chloride; 8 parts of Marinco Hs;
5 parts of anti-salt tackifier; 5 parts of graft starchs;
5 parts of lubricants; 0.6 part of coating agent;
4 parts of salt inhibitors; 2 parts of skimmers;
165 parts in water.
Preferably, above-mentioned coating agent is the polymer coating agent.
The present invention also provides the method for the above-mentioned drilling fluid of preparation, and step is: mix magnesium chloride, oxyhydroxide, anti-salt tackifier, graft starch, lubricant, coating agent, salt inhibitor and the skimmer of said parts by weight soluble in water successively.
Beneficial effect of the present invention is: drilling fluid provided by the invention has strong rejection capability, is used for can keeping when the sylvite ore body creeps into hole wall stable, improves the core recovery percentage of sylvite ore body.Except that the probing of satisfying the sylvite ore body requires, also can be used for other salt cream class ore body probing and the probing of strong water sensitivity mud shale stratum.
Embodiment
Below in conjunction with specific embodiment the present invention is described further so that those skilled in the art can better understand the present invention and implementing, but the embodiment that lifts not conduct to qualification of the present invention.
Bore flushing liquid and preparation method thereof provided by the invention is to get 70 ~ 90 parts in magnesium chloride according to parts by weight; 1 ~ 10 part of Marinco H; 1 ~ 5 part of anti-salt tackifier; 1 ~ 5 part of graft starch; 2 ~ 5 parts of lubricants; 0.5 ~ 1 part of coating agent; 3 ~ 5 parts of salt inhibitors and 1 ~ 3 part of skimmer are dissolved in 150 ~ 180 parts the water successively.
The acting in conjunction of magnesium chloride, Marinco H makes this system can effectively suppress the dissolving of high-dissolvability salt series products such as Repone K, magnesium chloride.
Anti-salt tackifier are used to improve the suspending power of system.Can select any commercially available anti-salt tackifier commonly used for use, as: the anti-salt tackifier GTQ of high-temperature resisting and salt-resisting tackify fluid loss agent SL-2, the high-temperature resisting and salt-resisting tackifier OCL-PTN of Beijing AoKaiLi Science Development Co., Ltd or Beijing Prospecting Work Research Institute that chemical industry goods and materials ltd of the high section of Renqiu City produces etc.Among the present invention, preferably use anti-salt tackifier GTQ.
Graft starch is used to reduce the system filter loss.Can select any commercially available treated starch commonly used for use, as: Jinan sky Feng Huagong supply CMS, North China oil Hong Tai Fine Chemical Co., Ltd supply treated starch etc.
Lubricant is used to improve the lubricity of system.Can select any commercially available lubricant commonly used for use, as: the highly-efficient lubricant GLUB that the highly-efficient lubricant that Jiangxi Province's Pingxiang City spring flower bud drilling well auxiliary agent ltd produces, Jinan sky Feng Huagong supply highly-efficient lubricant FT-342 or Beijing Prospecting Work Research Institute produce etc.The preferred highly-efficient lubricant GLUB that uses Beijing Prospecting Work Research Institute to produce among the present invention.
Coating agent is used to prevent that shale hydration from disperseing, and is preferably the polymer coating agent.Can select any commercially available polymer coating agent commonly used for use, as, the strong coating agent FA367 of amphoteric ion polymer of the SEPIGEL 305 of Hebei Jin Feng chemical industry supply, the supply of Henan, Zhengzhou China auxiliary agent ltd or the coating agent BBJ that Beijing Prospecting Work Research Institute produces etc.The preferred coating agent BBJ that uses Beijing Prospecting Work Research Institute to produce among the present invention;
Salt inhibitor is used to prevent the recrystallization of salts such as magnesium chloride, sodium-chlor.Can select any commercially available salt inhibitor commonly used for use, as: available from the salt recrystallization suppressor factor NAT in Chinese parasol tree chemical plant, Wujiaqu City, Xinjiang or the salt recrystallization suppressor factor of Jingzhou City, Hubei development in science and technology ltd of dust section production etc.
Skimmer is used for eliminating the foam that mud produces.Can select any commercially available skimmer commonly used for use, as: the skimmer that the skimmer that China Resources, Suzhou chemical industry ltd produces, the refreshing fortune of Changzhou chemical industry ltd produce etc.The skimmer DF-4 that the present invention preferably uses Beijing Prospecting Work Research Institute to produce.
Specific embodiment and effect thereof:
Visible by last table, the Repone K and the magnesium chloride of adding high-dissolvability in washing fluid system of the present invention, its meltage is zero, explains that this system can effectively suppress the dissolving of Repone K and magnesium chloride, helps improving the core recovery of potassium rock ore body; Because this washing fluid system of the present invention has adopted products such as magnesium chloride, polymer coating agent, anti-salt tackifier, graft starch; The system filter loss of making obviously reduces (less than 3mL/30min); Suppressing the shale hydration expansion obviously strengthens with the dispersive ability; The relative expansion reduced rate and the landwaste recovery explain that all more than 95% this system has strong rejection capability, and it is stable to help hole wall.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that the technician in present technique field is done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (5)
1. a drilling fluid is characterized in that, contains the component of following parts by weight:
70 ~ 90 parts in magnesium chloride; 1 ~ 10 part of Marinco H;
1 ~ 5 part of anti-salt tackifier; 1 ~ 5 part of graft starch;
2 ~ 5 parts of lubricants; 0.5 ~ 1 part of coating agent;
3 ~ 5 parts of salt inhibitors; 1 ~ 3 part of skimmer.
2. drilling fluid according to claim 1 is characterized in that, also contains 150 ~ 180 parts in water.
3. drilling fluid according to claim 1 is characterized in that, contains the component of following parts by weight:
90 parts in magnesium chloride; 8 parts of Marinco Hs;
5 parts of anti-salt tackifier; 5 parts of graft starchs;
5 parts of lubricants; 0.6 part of coating agent;
4 parts of salt inhibitors; 2 parts of skimmers;
165 parts in water.
4. drilling fluid according to claim 1 is characterized in that, said coating agent is the polymer coating agent.
5. the method for preparing each described drilling fluid of claim 1 ~ 4; It is characterized in that step is: mix magnesium chloride, Marinco H, anti-salt tackifier, graft starch, lubricant, coating agent, salt inhibitor and the skimmer of said parts by weight soluble in water successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103145530A CN102408881B (en) | 2011-10-17 | 2011-10-17 | Drilling flushing fluid and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103145530A CN102408881B (en) | 2011-10-17 | 2011-10-17 | Drilling flushing fluid and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102408881A true CN102408881A (en) | 2012-04-11 |
| CN102408881B CN102408881B (en) | 2013-06-19 |
Family
ID=45911237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103145530A Active CN102408881B (en) | 2011-10-17 | 2011-10-17 | Drilling flushing fluid and preparation method thereof |
Country Status (1)
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| CN (1) | CN102408881B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732239A (en) * | 2012-07-24 | 2012-10-17 | 天津油孚科技发展有限公司 | Organic and inorganic composite flushing liquid as well as preparation method and applications thereof |
| CN103897675A (en) * | 2014-01-27 | 2014-07-02 | 中国石油化工集团公司 | Drilling fluid completion fluid for increasing drilling speed and preparation method of drilling fluid completion fluid |
| RU2606601C1 (en) * | 2015-10-15 | 2017-01-10 | федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Process fluid for well development |
| CN107513379A (en) * | 2017-08-15 | 2017-12-26 | 泰州克罗米德机械设备有限公司 | For blocking and repairing the liquid composite of well |
| CN107987817A (en) * | 2017-11-28 | 2018-05-04 | 中国煤炭地质总局水文地质局 | One kind is in limestone formation horizontal well construction flushing liquor |
| CN111943633A (en) * | 2020-08-20 | 2020-11-17 | 黄卫东 | Magnesium oxychloride cement slurry for grouting in potash magnesium salt mine area and method for implementing drilling hole sealing and well and roadway construction water stop engineering |
| CN114181681A (en) * | 2021-12-23 | 2022-03-15 | 四川省地质矿产勘查开发局四0五地质队 | Composite salt water drilling fluid suitable for lithium-rich potassium resource |
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| US7312183B2 (en) * | 2004-10-05 | 2007-12-25 | M-I L.L.C. | Shale hydration inhibition agent and method of use |
| CN101311240A (en) * | 2007-05-24 | 2008-11-26 | 新疆石油管理局钻井工艺研究院 | Glucoheptonate restraining agent for drilling fluid and method for preparing same |
| CN101914371A (en) * | 2010-08-25 | 2010-12-15 | 中国地质大学（武汉） | Rectorite saturated brine drilling fluid for drilling under rock salt deep stratum |
| CN101935519A (en) * | 2010-08-09 | 2011-01-05 | 中联煤层气国家工程研究中心有限责任公司 | Drilling fluid and preparation method thereof |
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2011
- 2011-10-17 CN CN2011103145530A patent/CN102408881B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7312183B2 (en) * | 2004-10-05 | 2007-12-25 | M-I L.L.C. | Shale hydration inhibition agent and method of use |
| CN101311240A (en) * | 2007-05-24 | 2008-11-26 | 新疆石油管理局钻井工艺研究院 | Glucoheptonate restraining agent for drilling fluid and method for preparing same |
| CN101935519A (en) * | 2010-08-09 | 2011-01-05 | 中联煤层气国家工程研究中心有限责任公司 | Drilling fluid and preparation method thereof |
| CN101914371A (en) * | 2010-08-25 | 2010-12-15 | 中国地质大学（武汉） | Rectorite saturated brine drilling fluid for drilling under rock salt deep stratum |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732239A (en) * | 2012-07-24 | 2012-10-17 | 天津油孚科技发展有限公司 | Organic and inorganic composite flushing liquid as well as preparation method and applications thereof |
| CN102732239B (en) * | 2012-07-24 | 2014-01-29 | 天津油孚科技发展有限公司 | Organic and inorganic composite flushing liquid as well as preparation method and applications thereof |
| CN103897675A (en) * | 2014-01-27 | 2014-07-02 | 中国石油化工集团公司 | Drilling fluid completion fluid for increasing drilling speed and preparation method of drilling fluid completion fluid |
| RU2606601C1 (en) * | 2015-10-15 | 2017-01-10 | федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" | Process fluid for well development |
| CN107513379A (en) * | 2017-08-15 | 2017-12-26 | 泰州克罗米德机械设备有限公司 | For blocking and repairing the liquid composite of well |
| CN107987817A (en) * | 2017-11-28 | 2018-05-04 | 中国煤炭地质总局水文地质局 | One kind is in limestone formation horizontal well construction flushing liquor |
| CN107987817B (en) * | 2017-11-28 | 2020-09-15 | 中煤地华盛水文地质勘察有限公司 | Flushing fluid for horizontal well construction in limestone stratum |
| CN111943633A (en) * | 2020-08-20 | 2020-11-17 | 黄卫东 | Magnesium oxychloride cement slurry for grouting in potash magnesium salt mine area and method for implementing drilling hole sealing and well and roadway construction water stop engineering |
| CN111943633B (en) * | 2020-08-20 | 2021-08-27 | 黄卫东 | Magnesium oxychloride cement slurry for grouting in potash magnesium salt mine area and method for implementing drilling hole sealing and well and roadway construction water stop engineering |
| CN114181681A (en) * | 2021-12-23 | 2022-03-15 | 四川省地质矿产勘查开发局四0五地质队 | Composite salt water drilling fluid suitable for lithium-rich potassium resource |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102408881B (en) | 2013-06-19 |
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Free format text: FORMER OWNER: CHINA NATIONAL ADMINISTRATION OF COAL GEOLOGY HYDROLOGY GEOLOGIC BUREAU Effective date: 20130923 Owner name: QINGDAO QIXIN GEOLOGY MINERAL EXPLORATION CO., LTD Free format text: FORMER OWNER: BEIJING PROSPECTING WORK RESEARCH INSTITUTE Effective date: 20130923 |
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Free format text: CORRECT: ADDRESS; FROM: 100083 HAIDIAN, BEIJING TO: 810000 XINING, QINGHAI PROVINCE |
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Effective date of registration: 20130923 Address after: Two road 810000 Qinghai city of Xining province Biological Park No. 16 building 4 floor Wei Xi Wang Patentee after: QINGHAI QIXIN GEOLOGY AND MINERAL EXPLORATION CO., LTD. Address before: 100083 large exploration building, No. 29, Xueyuan Road, Beijing, Haidian District Patentee before: Beijing Prospecting Work Research Institute Patentee before: China National Administration of Coal Geology Hydrology Geologic Bureau |