CN101693827B - Coagulation composite sealing agent - Google Patents
Coagulation composite sealing agent Download PDFInfo
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- CN101693827B CN101693827B CN2009100165709A CN200910016570A CN101693827B CN 101693827 B CN101693827 B CN 101693827B CN 2009100165709 A CN2009100165709 A CN 2009100165709A CN 200910016570 A CN200910016570 A CN 200910016570A CN 101693827 B CN101693827 B CN 101693827B
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- sealing agent
- stratums
- leakage
- composite sealing
- bearing
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Abstract
The invention discloses a coagulation composite sealing agent, which comprises components in percentage by weight: sodium silicate 3-6, potassium silicate 2-4, magnesium oxide 10-20, calcium carbonate 20-30, shell powder 15-30 and calcium oxide 5-10, which are evenly mixed and stirred under normal temperature and pressure. The invention is characterized by repairing and coagulating fractures, not bearing the pressure of leakage stratum well walls, being capable of freely pumping, forming concretion substances coagulated on easy broken well walls of leakage channels and leakage fractures and the like. The sealing agent is extensively applicable to petroleum and geology boring projects, in particular to application in bearing and leak-stopping processes of low-voltage brokenness stratums, reef limestone stratums and fracture stratums.
Description
One, technical field
The present invention relates to drilling plugging agent, particularly a kind of coagulation composite sealing agent.
Two, background technology
The processing of leakage is the great technical barrier in the petroleum drilling, and it is particularly thorny that particularly complicated leakage is lost problem.Conventional plugging agent is generally chemical gel leak stopping methods such as the leak stopping of bridge slurry, bridging plug leak stopping, the leak stopping of diesel oil bentonite slurry, though also play a role, has following shortcoming or deficiency: 1. when blocking construction, can't condense and repair the leakage stratum borehole wall.2. for ravelly ground, the leakage stratum that is prone to collapse particularly during the stratum of low pressure cementing properties difference, can not be repaired the ravelly ground borehole wall and condense; 3. behind the blocking construction, bearing capacity is low, and plugging effect is poor, causes the repeated multiple times leak stopping, thereby has directly reduced the pressure-bearing plugging effect of ravelly ground, so that influence subsequent job operation and oil production.
Three, summary of the invention
The purpose of this invention is to provide a kind of coagulation composite sealing agent; The plugging agent that employing has the shutoff of condensing, repairs ravelly ground, bonding capacity is strong; The shortcoming or the deficiency that overcome effectively or avoid existing in the above-mentioned prior art; Improve ravelly ground pressure-bearing plugging effect effectively, increase substantially drilling speed, reduce drilling well and always drop into.
Coagulation composite sealing agent of the present invention, its composition and content are weight part:
Water glass 3-6; Potassium silicate 2-4; Natural manganese dioxide 10-20; Lime carbonate 20-30; Oyster shell whiting 15-30; Quicklime 5-10
Compound method: the material of above-mentioned component, mixing and stirring gets final product at normal temperatures and pressures.
The present invention has following advantage or beneficial effect compared with prior art:
1, have the very strong function of condensing, can well repair the ravelly ground borehole wall.
2, have very strong shut-off capacity, can be used for the low pressure weak zone, but shutoff slit formation stratum again.
3, have certain intensity after condensing, can improve the bearing capacity on broken leakage stratum.
4, good rheological property, sealing ratiod are high, the performance of condensing is adjustable.
5, the leak stopping slurries condense after can getting into the drop ply certain depth, have glued reinforcement ability simultaneously;
6. nontoxic, pollution-free, construction safety, preparation is simple, easy to operate, the leak stopping success ratio high.
Five, embodiment: a kind of coagulation composite sealing agent, its composition and content, content are weight part:
Water glass 3-6; Potassium silicate 2-4; Natural manganese dioxide 10-20; Lime carbonate 20-30; Oyster shell whiting 15-30; Quicklime 5-10
Compound method: the material of above-mentioned component mixing and stirring at normal temperatures and pressures gets final product.
Provide following specific embodiment below, its component and content, content are weight part:
The 1st example
Water glass 3 potassium silicates 2 Natural manganese dioxide 10 lime carbonate 20 oyster shell whitings 15 quicklime 5.Mixing and stirring at normal temperatures and pressures.
The 2nd example
Water glass 4 potassium silicates 3 Natural manganese dioxide 15 lime carbonate 25 oyster shell whitings 20 quicklime 6.Mixing and stirring at normal temperatures and pressures.
The 3rd example
Water glass 5 potassium silicates 3.5 Natural manganese dioxide 18 lime carbonate 28 oyster shell whitings 25 quicklime 8.Mixing and stirring at normal temperatures and pressures.
The 4th example
Water glass 6 potassium silicates 4 Natural manganese dioxide 20 lime carbonate 30 oyster shell whitings 30 quicklime 10.Mixing and stirring at normal temperatures and pressures.
Wherein, the 1st example, the 2nd example, the 3rd example are embodiment, and the 4th example is a comparative example.
Claims (1)
1. coagulation composite sealing agent, its component and weight part thereof are:
1. water glass 3-6
2. potassium silicate 2-4
3. Natural manganese dioxide 10-20
4. lime carbonate 20-30
5. oyster shell whiting 15-30
6. quicklime 5-10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2009100165709A CN101693827B (en) | 2009-06-17 | 2009-06-17 | Coagulation composite sealing agent |
Applications Claiming Priority (1)
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CN2009100165709A CN101693827B (en) | 2009-06-17 | 2009-06-17 | Coagulation composite sealing agent |
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CN101693827A CN101693827A (en) | 2010-04-14 |
CN101693827B true CN101693827B (en) | 2012-05-30 |
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CN2009100165709A Active CN101693827B (en) | 2009-06-17 | 2009-06-17 | Coagulation composite sealing agent |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103740348A (en) * | 2013-12-31 | 2014-04-23 | 东营泰尔石油技术有限公司 | Leaking stoppage reinforcing agent |
Families Citing this family (11)
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CN102277145B (en) * | 2011-06-03 | 2012-09-12 | 西南石油大学 | Magnesium-oxygen cement slurry used for reservoir water plugging, leak plugging and temporary-closure plugging in oil and gas well and preparation method thereof |
CN103087687B (en) * | 2011-10-28 | 2015-02-18 | 中国石油化工股份有限公司 | Anti-backflow leak-stopping agent, preparation method and applications thereof |
CN103740351B (en) * | 2013-12-31 | 2016-08-17 | 东营泰尔石油技术有限公司 | Low-density consolidation type sealing agent |
CN103773335B (en) * | 2013-12-31 | 2016-02-24 | 东营泰尔石油技术有限公司 | Acidificable consolidation type plugging agent |
CN105969322A (en) * | 2016-06-03 | 2016-09-28 | 中国海洋石油总公司 | Temporarily-plugging agent for reservoir drilling fluid and preparation method of temporarily-plugging agent |
CN106495640A (en) * | 2016-10-29 | 2017-03-15 | 张静 | A kind of preparation method of anti-leakage blocking agent |
CN110606500A (en) * | 2019-10-17 | 2019-12-24 | 四川新莱特新型建材有限公司 | Production process of calcium carbonate-magnesium oxide composite nano material |
CN110951471A (en) * | 2019-12-20 | 2020-04-03 | 山东华越天成石油技术有限责任公司 | Coagulation plugging slurry |
CN110734748A (en) * | 2019-12-20 | 2020-01-31 | 山东华越天成石油技术有限责任公司 | leak-proof plugging filling agent |
CN110872500A (en) * | 2019-12-20 | 2020-03-10 | 山东华越天成石油技术有限责任公司 | Asphalt layer leakage plugging slurry |
CN112195017A (en) * | 2020-10-10 | 2021-01-08 | 蒙吉光 | Plugging agent, preparation method and application thereof in well drilling plugging |
Citations (2)
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CN1096537C (en) * | 1999-07-12 | 2002-12-18 | 四川石油管理局川东钻探公司 | Acid-soluble plugging agent |
CN1432620A (en) * | 2002-01-14 | 2003-07-30 | 中国石油化工股份有限公司 | Temporary leakage-stopping agent for well drilling shielding and its application |
-
2009
- 2009-06-17 CN CN2009100165709A patent/CN101693827B/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1096537C (en) * | 1999-07-12 | 2002-12-18 | 四川石油管理局川东钻探公司 | Acid-soluble plugging agent |
CN1432620A (en) * | 2002-01-14 | 2003-07-30 | 中国石油化工股份有限公司 | Temporary leakage-stopping agent for well drilling shielding and its application |
Non-Patent Citations (2)
Title |
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南国立等.中原油田封堵大孔道技术研究.《钻采工艺》.1999,第22卷(第6期),33-37. * |
王中华等.第七节 堵漏剂.《油田化学品实用手册》.2004,148-154. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103740348A (en) * | 2013-12-31 | 2014-04-23 | 东营泰尔石油技术有限公司 | Leaking stoppage reinforcing agent |
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CN101693827A (en) | 2010-04-14 |
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