CN1329124A - water-based mud extreme pressure lubricant - Google Patents

water-based mud extreme pressure lubricant Download PDF

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Publication number
CN1329124A
CN1329124A CN 01115906 CN01115906A CN1329124A CN 1329124 A CN1329124 A CN 1329124A CN 01115906 CN01115906 CN 01115906 CN 01115906 A CN01115906 A CN 01115906A CN 1329124 A CN1329124 A CN 1329124A
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Prior art keywords
extreme pressure
fatty acid
acid
oil
pressure lubricant
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CN 01115906
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CN1165595C (en
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李银素
张菊芬
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ZHONGHAI OIL FIELD SERVICE CO Ltd
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ZHONGHAI PETROLEUM TECHNOLOGY
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Abstract

The invention relates to a mud extreme pressure lubricant used when a drilling tool operates under extremely high pressure, which comprises 5-20% of sulfurized fatty acid or sulfurized oil ester, 0-40% of fatty acid, 10-50% of fatty acid ester, 0.5-3% of surfactant and 30-60% of white oil with the flash point higher than 80 ℃.

Description

Water base mud extreme pressure lubricant
The present invention relates to a kind of MUD LUBRICANTS that is used for drilling operation, relate in particular to a kind of mud extreme pressure lubricant that under extremely high pressure, uses in the operation when drilling tool.
In drilling process,, improve drilling speed in order to reduce moment of torsion, prolong drilling life of bit, reduce the number of times that makes a trip, reduce the mud drum of drill bit and drill collar, reduce pump pressure, usually use MUD LUBRICANTS, make mud form oil-in-water emulsion mud, reduce oil water interfacial tension, and make the metallic surface of drilling tool have good glossy wetting, reduce the mud drum of drill bit and drill collar, reduce the possibility that adheres to bit freezing.
Under certain the pressure of the drill and drilling speed condition; use common MUD LUBRICANTS; can reduce the rotary torque of drilling tool; prolong the work-ing life of drill bit; but bear at drilling tool under the condition of very high loads; even best regular mud lubricant can not satisfy the lubricating requirement of bit bearing, often wearing and tearing in advance of drill bit at this moment, thereby have to pull out of hole in the past at the complete blunt of drill teeth; in case the bearing extreme wear may make gear wheel drop in the well; in order to prevent this situation, must add special additive, make drilling tool under the extremely high pressure condition; can form firm chemical films in the metal surface of drill stem of friction; surface of drill stem is played a protective role, prolong bit life, reduce the number of times that makes a trip; reduce the drilling rod moment of torsion; improve drilling speed, alleviate wearing and tearing, improve drilling efficiency drilling rod and drill bit.
The objective of the invention is to defective at described regular mud lubricant; a kind of mud extreme pressure lubricant is provided; this lubricant is particularly useful for water-based mud; bear at drilling tool under the condition of very high loads and use; can form firm chemical films in the metal surface of drill stem of friction; reach the protection surface of drill stem, prolong the purpose of bit life.
In the mud extreme pressure lubricant of the present invention, selected sulfide aliphatic acid or sulfuration grease as raw material.That is, this mud extreme pressure lubricant is higher than 80 ℃ white oil by a kind of sulfide aliphatic acid or vulcanized oil, a kind of lipid acid, a kind of ester of lipid acid, a kind of tensio-active agent and flash-point and forms.
Mud extreme pressure lubricant provided by the invention is a kind of mud extreme pressure lubricant that is used for water-base drilling fluid, its composition comprises: the sulfide aliphatic acid of 5-20% or sulfuration grease, the lipid acid of 0-40%, the fatty acid ester of 10-50%, the tensio-active agent of 0.5-3%, the flash-point of 30-60% are higher than 80 ℃ white oil, and each component sum is 100 weight %.
Mud extreme pressure lubricant provided by the invention is a kind of special additive, and it can form firm chemical films in the metallic surface of bearing friction, and this chemical films can alleviate the friction and wear between the contact surface.Under the same conditions, extreme-pressure additive of the present invention is added in the common lubricant, the metallic surface that is rubbed can become smooth, it is glossy wet to reduce the possibility of pressure differential sticking that drilling tool is become, especially in irregular hole diameter and inclined shaft and orientation well, can alleviate wearing and tearing to drilling rod and drill collar.
Sulfide aliphatic acid of the present invention is selected from the sulfide of vegetables oil mixed fatty acid, the sulfide of single fat acid or the sulfide of animal oil fatty acid, wherein, vegetables oil mixed fatty acid such as Castor Oil Fatty Acid, soy(a)-bean oil fatty acid, cottonseed oil fatty acid, linseed oil fatty acid etc., single fat is sour as linolic acid, oleic acid etc., animal oil fatty acid such as lard lipid acid, tallow fatty acid, the acid of sheep grease fat etc.; Vulcanized oil is selected from the sulfide of animal oil or vegetables oil, wherein, and vegetables oil such as Viscotrol C, soya-bean oil, Oleum Gossypii semen, vegetable seed wet goods, animal oil such as lard, butter, sheep wet goods.
The used lipid acid of the present invention can be the vegetables oil mixed fatty acid of speaking of above.And the lower vegetables oil mixed fatty acid of the also preferred described zero pour of lipid acid described in the fatty acid ester component, as soy(a)-bean oil fatty acid, Castor Oil Fatty Acid, rapeseed oil fatty acid, cottonseed oil fatty acid.Fatty acid ester then is preferably fatty acid methyl ester or fatty-acid ethyl ester.
The action principle one of mud extreme pressure lubricant provided by the invention is to make mud form oil-in-water emulsion mud, reduces oil water interfacial tension; The 2nd, form firm chemical films in the metallic surface.The tensio-active agent that the present invention uses is the additive with emulsification function, preferably can be anion surfactant or nonionogenic tenside, more preferably, anion surfactant is selected sulfonated petro-leum or petroleum benzene sulfonate for use, promptly, the carbochain of this sulfonate or benzene sulfonate is the petroleum cracking product, is preferably wherein C 10-C 15The sulfonate or the benzene sulfonate of alkane; The tensio-active agent of non-ionic type is preferably the Soxylat A 25-7 of alkylphenol, and alkyl wherein can be C 6-C 12Alkyl, and polyoxyethylated molecular weight is preferably at about 200-600.
The defoamer that also can comprise appropriate amount in the extreme pressure lubricant of the present invention, usage quantity are about 0.5-2%, and this defoamer is preferably silicone oil or aluminum stearate, or the close product of effect.
Every test-results shows, extreme pressure lubricant of the present invention is except that the effect with regular mud lubricant, can also bear under the condition of very high loads at drilling tool, surface of drill stem in friction forms firm chemical films, thereby effectively reduces the drilling tool moment of torsion, improves drilling speed, prolong bit life, minimizing can be widely used in the drilling operation of oil-gas field development the wearing and tearing of drilling tool, is particluarly suitable for using in the drilling operation of inclined shaft and orientation well.
Further describe the present invention below by embodiment, but the present invention is not constituted any qualification.
Embodiment 1
According to following prescription each material is mixed with extreme pressure lubricant of the present invention.
Sulfuration soy(a)-bean oil fatty acid 12.5%
Ricinolic acid methyl esters 40%
White oil (flash-point is higher than 80 ℃) 45.5%
Polyoxyethylene nonylphenol ether (the molecule 1 .0% of Soxylat A 25-7
Amount is at 200-600)
Silicone oil 1.0%
Embodiment 2
According to following prescription each material is mixed with extreme pressure lubricant of the present invention.
Sulfuration soya-bean oil 12.5%
Linseed oil fatty acid 20%
Castor Oil Fatty Acid ethyl ester 21%
White oil (flash-point is higher than 80 ℃) 45%
Polyoxyethylene nonylphenol ether (the molecule 1 .5% of Soxylat A 25-7
Amount is at 200-600)
Embodiment 3
According to following prescription each material is mixed with extreme pressure lubricant of the present invention.
Sulfuration soya-bean oil 11.5%
Castor Oil Fatty Acid 20%
Castor Oil Fatty Acid ethyl ester 21%
White oil (flash-point is higher than 80 ℃) 45%
(moieties is C to petroleum sodium sulfonate 10-C 15Oil 1.5%
Lysate)
Aluminum foil stearate 1%
The experimental example part
The preparation of mud
According to following prescription, earlier will Soil is made into 8% fresh water Soil paste, aquation was diluted to 3% with seawater after 16 hours, added other treatment agent then, and airtight aquation 16 hours can make mud (seawater Soil mud).Surplus is a seawater in the prescription.
Figure A0111590600064
Soil 3%
NaOH (sodium hydroxide) 0.2%
Na 2CO 3(yellow soda ash) 0.2%
N-PAN (polypropylene cyanogen ammonium) 0.5%
DFD (treated starch) 1%
PAC-HV (Polyanionic Cellulose one is high sticking) 0.3%
PF-TEX (sulfonated gilsonite) 2%
PF—PLUS(80A51) 0.3%
KCl (Repone K) 5%
Seawater to 100%
Experimental example 1
Preparation 6%
Figure A0111590600071
Soil paste is pressed the extreme pressure lubricant that different ratios adds embodiment 1 preparation, stirs, and measures the extreme pressure lubricant of embodiment 1 preparation at seawater with E-P extreme boundary lubrication combined instrument
Figure A0111590600072
Moment of torsion in the soil matrix slurry, calculated torque is fallen, and wherein the base slurry is Soil adds seawater and is made into 6% after the pulping in fresh water Soil paste, the result is as shown in table 1.The torque drop calculation formula is:
Torque drop=(add in base slurry torque-Ji slurry lubricant after torque)/base slurry torque * 100%
Table 1 extreme pressure lubricant is at seawater Torque drop project base slurry in the soil paste (6% sea base slurry+1% extreme pressure base slurry+2% extreme pressure base slurry+3% extreme pressure
Water
Figure A0111590600076
Soil paste) lubricants lubricant moment of torsion reading 54 5.0 3.1 2.3 torque drops (%) 91.7 94 95.7 lubricating coefficients 0.54 0.050 0.031 0.023 experimental example 2
With the mud high-speed stirring of aforesaid method (experimental example) preparation 5 minutes, press the extreme pressure lubricant that different ratios adds embodiment 1 preparation, stir, measure the moment of torsion that mud adds the extreme pressure lubricant front and back with E-P extreme boundary lubrication combined instrument, formula calculating torque with reference to experimental example 2 falls, and the result is as shown in table 2.
The torque drop project of table 2 extreme pressure lubricant in sea-water mud do not add lubricant and adds lubricant 1% and add lubricant 2% and add lubricant 3% moment of torsion reading 13.5 9.6 8.7 7.0 torque drops (%) 0 28 36 48 lubricating coefficients 0.135 0.096 0.087 0.072
Experimental example 3
The fresh water of preparation 6% The soil matrix slurry is pressed the extreme pressure lubricant that different ratios adds embodiment 1 preparation, stirs, and measures fresh water with E-P extreme boundary lubrication combined instrument
Figure A0111590600082
Add the torque before and after the extreme pressure lubricant of embodiment 2 preparations in the soil matrix slurry, calculate torque with reference to the formula of experimental example 2 and fall, the result is as shown in table 3.
Table 3 extreme pressure lubricant is at fresh water Torque drop project base slurry in the soil paste (6% fresh water base slurry+1% extreme pressure base slurry+2% extreme pressure base slurry+3% extreme pressure
Figure A0111590600084
Soil paste) lubricants lubricant moment of torsion reading 52 4.2 3.0 1.9 torque drops (%) 92 94 96 lubricating coefficients 0.52 0.042 0.030 0.019
Experimental example 4
Measure 6% seawater with E-P extreme boundary lubrication combined instrument Add the moment of torsion before and after the extreme pressure lubricant of embodiment 2 preparations in the soil matrix slurry, calculate torque with reference to the formula of experimental example 2 and fall, wherein the base slurry is
Figure A0111590600086
Soil adds seawater and is made into 6% after the pulping in fresh water Soil paste, the result is as shown in table 4.Table 4 extreme pressure lubricant is at seawater Torque drop in the soil paste
Base slurry (6% seawater base slurry+1% extreme pressure base slurry+2% extreme pressure base slurry+3% utmost point project Soil paste) lubricants pressure lubricating agent moment of torsion reading 54 5.2 3.2 2.1 torque drops (%) 90 94 96 lubricating coefficients 0.54 0.052 0.032 0.021
Experimental example 5
The lubricity experiment of lubricant in mud
The mud high-speed stirring that will prepare by preceding method 5 minutes, press the extreme pressure lubricant that different ratios adds embodiment 2 preparations, stir, measure the moment of torsion that adds the extreme pressure lubricant front and back in the mud with E-P extreme boundary lubrication combined instrument, formula calculating torque with experimental example 2 falls, and the test result of this normal temperature lubricity is as shown in table 5.Again the mud of mud and adding lubricant is poured in the digestion tank, under 120 ℃ in the roller process furnace heat rolled 16 hours, moment of torsion after this extreme pressure lubricant heat in mud is rolled 120 ℃ * 16h is measured with E-P extreme boundary lubrication combined instrument in cooling back, calculates torque equally and falls, and the result is as shown in table 6.
The torque drop project of table 5 extreme pressure lubricant in mud do not add lubricant and adds lubricant 1% and add lubricant 2% and add lubricant 3% moment of torsion reading 13.5 9.8 8.6 7.2 torque drops (%) 0 27 36 46 lubricating coefficients 0.135 0.098 0.086 0.072
Table 6 extreme-pressure lubricant heat in mud torque drop project behind the 120 ℃ * 16h of rolling does not add lubricant and adds lubricant 1% and add lubricant 2% and add lubricant 3% moment of torsion reading 12.6 6.8 5.6 4.2 torque drops (%) 0 46 55 66 lubricating coefficients 0.126 0.068 0.056 0.042
Experimental example 6
The mensuration of extreme pressure value
To get two parts of high-speed stirring 5 minutes according to the mud that preceding method prepares, the extreme pressure lubricant of embodiment 2 preparations of a copy of it adding 2%, stir, be 1000 rev/mins at rotating speed, to apply moment of torsion be that 100inch-pounds, time are under the condition of 5min, with the extreme pressure value that E-P extreme boundary lubrication combined instrument is measured the extreme pressure value of this mud and added the mud of 2% extreme pressure lubricant, the result is as shown in table 8.
Table 8 mud and be added with the extreme pressure value of the mud of 2% extreme pressure lubricant
Figure A0111590600101
From table 1-8 experimental data as can be seen, this extreme pressure lubricant is at seawater Soil paste, fresh water All have fabulous oilness in soil paste and the mud, the mud that adds 2% extreme pressure lubricant has higher extreme pressure value.This product can be widely used in the drilling operation of oil-gas field development, and is especially more effective in the drilling operation of inclined shaft and orientation well.

Claims (10)

1, a kind of extreme pressure lubricant that is used for water-base drilling fluid, its composition comprises: the tensio-active agent of the lipid acid of the sulfide aliphatic acid of 5-20% or vulcanized oil, 0-40%, the fatty acid ester of 10-50%, 0.5-3%, the flash-point of 30-60% are higher than 80 ℃ white oil, and each component sum is 100 weight %.
2, the described extreme pressure lubricant of claim 1, wherein, described sulfide aliphatic acid is selected from the sulfide of vegetables oil mixed fatty acid, the sulfide of single fat acid or the sulfide of animal oil fatty acid; Vulcanized oil is selected from the vulcanized oil of animal oil or vegetables oil.
3, the described extreme pressure lubricant of claim 1, wherein, described lipid acid is selected from vegetable fatty acids.
4, the described extreme pressure lubricant of claim 1, wherein, described fatty acid ester is fatty acid methyl ester or fatty-acid ethyl ester, lipid acid wherein is the vegetables oil mixed fatty acid.
5, the described extreme pressure lubricant of claim 1, wherein, tensio-active agent is selected from anionic or the nonionic surface active agent with emulsification function.
6, the described extreme pressure lubricant of claim 1 is wherein gone back the defoamer that selectivity includes 0.5-2%.
7, the described extreme pressure lubricant of claim 2, wherein, the vegetables oil mixed fatty acid is selected from Castor Oil Fatty Acid, linseed oil fatty acid, soy(a)-bean oil fatty acid or cottonseed oil fatty acid; Animal oil fatty acid is selected from lard lipid acid, tallow fatty acid or the acid of sheep grease fat; Single fat acid is selected from linolic acid, oleic acid.
8, the described extreme pressure lubricant of claim 5, wherein, anion surfactant is C 10-C 15The alkylsulfonate or the alkylbenzene sulfonate of petroleum cracking thing; Nonionogenic tenside is the Soxylat A 25-7 of alkylphenol.
9, the described extreme pressure lubricant of claim 8, wherein, the alkyl in the Soxylat A 25-7 molecule of alkylphenol is C 8-C 14Alkyl, and polyoxyethylated molecular weight is at 200-600.
10, the described extreme pressure lubricant of claim 6, wherein, defoamer is silicone oil or aluminum stearate.
CNB011159065A 2001-04-30 2001-04-30 water-based mud extreme pressure lubricant Expired - Fee Related CN1165595C (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101735778A (en) * 2009-12-03 2010-06-16 中国海洋石油总公司 Highly-efficient lubricant for drilling fluid
CN101886015A (en) * 2010-06-29 2010-11-17 吴莉 Lubrication anti-wear agent
CN101892036A (en) * 2010-08-09 2010-11-24 中国石油集团川庆钻探工程有限公司长庆钻井总公司 Process for preparing drilling fluid for preventing polycrystalline diamond compact (PDC) bit balling
CN102344783A (en) * 2011-07-22 2012-02-08 石家庄华莱鼎盛科技有限公司 High-efficient antisticking lubricant for drilling fluid
CN102676127A (en) * 2012-05-02 2012-09-19 陆明富 Method for making low-fluorescence lubricant for drilling fluid
CN102851006A (en) * 2012-09-30 2013-01-02 中国石油集团西部钻探工程有限公司 Bio-oil lubricant for drilling wells and preparation method of bio-oil lubricant
CN102952528A (en) * 2011-08-31 2013-03-06 中国石油化工股份有限公司 Degradable drilling fluid lubricant and preparation method thereof
CN103013464A (en) * 2012-12-27 2013-04-03 河北华运鸿业化工有限公司 Low fluorescent lubricating agent for drilling fluid and method for preparing low fluorescent lubricating agent
CN103555302A (en) * 2013-10-31 2014-02-05 中船勘察设计研究院有限公司 drilling wall-protecting slurry prepared from seawater
CN103571441A (en) * 2013-10-11 2014-02-12 四川康克石油科技有限公司 Wear-resistant drag reducer for drilling fluid and preparation method thereof
CN103965841A (en) * 2014-05-01 2014-08-06 克拉玛依市奥泽工贸有限责任公司 Microemulsion white oil for drilling fluid as well as preparation and application methods thereof
CN104830292A (en) * 2015-05-06 2015-08-12 天津中油渤星工程科技有限公司 Low toxicity and low fluorescence lubricant for drilling fluid and preparation method thereof
CN107502317A (en) * 2017-09-07 2017-12-22 杨锋 A kind of drilling fluid extreme-pressure lubricant and preparation method thereof
CN107556988A (en) * 2017-08-22 2018-01-09 中国石油天然气集团公司 A kind of high temperature resistance environmentally-frielubricant lubricant for drilling fluid and preparation method thereof
CN108276973A (en) * 2018-01-30 2018-07-13 四川泓华油气田工程科技有限公司 Drilling fluid environment protective lubricant and preparation method thereof
CN109135688A (en) * 2018-08-08 2019-01-04 天津渤海中联石油科技有限公司 Drilling fluid fluid lubricant and preparation method thereof
CN109439294A (en) * 2018-11-14 2019-03-08 山东得顺源石油科技有限公司 A kind of high density drilling fluid heat and salinity tolerance extreme-pressure lubricant and preparation method thereof
CN109666461A (en) * 2017-10-13 2019-04-23 中国石油化工股份有限公司 A kind of drilling fluid drag reducer

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101735778A (en) * 2009-12-03 2010-06-16 中国海洋石油总公司 Highly-efficient lubricant for drilling fluid
CN101886015A (en) * 2010-06-29 2010-11-17 吴莉 Lubrication anti-wear agent
CN101892036B (en) * 2010-08-09 2012-12-12 中国石油集团川庆钻探工程有限公司长庆钻井总公司 Process for preparing drilling fluid for preventing polycrystalline diamond compact (PDC) bit balling
CN101892036A (en) * 2010-08-09 2010-11-24 中国石油集团川庆钻探工程有限公司长庆钻井总公司 Process for preparing drilling fluid for preventing polycrystalline diamond compact (PDC) bit balling
CN102344783A (en) * 2011-07-22 2012-02-08 石家庄华莱鼎盛科技有限公司 High-efficient antisticking lubricant for drilling fluid
CN102344783B (en) * 2011-07-22 2012-08-22 石家庄华莱鼎盛科技有限公司 High-efficient antisticking lubricant for drilling fluid
CN102952528A (en) * 2011-08-31 2013-03-06 中国石油化工股份有限公司 Degradable drilling fluid lubricant and preparation method thereof
CN102676127A (en) * 2012-05-02 2012-09-19 陆明富 Method for making low-fluorescence lubricant for drilling fluid
CN102851006A (en) * 2012-09-30 2013-01-02 中国石油集团西部钻探工程有限公司 Bio-oil lubricant for drilling wells and preparation method of bio-oil lubricant
CN103013464A (en) * 2012-12-27 2013-04-03 河北华运鸿业化工有限公司 Low fluorescent lubricating agent for drilling fluid and method for preparing low fluorescent lubricating agent
CN103013464B (en) * 2012-12-27 2015-07-01 河北华运鸿业化工有限公司 Low fluorescent lubricating agent for drilling fluid and method for preparing low fluorescent lubricating agent
CN103571441A (en) * 2013-10-11 2014-02-12 四川康克石油科技有限公司 Wear-resistant drag reducer for drilling fluid and preparation method thereof
CN103571441B (en) * 2013-10-11 2017-03-15 四川康克石油科技有限公司 A kind of drilling fluid Wear-resistant drag reducer and preparation method thereof
CN103555302A (en) * 2013-10-31 2014-02-05 中船勘察设计研究院有限公司 drilling wall-protecting slurry prepared from seawater
CN103965841A (en) * 2014-05-01 2014-08-06 克拉玛依市奥泽工贸有限责任公司 Microemulsion white oil for drilling fluid as well as preparation and application methods thereof
CN104830292A (en) * 2015-05-06 2015-08-12 天津中油渤星工程科技有限公司 Low toxicity and low fluorescence lubricant for drilling fluid and preparation method thereof
CN104830292B (en) * 2015-05-06 2017-12-05 天津中油渤星工程科技有限公司 A kind of drilling fluid less toxic low fluorescence lubricant and preparation method thereof
CN107556988A (en) * 2017-08-22 2018-01-09 中国石油天然气集团公司 A kind of high temperature resistance environmentally-frielubricant lubricant for drilling fluid and preparation method thereof
CN107502317A (en) * 2017-09-07 2017-12-22 杨锋 A kind of drilling fluid extreme-pressure lubricant and preparation method thereof
CN109666461A (en) * 2017-10-13 2019-04-23 中国石油化工股份有限公司 A kind of drilling fluid drag reducer
CN108276973A (en) * 2018-01-30 2018-07-13 四川泓华油气田工程科技有限公司 Drilling fluid environment protective lubricant and preparation method thereof
CN109135688A (en) * 2018-08-08 2019-01-04 天津渤海中联石油科技有限公司 Drilling fluid fluid lubricant and preparation method thereof
CN109439294A (en) * 2018-11-14 2019-03-08 山东得顺源石油科技有限公司 A kind of high density drilling fluid heat and salinity tolerance extreme-pressure lubricant and preparation method thereof
CN109439294B (en) * 2018-11-14 2020-09-22 山东得顺源石油科技有限公司 Temperature-resistant and salt-resistant extreme pressure lubricant for high-density drilling fluid and preparation method thereof

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Denomination of invention: Water base mud extreme pressure lubricant

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