CN1276052C - Lost circulation additives and drilling fluid in serious thief zone - Google Patents
Lost circulation additives and drilling fluid in serious thief zone Download PDFInfo
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- CN1276052C CN1276052C CN 200410024325 CN200410024325A CN1276052C CN 1276052 C CN1276052 C CN 1276052C CN 200410024325 CN200410024325 CN 200410024325 CN 200410024325 A CN200410024325 A CN 200410024325A CN 1276052 C CN1276052 C CN 1276052C
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- 238000005553 drilling Methods 0.000 title claims abstract description 28
- 239000012530 fluid Substances 0.000 title claims abstract description 17
- 239000000654 additive Substances 0.000 title claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 49
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 10
- 150000003863 ammonium salts Chemical class 0.000 claims description 10
- 238000005728 strengthening Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 8
- 235000017550 sodium carbonate Nutrition 0.000 claims description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 6
- 240000008042 Zea mays Species 0.000 claims description 6
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 6
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 235000005822 corn Nutrition 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 235000013311 vegetables Nutrition 0.000 claims description 6
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000002981 blocking agent Substances 0.000 abstract description 2
- 239000003607 modifier Substances 0.000 abstract 2
- 239000000440 bentonite Substances 0.000 abstract 1
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000012744 reinforcing agent Substances 0.000 abstract 1
- -1 ethanol amide Chemical class 0.000 description 12
- 244000132059 Carica parviflora Species 0.000 description 8
- 235000014653 Carica parviflora Nutrition 0.000 description 8
- 238000006277 sulfonation reaction Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 5
- HDYQOBVUAYGAIM-UHFFFAOYSA-N C(C=C)(=O)N.[Na].CC=C Chemical compound C(C=C)(=O)N.[Na].CC=C HDYQOBVUAYGAIM-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- 239000010903 husk Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000013201 Stress fracture Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Material Composition (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The present invention discloses a drill following leakage blocking and well drilling fluid for a stratum with serious leakage loss, which comprises (A) base slurry: 4 to 6 portions by weight of bentonite, 0.2 to 0.3 portion by weight of sodium carbonate and 100 portions by weight of water, (B) additives: (1) 0.5 to 3 portions by weight of stickiness lifting agent SD-LHV, (2) 0.5 to 2.5 portions by weight of filtering loss lowering agent SK-II, (3) 0.5 to 2.5 portions by weight of flow type modifier SD-R, (4) 0.5 to 5 portions by weight of density modifier SD-D, (5) 2 to 8 portions by weight of filling reinforcing agent MF-I, (6) 2 to 15 portions by weight of connecting agent MD-III and (7) 8 to 20 portions by weight of bridge blocking agent MD-II. The well drilling fluid has the characteristics of multiple functions and strong adaptability. The well drilling fluid not only can be used as leakage blocking fluid, but also can be used as well drilling fluid. The well drilling fluid not only can be applied to a leakage loss layer with low pressure, but also can be applied to a high permeation layer, a crack solution cavity type stratum, the same layer of leakage and storage, etc. The well drilling fluid is mainly applied to a drill following leakage blocking and well drilling process for a stratum with serious leakage loss.
Description
One, technical field
The present invention relates to drilling plugging agent, particularly a kind of drilling leakage blockage liquid or drilling fluid.
Two, background technology
Plugging agent and leakage-stop liquid that existing petroleum drilling uses, (1) bridging plug blocking agent is arranged, prescription is: wilkinite 1-5 part nut-shell 1-5 part mica 1-5 part, water is made into, its shortcoming or deficiency are the construction technology complexity, long construction period can only block up the bearing capacity that can not improve the stratum temporarily, and the leak stopping success ratio is low; (2) quick talking cement, filling a prescription is: 100 parts of oil well cements, water 40-50 part, setting accelerator 5-30 part, its shortcoming or deficiency are the cement density height, but thickening time, gelation time and pump time are difficult to control, grout very easily takes place run off fast or the fast setting problem, construction safety is difficult to guarantee; (3) DCM plugging agent, filling a prescription is: bridging agent 5-7 part, weighting agent 70-75 part, propping agent 1-5 part, 15 parts of tougheners, solidifying agent 0.1-0.5 part, its shortcoming or deficiency are only to be applicable to that the shutoff microfracture slightly misses the stratum.In a word, above-mentioned plugging agent function singleness, a little less than the adaptability, weak effect, use cost height, the blocking construction cycle is long, during the low-pressure stratum construction, density can not reduce, aggravation leakage degree, particularly those serious thief zones and leakage storage are caused severe contamination or injury with the stratum of layer, greatly reduce oil recovery factor.
Three, summary of the invention
The technical problem that the present invention solves provides a kind of improved drilling leakage blockage liquid or drilling fluid, and shortcoming or deficiency that it can overcome effectively or avoid existing in the above-mentioned prior art improve plugging effect and drilling speed effectively.
Drilling leakage blockage liquid of the present invention or drilling fluid, it consists of, weight part:
(A) base slurry: wilkinite 4-6 soda ash 0.2-0.3 water 100
(B) additive: 1. carry stick SD-LHV 0.5--3
2. fluid loss agent SK-II 0.5--2.5
3. flow pattern regulator SD-R 0.5--2.5
4. density adjuster SD-D 0.5--5
5. fill strengthening agent MF-1 2--8
6. linking agent MD-III 2--15
7. bridging agent MD-II 8--20
Wherein, the described stick SD-LHV that carries, content 0.5-3 part, by the ratio of CMC: XC: HEC=0.5-2: 1-3: 0.5-2 combined efficiently carry stick.Described fluid loss agent SK-II, content 0.5-2.5 part is acrylic-multipolymer.Described flow pattern regulator SD-R, content 0.5-2.5 part is combined by the ratio of ammonium salt: XY-27: 80A-51=3-7: 6-10: 3-7.Described density adjuster SD-D, content 0.5-5 part is combined by the ratio of ABS: AS: F873=2-4: 2-4: 6-10.Described filling strengthening agent MF-1, content 2-8 part, by calcium carbonate superfine powder: the ratio of oil-soluble resin: silicate=2-4: 3-6: 5-10 is combined.Described linking agent MD-III, content 2-15 part, by furfural: the ratio of particle shell: vegetable fibre=3-7: 4-8: 1-5 is combined.The bridging agent MD-II of institute, content 8-20 part, by sawdust: the ratio of cotton seed hull: corn cob=6-10: 4-8: 3-7 is combined.
Compound method: conventional compound method preparation.Preparation (A) adds (B) in (A) more successively earlier.
The present invention has following advantage or beneficial effect compared with prior art:
1, function is many, adaptability is strong, both can be used as leakage-stop liquid, can be used as drilling fluid again, both can apply to the low pressure weak zone, can apply to most permeable zone, solution cavity type stratum, crack again, and leaks storage with layer.
2, adopted the leak-stopping additive,, in leakage channel, formed the shutoff barrier fast, improved reinforcement ability and bearing capacity, reached more than 98% according to the measuring and calculating sealing ratiod as efficient linking agent, filling strengthening agent.
3, have leakproof, leak stopping, leakage function, can improve drilling speed, can improve leakage strata drilling speed more than 50% according to measuring and calculating.
4, the Auto-regulating System of Density of Heavy Medium scope is wide, can reduce density in the low-pressure stratum construction.
5, improve the repair ability and the cementing quality on leakage stratum, electrical measurement success ratio and well cementation good rate equal 100% are up to standard.
6, leak storage and have selectivity, block drop ply with layer leak stopping, the protection oil reservoir, use cost is low.
7, can simplify the serious thief zone drilling program.
8, be the drilling fluid flow pattern of high-ductility, low power.
Four, description of drawings
No accompanying drawing.
Five, embodiment:
By drilling leakage blockage liquid of the present invention or drilling fluid, it consists of, weight part:
(A) base slurry: wilkinite 4-6 soda ash 0.2-0.3 water 100
(B) additive: 1. carry stick SD-LHV 0.5--3
2. fluid loss agent SK-II 0.5-2.5
3. flow pattern regulator SD-R 0.5-2.5
4. density adjuster SD-D 0.5-5
5. fill strengthening agent MF-1 2-8
6. linking agent MD-3 2-15
7. bridging agent MD-2 8-20
Compound method: conventional compound method preparation.Preparation (A) earlier adds in (A) with (B) more successively:
The 1st example
(A) base slurry: wilkinite 4 soda ash 0.2 water 100
(B) additive:
1. carry 0.5 part of stick SD-LHV, combined by the ratio of CMC (Xylo-Mucine): XC (biological polymer): HEC (Natvosol)=0.5: 1: 0.5;
2. fluid loss agent SK-II is an acrylic-multipolymer, is 0.5 part;
3. flow pattern regulator SD-R is 0.5 part, and is combined by the ratio of ammonium salt (hydrolyzed polyacrylonitrile ammonium salt): XY-27 (vinyl monomer multiple copolymer): 80A-51 (acrylamide propylene sodium multipolymer)=3: 6: 3;
4. density adjuster SD-D is 0.5 part, and is combined by the ratio of ABS (Sodium dodecylbenzene sulfonate): AS (alkyl sodium sulfonate): F873 (mixture of Oleum Cocois single ethanol amide sulfonation coral amber acid esters disodium salt and fatty alcohol-ether sulfonation coral amber acid esters disodium salt)=2: 2: 6;
5. fill strengthening agent MF-12 part, by calcium carbonate superfine powder: oil-soluble resin (paraffin): the ratio of silicate (water glass)=2: 3: 5 is combined;
6. linking agent MD-III is 2 parts, and by furfural: rice husk: the ratio of vegetable fibre (unginned cotton)=3: 4: 1 is combined;
7. bridging agent MD-II is 8 parts, and by sawdust: cotton seed hull: the ratio of corn cob=6: 4: 3 is combined.
The 2nd example
(A) base slurry: wilkinite 4 soda ash 0.2 water 100
(B) additive:
1. carry 2 parts of stick SD-LHV, combined by the ratio of CMC (Xylo-Mucine): XC (biological polymer): HEC (Natvosol)=1: 2: 1;
2. fluid loss agent SK-II is 1.2 parts;
3. flow pattern regulator SD-R is 1.5 parts, and is combined by the ratio of ammonium salt (hydrolyzed polyacrylonitrile ammonium salt): XY-27 (vinyl monomer multiple copolymer): 80A-51 (acrylamide propylene sodium multipolymer)=4: 8: 5;
4. density adjuster SD-D is 2.5 parts, and is combined by the ratio of ABS (Sodium dodecylbenzene sulfonate): AS (alkyl sodium sulfonate): F873 (mixture of Oleum Cocois single ethanol amide sulfonation coral amber acid esters disodium salt and fatty alcohol-ether sulfonation coral amber acid esters disodium salt)=3: 3: 8;
5. fill strengthening agent MF-15 part, by calcium carbonate superfine powder (460 order): oil-soluble resin (paraffin): the ratio of silicate (water glass)=3: 4.5: 8 is combined;
6. linking agent MD-III is 9 parts, and by furfural: particle shell (rice husk): the ratio of vegetable fibre (unginned cotton)=4: 6: 3 is combined;
7. bridging agent MD-II is 15 parts, and by sawdust: cotton seed hull: the ratio of corn cob=8: 6: 4 is combined.
The 3rd example
(A) base slurry: wilkinite 4 soda ash 0.3 water 100
(B) additive:
1. carry 3 parts of stick SD-LHV, combined by the ratio of CMC (Xylo-Mucine): XC (biological polymer): HEC (Natvosol)=2: 3: 2;
2. fluid loss agent SK-II is 2.5 parts;
3. flow pattern regulator SD-R is 2.5 parts, and is combined by the ratio of ammonium salt (hydrolyzed polyacrylonitrile ammonium salt): XY-27 (vinyl monomer multiple copolymer): 80A-51 (acrylamide propylene sodium multipolymer)=7: 10: 7;
4. density adjuster SD-D is 5 parts, and is combined by the ratio of ABS (Sodium dodecylbenzene sulfonate): AS (alkyl sodium sulfonate): F873 (mixture of Oleum Cocois single ethanol amide sulfonation coral amber acid esters disodium salt and fatty alcohol-ether sulfonation coral amber acid esters disodium salt)=4: 6: 10;
5. fill strengthening agent MF-18 part, by calcium carbonate superfine powder: oil-soluble resin (paraffin): the ratio of silicate (water glass)=4: 6: 10 is combined;
6. linking agent MD-III is 15 parts, and by furfural: particle shell (rice husk): the ratio of vegetable fibre (unginned cotton)=7: 8: 5 is combined;
7. bridging agent MD-II is 20 parts, and by sawdust: cotton seed hull: the ratio of corn cob=10: 8: 7 is combined.
The 4th example
(A) base slurry: wilkinite 5 soda ash 0.3 water 100
(B) additive:
1. carry 0.8 part of stick SD-LHV, by CMC (Xylo-Mucine): XC (biological polymer): HEC (Natvosol)=1: 2: the ratio of I was combined;
2. fluid loss agent SK-II is 1.0 parts;
3. flow pattern regulator SD-R is 1.0 parts, and is combined by the ratio of ammonium salt (hydrolyzed polyacrylonitrile ammonium salt): XY-27 (vinyl monomer multiple copolymer): 80A-51 (acrylamide propylene sodium multipolymer)=5: 8: 5;
4. density adjuster SD-D is 3 parts, and is combined by the ratio of ABS (Sodium dodecylbenzene sulfonate): AS (alkyl sodium sulfonate): F873 (mixture of Oleum Cocois single ethanol amide sulfonation coral amber acid esters disodium salt and fatty alcohol-ether sulfonation coral amber acid esters disodium salt)=3: 3: 8;
5. fill strengthening agent MF-15 part, by calcium carbonate superfine powder: oil-soluble resin (paraffin): the ratio of silicate (water glass)=3: 5: 8 is combined;
6. linking agent MD-III is 5 parts, and by furfural: rice husk: the ratio of vegetable fibre (unginned cotton)=5: 6: 3 is combined;
7. bridging agent MD-II is 10 parts, and by sawdust: cotton seed hull: the ratio of corn cob=8: 6: 5 is combined.More than each example be conventional preparation, wherein, the 1st example, the 2nd example, the 3rd example are embodiment, the 4th example is a comparative example, its every performance test data such as following table:
| Embodiment | Sealing ratiod % | Bearing capacity MPa | Suspension stability h | Auto-regulating System of Density of Heavy Medium rate % | The molten rate % of acid |
| The 1st example | 96 | 20 | 200 | 25 | 92 |
| The 2nd example | 98 | 20 | 220 | 28 | 93 |
| The 3rd example | 99 | 20 | 240 | 29 | 91 |
| The 4th example | 97 | 20 | 210 | 26 | 90 |
As seen from the above table, no matter the present invention as leakage-stop liquid, still is that performance all is superior as drilling fluid.
Claims (1)
1, a kind of drilling leakage blockage liquid or drilling fluid, it consists of, weight part:
(A) base slurry: wilkinite 4-6 soda ash 0.2-0.3 water 100
(B) additive: 1. carry stick SD-LHV 0.5-3
2. fluid loss agent SK-II 0.5-2.5
3. flow pattern regulator SD-R 0.5-2.5
4. density adjuster SD-D 0.5-5
5. fill strengthening agent MF-1 2-8
6. linking agent MD-III 2-15
7. bridging agent MD-II 8-20
It is wherein said that to carry stick SD-LHV combined by the ratio of CMC: XC: HEC=0.5-2: 1-3: 0.5-2;
Fluid loss agent SK-II is an acrylic-multipolymer;
Flow pattern regulator SD-R is combined by the ratio of hydrolyzed polyacrylonitrile ammonium salt: XY-27: 80A-51=3-7: 6-10: 3-7;
Density adjuster SD-D is combined by the ratio of ABS: AS: F873=2-4: 2-4: 6-10;
Fill strengthening agent MF-1 by calcium carbonate superfine powder: the ratio of oil-soluble resin: silicate=2-4: 3-6: 5-10 is combined;
Linking agent MD-III is by furfural: the ratio of particle shell: vegetable fibre=3-7: 4-8: 1-5 is combined;
Bridging agent MD-II is by sawdust: the ratio of cotton seed hull: corn cob=6-10: 4-8: 3-7 is combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024325 CN1276052C (en) | 2004-06-09 | 2004-06-09 | Lost circulation additives and drilling fluid in serious thief zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024325 CN1276052C (en) | 2004-06-09 | 2004-06-09 | Lost circulation additives and drilling fluid in serious thief zone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1583941A CN1583941A (en) | 2005-02-23 |
| CN1276052C true CN1276052C (en) | 2006-09-20 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410024325 Expired - Lifetime CN1276052C (en) | 2004-06-09 | 2004-06-09 | Lost circulation additives and drilling fluid in serious thief zone |
Country Status (1)
| Country | Link |
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| CN (1) | CN1276052C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11592230B2 (en) | 2015-08-03 | 2023-02-28 | Lg Electronics Inc. | Vacuum adiabatic body and refrigerator |
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| CN101182409B (en) * | 2007-10-27 | 2010-06-02 | 东营泰尔石油技术有限公司 | Anti-collapse circulative micro-foam drilling fluid or well completion fluid |
| CN101638576B (en) * | 2009-08-25 | 2012-04-25 | 谢军 | Shielding and temporary plugging gelling agent for drilling fluid and production method and use method thereof |
| CN102410022B (en) * | 2010-09-21 | 2013-11-13 | 中国石油天然气集团公司 | Method for protecting fissured carbonate reservoir |
| CN102093855B (en) * | 2010-12-17 | 2013-05-15 | 中国石油集团长城钻探工程有限公司 | Organic soil and preparation method thereof |
| CN102653673B (en) * | 2012-01-05 | 2014-05-14 | 中国石油天然气股份有限公司 | Biodegradable temporary plugging agent |
| CN103773339B (en) * | 2013-12-31 | 2016-02-24 | 东营泰尔石油技术有限公司 | High-density consolidation type plugging agent |
| CN103740341B (en) * | 2013-12-31 | 2016-01-13 | 东营泰尔石油技术有限公司 | The agent of leak stopping pressure-bearing |
| CN110359897A (en) * | 2018-03-13 | 2019-10-22 | 西南石油大学 | A kind of fracture-type reservoir cracks seam with boring leak-proof leak-stopping method in advance |
| 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 |
| CN109575891A (en) * | 2018-11-19 | 2019-04-05 | 中石油煤层气有限责任公司 | A kind of leak stopping slurry 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 |
| 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 |
| CN111040748B (en) * | 2019-12-20 | 2022-05-17 | 东营泰尔石油技术有限公司 | Low-density high-bridge plug plugging slurry |
-
2004
- 2004-06-09 CN CN 200410024325 patent/CN1276052C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11592230B2 (en) | 2015-08-03 | 2023-02-28 | Lg Electronics Inc. | Vacuum adiabatic body and refrigerator |
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| Publication number | Publication date |
|---|---|
| CN1583941A (en) | 2005-02-23 |
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