CN101942294A - Offshore drilling fluid system and preparation method thereof - Google Patents
Offshore drilling fluid system and preparation method thereof Download PDFInfo
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- CN101942294A CN101942294A CN2010102472579A CN201010247257A CN101942294A CN 101942294 A CN101942294 A CN 101942294A CN 2010102472579 A CN2010102472579 A CN 2010102472579A CN 201010247257 A CN201010247257 A CN 201010247257A CN 101942294 A CN101942294 A CN 101942294A
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Abstract
The invention discloses an offshore drilling fluid system which has double protection functions of an oil-gas layer as well as environment, wherein the main treated agent of the system is a natural modified substance; the waste drilling fluid can realize offshore in-situ discharge or discharge in other places, and the drilling fluid has high acute biological toxicity EC 50 value and is biodegradable, thus greatly lowering environmental pollution of the drilling fluid to marine environment.
Description
Technical field
The present invention relates to a kind of drilling fluid system, particularly a kind of marine drilling liquid system and preparation method thereof.
Background technology
The be known as blood of drilling well of drilling fluid, good drilling liquid technology be guarantee drilling well production operation safety, high-quality, efficiently, one of important safeguard measure fast, must use drilling well/well finishing liquid in the oil-field development operation.In drilling process and after the drilling well end, drilling well/well finishing liquid and waste thereof can enter surrounding environment.Increasingly stringent along with the strong day by day and enviromental protection law rules of Environmental awareness in the world wide; drilling well/well finishing liquid and waste thereof have caused home and abroad environment protection circle, petroleum industrial circle and many public's common concern to the influence of environment, and this problem at sea oil field seems particularly outstanding.
In the Process of Oil Well Drilling, often use polymer drilling fluid and oil base drilling fluids such as sulphonated polymer mud at sea, comprise the oil-containing drilling fluid additive.
These drilling fluids have satisfied the needs of offshore drilling engineering preferably, but also brought problem of environmental pollution after using to ocean environment, mainly show: (1) oil-containing rejected well drilling liquid discharge into sea, oils will be separated from rejected well drilling liquid, the floating oil slick that forms across the sea.Oil slick can cause a series of harm to ocean environment: 1. oils swims in the seawater water surface and forms oil film, influences seawater and atmospheric exchange, reduces dissolved oxygen of seawater, causes the massive losses of marine organisms or sea fisheries; 2. oil film drifts about with sea wind, usually to bay and the drift of travelling scenery district, influences the color and the smell of seawater, thereby influences strand fisheries, tourism and industrial and agricultural production and domestic water, causes enormous economic loss or abominable social influence; 3. in oils and its degradation production, exist multiple toxic substance (as benzene, polycyclic aromatic hydrocarbons etc.), by hydrobiont absorption, enrichment, the effect by food chain enters human body to these materials then, is detrimental to health in seawater; 4. large-area ocean oil slick also can influence atmospheric circulation, and the harm Marine ecosystems cause the long term environmental effect that is difficult to estimate.(2) oils of not separating from rejected well drilling liquid can sink to the seabed with rejected well drilling liquid, and under the insufficient condition of seabed oxygen supply, the biological degradation of oils is very slow, can remain in the seabed for a long time.Oils can cause long-term effect and harm to ocean environment at the submarine extended residual, as influences the vegeto-animal growth and breeding in seabed.In addition, the oils that sinks in the submarine rejected well drilling liquid can progressively discharge, and influences halobiontic growth and breeding, or forms oil slick and cause multiple harm.
The marine eco-environment is the same with land ecotope; it is the important component part of China's ecotope; nineteen eighty-two; State Bureau of Environmental Protection, National Bureau of Oceanography issue laws and regulations such as " People's Republic of China's law of marine environmental protection ", " offshore oil drilling open loop border protection method " in succession; offshore drilling waste discharge rules are quite strict; for this reason, research environment-friendly type marine drilling liquid system, the environmental issue of paying close attention to drilling fluid from the source has become one of emphasis of offshore oil exploration exploitation efforts at environmental protection.
Summary of the invention
The object of the present invention is to provide a kind of marine drilling liquid system and preparation method thereof.This marine drilling liquid system has protection hydrocarbon zone and protection environment dual-use function, and the system main treating agent is natural substance modified thing, and the rejected well drilling liquid after the use can realize that the sea arranges the sea on the spot or shed acute biological toxicity EC with changeing
50Value is high, and is biodegradable.It has overcome the existing following problem of offshore drilling liquid: the discarded oil-containing drilling fluid that (1) arranges the sea on the spot can cause oil pollution to ocean environment; (2) the partial polymer heavy metal content exceeds standard in the drilling fluid system, simultaneously than difficult for biological degradation, causes potential, long-term pollution of the sea; (3) drilling fluid system such as oil base drilling fluid or sulphonated polymer mud acute biological toxicity EC
50Be worth lowlyer, be little poison or poisoning, can impact marine organisms, and by food chain remote effect human lives with healthy.
A kind of marine drilling liquid system among the present invention comprises following components in weight percentage (benchmark is the drilling fluid system gross weight):
0.5%-1.0% environment-friendly type coating agent coater-10,
The weak gel tackifier SDL-30 of 2.0%-3.0%,
1.5%-2.5% environment-friendly type fluid loss agent CMS-L,
Anti-collapse dose of SDE-1 of 2.0%-3.0% environment-friendly type,
Anti-collapse dose of SDA-25 of 2.0%-4.0% high temperature resistance,
Surplus is a seawater.
In the such scheme:
Environment-friendly type coating agent coater-10 is a white powder, and its preparation method is:
(1) preparation initiator (oxidized form and reduced form) solution: in 93.5mL water, add 6.5g ammonium persulphate and 6.5g S-WAT respectively, stir, to be triggered dose fully the dissolving after, promptly obtaining ammonium persulfate solution and concentration that concentration is 6.5% (wt) is the sodium sulfite solution of 6.5% (wt).
(2) add 25mL water in beaker, Xiang Shuizhong adds the 11.0g Methacrylamide, stirs and fully dissolving;
(3) add the 3.0g Sumstar 190, continue to stir, allow it fully dissolve;
(4) add the 7.0g sodium acrylate, continue fully to stir;
(5) add 5.0g pH value conditioning agent ammoniacal liquor, fully stir;
(6) add initiator: add the 2.0mL ammonium persulfate solution earlier, after fully stirring, add the 2.0mL sodium sulfite solution again, fully stir;
(7) continue to stir, begin heating after 5 minutes and be aggregated under the 40-50 ℃ of condition, reaction 2-4h gets the finished product coater-10.
Weak gel tackifier SDL-30 is a white powder, and its preparation method is:
(1) add 7.5g tensio-active agent OP-10 in the 150ml tap water, preparation obtains the 5% tensio-active agent OP-10 aqueous solution;
(2) the tensio-active agent OP-10 aqueous solution with 150g 5% joins in the reactor, adds the 100g xanthan gum while stirring, under 80-90 ℃ of temperature, and priming reaction 7h;
(3) activation back product gets intermediates after 105 ℃ of oven dry, pulverizing and crossing 200 mesh sieves.
(4) get intermediates 50.0g, carry out compoundly, obtain the weak gel tackifier SDL-30 of 100.0g with 40.0g HV-CMC and 10.0g potassium formiate.
Environment-friendly type fluid loss agent CMS-L is a white powder, and its composition is carboxymethyl cellulose CMS.
Anti-collapse dose of SDE-1 of environment-friendly type is orange thick liquid, and its preparation method is:
(1) in 200mL water, add 20.0g ethylene glycol, stir, it is fully dissolved;
(2) add the 10.0g polyoxyethylene glycol, continue to stir, it is fully dissolved;
(3) add 6.0g Repone K, continue to stir, it is fully dissolved;
(4) add the 2.0g trolamine, continue to stir, make all medicament thorough mixing, obtain anti-collapse dose of SDE-1 of environment-friendly type.
Anti-collapse dose of SDA-25 of high temperature resistance is pale yellow powder, and its preparation method is:
With 40.0g polyacrylonitrile sylvite, the 20.0g sulfonated phenol formaldehyde resin, the 25.0g oil-soluble resin, the 15.0g calcium carbonate superfine powder behind the uniform mixing, obtains anti-collapse dose of SDA-25 of 100.0g high temperature resistance.
The preparation method of a kind of marine drilling liquid system among the present invention comprises the steps:
(1) get quantitative seawater and join in the jar, turn on agitator stirs;
(2) add the environment-friendly type coating agent coater-10 that accounts for drilling fluid system gross weight 0.5%-1.0%, continue to stir, coating agent is fully dissolved;
(3) adding accounts for the weak gel tackifier SDL-30 of drilling fluid system gross weight 2.0%-3.0%, continues to stir, and allows it fully dissolve;
(4) adding accounts for drilling fluid system gross weight 1.5%-2.5% environment-friendly type fluid loss agent CMS-L, continues to stir to make dissolving evenly;
(5) adding accounts for anti-collapse dose of SDE-1 of drilling fluid system gross weight 2.0%-3.0% environment-friendly type, continues to stir;
(6) adding accounts for anti-collapse dose of SDA-25 of drilling fluid system gross weight 2.0%-4.0% high temperature resistance, continues to stir;
(7) treat the dissolving evenly of above drilling fluid additive after, obtain the finished product environment-friendly type marine drilling liquid system.
In the such scheme:
Environment-friendly type coating agent coater-10 is a white powder, and its preparation method is:
(1) preparation initiator (oxidized form and reduced form) solution: in 93.5mL water, add 6.5g ammonium persulphate and 6.5g S-WAT respectively, stir, to be triggered dose fully the dissolving after, promptly obtaining ammonium persulfate solution and concentration that concentration is 6.5% (wt) is the sodium sulfite solution of 6.5% (wt).
(2) add 25mL water in beaker, Xiang Shuizhong adds the 11.0g Methacrylamide, stirs and fully dissolving;
(3) add the 3.0g Sumstar 190, continue to stir, allow it fully dissolve;
(4) add the 7.0g sodium acrylate, continue fully to stir;
(5) add 5.0g pH value conditioning agent ammoniacal liquor, fully stir;
(6) add initiator: add the 2.0mL ammonium persulfate solution earlier, after fully stirring, add the 2.0mL sodium sulfite solution again, fully stir;
(7) continue to stir, begin heating after 5 minutes and be aggregated under the 40-50 ℃ of condition, reaction 2-4h gets the finished product coater-10.
Weak gel tackifier SDL-30 is a white powder, and its preparation method is:
(1) add 7.5g tensio-active agent OP-10 in the 150ml tap water, preparation obtains the 5% tensio-active agent OP-10 aqueous solution;
(2) the tensio-active agent OP-10 aqueous solution with 150g 5% joins in the reactor, adds the 100g xanthan gum while stirring, under 80-90 ℃ of temperature, and priming reaction 7h;
(3) activation back product gets intermediates after 105 ℃ of oven dry, pulverizing and crossing 200 mesh sieves.
(4) get intermediates 50.0g, carry out compoundly, obtain the weak gel tackifier SDL-30 of 100.0g with 40.0g HV-CMC and 10.0g potassium formiate.
Environment-friendly type fluid loss agent CMS-L is a white powder, and its composition is carboxymethyl cellulose CMS.
Anti-collapse dose of SDE-1 of environment-friendly type is orange thick liquid, and its preparation method is:
(5) in 200mL water, add 20.0g ethylene glycol, stir, it is fully dissolved;
(6) add the 10.0g polyoxyethylene glycol, continue to stir, it is fully dissolved;
(7) add 6.0g Repone K, continue to stir, it is fully dissolved;
(8) add the 2.0g trolamine, continue to stir, make all medicament thorough mixing, obtain anti-collapse dose of SDE-1 of environment-friendly type.
Anti-collapse dose of SDA-25 of high temperature resistance is pale yellow powder, and its preparation method is:
With 40.0g polyacrylonitrile sylvite, the 20.0g sulfonated phenol formaldehyde resin, the 25.0g oil-soluble resin, the 15.0g calcium carbonate superfine powder behind the uniform mixing, obtains anti-collapse dose of SDA-25 of 100.0g high temperature resistance.
Use this marine drilling liquid system, have following advantage: satisfy the offshore drilling engine request, field maintemance is simple; Environment-friendly type marine drilling liquid system has good rheological, fluid loss is little, has satisfied marine to Different Strata drilling well requirement preferably; Simultaneously, system master's additive has only 5 kinds, and on-the-spot drilling fluid is safeguarded simple.Protect the marine environment; environment-friendly type marine drilling liquid system is the feedstock production drilling fluid additive with the natural biological copolymer; the heavy metal content of system and acute biological toxicity all satisfy GB 4914-2008 " offshore oil exploration and exploitation pollutant emission concentration limit " requirement, and biodegradable is good.The protection hydrocarbon zone, the permeability resume figure of environment-friendly type marine drilling liquid system can reach more than 90%, and the permeability resume figure behind the excision infringement end face has good reservoir protection effect more than 92%.
Embodiment
The preparation method of a kind of environment-friendly type marine drilling liquid system in according to the present invention comprises the steps:
(1) get quantitative seawater and join in the jar, turn on agitator stirs;
(2) add the environment-friendly type coating agent coater-10 that accounts for drilling fluid system gross weight 0.5%-1.0%, continue to stir, coating agent is fully dissolved;
(3) adding accounts for the weak gel tackifier SDL-30 of drilling fluid system gross weight 2.0%-3.0%, continues to stir, and allows it fully dissolve;
(4) adding accounts for drilling fluid system gross weight 1.5%-2.5% environment-friendly type fluid loss agent CMS-L, continues to stir to make dissolving evenly;
(5) adding accounts for anti-collapse dose of SDE-1 of drilling fluid system gross weight 2.0%-3.0% environment-friendly type, continues to stir;
(6) adding accounts for anti-collapse dose of SDA-25 of drilling fluid system gross weight 2.0%-4.0% high temperature resistance, continues to stir;
(7) treat the dissolving evenly of above drilling fluid additive after, obtain the finished product marine drilling liquid system.
Component percentages among the embodiment 1-3 all is to be the weight percent of benchmark with wellbore fluid.
Embodiment 1:
(1) get the 400mL seawater and join in the jar, turn on agitator stirs;
(2) add 0.5% environment-friendly type coating agent coater-10, continue to stir, coating agent is fully dissolved;
(3) add 2.0% weak gel tackifier, continue to stir, allow it fully dissolve;
(4) add 1.5% environment-friendly type fluid loss agent CMS-L, continue to stir to make and dissolve evenly;
(5) add anti-collapse dose of SDE-1 of 2.0% environment-friendly type, continue to stir;
(6) add anti-collapse dose of SDA-25 of 2.0% high temperature resistance, continue to stir;
(7) treat the dissolving evenly of above drilling fluid additive after, obtain the finished product marine drilling liquid system.
Embodiment 2:
(1) get the 400mL seawater and join in the jar, turn on agitator stirs;
(2) add 0.8% environment-friendly type coating agent coater-10, continue to stir, coating agent is fully dissolved;
(3) add 2.5% weak gel tackifier, continue to stir, allow it fully dissolve;
(4) add 2.0% environment-friendly type fluid loss agent CMS-L, continue to stir to make and dissolve evenly;
(5) add anti-collapse dose of SDE-1 of 2.5% environment-friendly type, continue to stir;
(6) add anti-collapse dose of SDA-25 of 3.0% high temperature resistance, continue to stir;
(7) treat the dissolving evenly of above drilling fluid additive after, obtain the finished product marine drilling liquid system.
Embodiment 3:
(1) get the 400mL seawater and join in the jar, turn on agitator stirs;
(2) add 1.0% environment-friendly type coating agent coater-10, continue to stir, coating agent is fully dissolved;
(3) add 3.0% weak gel tackifier, continue to stir, allow it fully dissolve;
(4) add 2.5% environment-friendly type fluid loss agent CMS-L, continue to stir to make and dissolve evenly;
(5) add anti-collapse dose of SDE-1 of 3.0% environment-friendly type, continue to stir;
(6) add anti-collapse dose of SDA-25 of 4.0% high temperature resistance, continue to stir;
(7) treat the dissolving evenly of above drilling fluid additive after, obtain the finished product marine drilling liquid system.
The embodiment method of evaluating performance
1, rheological property evaluation
Get the environment-friendly type marine drilling liquid system among the embodiment 1-3 for preparing, behind the stirring at low speed 5min, according to the φ that measures drilling fluid on the six fast rotational viscosimeters that is defined in of GB/T16783.1-2006
600, φ
300, φ
200, φ
100, φ
6, φ
3Viscosity, yield value, middle pressure API dehydration, HTHP (150 ℃, the 3.5Mpa) gel strength of dehydration and 10s, 10min.
Calculate:
PV＝φ
600-φ
300........................(1)
YP＝0.51×(φ
300-PV)...................(2)
G
10S(or G
10min)=φ
3/ 2.................. (3)
In the formula: PV---plastic viscosity, mPa.s;
YP---yield value, Pa;
φ
600, φ
300, φ
3---600r/min, 300r/min, the stable value of reading during 3r/min, mPa.s; G
10S, G
10min---the gel strength of 10s or 10min, Pa
φ
3---the 3r/min maximum value of reading when static 10s or 10min, mPa.s;
2, heat-resisting property evaluation
Get the environment-friendly type marine drilling liquid system among the embodiment 1-3 for preparing, behind the high-speed stirring 20min, the digestion tank of packing into, put into the roller stove, under 150 ℃, after constant temperature rolled 16 hours, take out and be cooled to room temperature, high again stir 5min after, by the φ that is defined in working sample solution on the six fast rotational viscosimeters of GB/T16783.1-2006
600, φ
300, φ
200, φ
100, φ
6, φ
3Viscosity, yield value, fluid loss and 10s, the gel strength of 10min.
3, caving-preventing characteristic evaluation
(1) the mud shale rate of recovery is estimated
Get a certain amount of drilling cuttings, the order number is between the 6-10 order, and 105 ℃ dry down; In digestion tank, add drilling fluid and the dried drilling cuttings of 50.0g among the 350mL embodiment 1-3, aging 120 ℃ * 16h; Solution after aging is crossed 40 mesh sieves, and uses the tap water natural flushing; Drilling cuttings after the flushing is dry under 105 ℃, weighs, and calculates the mud shale rate of recovery.
(2) the mud shale linear expansion is estimated
Get dried landwaste, obtain the landwaste powder after the pulverizing, core block (under the 4MPa pressure, pressing 5min) is estimated in preparation; Open instrument, install the evaluation core block, pour into after the zeroing among the embodiment 1-3; Begin test, write down the polar expansion amount (mm) behind every 0.5h; With the blank solution contrast, calculate polar expansion amount reduced rate.
4, heavy metal evaluation
According to GB 5084.3-1996 " the Hazardous wastes judging standard leaches toxicity and differentiates ", after drilling fluid hydrochloric acid or the molten pre-treatment of nitric acid acid, the lysate for preparing adopts atomic fluorescence instrument, plasma mass spectrograph etc. to measure by corresponding heavy metal element determination method.
5, biodegradable evaluation
With BOD
5(biological oxygen demand (BOD))/COD (chemical oxygen demand) measures earlier the BOD of embodiment product respectively as evaluation index
5And COD, calculate the two ratio then.
6, acute biological toxicity EC
50Estimate
In the centrifuge tube of whizzer, add 20mL embodiment drilling fluid, speed with 1000r/min is carried out centrifugal, get centrifugal after liquid at the middle and upper levels, measure the acute biological toxicity EC of embodiment drilling fluid according to GB/T 15441-1995 " the mensuration photogenic bacterium method of acute toxicity of water quality "
50Value.
Table 1 embodiment marine drilling liquid rheological property comparative evaluation (room temperature)
Table 2 embodiment drilling fluid heat-resisting property comparative evaluation (150 ℃, 16h)
Table 3 embodiment marine drilling liquid caving-preventing characteristic comparative evaluation
Table 4 embodiment
Drilling fluid heavy metal content comparative evaluation (unit: mg/kg)
Table 5 embodiment drilling fluid acute biological toxicity EC
50The comparative evaluation
Table 6 embodiment drilling fluid biodegradable comparative evaluation
Table 7 embodiment drilling fluid reservoir protection performance comparison is estimated (* cuts end face 1cm)
Claims (4)
1. a marine drilling liquid system comprises following components in weight percentage, and the per-cent benchmark is the drilling fluid system gross weight:
0.5%-1.0% environment-friendly type coating agent coater-10,
The weak gel tackifier SDL-30 of 2.0%-3.0%,
1.5%-2.5% environment-friendly type fluid loss agent CMS-L,
Anti-collapse dose of SDE-1 of 2.0%-3.0% environment-friendly type,
Anti-collapse dose of SDA-25 of 2.0%-4.0% high temperature resistance, surplus is a seawater.
2. marine drilling liquid system according to claim 1, wherein, described environment-friendly type coating agent coater-10 is a white powder; Weak gel tackifier SDL-30 is a white powder; Environment-friendly type fluid loss agent CMS-L is a white powder; Anti-collapse dose of SDE-1 of environment-friendly type is orange thick liquid; Anti-collapse dose of SDA-25 of high temperature resistance is pale yellow powder.
3. the preparation method of a marine drilling liquid system according to claim 1 comprises the steps:
(1) get quantitative seawater and join in the jar, turn on agitator stirs;
(2) add the environment-friendly type coating agent coater-10 that accounts for drilling fluid system gross weight 0.5%-1.0%, continue to stir, coating agent is fully dissolved;
(3) adding accounts for the weak gel tackifier SDL-30 of drilling fluid system gross weight 2.0%-3.0%, continues to stir, and allows it fully dissolve;
(4) adding accounts for drilling fluid system gross weight 1.5%-2.5% environment-friendly type fluid loss agent CMS-L, continues to stir to make dissolving evenly;
(5) adding accounts for anti-collapse dose of SDE-1 of drilling fluid system gross weight 2.0%-3.0% environment-friendly type, continues to stir;
(6) adding accounts for anti-collapse dose of SDA-25 of drilling fluid system gross weight 2.0%-4.0% high temperature resistance, continues to stir;
(7) treat the dissolving evenly of above drilling fluid additive after, obtain the finished product environment-friendly type marine drilling liquid system.
4. preparation method according to claim 3, wherein, described environment-friendly type coating agent coater-10 is a white powder; Weak gel tackifier SDL-30 is a white powder; Environment-friendly type fluid loss agent CMS-L is a white powder; Anti-collapse dose of SDE-1 of environment-friendly type is orange thick liquid; Anti-collapse dose of SDA-25 of high temperature resistance is pale yellow powder.
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| CN2010102472579A CN101942294B (en) | 2010-07-27 | 2010-08-06 | Offshore drilling fluid system and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104673256A (en) * | 2013-12-03 | 2015-06-03 | 北京石大博诚科技有限公司 | Weak gel system for drilling fluid |
| CN106833563A (en) * | 2016-12-13 | 2017-06-13 | 中国石油天然气集团公司 | One kind can discharge sea water base drilling fluid and preparation method thereof |
| CN108119074A (en) * | 2018-01-04 | 2018-06-05 | 中国石油大学(华东) | Self feed back two-phase system drilling fluid mixed system and the method for mixing drilling fluid |
| CN114316928A (en) * | 2020-09-28 | 2022-04-12 | 中石化石油工程技术服务有限公司 | Temperature-resistant modified natural polymer drilling fluid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670330A (en) * | 2005-03-11 | 2005-09-21 | 中国石化集团江苏石油勘探局 | Treatment method of drilling fluid in sal prunella mine lateral well drilling process |
| CN101260290A (en) * | 2008-01-10 | 2008-09-10 | 韩一波 | Environmental-friendly type drilling fluid (EFD) |
-
2010
- 2010-08-06 CN CN2010102472579A patent/CN101942294B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670330A (en) * | 2005-03-11 | 2005-09-21 | 中国石化集团江苏石油勘探局 | Treatment method of drilling fluid in sal prunella mine lateral well drilling process |
| CN101260290A (en) * | 2008-01-10 | 2008-09-10 | 韩一波 | Environmental-friendly type drilling fluid (EFD) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104673256A (en) * | 2013-12-03 | 2015-06-03 | 北京石大博诚科技有限公司 | Weak gel system for drilling fluid |
| CN106833563A (en) * | 2016-12-13 | 2017-06-13 | 中国石油天然气集团公司 | One kind can discharge sea water base drilling fluid and preparation method thereof |
| CN106833563B (en) * | 2016-12-13 | 2019-11-08 | 中国石油天然气集团公司 | One kind can discharge sea water base drilling fluid and preparation method thereof |
| CN108119074A (en) * | 2018-01-04 | 2018-06-05 | 中国石油大学(华东) | Self feed back two-phase system drilling fluid mixed system and the method for mixing drilling fluid |
| CN114316928A (en) * | 2020-09-28 | 2022-04-12 | 中石化石油工程技术服务有限公司 | Temperature-resistant modified natural polymer drilling fluid |
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| CN101942294B (en) | 2013-05-01 |
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Inventor after: Jiang Guancheng Inventor after: Gu Hongcheng Inventor after: Zhang Yue Inventor after: Sun Peng Inventor after: Liu Chuanqing Inventor after: Zhou Yanping Inventor after: Wang Fei Inventor after: Xie Shuixiang Inventor after: Chen Mian Inventor after: Shi Jiangang Inventor after: Zhang Jinlong Inventor after: Xu Hongbiao Inventor after: Zeng Liufang Inventor after: Li Zhiyong Inventor after: Mao Hui Inventor before: Jiang Guancheng Inventor before: Xie Shuixiang Inventor before: Chen Mian Inventor before: Shi Jiangang Inventor before: Zhang Jinlong Inventor before: Xu Hongbiao Inventor before: Zeng Liufang Inventor before: Li Zhiyong Inventor before: Mao Hui |
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Free format text: CORRECT: INVENTOR; FROM: JIANG GUANDENG XIE SHUIXIANG CHEN MIAN SHI JIANGANG ZHANG JINLONG XU HONGBIAO ZENG LIUFANG LI ZHIYONG MAO HUI TO: JIANG GUANDENG XIE SHUIXIANG CHEN MIAN SHI JIANGANG ZHANG JINLONG XU HONGBIAO ZENG LIUFANG LI ZHIYONG MAO HUI GU HONGCHENG ZHANG YUE SUN PENG LIU ZHUANQING ZHOU YANPING WANG FEI |
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Effective date of registration: 20110816 Address after: 102200 Beijing city Changping District Road No. 18 Applicant after: China University of Petroleum (Beijing) Co-applicant after: SINOPEC Shengli Offshore Drilling Company Address before: 102200 Beijing city Changping District Road No. 18 Applicant before: China University of Petroleum (Beijing) |
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