CN108359417A - A kind of preparation method of drilling well anti-sloughing agent - Google Patents
A kind of preparation method of drilling well anti-sloughing agent Download PDFInfo
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- 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
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Abstract
The invention discloses a kind of preparation methods of drilling well anti-sloughing agent, belong to technical field of polymer materials.It counts, weighs successively in parts by weight, 35~45 portions of modified starches, 50~60 property-modifying additives, 40~80 parts of paraffin, 10~15 parts of isocyanates, paraffin is added in reactor 22~25 parts of ethyl orthosilicates, heating and melting under conditions of being 45~60 DEG C in temperature, and modified starch is sequentially added into reactor, and isocyanates, ethyl orthosilicate and additive, in temperature be 45~55 DEG C, after rotating speed is stirred 15~35min under conditions of being 260~360r/min, Freezing smashing obtains drilling well anti-sloughing agent.
Description
Technical field
The invention discloses a kind of preparation methods of drilling well anti-sloughing agent, belong to technical field of polymer materials.
Background technology
There are many type of anti-sloughing agent, and inorganic, high molecular polymerization species, alcohol can be divided by mainly carrying out classification by its performance
Class, organic silicon, lignite class, resinae, oils, vinegar class and synthesis base class etc..Drilling fluid influences the impact force size of the borehole wall
To the stability of simultaneously wall, turbulent flow is big to the impact force of the borehole wall, and plug flow or tablet flow pattern are small to the impact force of the borehole wall, these show
In the flow pattern of drilling fluid, i.e., on the ratio of dynamic shear force/yield value to plastic viscosity of drilling fluid.Therefore, all inorganic agents that can improve drilling fluid ratio of dynamic shear force/yield value to plastic viscosity should also be known as anti-
It collapses agent, this kind of anti-sloughing agent refers mainly to positive colloid, modified asbestos and some high molecular polymers.Since anti-sloughing agent type is various, perhaps
More anti-sloughing agents have a variety of mechanism of anti caving.For example, positive colloid has to the compression of electric double layer and changes to drilling fluid flow pattern
Into the mechanism of action of both effect, with three aspect of tessellation, high molecular polymer encapsulation action and low leak-off effect
Mechanism.Therefore, different evaluation methods, the reduction of drilling fluid filtration is applied to make the anti-sloughing agent with different mechanism of anti caving
Hydrone is not easily accessible rock core, to reduce the unstable effect of clay caused by aquation dispersion, most of drops
Fluid loss agents are also referred to as anti-sloughing agent.Anti-sloughing agent enters rock core microcrack, is filled in the hole of rock core microcrack, and in microcrack
It is adsorbed, hydrone is made to be not easily accessible rock core, it is therefore prevented that withered soil expansion because of caused by hydration, it is anti-to play
The effect of collapsing.Gel breaker will be discharged in partial points, and gel breaker size has to be larger than the void size of proppant filling tape.Experiments have shown that
Gel breaker size should be in the same size with proppant or best slightly larger than proppant effect.In two kinds of releasing mechanisms, it is believed that infiltration is released
It is reliable to put mechanism, and gel breaking time is easily controllable, squeezes releasing mechanism and can not achieve sometimes, because at wellbore or low
Pressure is since the flexibility of peel cannot be such that capsule breaker is crushed in formation closure, but the capsule breaker of this mechanism
It can be used for high pressure formation.It generally believes under low pressure now mainly based on infiltration release；Under high pressure based on extruding release, simultaneously
There is also infiltration releases, but the apparent aggravation of infiltration release under high temperature, based on infiltration release.But traditional drilling well anti-sloughing agent is also
Have the shortcomings that permeability resistance is poor, caving-preventing characteristic is insufficient.
Therefore, how to improve that permeability resistance existing for traditional drilling well anti-sloughing agent is poor, disadvantage of caving-preventing characteristic deficiency, to obtain
The raising of more high combination property is that it is promoted and applies, meets industrial production demand urgent problem to be solved.
Invention content
The present invention solves the technical problem of：Poor, the anti-collapse property for permeability resistance existing for traditional drilling well anti-sloughing agent
The insufficient disadvantage of energy, provides a kind of preparation method of drilling well anti-sloughing agent.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）By cationic starch and water in mass ratio 1：4~1：6 mixing, and 0.6~0.8 times of cationic starch quality is added
The initiator of 0.1~0.3 times of acrylamide and starch quality after being stirred, filters, dry, obtains modified starch；
（2）It will（N- amidino groups）Dodecylacrylamide and polyethyleneglycol derivative in mass ratio 2：1~1：1 mixing, and be added
Two cyclopentadienyls of 0.08~0.12 times of the paracide and polyethyleneglycol derivative quality that 0.1~0.2 times of polyethyleneglycol derivative quality
Iron is stirred, and obtains inorganic agent；
（3）It counts, weighs successively in parts by weight：80~100 parts of polyvinyl alcohol, 40~60 parts of gelatin, 250~350 parts of water, 30~
40 parts of glutaraldehyde water solutions and 10~25 parts of hydrochloric acid, polyvinyl alcohol is mixed with water, and heating stirring obtains poly-vinyl alcohol solution, will
Poly-vinyl alcohol solution cools down, and the poly-vinyl alcohol solution after cooling is mixed with gelatin, and sequentially adds hydrochloric acid and glutaraldehyde water
Solution, after being stirred, filtering, stripping and slicing is washed, and vacuum drying obtains gel；
（4）By gel and water in mass ratio 1：5~1：8 mixing, and pH to 2.0~2.6 is adjusted, it is stirred, obtains gel mixing
Object, by gel mixture and pretreatment montmorillonite in mass ratio 3：1~5：1 mixing, and be added gel mixture quality 0.1~
0.2 times of inorganic agent after being stirred, obtains modified gel mixture, adjusts the pH to 5.6~6.6 of modified gel mixture, mistake
Filter, it is dry, obtain modified gel；
（5）By pectin and sodium hydroxide solution in mass ratio 1：3~1：4 mixing, and the water of 20~40 times of pectin quality is added, it stirs
After mixing mixing, pectin solution is obtained, by pectin solution and lecithin in mass ratio 15：3~15：7 mixing, and adjust pH to 6.0~
6.5, the sodium bicarbonate of 0.1~0.3 times of the modified gel and pectin solution quality of 0.4~0.5 times of pectin solution quality is added, stirs
After mixing mixing, sonic oscillation obtains pectin mixture, and pectin mixture is instilled calcium chloride solution with the rate of 1~3mL/min
In, after being crosslinked 15~30min, filtering obtains property-modifying additive；
（6）It counts, weighs successively in parts by weight, 35~45 portions of modified starches, 50~60 property-modifying additives, 40~80 parts of paraffin,
10~15 parts of isocyanates, 22~25 parts of ethyl orthosilicates, heating paraffin are melted, and modified starch is added, isocyanates, just
Silester and additive, after being stirred, Freezing smashing crosses 320~500 mesh sieve, obtains drilling well anti-sloughing agent.
Step（1）The initiator is potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate.
Step（2）The polyethyleneglycol derivative is in polyethylene glycol-p-methyl benzenesulfonic acid ester or polyethylene glycol salicylate
Any one.
Step（4）The preparation method of the pretreatment montmorillonite is by montmorillonite and paraffin in mass ratio 1：3~1：4 is mixed
It closes, and polyacrylic acid zinc is added, after being stirred, Freezing smashing obtains pretreatment montmorillonite.
Step（6）The paraffin is the mineral wax mixture that carbon atom number is 24~36.
Step（6）The isocyanates is isofoer diisocyanate, toluene di-isocyanate(TDI) or dicyclohexyl methyl hydride
Any one in diisocyanate.
The beneficial effects of the invention are as follows：
（1）Modified gel is added when preparing drilling well anti-sloughing agent in the present invention, and first, modified gel can be with the change of external environment pH
And expand or shrink, after being added in product, gel can expand under the stimulation of alkaline environment, to make on the borehole wall
Soil be squeezed and bond, and water is made to cannot be introduced into inside the borehole wall, to make the caving-preventing characteristic of product improve, secondly,
Inorganic agent and montmorillonite containing imitated vesicle structure inside modified gel, in expanded gel during product use with gel
The imitated vesicle structure and montmorillonite in portion expose, and montmorillonite can expand after meeting water, enter the borehole wall to reduce moisture penetration, into
And the caving-preventing characteristic of product is made to further increase, and imitated vesicle structure can form certain vapour lock inside gel, to make production
The anti-permeability performance of product improves, and then the anti-collapse property of product is made to improve；
（2）Isocyanates and ethyl orthosilicate are added when preparing drilling well anti-sloughing agent by the present invention, on the one hand, the isocyanates of addition
Paraffin melting on the outside it can contact and hydrolyze with water afterwards, to generate amine substance and carbon dioxide, carbon dioxide can promote to change
The expansion of imitated vesicle structure in property gel, and then the caving-preventing characteristic of product is made to further increase, and during amine substance is water-soluble, make
Water is conducive to the hydrolysis of ethyl orthosilicate in alkalinity, and on the other hand, the ethyl orthosilicate of addition can form silica, and by
There is certain flocculability in the modified starch of addition, the silica of formation can be combined with tiny mud particles, to well
Gap and hole on wall are filled, to make the caving-preventing characteristic of product further increase.
Specific implementation mode
By cationic starch and water in mass ratio 1：4~1：6 are mixed in beaker, and starch quality is added into beaker
The initiator of 0.6~0.8 times of 0.1~0.3 times of acrylamide and starch quality, in temperature be 55~85 DEG C, rotating speed be 220~
After being stirred 50~80min under conditions of 300r/min, filter, it is dry, obtain modified starch；It will（N- amidino groups）Dodecyl third
Acrylamide and polyethyleneglycol derivative in mass ratio 2：1~1：1 is mixed in flask, and polyethylene glycol is added into flask and derives
The ferrocene of 0.08~0.12 times of the paracide and polyethyleneglycol derivative quality that 0.1~0.2 times of amount of substance, in temperature be 55
~75 DEG C, after rotating speed is stirred 1~2h under conditions of being 200~350r/min, inorganic agent is obtained, is counted in parts by weight, successively
It weighs：80~100 parts of polyvinyl alcohol, 40~60 parts of gelatin, 250~350 parts of water, 30~40 parts of mass fractions are 25~28%
The hydrochloric acid that glutaraldehyde water solution and 10~25 parts of mass fractions are 15~25%, polyvinyl alcohol is mixed with water, in temperature for 88~
98 DEG C, under conditions of rotating speed is 250~300r/min after 55~80min of stirring, poly-vinyl alcohol solution is obtained, by poly-vinyl alcohol solution
50~60 DEG C are cooled to, and the poly-vinyl alcohol solution after cooling is mixed with gelatin, and successively to poly-vinyl alcohol solution and gelatin
Mixture in hydrochloric acid and glutaraldehyde water solution is added, in temperature be 35~48 DEG C, under conditions of rotating speed is 250~300r/min
After being stirred 10~12h, filtering obtains pretreatment gel, will pre-process gel stripping and slicing, deionized water washing by soaking 5~6 is used in combination
It, while a deionized water is changed every 10~12h, by the gel piece after washing after being dried in vacuo 3~5h under room temperature,
Obtain gel；By gel and water in mass ratio 1：5~1：8 mixing are used in combination the hydrochloric acid that mass fraction is 20~30% to adjust gel and water
The pH to 2.0~2.6 of mixture is 30~40 DEG C in temperature, rotating speed is stirred 15 under conditions of being 200~230r/min~
After 25min, gel mixture is obtained, by gel mixture and pretreatment montmorillonite in mass ratio 3：1~5：1 mixing, and to gel
Mixture and the inorganic agent that 0.1~0.2 times of gel mixture quality is added in the mixture of pretreatment montmorillonite, in temperature be 22
~28 DEG C, after rotating speed is stirred 30~70min under conditions of being 200~300r/min, modified gel mixture is obtained, quality is used
After the sodium hydroxide solution that score is 10~12% adjusts the pH to 5.6~6.6 of modified gel mixture, filtering obtains filter cake, will
Under conditions of filter cake is 60~80 DEG C in temperature after dry 1~2h, modified gel is obtained；It is 12~18% by pectin and mass fraction
Sodium hydroxide solution in mass ratio 1：3~1：4 mixing, and be added into the mixture of pectin and sodium hydroxide pectin quality 20~
40 times of water is 30~45 DEG C in temperature, after rotating speed is stirred 30~60min under conditions of being 200~300r/min, obtains fruit
Sol solution, by pectin solution and lecithin in mass ratio 15：3~15：7 mixing, and adjust pectin solution and lecithin mixture
PH to 6.0~6.5, then the modification of 0.4~0.5 times of pectin solution quality is added into the mixture of pectin solution and lecithin
0.1~0.3 sodium bicarbonate of gel and pectin solution quality is 30~35 DEG C in temperature, and rotating speed is the condition of 200~250r/min
Under be stirred 15~25min after, obtain pretreatment pectin mixture, will pre-process pectin mixture in frequency be 45~55kW
Under the conditions of after 5~10min of sonic oscillation, obtain pectin mixture, pectin mixture instilled into quality with the rate of 1~3mL/min
In the calcium chloride solution that score is 20~30%, after being crosslinked 20~30min under room temperature, filtering obtains filter cake to get modification
Additive；It counts, weighs successively in parts by weight, 35~45 portions of modified starches, 50~60 property-modifying additives, 40~80 parts of paraffin,
Paraffin is added in reactor for 10~15 parts of isocyanates, 22~25 parts of ethyl orthosilicates, the condition for being 45~60 DEG C in temperature
Lower heating and melting, and modified starch is sequentially added into reactor, isocyanates, ethyl orthosilicate and additive are in temperature
45~55 DEG C, after rotating speed is stirred 15~35min under conditions of being 260~360r/min, it is anti-collapse to obtain drilling well for Freezing smashing
Agent.The initiator is potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate.The polyethyleneglycol derivative is poly- second
Any one in glycol-p-methyl benzenesulfonic acid ester or polyethylene glycol salicylate.The preparation method of the pretreatment montmorillonite is will
Montmorillonite and paraffin in mass ratio 1：3~1：4 mixing, and polyacrylic acid zinc is added, after being stirred, Freezing smashing, excessively 320~
500 mesh sieve, and obtain pretreatment montmorillonite.The paraffin is the mineral wax mixture that carbon atom number is 24~36.The isocyanates is
Any one in isofoer diisocyanate, toluene di-isocyanate(TDI) or dicyclohexyl methyl hydride diisocyanate.
Example 1
By cationic starch and water in mass ratio 1：6 are mixed in beaker, and the propylene of 0.8 times of starch quality is added into beaker
The initiator of 0.3 times of amide and starch quality is 85 DEG C in temperature, and rotating speed is stirred 80min under conditions of being 300r/min
Afterwards, it filters, it is dry, obtain modified starch；It will（N- amidino groups）Dodecylacrylamide presses quality 1 with polyethyleneglycol derivative：1 is mixed
Together in flask, and the paracide and polyethyleneglycol derivative matter of 0.2 times of polyethyleneglycol derivative quality is added into flask
The ferrocene of 0.12 times of amount after rotating speed is stirred 2h under conditions of being 350r/min, obtains inorganic agent, by weight in 75 DEG C of temperature
Number meter is measured, is weighed successively：100 parts of polyvinyl alcohol, 60 parts of gelatin, 350 parts of water, the glutaraldehyde water that 40 parts of mass fractions are 28%
The hydrochloric acid that solution and 25 parts of mass fractions are 25%, polyvinyl alcohol is mixed with water, in temperature be 98 DEG C, rotating speed 300r/min
Under conditions of after stirring 80min, obtain poly-vinyl alcohol solution, poly-vinyl alcohol solution be cooled to 60 DEG C, and by the poly- second after cooling
Enolate solution is mixed with gelatin, and into the mixture of poly-vinyl alcohol solution and gelatin, addition hydrochloric acid and glutaraldehyde are water-soluble successively
Liquid is 48 DEG C in temperature, and after rotating speed is stirred 12h under conditions of being 300r/min, filtering obtains pretreatment gel, will locate in advance
Gel stripping and slicing is managed, deionized water washing by soaking is used in combination 6 days, while a deionized water is changed every 12h, by the gel piece after washing
After being dried in vacuo 5h under room temperature, gel is obtained；By gel and water in mass ratio 1：8 mixing, it is 30% that mass fraction, which is used in combination,
Hydrochloric acid adjusts the pH to 2.6 of gel and aqueous mixtures, is 40 DEG C in temperature, rotating speed is stirred under conditions of being 230r/min
After 25min, gel mixture is obtained, by gel mixture and pretreatment montmorillonite in mass ratio 5：1 mixing, and to gel mixture
It it is 28 DEG C in temperature, rotating speed is with the inorganic agent that 0.2 times of gel mixture quality is added in the mixture of pretreatment montmorillonite
After being stirred 70min under conditions of 300r/min, modified gel mixture is obtained, the sodium hydroxide for being 12% with mass fraction is molten
After liquid adjusts the pH to 6.6 of modified gel mixture, filtering obtains filter cake, dry 2h under conditions of being 80 DEG C in temperature by filter cake
Afterwards, modified gel is obtained；It is 18% sodium hydroxide solution in mass ratio 1 by pectin and mass fraction：4 mixing, and to pectin and hydrogen-oxygen
Change the water that 40 times of pectin quality is added in the mixture of sodium, is 45 DEG C in temperature, rotating speed stirs mixed under conditions of being 300r/min
After closing 60min, pectin solution is obtained, by pectin solution and lecithin in mass ratio 15：7 mixing, and adjust pectin solution and lecithin
The 6.5 of lipoprotein mixture, then be added into the mixture of pectin solution and lecithin 0.5 times of pectin solution quality modified gel and
0.3 sodium bicarbonate of pectin solution quality is 35 DEG C in temperature, after rotating speed is stirred 25min under conditions of being 250r/min, obtains
Pectin mixture is pre-processed, pretreatment pectin mixture after sonic oscillation 10min, is obtained into pectin under conditions of frequency is 55kW
Mixture is instilled pectin mixture in the calcium chloride solution that mass fraction is 30% with the rate of 3mL/min, in room temperature condition
After lower crosslinking 30min, filtering obtains filter cake to get property-modifying additive；It counts, weighs successively in parts by weight, 45 portions of modified starches,
Paraffin is added in reactor, is in temperature by 60 property-modifying additives, 80 parts of paraffin, 15 parts of isocyanates, 25 parts of ethyl orthosilicates
Heating and melting under conditions of 60 DEG C, and modified starch is sequentially added into reactor, isocyanates, ethyl orthosilicate and addition
Agent is 55 DEG C in temperature, and after rotating speed is stirred 35min under conditions of being 360r/min, Freezing smashing obtains drilling well anti-sloughing agent.
The initiator is potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate.The polyethyleneglycol derivative is poly- second two
Any one in alcohol-p-methyl benzenesulfonic acid ester or polyethylene glycol salicylate.The preparation method of the pretreatment montmorillonite is that will cover
De- stone and paraffin in mass ratio 1：4 mixing, and polyacrylic acid zinc is added, after being stirred, Freezing smashing is crossed 500 mesh sieve, is obtained pre-
Handle montmorillonite.The paraffin is the mineral wax mixture that carbon atom number is 36.The isocyanates is different Fu Er ketone diisocyanate
Any one in ester, toluene di-isocyanate(TDI) or dicyclohexyl methyl hydride diisocyanate.
Example 2
By cationic starch and water in mass ratio 1：6 are mixed in beaker, and the propylene of 0.8 times of starch quality is added into beaker
The initiator of 0.3 times of amide and starch quality is 85 DEG C in temperature, and rotating speed is stirred 80min under conditions of being 300r/min
Afterwards, it filters, it is dry, obtain modified starch；It will（N- amidino groups）Dodecylacrylamide presses quality 1 with polyethyleneglycol derivative：1 is mixed
Together in flask, and the paracide and polyethyleneglycol derivative matter of 0.2 times of polyethyleneglycol derivative quality is added into flask
The ferrocene of 0.12 times of amount after rotating speed is stirred 2h under conditions of being 350r/min, obtains inorganic agent, by weight in 75 DEG C of temperature
Number meter is measured, is weighed successively：100 parts of polyvinyl alcohol, 60 parts of gelatin, 350 parts of water, the glutaraldehyde water that 40 parts of mass fractions are 28%
The hydrochloric acid that solution and 25 parts of mass fractions are 25%, polyvinyl alcohol is mixed with water, in temperature be 98 DEG C, rotating speed 300r/min
Under conditions of after stirring 80min, obtain poly-vinyl alcohol solution, poly-vinyl alcohol solution be cooled to 60 DEG C, and by the poly- second after cooling
Enolate solution is mixed with gelatin, and into the mixture of poly-vinyl alcohol solution and gelatin, addition hydrochloric acid and glutaraldehyde are water-soluble successively
Liquid is 48 DEG C in temperature, and after rotating speed is stirred 12h under conditions of being 300r/min, filtering obtains pretreatment gel, will locate in advance
Gel stripping and slicing is managed, deionized water washing by soaking is used in combination 6 days, while a deionized water is changed every 12h, by the gel piece after washing
After being dried in vacuo 5h under room temperature, gel is obtained；It is 18% sodium hydroxide solution in mass ratio 1 by pectin and mass fraction：4
It mixes, and the water of 40 times of pectin quality is added into the mixture of pectin and sodium hydroxide, be 45 DEG C in temperature, rotating speed is
After being stirred 60min under conditions of 300r/min, pectin solution is obtained, by pectin solution and lecithin in mass ratio 15：7 is mixed
It closes, and adjusts the 6.5 of pectin solution and lecithin mixture, then addition pectin is molten into the mixture of pectin solution and lecithin
0.3 sodium bicarbonate of liquid quality is 35 DEG C in temperature, after rotating speed is stirred 25min under conditions of being 250r/min, must pre-process
Pretreatment pectin mixture after sonic oscillation 10min, is obtained pectin mixing by pectin mixture under conditions of frequency is 55kW
Object instills pectin mixture in the calcium chloride solution that mass fraction is 30% with the rate of 3mL/min, in handing under room temperature
After joining 30min, filtering obtains filter cake to get property-modifying additive；It counts, weighs successively in parts by weight, 45 portions of modified starches, 60 change
Property additive, 80 parts of paraffin, 15 parts of isocyanates, 25 parts of ethyl orthosilicates, by paraffin be added reactor in, in temperature be 60 DEG C
Under conditions of heating and melting, and modified starch is sequentially added into reactor, isocyanates, ethyl orthosilicate and additive, in
Temperature is 55 DEG C, and after rotating speed is stirred 35min under conditions of being 360r/min, Freezing smashing obtains drilling well anti-sloughing agent.It is described to draw
Hair agent is potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate.The polyethyleneglycol derivative is polyethylene glycol-to first
Any one in benzene sulfonate or polyethylene glycol salicylate.The preparation method of the pretreatment montmorillonite is by montmorillonite and stone
Wax in mass ratio 1：4 mixing, and polyacrylic acid zinc is added, after being stirred, Freezing smashing crosses 500 mesh sieve, it is de- must to pre-process illiteracy
Stone.The paraffin is the mineral wax mixture that carbon atom number is 36.The isocyanates is isofoer diisocyanate, toluene two
Any one in isocyanates or dicyclohexyl methyl hydride diisocyanate.
Example 3
By cationic starch and water in mass ratio 1：6 are mixed in beaker, and the propylene of 0.8 times of starch quality is added into beaker
The initiator of 0.3 times of amide and starch quality is 85 DEG C in temperature, and rotating speed is stirred 80min under conditions of being 300r/min
Afterwards, it filters, it is dry, obtain modified starch；It will（N- amidino groups）Dodecylacrylamide presses quality 1 with polyethyleneglycol derivative：1 is mixed
Together in flask, and the paracide and polyethyleneglycol derivative matter of 0.2 times of polyethyleneglycol derivative quality is added into flask
The ferrocene of 0.12 times of amount after rotating speed is stirred 2h under conditions of being 350r/min, obtains inorganic agent, by weight in 75 DEG C of temperature
Number meter is measured, is weighed successively：100 parts of polyvinyl alcohol, 60 parts of gelatin, 350 parts of water, the glutaraldehyde water that 40 parts of mass fractions are 28%
The hydrochloric acid that solution and 25 parts of mass fractions are 25%, polyvinyl alcohol is mixed with water, in temperature be 98 DEG C, rotating speed 300r/min
Under conditions of after stirring 80min, obtain poly-vinyl alcohol solution, poly-vinyl alcohol solution be cooled to 60 DEG C, and by the poly- second after cooling
Enolate solution is mixed with gelatin, and into the mixture of poly-vinyl alcohol solution and gelatin, addition hydrochloric acid and glutaraldehyde are water-soluble successively
Liquid is 48 DEG C in temperature, and after rotating speed is stirred 12h under conditions of being 300r/min, filtering obtains pretreatment gel, will locate in advance
Gel stripping and slicing is managed, deionized water washing by soaking is used in combination 6 days, while a deionized water is changed every 12h, by the gel piece after washing
After being dried in vacuo 5h under room temperature, gel is obtained；By gel and water in mass ratio 1：8 mixing, it is 30% that mass fraction, which is used in combination,
Hydrochloric acid adjusts the pH to 2.6 of gel and aqueous mixtures, is 40 DEG C in temperature, rotating speed is stirred under conditions of being 230r/min
After 25min, gel mixture is obtained, by gel mixture and pretreatment montmorillonite in mass ratio 5：1 mixing, and to gel mixture
It it is 28 DEG C in temperature, rotating speed is with the inorganic agent that 0.2 times of gel mixture quality is added in the mixture of pretreatment montmorillonite
After being stirred 70min under conditions of 300r/min, modified gel mixture is obtained, the sodium hydroxide for being 12% with mass fraction is molten
After liquid adjusts the pH to 6.6 of modified gel mixture, filtering obtains filter cake, dry 2h under conditions of being 80 DEG C in temperature by filter cake
Afterwards, modified gel is obtained；It counts, weighs successively in parts by weight, 45 portions of modified starches, 80 parts of paraffin, 15 parts of isocyanates, 25 parts just
Paraffin is added in reactor silester, heating and melting under conditions of being 60 DEG C in temperature, and is sequentially added into reactor
Modified starch, isocyanates, ethyl orthosilicate and additive are 55 DEG C in temperature, and rotating speed stirs under conditions of being 360r/min
After mixing 35min, Freezing smashing obtains drilling well anti-sloughing agent.The initiator is potassium peroxydisulfate, is appointed in ammonium persulfate or sodium peroxydisulfate
Meaning is a kind of.The polyethyleneglycol derivative is any one in polyethylene glycol-p-methyl benzenesulfonic acid ester or polyethylene glycol salicylate.
The preparation method of the pretreatment montmorillonite is by montmorillonite and paraffin in mass ratio 1：4 mixing, and polyacrylic acid zinc is added, it stirs
After mixing mixing, Freezing smashing crosses 500 mesh sieve, obtains pretreatment montmorillonite.The paraffin is the paraffin mixing that carbon atom number is 36
Object.The isocyanates is isofoer diisocyanate, in toluene di-isocyanate(TDI) or dicyclohexyl methyl hydride diisocyanate
Any one.
Example 4
It will（N- amidino groups）Dodecylacrylamide presses quality 1 with polyethyleneglycol derivative：1 is mixed in flask, and to flask
The ferrocene of middle 0.12 times of the paracide and polyethyleneglycol derivative quality that 0.2 times of polyethyleneglycol derivative quality is added, in
75 DEG C of temperature obtains inorganic agent, counts in parts by weight, weigh successively after rotating speed is stirred 2h under conditions of being 350r/min：
100 parts of polyvinyl alcohol, 60 parts of gelatin, 350 parts of water, the glutaraldehyde water solution and 25 parts of mass fractions that 40 parts of mass fractions are 28%
For 25% hydrochloric acid, polyvinyl alcohol is mixed with water, is 98 DEG C in temperature, rotating speed stirs 80min under conditions of being 300r/min
Afterwards, poly-vinyl alcohol solution is obtained, poly-vinyl alcohol solution is cooled to 60 DEG C, and the poly-vinyl alcohol solution after cooling is mixed with gelatin
It closes, and hydrochloric acid and glutaraldehyde water solution is added into the mixture of poly-vinyl alcohol solution and gelatin successively, be 48 DEG C in temperature, turn
Speed be 300r/min under conditions of be stirred 12h after, filtering, obtain pretreatment gel, will pre-process gel stripping and slicing, and spend from
Sub- water washing by soaking 6 days, while a deionized water is changed every 12h, the gel piece after washing is done in vacuum under room temperature
After dry 5h, gel is obtained；By gel and water in mass ratio 1：8 mixing are used in combination the hydrochloric acid that mass fraction is 30% to adjust gel mixed with water
The pH to 2.6 for closing object is 40 DEG C in temperature, after rotating speed is stirred 25min under conditions of being 230r/min, obtains gel mixing
Object, by gel mixture and pretreatment montmorillonite in mass ratio 5：1 mixing, and to gel mixture and pre-process the mixed of montmorillonite
The inorganic agent that 0.2 times of gel mixture quality is added in object is closed, is 28 DEG C in temperature, rotating speed stirs under conditions of being 300r/min
After mixing 70min, modified gel mixture is obtained, the sodium hydroxide solution for being 12% with mass fraction adjusts modified gel mixture
PH to 6.6 after, filtering obtains filter cake, under conditions of being 80 DEG C in temperature by filter cake after dry 2h, obtains modified gel；By pectin
It is 18% sodium hydroxide solution in mass ratio 1 with mass fraction：4 mixing, and fruit is added into the mixture of pectin and sodium hydroxide
The water that 40 times of colloid amount is 45 DEG C in temperature, after rotating speed is stirred 60min under conditions of being 300r/min, obtains pectin solution,
By pectin solution and lecithin in mass ratio 15：7 mixing, and adjust the 6.5 of pectin solution and lecithin mixture, then to pectin
0.3 bicarbonate of modified gel and pectin solution quality of 0.5 times of pectin solution quality is added in the mixture of solution and lecithin
Sodium is 35 DEG C in temperature, after rotating speed is stirred 25min under conditions of being 250r/min, obtains pretreatment pectin mixture, will be pre-
Handle pectin mixture and after sonic oscillation 10min, obtain pectin mixture under conditions of frequency is 55kW, by pectin mixture with
The rate of 3mL/min instills in the calcium chloride solution that mass fraction is 30%, and after being crosslinked 30min under room temperature, filtering obtains
Filter cake is to get property-modifying additive；It counts, weighs successively in parts by weight, 60 property-modifying additives, 80 parts of paraffin, 15 parts of isocyanates,
25 parts of ethyl orthosilicates, by paraffin be added reactor in, in temperature be 60 DEG C under conditions of heating and melting, and into reactor according to
Secondary addition isocyanates, ethyl orthosilicate and additive are 55 DEG C in temperature, and rotating speed is stirred under conditions of being 360r/min
After 35min, Freezing smashing obtains drilling well anti-sloughing agent.The initiator is potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate
Kind.The polyethyleneglycol derivative is any one in polyethylene glycol-p-methyl benzenesulfonic acid ester or polyethylene glycol salicylate.It is described
The preparation method for pre-processing montmorillonite is by montmorillonite and paraffin in mass ratio 1：4 mixing, and polyacrylic acid zinc is added, stirring is mixed
After conjunction, Freezing smashing crosses 500 mesh sieve, obtains pretreatment montmorillonite.The paraffin is the mineral wax mixture that carbon atom number is 36.Institute
It is isofoer diisocyanate to state isocyanates, any one in toluene di-isocyanate(TDI) or dicyclohexyl methyl hydride diisocyanate
Kind.
Example 5
By cationic starch and water in mass ratio 1：6 are mixed in beaker, and the propylene of 0.8 times of starch quality is added into beaker
The initiator of 0.3 times of amide and starch quality is 85 DEG C in temperature, and rotating speed is stirred 80min under conditions of being 300r/min
Afterwards, it filters, it is dry, obtain modified starch；It will（N- amidino groups）Dodecylacrylamide presses quality 1 with polyethyleneglycol derivative：1 is mixed
Together in flask, and the paracide and polyethyleneglycol derivative matter of 0.2 times of polyethyleneglycol derivative quality is added into flask
The ferrocene of 0.12 times of amount after rotating speed is stirred 2h under conditions of being 350r/min, obtains inorganic agent, by weight in 75 DEG C of temperature
Number meter is measured, is weighed successively：100 parts of polyvinyl alcohol, 60 parts of gelatin, 350 parts of water, the glutaraldehyde water that 40 parts of mass fractions are 28%
The hydrochloric acid that solution and 25 parts of mass fractions are 25%, polyvinyl alcohol is mixed with water, in temperature be 98 DEG C, rotating speed 300r/min
Under conditions of after stirring 80min, obtain poly-vinyl alcohol solution, poly-vinyl alcohol solution be cooled to 60 DEG C, and by the poly- second after cooling
Enolate solution is mixed with gelatin, and into the mixture of poly-vinyl alcohol solution and gelatin, addition hydrochloric acid and glutaraldehyde are water-soluble successively
Liquid is 48 DEG C in temperature, and after rotating speed is stirred 12h under conditions of being 300r/min, filtering obtains pretreatment gel, will locate in advance
Gel stripping and slicing is managed, deionized water washing by soaking is used in combination 6 days, while a deionized water is changed every 12h, by the gel piece after washing
After being dried in vacuo 5h under room temperature, gel is obtained；By gel and water in mass ratio 1：8 mixing, it is 30% that mass fraction, which is used in combination,
Hydrochloric acid adjusts the pH to 2.6 of gel and aqueous mixtures, is 40 DEG C in temperature, rotating speed is stirred under conditions of being 230r/min
After 25min, gel mixture is obtained, by gel mixture and pretreatment montmorillonite in mass ratio 5：1 mixing, and to gel mixture
It it is 28 DEG C in temperature, rotating speed is with the inorganic agent that 0.2 times of gel mixture quality is added in the mixture of pretreatment montmorillonite
After being stirred 70min under conditions of 300r/min, modified gel mixture is obtained, the sodium hydroxide for being 12% with mass fraction is molten
After liquid adjusts the pH to 6.6 of modified gel mixture, filtering obtains filter cake, dry 2h under conditions of being 80 DEG C in temperature by filter cake
Afterwards, modified gel is obtained；It is 18% sodium hydroxide solution in mass ratio 1 by pectin and mass fraction：4 mixing, and to pectin and hydrogen-oxygen
Change the water that 40 times of pectin quality is added in the mixture of sodium, is 45 DEG C in temperature, rotating speed stirs mixed under conditions of being 300r/min
After closing 60min, pectin solution is obtained, by pectin solution and lecithin in mass ratio 15：7 mixing, and adjust pectin solution and lecithin
The 6.5 of lipoprotein mixture, then be added into the mixture of pectin solution and lecithin 0.5 times of pectin solution quality modified gel and
0.3 sodium bicarbonate of pectin solution quality is 35 DEG C in temperature, after rotating speed is stirred 25min under conditions of being 250r/min, obtains
Pectin mixture is pre-processed, pretreatment pectin mixture after sonic oscillation 10min, is obtained into pectin under conditions of frequency is 55kW
Mixture is instilled pectin mixture in the calcium chloride solution that mass fraction is 30% with the rate of 3mL/min, in room temperature condition
After lower crosslinking 30min, filtering obtains filter cake to get property-modifying additive；It counts, weighs successively in parts by weight, 45 portions of modified starches,
Paraffin is added in reactor for 60 property-modifying additives, 80 parts of paraffin, 25 parts of ethyl orthosilicates, under conditions of temperature is 60 DEG C
Heating and melting, and modified starch is sequentially added into reactor, ethyl orthosilicate and additive are 55 DEG C in temperature, and rotating speed is
After being stirred 35min under conditions of 360r/min, Freezing smashing obtains drilling well anti-sloughing agent.The initiator is potassium peroxydisulfate, mistake
Any one in ammonium sulfate or sodium peroxydisulfate.The polyethyleneglycol derivative is polyethylene glycol-p-methyl benzenesulfonic acid ester or poly- second two
Any one in alcohol salicylate.The preparation method of the pretreatment montmorillonite is by montmorillonite and paraffin in mass ratio 1：4 is mixed
It closes, and polyacrylic acid zinc is added, after being stirred, Freezing smashing crosses 500 mesh sieve, obtains pretreatment montmorillonite.The paraffin is carbon
The mineral wax mixture that atomicity is 36.
Example 6
By cationic starch and water in mass ratio 1：6 are mixed in beaker, and the propylene of 0.8 times of starch quality is added into beaker
The initiator of 0.3 times of amide and starch quality is 85 DEG C in temperature, and rotating speed is stirred 80min under conditions of being 300r/min
Afterwards, it filters, it is dry, obtain modified starch；It will（N- amidino groups）Dodecylacrylamide presses quality 1 with polyethyleneglycol derivative：1 is mixed
Together in flask, and the paracide and polyethyleneglycol derivative matter of 0.2 times of polyethyleneglycol derivative quality is added into flask
The ferrocene of 0.12 times of amount after rotating speed is stirred 2h under conditions of being 350r/min, obtains inorganic agent, by weight in 75 DEG C of temperature
Number meter is measured, is weighed successively：100 parts of polyvinyl alcohol, 60 parts of gelatin, 350 parts of water, the glutaraldehyde water that 40 parts of mass fractions are 28%
The hydrochloric acid that solution and 25 parts of mass fractions are 25%, polyvinyl alcohol is mixed with water, in temperature be 98 DEG C, rotating speed 300r/min
Under conditions of after stirring 80min, obtain poly-vinyl alcohol solution, poly-vinyl alcohol solution be cooled to 60 DEG C, and by the poly- second after cooling
Enolate solution is mixed with gelatin, and into the mixture of poly-vinyl alcohol solution and gelatin, addition hydrochloric acid and glutaraldehyde are water-soluble successively
Liquid is 48 DEG C in temperature, and after rotating speed is stirred 12h under conditions of being 300r/min, filtering obtains pretreatment gel, will locate in advance
Gel stripping and slicing is managed, deionized water washing by soaking is used in combination 6 days, while a deionized water is changed every 12h, by the gel piece after washing
After being dried in vacuo 5h under room temperature, gel is obtained；By gel and water in mass ratio 1：8 mixing, it is 30% that mass fraction, which is used in combination,
Hydrochloric acid adjusts the pH to 2.6 of gel and aqueous mixtures, is 40 DEG C in temperature, rotating speed is stirred under conditions of being 230r/min
After 25min, gel mixture is obtained, by gel mixture and pretreatment montmorillonite in mass ratio 5：1 mixing, and to gel mixture
It it is 28 DEG C in temperature, rotating speed is with the inorganic agent that 0.2 times of gel mixture quality is added in the mixture of pretreatment montmorillonite
After being stirred 70min under conditions of 300r/min, modified gel mixture is obtained, the sodium hydroxide for being 12% with mass fraction is molten
After liquid adjusts the pH to 6.6 of modified gel mixture, filtering obtains filter cake, dry 2h under conditions of being 80 DEG C in temperature by filter cake
Afterwards, modified gel is obtained；It is 18% sodium hydroxide solution in mass ratio 1 by pectin and mass fraction：4 mixing, and to pectin and hydrogen-oxygen
Change the water that 40 times of pectin quality is added in the mixture of sodium, is 45 DEG C in temperature, rotating speed stirs mixed under conditions of being 300r/min
After closing 60min, pectin solution is obtained, by pectin solution and lecithin in mass ratio 15：7 mixing, and adjust pectin solution and lecithin
The 6.5 of lipoprotein mixture, then be added into the mixture of pectin solution and lecithin 0.5 times of pectin solution quality modified gel and
0.3 sodium bicarbonate of pectin solution quality is 35 DEG C in temperature, after rotating speed is stirred 25min under conditions of being 250r/min, obtains
Pectin mixture is pre-processed, pretreatment pectin mixture after sonic oscillation 10min, is obtained into pectin under conditions of frequency is 55kW
Mixture is instilled pectin mixture in the calcium chloride solution that mass fraction is 30% with the rate of 3mL/min, in room temperature condition
After lower crosslinking 30min, filtering obtains filter cake to get property-modifying additive；It counts, weighs successively in parts by weight, 45 portions of modified starches,
Paraffin is added in reactor for 60 property-modifying additives, 80 parts of paraffin, 15 parts of isocyanates, adds under conditions of being 60 DEG C in temperature
Heat is melted, and modified starch is sequentially added into reactor, isocyanates and additive, is 55 DEG C in temperature, rotating speed is
After being stirred 35min under conditions of 360r/min, Freezing smashing obtains drilling well anti-sloughing agent.The initiator is potassium peroxydisulfate, mistake
Any one in ammonium sulfate or sodium peroxydisulfate.The polyethyleneglycol derivative is polyethylene glycol-p-methyl benzenesulfonic acid ester or poly- second two
Any one in alcohol salicylate.The preparation method of the pretreatment montmorillonite is by montmorillonite and paraffin in mass ratio 1：4 is mixed
It closes, and polyacrylic acid zinc is added, after being stirred, Freezing smashing crosses 500 mesh sieve, obtains pretreatment montmorillonite.The paraffin is carbon
The mineral wax mixture that atomicity is 36.The isocyanates is isofoer diisocyanate, toluene di-isocyanate(TDI) or two rings
Any one in hexyl methane diisocyanate.
Comparative example：The anti-collapse prescription of drilling equipment Manufacturing Co., Ltd of Taiyuan City production.
The drilling well anti-sloughing agent and comparative example product of example 1 to 6 gained of example are subjected to performance detection, specific detection method is such as
Under：
1. penetration depth：Reagent is added, it is high to measure filter pressing loss, high temperature in the room temperature of different experiments slurry by aging 16h at 120 DEG C
Press state filter loss and high temperature and pressure casting bed penetration depth；
2. core permeability：It is 625.4 × 10-3 μm 2 that water, which surveys permeability, and experimental temperature is 120 DEG C, is forced into 4.2MPa, confining pressure
To 0.7MPa, leak-off 1h；
3. sealing ratiod：It is obtained with comparing core permeability before and after leak-off.
Specific testing result is as shown in table 1：
Table 1：The specific testing result amount of drilling well anti-sloughing agent
| Detection project | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Comparative example |
| Penetration depth（DHTHP） | 4.0 | 4.9 | 5.6 | 6.0 | 9.9 | 10.0 | 10.5 |
| Core permeability（10-3 μm2） | 69.7 | 72.3 | 93.1 | 103.2 | 169.3 | 275.9 | 310.6 |
| Sealing ratiod（%） | 96.98 | 90.23 | 84.12 | 73.60 | 70.01 | 64.53 | 50.19 |
By 1 testing result of table, it is found that drilling well anti-sloughing agent prepared by technical solution of the present invention has, permeability resistance is high, caving-preventing characteristic is strong
The characteristics of, it has broad prospects in the development of high polymer material technology industry.
Claims (6)
1. a kind of preparation method of drilling well anti-sloughing agent, which is characterized in that specifically preparation process is：
（1）By cationic starch and water in mass ratio 1：4~1：6 mixing, and 0.6~0.8 times of cationic starch quality is added
The initiator of 0.1~0.3 times of acrylamide and starch quality after being stirred, filters, dry, obtains modified starch；
（2）It will（N- amidino groups）Dodecylacrylamide and polyethyleneglycol derivative in mass ratio 2：1~1：1 mixing, and be added
Two cyclopentadienyls of 0.08~0.12 times of the paracide and polyethyleneglycol derivative quality that 0.1~0.2 times of polyethyleneglycol derivative quality
Iron is stirred, and obtains inorganic agent；
（3）It counts, weighs successively in parts by weight：80~100 parts of polyvinyl alcohol, 40~60 parts of gelatin, 250~350 parts of water, 30~
40 parts of glutaraldehyde water solutions and 10~25 parts of hydrochloric acid, polyvinyl alcohol is mixed with water, and heating stirring obtains poly-vinyl alcohol solution, will
Poly-vinyl alcohol solution cools down, and the poly-vinyl alcohol solution after cooling is mixed with gelatin, and sequentially adds hydrochloric acid and glutaraldehyde water
Solution, after being stirred, filtering, stripping and slicing is washed, and vacuum drying obtains gel；
（4）By gel and water in mass ratio 1：5~1：8 mixing, and pH to 2.0~2.6 is adjusted, it is stirred, obtains gel mixing
Object, by gel mixture and pretreatment montmorillonite in mass ratio 3：1~5：1 mixing, and be added gel mixture quality 0.1~
0.2 times of inorganic agent after being stirred, obtains modified gel mixture, adjusts the pH to 5.6~6.6 of modified gel mixture, mistake
Filter, it is dry, obtain modified gel；
（5）By pectin and sodium hydroxide solution in mass ratio 1：3~1：4 mixing, and the water of 20~40 times of pectin quality is added, it stirs
After mixing mixing, pectin solution is obtained, by pectin solution and lecithin in mass ratio 15：3~15：7 mixing, and adjust pH to 6.0~
6.5, the sodium bicarbonate of 0.1~0.3 times of the modified gel and pectin solution quality of 0.4~0.5 times of pectin solution quality is added, stirs
After mixing mixing, sonic oscillation obtains pectin mixture, and pectin mixture is instilled calcium chloride solution with the rate of 1~3mL/min
In, after being crosslinked 15~30min, filtering obtains property-modifying additive；
（6）It counts, weighs successively in parts by weight, 35~45 portions of modified starches, 50~60 property-modifying additives, 40~80 parts of paraffin,
10~15 parts of isocyanates, 22~25 parts of ethyl orthosilicates, heating paraffin are melted, and modified starch is added, isocyanates, just
Silester and additive, after being stirred, Freezing smashing crosses 320~500 mesh sieve, obtains drilling well anti-sloughing agent.
2. a kind of preparation method of drilling well anti-sloughing agent according to claim 1, it is characterised in that：Step（1）The initiation
Agent is potassium peroxydisulfate, any one in ammonium persulfate or sodium peroxydisulfate.
3. a kind of preparation method of drilling well anti-sloughing agent according to claim 1, it is characterised in that：Step（2）The poly- second
Diol, derivatives are any one in polyethylene glycol-p-methyl benzenesulfonic acid ester or polyethylene glycol salicylate.
4. a kind of preparation method of drilling well anti-sloughing agent according to claim 1, it is characterised in that：Step（4）The pre- place
The preparation method for managing montmorillonite is by montmorillonite and paraffin in mass ratio 1：3~1：4 mixing, and polyacrylic acid zinc is added, it stirs
After mixing, Freezing smashing obtains pretreatment montmorillonite.
5. a kind of preparation method of drilling well anti-sloughing agent according to claim 1, it is characterised in that：Step（6）The paraffin
The mineral wax mixture for being 24~36 for carbon atom number.
6. a kind of preparation method of drilling well anti-sloughing agent according to claim 1, it is characterised in that：Step（6）The isocyanide
Acid esters is isofoer diisocyanate, any one in toluene di-isocyanate(TDI) or dicyclohexyl methyl hydride diisocyanate.
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| CN113372889A (en) * | 2021-06-23 | 2021-09-10 | 成都西油华巍科技有限公司 | High water loss plugging agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676141A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Deformable plugging and anti-sloughing agent for drilling fluid |
| CN103725266A (en) * | 2013-12-23 | 2014-04-16 | 河南海洋化工有限公司 | Anti-collapse inhibitor for drilling fluid and preparation method of anti-collapse inhibitor |
| CN104194741A (en) * | 2014-08-05 | 2014-12-10 | 新乡市富邦科技有限公司 | High-temperature-resistant salt-resistant anti-collapse filtrate reducer for drilling fluid and preparation method of high-temperature-resistant salt-resistant anti-collapse filtrate reducer |
-
2018
- 2018-04-20 CN CN201810361215.4A patent/CN108359417A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102676141A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Deformable plugging and anti-sloughing agent for drilling fluid |
| CN103725266A (en) * | 2013-12-23 | 2014-04-16 | 河南海洋化工有限公司 | Anti-collapse inhibitor for drilling fluid and preparation method of anti-collapse inhibitor |
| CN104194741A (en) * | 2014-08-05 | 2014-12-10 | 新乡市富邦科技有限公司 | High-temperature-resistant salt-resistant anti-collapse filtrate reducer for drilling fluid and preparation method of high-temperature-resistant salt-resistant anti-collapse filtrate reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113372889A (en) * | 2021-06-23 | 2021-09-10 | 成都西油华巍科技有限公司 | High water loss plugging agent |
| CN113372889B (en) * | 2021-06-23 | 2022-11-08 | 成都西油华巍科技有限公司 | High water loss plugging agent |
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