CN103897673B - Fall extreme pressure frictional resistance and mud cake adhere to the preparation method of the lubricant for drilling fluid of frictional resistance - Google Patents
Fall extreme pressure frictional resistance and mud cake adhere to the preparation method of the lubricant for drilling fluid of frictional resistance Download PDFInfo
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- CN103897673B CN103897673B CN201410130861.1A CN201410130861A CN103897673B CN 103897673 B CN103897673 B CN 103897673B CN 201410130861 A CN201410130861 A CN 201410130861A CN 103897673 B CN103897673 B CN 103897673B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/28—Friction or drag reducing additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/34—Lubricant additives
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Abstract
The invention discloses a kind of lubricant for drilling fluid, the mud cake of 0.1% 15% in parts by weight the oil adhering to lubrication improving agent, the triethanolamine of 0 4%, the EP agent with surface activity of 0.01% 30% and surplus is prepared from.All show good greasy property in terms of this lubricant mud cake in drilling fluid adheres to lubrication and in terms of extreme boundary lubrication, and do not cause drilling fluid to foam.This lubricant can be widely applied to the drilling fluid field of petroleum gas and geological prospecting etc..
Description
Technical field
The present invention relates to petroleum gas and geological exploration field, particularly relate in a kind of drillng operation
There is the preparation method of the lubricant for drilling fluid of fall extreme pressure frictional resistance and fall mud cake adhesion frictional resistance dual-use function.
Background technology
In drillng operation, the energy lost because of friction account for various motor device produce gross energy 70% with
On, the biggest energy loss be enough to govern the engineering success or failure of directional well, horizontal well and extended reach well.Cause
This, reduce frictional dissipation significant to drilling engineering.The method reducing frictional dissipation has multiple, adopts
It is one of technical way by the method adding lubricant in drilling fluid.
Reduce the mechanism of frictional resistance between drilling tool and the borehole wall according to lubricant for drilling fluid, can be classified as two big classes:
One class is to reduce the extreme-pressure lubricant of friction between drilling tool and sleeve pipe two metal, it be typically containing S, P, N,
The material of the elements such as B, O, Cl, under the conditions of extreme pressure, lubricant can be sent out in the metal surface of drilling tool and sleeve pipe
Biochemical reaction, forms one layer of extreme pressure fine and close, anti-and has the chemical films reducing frictional resistance character, and then reducing
Friction between drilling tool and sleeve pipe；Another kind of is to reduce friction between drilling tool and the bore hole borehole wall, prevent pressure reduction
The mud cake of bit freezing adheres to lubricant, and it is by improvement of mud cake, improves the cunning property of mud cake, and then fall
Friction between low drilling tool and the borehole wall.
Research to lubricant for drilling fluid the most both at home and abroad is concentrated mainly on the extreme boundary lubrication performance side of lubricant
Face, extreme boundary lubrication performance has been made very outstanding, but the research in terms of mud cake adheres to lubrication is relatively
Few.Current extreme-pressure lubricant predominantly with the addition of the oil emulsion series products of EP agent；And drilling fluid mud
Cake adheres to lubricant and is mainly asphalt modified product and oil emulsion series products.The lubricant of both the above type produces
Product all only reach requirement in a kind of lubricating function, there are no fall extreme pressure frictional resistance and fall mud cake adheres to frictional resistance two side
The lubricant product that face is the most up to standard.
Summary of the invention
It is an object of the invention to provide a kind of drilling well with fall extreme pressure frictional resistance and mud cake adhesion frictional resistance function
The preparation method of liquid lubricant, meets the current drilling engineering needs to high-performance lubrication product.
To this end, technical scheme is as follows:
The preparation method of a kind of lubricant for drilling fluid dropping extreme pressure frictional resistance and mud cake adhesion frictional resistance, including following step
Rapid:
(1) the monosubstituted phosphoric acid of Organic Alcohol or the preparation of its salt:
Organic Alcohol and polyphosphoric acids are mixed in reaction vessel, heating, and stir to reacting complete, obtain
The monosubstituted phosphoric acid of extreme boundary lubrication additive Organic Alcohol；
Or by the prepared monosubstituted phosphoric acid of Organic Alcohol and corresponding alkali metal hydroxide, alkali metal oxide,
Ammonia or amine reaction obtain the monosubstituted phosphate of Organic Alcohol.Can be containing a certain amount of former in the product so obtained
Material alcohol and phosphoric acid by-product, but reaction is made without purification processes, can directly as EP agent and
Emulsifying agent uses.
(2) preparation of lubricant for drilling fluid:
By mass fraction be 0.1～15% mud cake lubrication improving agent, mass fraction is 0～the triethanolamine of 4%,
Mass fraction is 0.5～the oil of the monosubstituted phosphoric acid of Organic Alcohol of 30% or the monosubstituted phosphate of Organic Alcohol and surplus adds
Entering in reaction vessel, be heated to 20～150 DEG C, stirring is completely dissolved to solid, is cooled to room temperature afterwards,
Obtain lubricant for drilling fluid.
Wherein, during described Organic Alcohol is alkylol, alkyl alcohol ethoxylates or alkylphenol polyoxyethylene
A kind of；
Described mud cake lubrication improving agent is to have the one in the compound of following structure, or two of which or two
With the mixture of any ratio more than kind:
(RCO2)x_y(OH)yM
Wherein: R is the saturated of C8-C20 or undersaturated straight or branched alkyl；
M is+divalent ,+trivalent or the metal ion of+4 valencys;
X, y are integer, 2≤x≤4,0≤y≤2, and y ＜ x；
Described M be described M be Mg2+、Ca2+、Sr2+、Ba2+、Cu2+、Zn2+、Co2+、Mn2+、
Ni2+、Pb2+、Cr3+、Al3+、Fe3+、Zr4+Or Ti4+。
Described polyphosphoric acids is 4 aggressiveness of phosphoric acid.4, preparation method according to claim 1, it is special
Levy and be: heating, stirring in described step 1) use one-step method or two step method, and described one-step method is: add
Heat, to 80-150 DEG C, stirs 0.5～3 hour；Described two step method is: be first heated to 50-80 DEG C, stirring 0.5～
1 hour, then heat to 90-150 DEG C, stir 0.2～2 hour.
Preferably, the mass fraction of described mud cake lubrication improving agent is 1～8%.
Preferably, the mass fraction of described EP agent is 3～15%.
Preferably, the mass fraction of described triethanolamine is 0～1%.
Described oil be mineral oil, vegetable oil, used oil, through the waste oil of plant oil modified oil or recovery.
Described through plant oil modified oil be vulcanized vegetable oil or vegetable oil and methanol, ethanol, propanol, different
Modified product obtained by propanol, n-butyl alcohol, triethanolamine or Polyethylene Glycol generation ester exchange reaction, or
It is vegetable oil and polyethylene polyamine or the amidated products of diethanolamine generation aminolysis reaction generation.
Described polyethylene polyamine is diethylenetriamine, triethylene tetramine or TEPA.
Described mineral oil is white oil, kerosene, diesel oil or crude oil.
Described vegetable oil is Oleum Arachidis hypogaeae semen, soybean oil, Semen Maydis oil, Oleum Brassicae campestris, Oleum Ricini, Petiolus Trachycarpi oil, Fructus Canarii albi
Oil or Oleum Gossypii semen.
There is the compound that functional mass main in the EP agent of surface activity is following structure:
R:C6-C20Saturated straight chain or branched alkyl or C6-C20Unsaturated straight or branched alkyl;
x:0or1;
n:0-10;
M:H+, alkali metal ion, NH4 +, protonation trialkylamine or quaternary ammonium ion.
In structural formula, R is saturated alkyl or the unsaturated alkyl of C6-C20 of C6-C20.
X is 0 or 1, represents whether have phenyl ring.When x is 0, represent in structure without phenyl ring；When x is 1
Time, represent in structure have phenyl ring.
N is the integer of 0-10, represents the polyoxyethylated degree of polymerization.
M is H+, alkali metal ion, NH4 +, protonation trialkylamine or quaternary ammonium ion.
The lubricant for drilling fluid prepared by the method for the present invention, it is provided simultaneously with dropping extreme pressure frictional resistance and fall mud cake glues
Performance of both attached frictional resistance, improves the overall drag reduction capability of lubricant for drilling fluid, decreases drillng operation
The consumption of middle lubricant, to improving drilling speed, reduction drilling cost, minimizing drilling tool loss, guaranteeing downhole safety
Significant.Lubricant for drilling fluid prepared by the method has extraordinary extreme boundary lubrication ability and mud cake
Adhering to lubricating ability, this lubricant will not cause drilling fluid to foam simultaneously.
Detailed description of the invention
The invention solves the problems that a kind of lubricant is provided simultaneously with extreme boundary lubrication and mud cake adheres to asking of two functions of lubrication
Topic.Solving an idea of this problem is will to have the additive of extreme boundary lubrication performance and can improve mud cake and glue
The additive of attached greasy property is placed in identical carrier, allows and has no adverse effects between them, mutually promotes, this
Sample just can reduce the consumption of carrier, strengthens the overall greasy property of lubricant.
It was found that, after with the addition of aluminium stearate in oil emulsion, aluminium stearate is at each little emulsified oil droplet
In be that aluminium stearate is oleophylic simultaneously by the form of micelle or presented in being woven into network, and due to
The aluminium ion of its high price can be securely joined with electronegative clay.So, this lubricant when flowing through mud cake,
Aluminium stearate will be intercepted without entering stratum, simultaneously aluminium stearate and mud cake by the mud cake of semipermeable membrane character
In conjunction with, participate in the formation of mud cake, this improves the oleophilic properties of mud cake, effectively oil can be locked in mud
On cake, enhance the adhesion lubricating ability of mud cake.
The research of extreme boundary lubrication additive is found, extreme boundary lubrication additive mostly be containing S, P, N, B, O,
The material of the elements such as Cl, these elements are generally connected to be had on the Long carbon chain of oleophilic properties, so, mostly
Number EP agent all has certain surface activity, can be as surfactant.
Analyze according to above, choose the mud cake before EP agent replaces it as surfactant rightly
Adhere to the surfactant in lubricant, be achieved that and do not affecting lubricant stable dispersion in drilling fluid
Impart mud cake simultaneously and adhere to the extreme boundary lubrication performance of lubricant, and then two kinds of additives are organically placed in base
On plinth this carrier of oil, it is the formation of that there is fall extreme pressure frictional resistance and the dual lubrication merit of mud cake adhesion frictional resistance simultaneously
Can lubricant for drilling fluid.
It has been investigated that, the monosubstituted phosphoric acid of Organic Alcohol or the monosubstituted phosphate of Organic Alcohol prepared by laboratory both may be used
The surface activity of the mud cake adhesion lubricant of early stage invention can be replaced again as emulsifying agent as EP agent
Agent, the lubricant obtained embodies superior extreme boundary lubrication performance and mud cake adheres to greasy property, and does not draws
Play drilling fluid foaming.
According to the studies above, obtain technical scheme.
Below in conjunction with specific embodiment the present invention dropped extreme pressure frictional resistance and mud cake adheres to the difunctional drilling well of frictional resistance
The preparation method of liquid lubricant is described in detail.
In following example, embodiment 1～6 is the extreme pressure monosubstituted phosphoric acid of emulsifying agent Organic Alcohol or the preparation of its salt；
Embodiment 7～17 is the preparation of lubricant for drilling fluid；Polyphosphoric acids used in practical example is four poly-phosphorus
Acid.
Embodiment 1
By NPE (hereinafter referred to as OP-4) that the degree of polymerization is 4 with polyphosphoric acids in molar ratio
4:1 is placed in reaction vessel, stirs 30min at 70 DEG C, then heats to 100 DEG C of stirring 30min, colder
But to room temperature, the EP agent with surface activity is prepared.In described EP agent, each component molar ratio
For: OP-4-PO3H2: OP-4:H3PO4=3:1:1, OP-4-PO3H2For C9H19C6H4O(C2H4O)4PO3H2。
Embodiment 2
By NPE (hereinafter referred to as OP-7) that the degree of polymerization is 7 with polyphosphoric acids in molar ratio
4:1 is placed in reaction vessel, stirs 60min at 50 DEG C, then heats to 150 DEG C, stirs 20min, then
It is cooled to room temperature, obtains the EP agent with surface activity.Each component molar in described EP agent
Ratio is: OP-7-PO3H2:OP-7:H3PO4=3:1:1,OP-7-PO3H2For C9H19C6H4O(C2H4O)7PO3H2。
Embodiment 3
The NPE (OP-10) that the degree of polymerization is 10 is placed in polyphosphoric acids 4:1 in molar ratio
In reaction vessel, stir 1h at 50 DEG C, then heat to 90 DEG C of stirring 2h, be cooled to room temperature and had
There is the EP agent of surface activity.In this EP agent, the mol ratio of each component is: OP-10-PO3H2:
OP-10:H3PO4=3:1:1,OP-10-PO3H2For C9H19C6H4O(C2H4O)10PO3H2。
Embodiment 4
By n-dodecanol (n-C12H25OH) with polyphosphoric acids during 4:1 is placed in reaction vessel in molar ratio,
150 DEG C of stirring 30min, are then cooled to room temperature to have the EP agent of surface activity.This extreme pressure adds
In agent, the molar ratio of each composition is: n-C12H25OPO3H2:n-C12H25OH:H3PO4=3:1:1。
Embodiment 5
OP-7 and polyphosphoric acids during 3:1 is placed in reaction vessel in molar ratio, are stirred 4h, reaction at 80 DEG C
Complete, it is cooled to room temperature, must have the EP agent of surface activity.This EP agent is OP-7-PO3H2,
It is mixed with a small amount of H3PO4, mol ratio is OP-7-PO3H2:H3PO4=3:1。
Embodiment 6
The product that embodiment 1 obtains is placed in reaction vessel, and reactor is placed in 25 DEG C of water-baths,
Being dividedly in some parts NaOH under conditions of stirring, calculate by molal quantity, the dosage of NaOH is many in embodiment 1
6 times of polyphosphoric acid dosage, react 1h at 25 DEG C, then vacuum drying are except water, finally gives OP-4-PO3Na2,
It is mixed with a certain amount of sodium phosphate, raw material OP-4 simultaneously.The molar ratio of component is OP-4-PO3Na2: OP-4:
Sodium phosphate=3:1:1.
Embodiment 7
According to following formula, each material that will be calculated in mass percent mixes, and 120 DEG C of heated and stirred 20
Min, prepares the lubricant for drilling fluid of the present invention.
Embodiment 8
The each material mixing being just calculated in mass percent according to following formula, and 150 DEG C of heated and stirred 15
Min, prepares the lubricant for drilling fluid of the present invention.
Embodiment 9
According to following formula, each material is mixed (being calculated in mass percent calculation), and 80 DEG C of heated and stirred 1h,
Prepare the lubricant for drilling fluid of the present invention.
Embodiment 10
According to following formula, each material is mixed (being calculated in mass percent calculation), and 20 DEG C of heated and stirred 4h,
Prepare the lubricant for drilling fluid of the present invention.
Embodiment 11
According to following formula, each material is mixed (being calculated in mass percent calculation), and 100 DEG C of heated and stirred 30
Min, prepares the lubricant for drilling fluid of the present invention.
Embodiment 12
According to following formula, each material is mixed (being calculated in mass percent calculation), and 100 DEG C of heated and stirred 30
Min, prepares the lubricant for drilling fluid of the present invention.
Embodiment 13
According to following formula, each material is mixed (being calculated in mass percent calculation), and 130 DEG C of heated and stirred 15
Min, prepares the lubricant for drilling fluid of the present invention.
Embodiment 14
According to following formula, each material is mixed (being calculated in mass percent calculation), and 100 DEG C of heated and stirred 30
Min, prepares the lubricant for drilling fluid of the present invention.
White oil 88%
Aluminium stearate 3%
The extreme pressure emulsifying agent 9% that embodiment 1 prepares.
Embodiment 15
According to following formula, each material is mixed (being calculated in mass percent calculation), and 120 DEG C of heated and stirred 20
Min, prepares the lubricant for drilling fluid of the present invention.
Embodiment 16
According to following formula, each material is mixed (being calculated in mass percent calculation), and 100 DEG C of heated and stirred 30
Min, prepares the lubricant for drilling fluid of the present invention.
Embodiment 17
According to following formula, each material is mixed (being calculated in mass percent calculation), and 130 DEG C of heated and stirred 15
Min, prepares the lubricant for drilling fluid of the present invention.
Mud cake adhesion lubrication method of testing:
Use NF-2 type mud cake to adhere to lubricating coefficient analyzer test mud cake and adhere to frictional resistance.Brief operation step is such as
Under: first, leak-off 30min under 3.5MPa pressure reduction, forming a filter at the bottom of the drilling fluid cup of test instrunment
Cake；Then, adhesion dish is sticked on mud cake under the pressure reduction of 3.5MPa；Finally, 5 time points are chosen
Test moment of torsion with torque plate, thus evaluate the frictional resistance size between adhesion dish and mud cake, the time point of test
It is respectively 5min, 10min, 15min, 30min, 45min, and with reading during 45min is finally
Final moment of torsion reading.
Frictional resistance reduction rate computing formula is as follows:
Mud cake adheres to frictional resistance reduction rate=(TBase–TProfit)/TBase*100%
In formula:
TBaseDo not add the drilling fluid moment of torsion reading of lubricant；
TProfitAdd the drilling fluid moment of torsion reading of lubricant.
Extreme boundary lubrication method of testing:
Use fann212 type extreme boundary lubrication instrument test extreme pressure frictional resistance.Brief operation step is as follows: first, with pure
Machine is verified by water purification, and when being not pressurized, moment of torsion reading is 0, and rotating speed is 60 turns/min；It is pressurized to 150
During inch-pounds, rotating speed is 60 turns/min.Then, operate in the case of pressurization 150inch-pounds
5min, the moment of torsion reading of test pure water, it is ensured that the moment of torsion reading of pure water is between 28-42.By pure
Water changes the serosity that need to test into, and operate in the case of adding 150inch-pounds 5min, reads the slurry of test
The moment of torsion reading of liquid.
Extreme pressure frictional resistance reduction rate=(MBase/MWater–MProfit/M* Water)/(MBase/MWater)*100%；
In formula:
MBaseDo not add the extreme pressure moment of torsion reading of the drilling fluid of lubricant；
MProfitWith the addition of the extreme pressure moment of torsion reading of the drilling fluid of lubricant；
MWaterThe extreme pressure moment of torsion of the pure water recorded before survey does not adds the drilling fluid of lubricant is read
Number；
M*WaterThe extreme pressure moment of torsion reading of the pure water recorded before surveying the drilling fluid of addition lubricant.
The lubricant for drilling fluid that embodiment 7-17 prepares is added by a certain percentage in starching to base, as stated above
Carrying out mud cake and adhere to lubrication test and extreme boundary lubrication is tested, record the results are shown in Table 1:
The greasy property test result of table 1 lubricant for drilling fluid
Base therein starches the water by 5wt% Xia Zi street swelling sodium soil, 0.25wt% natrium carbonicum calcinatum and surplus in room
Warm water 24h prepares.
According to data above, the lubricant that various embodiments of the present invention prepare all shows preferable mud cake and glues
Attached greasy property and extreme boundary lubrication performance.
Claims (10)
1. dropping a preparation method for the lubricant for drilling fluid of extreme pressure frictional resistance and mud cake adhesion frictional resistance, its feature exists
In comprising the following steps:
(1) the monosubstituted phosphoric acid of Organic Alcohol or the preparation of its salt:
Organic Alcohol and polyphosphoric acids are mixed in reaction vessel, heating, and stir to reacting complete, obtain
The monosubstituted phosphoric acid of extreme boundary lubrication additive Organic Alcohol；
By the prepared monosubstituted phosphoric acid of Organic Alcohol and corresponding alkali metal hydroxide, alkali metal oxide, ammonia
Gas or amine reaction obtain the monosubstituted phosphate of Organic Alcohol；
(2) preparation of lubricant for drilling fluid:
By mass fraction be 0.1～15% mud cake lubrication improving agent, mass fraction is 0～the triethanolamine of 4%,
Mass fraction is 0.5～the oil of the monosubstituted phosphoric acid of Organic Alcohol of 30% or the monosubstituted phosphate of Organic Alcohol and surplus adds
Entering in reaction vessel, be heated to 20～150 DEG C, stirring is completely dissolved to solid, is cooled to room temperature afterwards,
Obtain lubricant for drilling fluid；
Wherein, during described Organic Alcohol is alkylol, alkyl alcohol ethoxylates or alkylphenol polyoxyethylene
A kind of；
Described mud cake lubrication improving agent is to have the one in the compound of following structure, or two of which or two
With the mixture of any ratio more than kind:
(RCO2)x-y(OH)yM
Wherein: R is the saturated of C8-C20 or undersaturated straight or branched alkyl；
M is+divalent ,+trivalent or the metal ion of+4 valencys；
X, y are integer, 2≤x≤4,0≤y≤2, and y ＜ x.
Preparation method the most according to claim 1, it is characterised in that: described M is Mg2+、Ca2+、
Sr2+、Ba2+、Cu2+、Zn2+、Co2+、Mn2+、Ni2+、Pb2+、Cr3+、Al3+、Fe3+、Zr4+Or Ti4+。
Preparation method the most according to claim 1, it is characterised in that: described polyphosphoric acids is four poly-phosphorus
Acid.
Preparation method the most according to claim 1, it is characterised in that: described step 1) in heating,
Stirring uses one-step method or two step method, and described one-step method is: be heated to 80-150 DEG C, stirs 0.5～3 hour；
Described two step method is: be first heated to 50-80 DEG C, stirs 0.5～1 hour, then heats to 90-150 DEG C, stir
Mix 0.2～2 hour.
Preparation method the most according to claim 1, it is characterised in that: described mud cake lubrication improving agent
Mass fraction is 1～8%.
Preparation method the most according to claim 1, it is characterised in that: the quality of described EP agent
Mark is 3～15%.
Preparation method the most according to claim 1, it is characterised in that: the quality of described triethanolamine is divided
Number is 0～1%.
Preparation method the most according to claim 1, it is characterised in that: described oil is mineral oil, plant
Oil, used oil, through the waste oil of plant oil modified oil or recovery,
Described through plant oil modified oil be vulcanized vegetable oil or vegetable oil and methanol, ethanol, propanol, different
Modified product obtained by propanol, n-butyl alcohol, triethanolamine or Polyethylene Glycol generation ester exchange reaction, or
It is vegetable oil and polyethylene polyamine or the amidated products of diethanolamine generation aminolysis reaction generation；
Described polyethylene polyamine is diethylenetriamine, triethylene tetramine or TEPA.
Preparation method the most according to claim 8, it is characterised in that: described mineral oil is white oil, coal
Oil, diesel oil or crude oil.
Preparation method the most according to claim 8, it is characterised in that: described vegetable oil be Oleum Arachidis hypogaeae semen,
Soybean oil, Semen Maydis oil, Oleum Brassicae campestris, Oleum Ricini, Petiolus Trachycarpi oil, olive oil or Oleum Gossypii semen.
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| CN104194740B (en) * | 2014-08-01 | 2017-01-25 | 中国石油集团渤海钻探工程有限公司 | Oil-based drilling fluid lubricant and preparation method thereof |
| CN105086954B (en) * | 2015-07-28 | 2018-05-04 | 中国石油集团渤海钻探工程有限公司 | Lubricant for drilling fluids and preparation method thereof |
| CN109148954B (en) * | 2018-09-05 | 2020-09-01 | 上海力信能源科技有限责任公司 | Electrolyte additive for high-compaction lithium iron phosphate battery and electrolyte containing additive |
| CN109796944A (en) * | 2019-02-28 | 2019-05-24 | 青岛海石元创石油技术有限公司 | A kind of drilling fluid environment-friendly type oil sac lubricant and preparation method thereof |
| CN109825265B (en) * | 2019-03-18 | 2020-12-29 | 四川正蓉实业有限公司 | Liquid non-fluorescent lubricant for well drilling |
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| JP5258170B2 (en) * | 2006-05-02 | 2013-08-07 | 東レ・ダウコーニング株式会社 | Lubricating grease composition |
| CN101235338B (en) * | 2008-01-30 | 2011-05-11 | 益田润石（北京）化工有限公司 | Open-type gear grease composition |
| CN101434886B (en) * | 2008-12-17 | 2012-08-29 | 武汉同盛精细化工技术开发有限责任公司 | Rolling oil composition for 12-roller reversing mill |
| CN101735778A (en) * | 2009-12-03 | 2010-06-16 | 中国海洋石油总公司 | Highly-efficient lubricant for drilling fluid |
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Effective date of registration: 20210804 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |