CN101906290A - While-drilling leak resisting and sealing drilling liquid for leakage formation - Google Patents
While-drilling leak resisting and sealing drilling liquid for leakage formation Download PDFInfo
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- CN101906290A CN101906290A CN2009100865509A CN200910086550A CN101906290A CN 101906290 A CN101906290 A CN 101906290A CN 2009100865509 A CN2009100865509 A CN 2009100865509A CN 200910086550 A CN200910086550 A CN 200910086550A CN 101906290 A CN101906290 A CN 101906290A
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Abstract
The invention relates to while-drilling leak resisting and sealing drilling liquid for a leakage formation. In the invention, 100 weight parts of clear water, 1 to 5 weight parts of caustic soda, 1 to 10 weight parts of soda ash, 3 to 10 weight parts of poly anionic cellulose and 3 to 15 weight parts of sodium bentonite are stirred uniformly to form base grouting; and 3 to 10 weight parts of gel leak sealing agent, 3 to 15 weight parts of bridge additive and 3 to 10 weight parts of asphalt powder are added into the base grouting with stirring and the mixture is stirred uniformly. The while-drilling leak resisting and sealing drilling liquid for the leakage formation has the advantages that: the solid-phase content is less than 3 percent; and the damages to an oil layer are reduced.
Description
Technical field
The present invention relates to a kind of While-drilling leak resisting and sealing drilling liquid for leakage formation.
Background technology
The ultra-low penetration oil reservoir is meant the oil reservoir that absolute permeability is little, and this oil reservoir is very responsive to the injury of drilling fluid, if improper to this class oil layer protection in the drilling process, can have a strong impact on oil well output.
The per-well production of ultra-low penetration oil reservoir is lower, and per-well production is generally 2～5 tons/day, and for improving per-well production, this just requires drilling fluid little to the injury of oil reservoir, can the better protecting oil reservoir.Because of missing existing solids content of drilling fluid than higher, solid phase particles is invaded the oil reservoir hole, causes the oil reservoir injury easily.
Summary of the invention
The object of the present invention is to provide a kind of convenience, economic solid load While-drilling leak resisting and sealing drilling liquid for leakage formation less than 3% protection ultra-low penetration oil reservoir.
The preparation method is:
1. by weight, get 100 parts in clear water, add caustic soda 1-5 part, soda ash 1-10 part, Polyanionic Cellulose 3-10 part and sodium bentonite 3-15 part, stir, form the base slurry;
2. in above-mentioned base slurry, add GEL USED FOR PLUGGING WELL LOST CIRCULATION (high polymer polyacrylamide water-absorbing resin plugging agent) 3-10 part, bridging agent (forming) 3-15 part, asphalt powder 3-10 part while stirring, stir and just can use by cotton seed hulls, monofilament, mica or vermiculite and varigrained hard particles material nut-shell, rubber grain or rice stone.
The present invention is a While-drilling leak resisting and sealing drilling liquid for leakage formation, and solid load has reduced the injury to oil reservoir less than 3%.
Embodiment
Embodiment 1:
In agitator, add 100 parts of water, add 3 parts of 1 part in caustic soda, 1 part of soda ash, 3 parts of Polyanionic Celluloses and sodium bentonites while stirring; 3 parts of GEL USED FOR PLUGGING WELL LOST CIRCULATION, 3 parts of bridging agents, 3 parts of asphalt powders.Stirring, it is of the present invention with boring the leak-proof leak-stopping drilling fluid promptly to obtain.
The used starting material of this example can have been bought from the market.
Embodiment 2:
In agitator, add 100 parts of water, add 5 parts in caustic soda, 10 parts of soda ash, 10 parts of Polyanionic Celluloses and sodium bentonite 3-15 part while stirring; 10 parts of GEL USED FOR PLUGGING WELL LOST CIRCULATION, 15 parts of bridging agents, 10 parts of asphalt powders.Stirring, it is of the present invention with boring the leak-proof leak-stopping drilling fluid promptly to obtain.
Embodiment 3:
In agitator, add 100 parts of water, add 10 parts of 3 parts in caustic soda, 5 parts of soda ash, 5 parts of Polyanionic Celluloses and sodium bentonites in while stirring; 5 parts of GEL USED FOR PLUGGING WELL LOST CIRCULATION, 10 parts of bridging agents, 5 parts of asphalt powders.Stirring, it is of the present invention with boring the leak-proof leak-stopping drilling fluid promptly to obtain.
Embodiment 4:
In agitator, add 100 parts of water, add 3 parts of 1 part in caustic soda, 1 part of soda ash, 3 parts of Polyanionic Celluloses and sodium bentonites in while stirring; 3 parts of GEL USED FOR PLUGGING WELL LOST CIRCULATION, 3 parts of plugging agents, 3 parts of asphalt powders.Stirring, it is of the present invention with boring the leak-proof leak-stopping drilling fluid promptly to obtain.
The used starting material of this example can have been bought from the market.
Claims (1)
1. a While-drilling leak resisting and sealing drilling liquid for leakage formation is characterized in that: get 100 parts in clear water by weight, add caustic soda 1-5 part, soda ash 1-10 part, Polyanionic Cellulose 3-10 part and sodium bentonite 3-15 part, stir, form the base slurry;
Add GEL USED FOR PLUGGING WELL LOST CIRCULATION 3-10 part, bridging agent 3-15 part, asphalt powder 3-10 part while stirring in above-mentioned base slurry, stirring gets final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100865509A CN101906290A (en) | 2009-06-05 | 2009-06-05 | While-drilling leak resisting and sealing drilling liquid for leakage formation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100865509A CN101906290A (en) | 2009-06-05 | 2009-06-05 | While-drilling leak resisting and sealing drilling liquid for leakage formation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101906290A true CN101906290A (en) | 2010-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100865509A Pending CN101906290A (en) | 2009-06-05 | 2009-06-05 | While-drilling leak resisting and sealing drilling liquid for leakage formation |
Country Status (1)
| Country | Link |
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| CN (1) | CN101906290A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703044A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel cement slurry plugging fluid |
| CN102703043A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel plugging material |
| CN109072057A (en) * | 2016-04-01 | 2018-12-21 | 沙特阿拉伯石油公司 | The improvement of bentonite property for drilling fluid |
| CN109135695A (en) * | 2018-09-07 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of molten plugging drilling fluid of theobromine and preparation method thereof |
| CN110903815A (en) * | 2019-12-20 | 2020-03-24 | 东营泰尔石油技术有限公司 | High-strength leakage-stopping slurry |
| CN111577197A (en) * | 2020-05-28 | 2020-08-25 | 中国石油集团渤海钻探工程有限公司 | Quick plugging method suitable for temperature of lost stratum being more than or equal to 80 DEG C |
| CN111808582A (en) * | 2020-08-07 | 2020-10-23 | 西南石油大学 | Plugging agent for drilling fluid and preparation method thereof |
-
2009
- 2009-06-05 CN CN2009100865509A patent/CN101906290A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102703044A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel cement slurry plugging fluid |
| CN102703043A (en) * | 2012-05-23 | 2012-10-03 | 成都欧美科石油科技股份有限公司 | Novel plugging material |
| CN109072057A (en) * | 2016-04-01 | 2018-12-21 | 沙特阿拉伯石油公司 | The improvement of bentonite property for drilling fluid |
| CN109135695A (en) * | 2018-09-07 | 2019-01-04 | 中国石油化工股份有限公司 | A kind of molten plugging drilling fluid of theobromine and preparation method thereof |
| CN110903815A (en) * | 2019-12-20 | 2020-03-24 | 东营泰尔石油技术有限公司 | High-strength leakage-stopping slurry |
| CN111577197A (en) * | 2020-05-28 | 2020-08-25 | 中国石油集团渤海钻探工程有限公司 | Quick plugging method suitable for temperature of lost stratum being more than or equal to 80 DEG C |
| CN111577197B (en) * | 2020-05-28 | 2022-04-29 | 中国石油集团渤海钻探工程有限公司 | Quick plugging method suitable for temperature of lost stratum being more than or equal to 80 DEG C |
| CN111808582A (en) * | 2020-08-07 | 2020-10-23 | 西南石油大学 | Plugging agent for drilling fluid and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20101208 |