CN107973827A - A kind of aminoalkyl glucosides graft copolymer and preparation method thereof and drilling fluid - Google Patents
A kind of aminoalkyl glucosides graft copolymer and preparation method thereof and drilling fluid Download PDFInfo
- Publication number
- CN107973827A CN107973827A CN201610941215.2A CN201610941215A CN107973827A CN 107973827 A CN107973827 A CN 107973827A CN 201610941215 A CN201610941215 A CN 201610941215A CN 107973827 A CN107973827 A CN 107973827A
- Authority
- CN
- China
- Prior art keywords
- graft copolymer
- glucosides
- present
- aminoalkyl
- drilling fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H15/00—Compounds containing hydrocarbon or substituted hydrocarbon radicals directly attached to hetero atoms of saccharide radicals
- C07H15/02—Acyclic radicals, not substituted by cyclic structures
- C07H15/04—Acyclic radicals, not substituted by cyclic structures attached to an oxygen atom of the saccharide radical
- C07H15/08—Polyoxyalkylene derivatives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H1/00—Processes for the preparation of sugar derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/06—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polyethers, polyoxymethylenes or polyacetals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2618—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen
- C08G65/2621—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups
- C08G65/2624—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing nitrogen containing amine groups containing aliphatic amine groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
-
- 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
-
- 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
- C09K8/04—Aqueous well-drilling compositions
- C09K8/06—Clay-free compositions
- C09K8/12—Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The present invention provides a kind of preparation method of aminoalkyl glucosides graft copolymer, comprise the following steps：(1) alkyl glycosides, epoxides, chloride and acidic catalyst are reacted, obtains the first intermediate product；(2) the first intermediate product and fatty amine are reacted, obtains the second intermediate product；(3) under the action of initiator, the second intermediate product, acrylamide and 2 acrylamide, 2 methyl propane sulfonic acid is reacted, obtain aminoalkyl glucosides graft copolymer.The present invention provides the aminoalkyl glucosides graft copolymer that specific structure has been prepared in method, this aminoalkyl glucosides graft copolymer with specific structure is with preferable rejection, greasy property, filtrate loss controllability, anti-saturation salt and complex salt pollutant performance.In addition, this aminoalkyl glucosides graft copolymer no biotoxicity.Present invention also offers a kind of aminoalkyl glucosides graft copolymer and drilling fluid.
Description
Technical field
The present invention relates to drilling technology field, more particularly to a kind of aminoalkyl glucosides graft copolymer and preparation method thereof
And drilling fluid.
Background technology
In recent years, with oil-drilling field middle-deep well, ultradeep well, high angle hole, horizontal well it is increasing, deep-well,
The high deep layer strong retraction mud shale of formation temperature in ultradeep well, the borehole wall containing caving grounds such as mud stone in drilling process
Destabilization problems not can solve.Borehole well instability can be solved the problems, such as to a certain extent using oil base drilling fluid, still
Oil base drilling fluid, which exists, prepares the problem of of high cost, environmental-protecting performance is poor.Core of the generally use amido potent inhibitor as drilling fluid
Heart host agent, with the use of other inorganic agents, is configured to the preferable water-base drilling fluid of rejection, this water-base drilling fluid has oil
The performance of base drilling fluid, but amido inhibitor and the compatibility of other inorganic agents are poor, make water-base drilling fluid in stability
The control of aspect limits its promotion and application there are larger difficulty.
In terms of amido potent inhibitor modification, the 1990s, foreign countries proposed a kind of alkyl glycosides oil base drilling well
Liquid, this species oil base drilling fluid have preferable environmental-protecting performance, but due to the rejection and high temperature resistance of alkyl glycosides
Can be poor, need dosage of the addition more than 35% just to give full play to its rejection in drilling fluid, add drilling fluid
Production cost.
The defects of in order to overcome alkyl glycosides rejection insufficient, can to alkyl glycosides carry out structure on modification or
Optimization, by introducing different functional groups, improves the performance of alkyl glycosides.At present, in the market is badly in need of a kind of with preferable
Rejection, greasy property, filtrate loss controllability, the alkyl glycosides derivative of anti-saturation salt and complex salt pollutant performance are applied to
In drilling fluid.
The content of the invention
In view of this, it is an object of the invention to provide a kind of aminoalkyl glucosides graft copolymer and preparation method thereof and
Drilling fluid, aminoalkyl glucosides graft copolymer provided by the invention have preferable rejection, greasy property, filtration reduction
Energy, salt resistance and complex salt pollutant performance.
The present invention provides a kind of preparation method of aminoalkyl glucosides graft copolymer, comprise the following steps：
(1) alkyl glycosides, epoxides, chloride and acidic catalyst are reacted, obtains the first intermediate product；
(2) the first intermediate product and fatty amine are reacted, obtains the second intermediate product；
(3) under the action of initiator, by the second intermediate product, acrylamide and 2- acrylamide-2-methyl propane sulfonics
Reaction, obtains aminoalkyl glucosides graft copolymer；
The alkyl glycosides has structure shown in Formulas I：
In Formulas I, R1The alkyl for being 1~10 for carbon number；M is 1~3；
The epoxides has the structure shown in Formula II：
In Formula II, R2The alkyl for being 1~5 for carbon number；
The fatty amine has the structure shown in formula III：
In formula III, o is 0~4；
The acrylamide has the structure shown in formula IV：
The 2- acrylamide-2-methyl propane sulfonics have the structure shown in Formula V：
Preferably, the R1The alkyl for being 1~6 for carbon number.
Preferably, the R2The alkyl for being 1~5 for carbon number.
Preferably, the chloride is thionyl chloride, chlorosulfuric acid, phosphorus trichloride or phosphorus pentachloride.
Preferably, the acidic catalyst for hydrofluoric acid, tartaric acid, oxalic acid, p-methyl benzenesulfonic acid, dodecyl benzene sulfonic acid or
Sulfamic acid.
Preferably, the reaction temperature in the step (1) is 40~80 DEG C.
Preferably, the reaction temperature in the step (2) is 180~240 DEG C.
Preferably, the reaction temperature in the step (3) is 40~60 DEG C.
Preferably, the initiator is that ammonium sulfate, potassium permanganate, ammonium ceric nitrate, tert-butyl hydroperoxide or azo two are different
Butyronitrile.
Method provided by the invention by carrying out alkyl glycosides epoxide modification, fatty amine modification, acryloyl successively
Amine and 2- acrylamide-2-methyl propane sulfonics are modified, and obtain the aminoalkyl glucosides graft copolymer of specific structure, this tool
The aminoalkyl glucosides graft copolymer for having specific structure has preferable rejection, greasy property, filtrate loss controllability, anti-full
With salt and complex salt pollutant performance.In addition, this aminoalkyl glucosides graft copolymer no biotoxicity.It is in addition, of the invention
This aminoalkyl glucosides graft copolymer provided preparation method reaction condition is gentle, operating procedure is simple, sintetics
Environmentally protective, the grafting rate of product is high.
The present invention provides a kind of aminoalkyl glucosides graft copolymer, including the structure shown in formula A：
In formula A, n is that 1~3, o is that 0~4, m is that 1~3, p is that 2~20, q is 2~15；
R1The alkyl for being 1~10 for carbon number；
R2The alkyl for being 1~5 for carbon number.
The present invention provides a kind of aminoalkyl glucosides graft copolymer with specific structure.This aminoalkyl glucosides
Graft copolymer has preferable rejection, greasy property, filtrate loss controllability, anti-saturation salt and complex salt pollutant performance.
In addition, this aminoalkyl glucosides graft copolymer no biotoxicity.This aminoalkyl glucosides grafting provided by the invention is altogether
Polymers can be applied in drilling fluid.
The present invention provides a kind of drilling fluid, including the aminoalkyl sugar that method described in above-mentioned technical proposal is prepared
Aminoalkyl glucosides graft copolymer described in glycosides graft copolymer or above-mentioned technical proposal.
Drilling fluid provided by the invention includes the aminoalkyl glucosides graft copolymer described in above-mentioned technical proposal, this amine
Base alkyl glycosides graft copolymer has preferable rejection, greasy property, filtrate loss controllability, anti-saturation salt and complex salt
Pollutant performance, property of drilling fluid can be improved by being added in drilling fluid, suitable for the caving control to drilling fluid, lubrication it is anti-sticking,
Closure blocks water, the wellbore construction in the pollution of salt resistance and complex salt and environmental requirement area higher.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the infrared spectrogram for the aminomethyl glucosides graft copolymer that the embodiment of the present invention 1 is prepared；
Fig. 2 is the infrared spectrogram for the amido ethyl glucoside graft copolymer that the embodiment of the present invention 2 is prepared；
Fig. 3 is the infrared spectrogram for the aminocarbonyl propyl glucosides graft copolymer that the embodiment of the present invention 3 is prepared；
Fig. 4 is the infrared spectrogram for the amido butyl glycoside graft copolymer that the embodiment of the present invention 4 is prepared；
Fig. 5 is the infrared spectrogram for the amido amyl group glucosides graft copolymer that the embodiment of the present invention 5 is prepared；
Fig. 6 is the infrared spectrogram for the aminohexyl glucosides graft copolymer that the embodiment of the present invention 6 is prepared.
Embodiment
The technical solution in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this area is common
Technical staff it is improved or retouching all other example, belong to the scope of protection of the invention.
The present invention provides a kind of preparation method of aminoalkyl glucosides graft copolymer, comprise the following steps：
(1) alkyl glycosides, epoxides, chloride and acidic catalyst are reacted, obtains the first intermediate product；
(2) the first intermediate product and fatty amine are reacted, obtains the second intermediate product；
(3) under the action of initiator, by the second intermediate product, acrylamide and 2- acrylamide-2-methyl propane sulfonics
Reaction, obtains aminoalkyl glucosides graft copolymer.
Step (1) of the present invention carries out alkyl glycosides under the action of acidic catalyst and chloride, using epoxides
It is modified.In the present invention, the reaction temperature in the step (1) is preferably 40~80 DEG C, more preferably 50~70 DEG C, most preferably
For 55~65 DEG C.In the present invention, when the reaction time in the step (1) is preferably 0.5~3 small, more preferably 1~2.5
Hour, when being most preferably 1.5~2 small.In the present invention, the reaction pressure in the step (1) is preferably 1~5MPa, more excellent
Elect 2~3MPa as.In the present invention, the reaction in the step (1) preferably carries out under the protection of nitrogen.In the present invention,
Reaction in the step (1) carries out preferably under conditions of stirring.
In the present invention, the alkyl glycosides has the structure shown in Formulas I：
In Formulas I, R1The alkyl for being 1~10 for carbon number, is preferably the alkyl that carbon number is 1~6, more preferably-
CH3、-C2H5、-C3H7、-C4H9、-C5H11Or-C6H13.In the present invention, the alkyl glycosides is preferably methylglycoside, ethyl sugar
Glycosides, propyl glucoside, butyl glycoside, amyl group glucosides or hexyl glycoside.It is special that the present invention does not have the source of the alkyl glycosides
Limitation, can be bought by market and obtained.
In the present invention, the epoxides has the structure shown in Formula II：
In Formula II, R2The alkyl for being 1~5 for carbon number, is preferably the alkyl that carbon number is 1~3.In the present invention
In, the epoxides is preferably propylene oxide, epoxy butane or epoxypentane.
In the present invention, the chloride is preferably thionyl chloride, chlorosulfuric acid, phosphorus trichloride or phosphorus pentachloride.
In the present invention, the acidic catalyst is preferably hydrofluoric acid, tartaric acid, oxalic acid, p-methyl benzenesulfonic acid, dodecyl
Benzene sulfonic acid or sulfamic acid.
In the present invention, the mass ratio of the alkyl glycosides, epoxides, chloride and acidic catalyst is preferably (40
~80)：(8~12)：(9~11)：(0.8~1.6), more preferably (50~70)：(9~11)：10:(1~1.4), most preferably
For (55~65)：10:10:1.2.
Step (2) of the present invention continues to be modified alkyl glycosides using fatty amine, forms aminoalkyl glucosides.In this hair
In bright, the reaction temperature in the step (2) is preferably 180~240 DEG C, more preferably 200~220 DEG C.In the present invention, institute
When the reaction time stated in step (2) is preferably 2~4 small, more preferably 2.5~3.5 it is small when.In the present invention, the step
(2) reaction in preferably carries out in water.In the present invention, the reaction in the step (2) preferably carries out under agitation.
In the present invention, the fatty amine has the structure shown in formula III：
Wherein o is 0~4.
In the present invention, the fatty amine be preferably ethylenediamine, diethylenetriamine, triethylene tetramine, tetraethylenepentamine or
Pentaethylene hexamine.
In the present invention, the mass ratio of the alkyl glycosides and fatty amine is preferably (40~80)：(10~12), more preferably
For (50~70)：11, be most preferably (55~65)：11.In the present invention, the dosage of the water preferably makes alkyl glycosides and water
Mass ratio is (40~80)：(50~90), more preferably (50~70)：(60~80), are most preferably (55~65)：(65~
75)。
In step (3) of the present invention using acrylamide and 2- acrylamide-2-methyl propane sulfonics continue to alkyl glycosides into
Row is modified, and obtains aminoalkyl glucosides graft copolymer.In the present invention, in the step (3) pH value of reaction be preferably 8~
10, more preferably 9.In the present invention, the reaction temperature in the step (3) is preferably 40~60 DEG C, and more preferably 45~55
DEG C, it is most preferably 50 DEG C.In the present invention, when the reaction time in the step (3) is preferably 4~6 small, more preferably 5 is small
When.In the present invention, the reaction in the step (3) carries out preferably under conditions of stirring.
In the present invention, the acrylamide has the structure shown in formula IV：
In the present invention, the 2- acrylamide-2-methyl propane sulfonics have the structure shown in Formula V：
In the present invention, the initiator is preferably ammonium persulfate, potassium permanganate, ammonium ceric nitrate, tert-butyl hydroperoxide
Or azodiisobutyronitrile.
In the present invention, the matter of the alkyl glycosides, acrylamide, 2- acrylamide-2-methyl propane sulfonics and initiator
Amount is than being preferably (40~80)：(20~36)：(10~20)：(0.3~0.9), more preferably (50~70)：(23~32)：(12
~18)：(0.4~0.8), is most preferably (55~65)：(25~28)：(14~16)：(0.5~0.6).
In the present invention, preferably washed, filtered, dry and crushing after the completion of step (3) reaction, obtain amido
Alkyl glycosides graft copolymer.In the present invention, the method for the washing is preferably first washed using acetic acid, washed again with acetone
Wash, be finally washed with water.
The present invention provides a kind of aminoalkyl glucosides graft copolymer, including the structure shown in formula A：
In formula A, n is 1~3, is preferably 1,2 or 3；
O is 0~4, is preferably 0,1,2,3 or 4；
M is 1~3, is preferably 1,2 or 3；
P is 2~20, is preferably 5~18, more preferably 8~16, it is most preferably 10~12；
Q is 2~15, is preferably 5~12, more preferably 8~10；
R1The alkyl for being 1~10 for carbon number, is preferably the alkyl that carbon number is 1~6, more preferably-CH3、-
C2H5、-C3H7、-C4H9、-C5H11Or-C6H13；
R2The alkyl for being 1~5 for carbon number, is preferably the alkyl that carbon number is 1~3, more preferably methyl, ethyl
Or propyl group.
In the present invention, amido described in the preparation method and above-mentioned technical proposal of the aminoalkyl glucosides graft copolymer
The preparation method of alkyl glycosides graft copolymer is consistent, and details are not described herein.
The present invention provides a kind of drilling fluid, including the aminoalkyl glucosides graft copolymer described in above-mentioned technical proposal.
In the present invention, the aminoalkyl glucosides graft copolymer have preferable rejection, greasy property, filtrate loss controllability,
Salt resistance and complex salt pollutant performance, are added to the performance that drilling fluid can be improved in drilling fluid.In the present invention, aminoalkyl
Mass percent of the glucosides graft copolymer in drilling fluid is preferably 1~2%, and more preferably 1.5%.The present invention is to drilling fluid
In there is no special limitation except the other compositions of aminoalkyl glucosides graft copolymerization beyond the region of objective existence, those skilled in the art can be according to reality
Need to select drilling fluid component well known to those skilled in the art.In the present invention, the drilling fluid is preferably by following components group
Into：
The aminoalkyl glucosides graft copolymer of 1~2wt%；
The flow pattern regulator of 0.3~1.2wt%；
The fluid loss additive of 2.2~8wt%；
The sealing agent of 2~6wt%；
The pH adjusting agent of 0.2~1.2wt%；
The potassium chloride of 7~10wt%；
The sulfur-bearing antioxidant of 0.2~0.6wt%；
The carbonate of 0.2~0.6wt%；
Surplus is water.
In the present invention, the mass content of the aminoalkyl glucosides graft copolymer is preferably 1.2~1.8%, more excellent
Elect 1.4~1.6% as, be most preferably 1.5%.In the present invention, the aminoalkyl glucosides graft copolymer and above-mentioned technology
Aminoalkyl glucosides graft copolymer described in scheme suppresses, and details are not described herein.
In the present invention, the mass concentration of the flow pattern regulator is preferably 0.5~1%, and more preferably 0.6~0.9%,
Most preferably 0.7~0.8%.In the present invention, the flow pattern regulator preferably include high-viscosity sodium carboxymethyl cellulose salt and
One or both of xanthans, more preferably including high-viscosity sodium carboxymethyl cellulose salt and xanthans.In the present invention, institute
The mass ratio for stating high-viscosity sodium carboxymethyl cellulose salt and xanthans is preferably (0.5~1.5):1, more preferably (0.8~
1.2):1, it is most preferably 1:1.
In the present invention, the mass content of the fluid loss additive is preferably 3~7%, and more preferably 4~6%, be most preferably
5%.In the present invention, the fluid loss additive preferably includes one in low-viscosity sodium carboxymethyl cellulose salt and sodium carboxymethyl starch
Kind or two kinds, more preferably including low-viscosity sodium carboxymethyl cellulose salt and sodium carboxymethyl starch.In the present invention, the low viscosity
The mass ratio of sanlose and sodium carboxymethyl starch is preferably (0.6~1):(2~7), more preferably (0.7~
0.9)：(3~6), are most preferably 0.8：(4~5).
In the present invention, the mass content of the sealing agent is preferably 3~5%, and more preferably 4%.In the present invention, institute
State sealing agent and preferably include calcium carbonate, oil-soluble resin, without the one or more in seepage formation sealant and sulfonated gilsonite.
In the present invention, the mass content of the pH adjusting agent is preferably 0.5~1%, and more preferably 0.6~0.9%,
Most preferably 0.7~0.8%.In the present invention, the pH adjusting agent is preferably included in sodium hydroxide, potassium hydroxide, ammonium hydroxide
One or more.
In the present invention, the mass content of the potassium chloride is preferably 8~9%.
In the present invention, the mass content of the sulfur-bearing antioxidant is preferably 0.3~0.5%, and more preferably 0.4%.
In the present invention, the sulfur-bearing antioxidant preferably includes one kind or several in sodium hydrogensulfite, sodium sulfite, vulcanized sodium and sulphur
Kind.
In the present invention, the mass content of the carbonate is preferably 0.3~0.5%, and more preferably 0.4%.In this hair
In bright, the carbonate preferably includes one or both of sodium carbonate and potassium carbonate.
In the present invention, the mass content of the water is that aminoalkyl glucosides graft copolymer, flow pattern are removed in drilling fluid
Remaining mass content after conditioning agent, fluid loss additive, sealing agent, pH adjusting agent, potassium chloride, sulfur-bearing antioxidant and carbonate.
The present invention does not have water special limitation, it is preferred to use deionized water.
Contain aminoalkyl glucosides graft copolymer in drilling fluid provided by the invention, the aminoalkyl glucosides grafting is altogether
Polymers has preferable rejection, greasy property, filtrate loss controllability, salt resistance and complex salt pollutant performance, passes through amido alkane
Base glucosides graft copolymer is used cooperatively with other compositions in drilling fluid, drilling fluid provided by the invention is had preferable suppression
Performance, greasy property, filtrate loss controllability, salt resistance and anti-complex salt pollutant performance processed；And drilling fluid provided by the invention without
Solid phase particles, will not destroy oil flow channel, drilling fluid provided by the invention is had preferable reservoir protection；The present invention provides
Drilling well liquid energy effectively solve strong retraction mud shale, the borehole well instability containing the caving grounds such as mud stone and shale gas horizontal well is asked
Topic, meets reservoir protection requirement.Test result indicates that rock core primary recovery >=98.5% of drilling fluid provided by the invention,
Rock core relative recovery >=99.2%；Middle filter pressing loss ＜ 2mL；Dynamic Permeability recovery value ＞ 93%, static resume permeability
Value ＞ 94%.
In addition, the aminoalkyl glucosides graft copolymer is used cooperatively with the other compositions in drilling fluid, can protect
Other compositions in drilling fluid are not easily decomposed at high temperature, drilling fluid provided by the invention is had preferable heat-resisting property and is resisted
Dirty performance；And the aminoalkyl glucosides graft copolymer has preferable greasy property, makes drilling fluid provided by the invention
Greasy property is also preferable.Test result indicates that the temperature resistance of drilling fluid provided by the invention reaches 150 DEG C, extreme boundary lubrication coefficient
＜ 0.08, salt-resistance are saturation, and anticalcium 15%, anti-swelling soil nature is 25%, and anti-flooding is 40%, and antigen oiliness is
25%.
In addition, drilling fluid provided by the invention is nontoxic, harmless, safety and environmental protection；And cost is relatively low.
The present invention provides a kind of preparation method of drilling fluid described in above-mentioned technical proposal, including：
By the aminoalkyl glucosides graft copolymer, flow pattern regulator, fluid loss additive, sealing agent, pH adjusting agent, carbon
Burin-in process is carried out after hydrochlorate, potassium chloride, sulfur-bearing antioxidant and water mixing, obtains drilling fluid.
In the present invention, the aminoalkyl glucosides graft copolymer, flow pattern regulator, fluid loss additive, pH adjusting agent,
Aminoalkyl glucosides described in carbonate, potassium chloride, sulfur-bearing antioxidant and water and their dosage and above-mentioned technical proposal is grafted
Copolymer, flow pattern regulator, fluid loss additive, pH adjusting agent, carbonate, potassium chloride, sulfur-bearing antioxidant and water and they
Mass content is consistent, and details are not described herein.
In the present invention, the temperature of the burin-in process is preferably 140~160 DEG C, more preferably 145~155 DEG C, optimal
Elect 150 DEG C as.In the present invention, when the time of the burin-in process is preferably 14~18 small, more preferably 16 it is small when.
Method provided by the invention prepares drilling fluid using aminoalkyl glucosides graft copolymer as raw material, is preparing drilling fluid
During be used cooperatively by the aminoalkyl glucosides graft copolymer and other compositions in drilling fluid, put forward the present invention
The drilling fluid that the method for confession is prepared has preferable rejection, filtrate loss controllability and reservoir protection performance.In addition, this hair
The drilling fluid that the method for bright offer is prepared also has preferable temperature resistance, lubricity, salt resistance and anti-complex salt pollution
Energy.In addition, the drilling fluid that method provided by the invention is prepared is nontoxic, harmless, safety and environmental protection；And cost is relatively low.
Raw material used in following embodiments of the present invention is commercial goods, and methylglycoside used has shown in Formulas I
Structure, R are-CH3, for the product of Hubei Ju Sheng Science and Technology Ltd.s offer；Ethyl glucoside used has the knot shown in Formulas I
Structure, R are-C2H5, for the product of Central Plains petroleum works company offer；Propyl glucoside used have Formulas I shown in structure, R for-
C3H7, for the product of Central Plains petroleum works company offer；Butyl glycoside used has the structure shown in Formulas I, and R is-C4H9, it is
The product that Central Plains petroleum works company provides；Amyl group glucosides used has the structure shown in Formulas I, and R is-C5H11, it is Central Plains stone
The product that oily engineering company provides；Hexyl glycoside used has the structure shown in Formulas I, and R is-C6H13, it is Central Plains petroleum works
The product that company provides.
Embodiment 1
40 parts of methylglycoside, 8 parts of propylene oxide, 9 parts of thionyl chloride and 0.8 part of hydrofluoric acid are added by weight
Enter in high-temperature high-pressure reaction kettle and purge air in kettle with nitrogen, and pressure is raised to 1.0MPa with nitrogen, start stirring, rise temperature
Degree to 40 DEG C reaction 0.5 it is small when, obtain the first intermediate product；50 parts of water are added in the first intermediate product, 10 parts of ethylenediamines stir
Mix it is uniformly mixed, be warming up to 180 DEG C reaction 2 it is small when, obtain the second intermediate product；20 parts of propylene are added in the second intermediate product
Acid amides and 10 parts of 2- acrylamide-2-methyl propane sulfonics, stirring and dissolving is complete, adjusts pH value to 8, adds 0.3 part of ammonium sulfate and draw
Agent is sent out, when reaction 4 is small at 40 DEG C, obtains aminomethyl glucosides graft copolymer crude product.
Above-mentioned aminomethyl glucosides graft copolymer crude product is washed into suction filtration with 30 parts of acetic acid, then pumping is washed with 40 parts of matte
Filter, is finally filtered, then drying and crushing with 500 parts of water washings, obtains aminomethyl glucosides graft copolymer, calculates product grafting
Rate is 82.45%.
The aminomethyl glucosides graft copolymer that the embodiment of the present invention 1 is prepared carries out infrared spectrum detection, detection
The results are shown in Figure 1, and Fig. 1 is the aminomethyl glucosides graft copolymer that the embodiment of the present invention 1 is prepared, as shown in Figure 1, ripple
Number 3380cm-1For the stretching vibration peak of O-H keys, 2830~2950cm-1For the stretching vibration peak of c h bond in methyl and methylene,
Glycosidic structure is can determine that；Wave number 1151cm-1For the stretching vibration peak of C-O-C, 1050~1100cm-1For C-O keys in hydroxyl
Stretching vibration peak, it may be determined that contain polyether structure；Wave number 1668cm-1For the stretching vibration peak of C=O in acid amides, it may be determined that there is acyl
Amine structure；Wave number 1090cm-1For the stretching vibration peak of O=S=O, it may be determined that there is Sulfonic acid structures；1419cm-1For the suction of C-N keys
Receive peak, 1196cm-1For the flexural vibrations peak of C-N keys, 3380cm-1For the absworption peak of N-H, it may be determined that the structure containing amine.Explanation
The groups such as amido, polyethers, acid amides, sulfonic acid have been introduced in alkyl polyglycoside molecule structure.The side that the embodiment of the present invention 1 provides
The target product for including formula A structures can be prepared in method.
Embodiment 2
It is high that 50 parts of ethyl glucosides, 9 parts of epoxy butanes, 10 parts of chlorosulfuric acids and 1.0 parts of tartaric acid are added into high temperature by weight
Reaction kettle is pressed, air in kettle is purged with nitrogen, and pressure is raised to 2.0MPa with nitrogen, starts stirring, rise temperature is to 50 DEG C
React 1 it is small when, obtain the first intermediate product；60 parts of water, 11 parts of diethylenetriamines are added in the first intermediate product, are stirred
Uniformly, raise temperature to 190 DEG C reaction 3 it is small when, obtain the second intermediate product；Acrylamide 24 is added in the second intermediate product
12 parts of part and 2- acrylamide-2-methyl propane sulfonics, stirring and dissolving is complete, adjusting pH value to 9, adds 0.4 part of potassium permanganate
Initiator, when reaction 5 is small at 50 DEG C, obtains amido ethyl glucoside graft copolymer crude product.
Above-mentioned amido ethyl glucoside graft copolymer crude product is washed into suction filtration with 40 parts of acetic acid, then pumping is washed with 50 parts of acetone
Filter, is finally filtered with 600 parts of water washings；Then drying and crushing, obtains amido ethyl glucoside graft copolymer, calculates product grafting
Rate is 84.57%.
The amido ethyl glucoside graft copolymer that the embodiment of the present invention 2 is prepared carries out infrared spectrum detection, detection
The results are shown in Figure 2, and Fig. 2 is the infrared spectrogram for the amido ethyl glucoside graft copolymer that the embodiment of the present invention 2 is prepared.
As can be seen that wave number 3380cm-1For the stretching vibration peak of O-H keys, 2830~2950cm-1For c h bond in methyl and methylene
Stretching vibration peak, it may be determined that have glycosidic structure；Wave number 1151cm-1For the stretching vibration peak of C-O-C, 1050~1100cm-1For hydroxyl
The stretching vibration peak of C-O keys in base, it may be determined that contain polyether structure；Wave number 1668cm-1For the stretching vibration peak of C=O in acid amides,
Amide structure is can determine that；Wave number 1090cm-1For the stretching vibration peak of O=S=O, it may be determined that there is Sulfonic acid structures；1419cm-1For
The absworption peak of C-N keys, 1196cm-1For the flexural vibrations peak of C-N keys, 3380cm-1For the absworption peak of N-H, it may be determined that contain amine
Structure.Illustrate that the groups such as amido, polyethers, acid amides, sulfonic acid have been introduced in alkyl polyglycoside molecule structure.The embodiment of the present invention
The target product for including formula A structures can be prepared in 2 methods provided.
Embodiment 3
It is high that 60 parts of propyl glucosides, 10 parts of epoxypentanes, 11 parts of phosphorus trichlorides and 1.1 parts of oxalic acid are added into high temperature by weight
Reaction kettle is pressed, air in kettle is purged with nitrogen, and pressure is raised to 3.0MPa with nitrogen, stirring is started, is warming up to 60 DEG C of reactions 2
Hour, obtain the first intermediate product；70 parts of water and 12 parts of triethylene tetramines are added in first product in first, are stirred
It is even, rise temperature to 200 DEG C reaction 4 it is small when, obtain the second intermediate product；28 parts of acryloyl is added in the second intermediate product
Amine and 14 parts of 2- acrylamide-2-methyl propane sulfonics, stirring and dissolving is complete, adjusting pH value to 10, adds 0.5 part of cerous nitrate
Ammonium initiator, when reaction 6 is small at 60 DEG C, obtains aminocarbonyl propyl glucosides graft copolymer crude product.
Filtered after above-mentioned aminocarbonyl propyl glucosides copolymer crude product is washed in 50 parts of acetic acid, then after being washed with 60 parts of acetone
Filter, finally with being filtered after 700 parts of water washings, then drying and crushing, obtains aminocarbonyl propyl glucosides graft copolymer, calculates product
Grafting rate is 85.32%.
The aminocarbonyl propyl glucosides graft copolymer that the embodiment of the present invention 3 is prepared carries out infrared spectrum detection, detection
The results are shown in Figure 3, and Fig. 3 is the infrared spectrogram for the aminocarbonyl propyl glucosides graft copolymer that the embodiment of the present invention 3 is prepared.
As can be seen that wave number 3381cm-1For the stretching vibration peak of O-H keys, 2830~2950cm-1For c h bond in methyl and methylene
Stretching vibration peak, it may be determined that have glycosidic structure；Wave number 1152cm-1For the stretching vibration peak of C-O-C, 1050~1100cm-1For hydroxyl
The stretching vibration peak of C-O keys in base, it may be determined that contain polyether structure；Wave number 1667cm-1For the stretching vibration peak of C=O in acid amides,
Amide structure is can determine that；Wave number 1091cm-1For the stretching vibration peak of O=S=O, it may be determined that there is Sulfonic acid structures；1418cm-1For
The absworption peak of C-N keys, 1196cm-1For the flexural vibrations peak of C-N keys, 3381cm-1For the absworption peak of N-H, it may be determined that contain amine
Structure.Illustrate that the groups such as amido, polyethers, acid amides, sulfonic acid have been introduced in alkyl polyglycoside molecule structure.The embodiment of the present invention
The target product for including formula A structures can be prepared in 3 methods provided.
Embodiment 4
By weight by 70 parts of butyl glycoside, 11 parts of propylene oxide, 11 parts without phosphorus chloride and 1.2 parts to toluene sulphur
Acid adds high-temperature high-pressure reaction kettle, and air in kettle is purged with nitrogen, and raises pressure to 4.0MPa with nitrogen, starts stirring, rises
High-temperature to 70 DEG C reaction 3 it is small when, obtain the first intermediate product；80 parts of water and 12 part of four ethene are added in the first intermediate product
Five amine, are uniformly mixed, be warming up to 220 DEG C reaction 4 it is small when, obtain the second intermediate product；Added in the second intermediate product
32 parts of acrylamide and 16 parts of 2- acrylamide-2-methyl propane sulfonics, stirring and dissolving is complete, adjusts pH value to 10, adds 0.6
The tert-butyl hydroperoxide initiator of part, when reaction 6 is small at 60 DEG C, obtains amido butyl glycoside graft copolymer crude product.
Above-mentioned amido butyl glycoside graft copolymer crude product is washed into suction filtration with 60 parts of acetic acid, then is washed with 70 parts of matte
Suction filtration is washed, is finally filtered with 800 parts of water washings, then drying and crushing, obtains amido butyl glycoside graft copolymer, calculates product
Grafting rate is 86.23%.
The amido butyl glycoside graft copolymer that the embodiment of the present invention 4 is prepared carries out infrared spectrum detection, detection
The results are shown in Figure 4, and Fig. 4 is the amido butyl glycoside graft copolymer infrared spectrogram that the embodiment of the present invention 4 is prepared.Can
To find out, wave number 3380cm-1For the stretching vibration peak of O-H keys, 2830~2950cm-1Stretched for c h bond in methyl and methylene
Contracting vibration peak, it may be determined that have glycosidic structure；Wave number 1151cm-1For the stretching vibration peak of C-O-C, 1050~1100cm-1For hydroxyl
The stretching vibration peak of middle C-O keys, it may be determined that contain polyether structure；Wave number 1668cm-1, can for the stretching vibration peak of C=O in acid amides
Amide structure is determined；Wave number 1092cm-1For the stretching vibration peak of O=S=O, it may be determined that there is Sulfonic acid structures；1419cm-1For C-
The absworption peak of N keys, 1196cm-1For the flexural vibrations peak of C-N keys, 3382cm-1For the absworption peak of N-H, it may be determined that the knot containing amine
Structure.Illustrate that the groups such as amido, polyethers, acid amides, sulfonic acid have been introduced in alkyl polyglycoside molecule structure.The embodiment of the present invention 4
The target product for including formula A structures can be prepared in the method for offer.
Embodiment 5
By weight by 80 parts of amyl group glucosides, 12 parts of propylene oxide, 11 parts of thionyl chloride and 1.4 parts of dodecane
Base benzene sulfonic acid adds high-temperature high-pressure reaction kettle, and air in kettle is purged with nitrogen, and raises pressure to 5.0MPa with nitrogen, starts and stirs
Mix, rise temperature to 80 DEG C reaction 3 it is small when, obtain the first intermediate product；90 parts of water and 12 parts are added in the first intermediate product,
Be uniformly mixed, be warming up to 240 DEG C reaction 4 it is small when, obtain the second intermediate product；36 parts are added in the second intermediate product
Acrylamide and 18 parts of 2- acrylamide-2-methyl propane sulfonics, stirring are completely dissolved, and are adjusted pH value to 10, are added 0.8 part
Azodiisobutyronitrile initiator, when reaction 6 is small at 60 DEG C, obtains amido amyl group glucosides graft copolymer crude product.
Filtered after above-mentioned amido amyl group glucosides graft copolymer crude product is washed with 60 acetic acid, then after being washed with 80 parts of acetone
Filter, finally with being filtered after 1000 parts of water washings, then drying and crushing, obtains amido amyl group glucosides graft copolymer, calculates production
Product grafting rate is 87.25%.
The amido amyl group glucosides graft copolymer that the embodiment of the present invention 5 is prepared carries out infrared spectrum detection, detection
The results are shown in Figure 5, and Fig. 5 is the amido amyl group glucosides graft copolymer infrared spectrogram that the embodiment of the present invention 5 is prepared.Can
To find out, wave number 3380cm-1For the stretching vibration peak of O-H keys, 2830~2950cm-1Stretched for c h bond in methyl and methylene
Contracting vibration peak, it may be determined that have glycosidic structure；Wave number 1151cm-1For the stretching vibration peak of C-O-C, 1050~1100cm-1For hydroxyl
The stretching vibration peak of middle C-O keys, it may be determined that contain polyether structure；Wave number 1668cm-1, can for the stretching vibration peak of C=O in acid amides
Amide structure is determined；Wave number 1092cm-1For the stretching vibration peak of O=S=O, it may be determined that there is Sulfonic acid structures；1419cm-1For C-
The absworption peak of N keys, 1196cm-1For the flexural vibrations peak of C-N keys, 3382cm-1For the absworption peak of N-H, it may be determined that the knot containing amine
Structure.Illustrate that the groups such as amido, polyethers, acid amides, sulfonic acid have been introduced in alkyl polyglycoside molecule structure.The embodiment of the present invention 5
The target product for including formula A structures can be prepared in the method for offer.
Embodiment 6
By weight by 80 parts of hexyl glycoside, 12 parts of propylene oxide, 11 parts of chloro sulfoxide and 1.6 parts of amido sulphur
Acid is added to high-temperature high-pressure reaction kettle, with air in nitrogen purging kettle, and raises pressure to 5.0MPa with nitrogen, starts stirring,
Raise temperature to 80 DEG C reaction 3 it is small when, obtain the first intermediate product；90 parts of water and 12 part of five second are added in the first intermediate product
Alkene hexamine, is uniformly mixed, rise temperature to 240 DEG C reaction 4 it is small when, obtain the second intermediate product；Among above-mentioned second
36 parts of acrylamides and 20 parts of 2- acrylamide-2-methyl propane sulfonics are added in product, stirring and dissolving is complete, adjust pH value to
10,0.9 part of ammonium ceric nitrate initiator is added, when 60 DEG C of reactions 6 are small, obtains aminohexyl glucosides graft copolymer crude product.
Aminohexyl glucosides graft copolymer crude product is washed into suction filtration with 60 parts of acetic acid, then suction filtration is washed with 80 parts of acetone,
Finally filtered with 1000 parts of water washings, then drying and crushing, obtain aminohexyl glucosides graft copolymer, calculate product grafting rate
For 87.71%.
The aminohexyl glucosides graft copolymer that the embodiment of the present invention 6 is prepared carries out infrared spectrum detection, detection
The results are shown in Figure 6, and Fig. 6 is the infrared spectrogram for the aminohexyl glucosides graft copolymer that the embodiment of the present invention 6 is prepared.
As can be seen that wave number 3382cm-1For the stretching vibration peak of O-H keys, 2830~2950cm-1For c h bond in methyl and methylene
Stretching vibration peak, it may be determined that have glycosidic structure；Wave number 1153cm-1For the stretching vibration peak of C-O-C, 1050~1100cm-1For hydroxyl
The stretching vibration peak of C-O keys in base, it may be determined that contain polyether structure；Wave number 1667cm-1For the stretching vibration peak of C=O in acid amides,
Amide structure is can determine that；Wave number 1091cm-1For the stretching vibration peak of O=S=O, it may be determined that there is Sulfonic acid structures；1418cm-1For
The absworption peak of C-N keys, 1198cm-1For the flexural vibrations peak of C-N keys, 3381cm-1For the absworption peak of N-H, it may be determined that contain amine
Structure.Illustrate that the groups such as amido, polyethers, acid amides, sulfonic acid have been introduced in alkyl polyglycoside molecule structure.The embodiment of the present invention
The target product for including formula A structures can be prepared in 6 methods provided.
Embodiment 7
By the following method, the suppression for the aminoalkyl glucosides graft copolymer that the test embodiment of the present invention 1~6 is prepared
Performance processed：
By above-mentioned mass concentration be 1% aminoalkyl glucosides graft copolymer aqueous solution under 7000 revs/min of speed
After high-speed stirred 5min, pour into spare in ageing can；Take the landwaste of 2.0mm~5.0mm to dry 4h at 103 DEG C, be down to room temperature；
Weigh G0The aminoalkyl glucosides graft copolymer aqueous solution that g landwaste is put into ageing can and above-mentioned mass concentration is 1% is in 150 DEG C
Lower rolling 16h, takes out after cooling, and recycling landwaste is sieved with aperture 0.42mm, and the dry 4h at 103 DEG C, is down to room temperature and weighs recycling
Landwaste quality is denoted as G1；Then overweight recycling landwaste will have been claimed to be put into clear water at 150 DEG C and rolled 2h, taken out after cooling,
Recycling landwaste is sieved with aperture 0.42mm, the dry 4h at 103 DEG C, is cooled to room temperature weighing recycling landwaste quality, is denoted as G2；According to
Following formula calculates shale primary recovery, shale secondary returning yield and shale relative recovery：
Shale primary recovery=G1/G0× 100%；
Shale secondary returning yield=G2/G0× 100%；
Shale relative recovery=shale secondary returning yield/shale primary recovery × 100%.
Test result is as shown in table 1, and table 1 is aminoalkyl glucosides graft copolymer inhibition prepared by the embodiment of the present invention
Can test result.
Aminoalkyl glucosides graft copolymer rejection test result prepared by 1 embodiment of the present invention of table
Note：R1For shale primary recovery, R is shale relative recovery
As shown in Table 1, shale is high in the case where mass concentration is 1% 150 DEG C of aminoalkyl glucosides graft copolymer aqueous solution
When temperature rolling 16 is small, shale primary recovery ＞ 97%, relative recovery ＞ 99%, have preferable caving control performance.
Embodiment 8
The lubricity of aminoalkyl glucosides graft copolymer prepared by the embodiment of the present invention 1~6 is tested by the following method
Energy：
The extreme boundary lubrication instrument of the EP models provided using Zhengzhou north and south Instrument Design Co., Ltd, setting instrument is in 300r/
15min is operated under min, it is 60r/min then to adjust rotating speed；
Sliding block in instrument is immersed into the aminoalkyl glucosides graft copolymer aqueous solution that above-mentioned mass concentration is 1%, is adjusted
Torque spanner value is 16.95N/m, apparatus working 5min, reads the aminoalkyl glucosides graft copolymer water that mass concentration is 1%
The numerical value shown when solution soaks sliding block on instrument, extreme boundary lubrication coefficient calculation formula are：
In above formula：K is extreme boundary lubrication coefficient；
When X is the aminoalkyl glucosides graft copolymer aqueous solution soaking sliding block provided by the invention that mass concentration is 1%
The numerical value shown on instrument.
Test result is as shown in table 2, the lubrication for the aminoalkyl glucosides graft copolymer that table 2 is prepared for the embodiment of the present invention
The performance test results.
Aminoalkyl glucosides graft copolymerization greasy property test result prepared by 2 embodiment of the present invention of table
As shown in Table 2, mass concentration is the extreme boundary lubrication coefficient ＜ of 1% aminoalkyl glucosides graft copolymer aqueous solution
0.1, compared with distilled water, lubricating coefficient reduced rate ＞ 77%, has good greasy property.
Embodiment 9
The drop for the aminoalkyl glucosides graft copolymer that the test embodiment of the present invention 1~6 is prepared by the following method
Filtration property：
The aminoalkyl glucosides graft copolymer that mass concentration is 1.5% is added in fresh water soil paste, at 7000 revs/min
Under speed after high-speed stirred 5min, pour into and roll 16h in ageing can at 150 DEG C, taken out after cooling, in middle pressure dehydration analyzer
The middle pressure fluid loss FL, unit mL of upper test drilling fluid.
Test result is as shown in table 3, and table 3 is aminoalkyl glucosides graft copolymer filtrate reducing prepared by the embodiment of the present invention
The performance test results.
Aminoalkyl glucosides graft copolymer filtrate loss controllability test result prepared by 3 embodiment of the present invention of table
Note：When hot rolling condition is 150 DEG C 16 small；AV is apparent viscosity, and PV is plastic viscosity, and YP is yield value, and G '/G " is quiet
Shear force, FL are middle filter pressing loss
As shown in Table 3,6% fresh water soil paste (fresh water soil paste preparation method：In 1L water add 3g natrium carbonicum calcinatums and
60g drilling fluid experiment sodium bentonites, after stirring 20min, room temperature is made after placing 24h, matter of the bentonite in fresh water soil paste
After concentration is measured to add 1.5% aminoalkyl glucosides graft copolymer in 6%) when 150 DEG C of heat rollings 16 are small, with being not added with amido alkane
Base glucosides graft copolymer is compared, and middle filter pressing loss is down to 3.2~3.6mL by 40mL, and filter loss reduced rate is 91%~92%,
With preferable filtrate loss controllability.
Embodiment 10
The aminoalkyl glucosides graft copolymer that the test embodiment of the present invention 1~6 is prepared by the following method resists
Salt pollutant performance：
The aminoalkyl glucosides graft copolymer that mass concentration is 1.5% is added in brine mud, at 7000 revs/min
Under speed after high-speed stirred 5min, pour into and roll 16h in ageing can at 150 DEG C, taken out after cooling, in middle pressure dehydration analyzer
The middle pressure fluid loss FL, unit mL of upper test drilling fluid.
Test result is as shown in table 4, and table 4 is dirty for aminoalkyl glucosides graft copolymer salt resistance prepared by the embodiment of the present invention
Contaminate the performance test results.
Aminoalkyl glucosides graft copolymer salt resistance pollutant performance test result prepared by 4 embodiment of the present invention of table
Hot rolling condition：When 150 DEG C 16 small, FL is middle filter pressing loss
As shown in Table 4,350mL brine mud (in fresh water-based slurry add 4% NaCl, high-speed stirred 20min,
At room temperature conserve 24h after be made, the fresh water-based slurry preparation method is consistent with the preparation method of above-mentioned fresh water soil paste) in addition
When 1.5% 150 DEG C of heat rollings 16 of aminoalkyl glucosides graft copolymer are small, with being not added with aminoalkyl glucosides graft copolymer phase
Than middle filter pressing loss is down to 6.8~7.4mL by 110mL, and filter loss reduced rate is 93.27%~93.82%, aminoalkyl sugar
Glycosides graft copolymer remains to significantly reduce drilling fluid filtration after being subject to complex salt to pollute, and has preferable salt resistance pollution
Energy.
Embodiment 11
The anti-compound of aminoalkyl glucosides graft copolymer prepared by the embodiment of the present invention 1~6 is tested by the following method
Salt pollutant performance：
In compound salt-water basic slurry add mass concentration be 1.5% aminoalkyl glucosides graft copolymer, 7000 turns/
Under the speed divided after high-speed stirred 5min, pour into and roll 16h in ageing can at 150 DEG C, taken out after cooling, surveyed in middle pressure dehydration
Determine the middle pressure fluid loss FL, unit mL of test drilling fluid on instrument.
Test result is as shown in table 5, and table 5 is anti-multiple for the aminoalkyl glucosides graft copolymer of preparation of the embodiment of the present invention
Close salt pollutant performance test result.
The anti-complex salt pollutant performance test result of aminoalkyl glucosides graft copolymer prepared by 5 embodiment of the present invention of table
Hot rolling condition：When 150 DEG C 16 small, FL is middle filter pressing loss
As shown in Table 5, in 350mL compound alkali slurry, (preparation method of compound alkali slurry is：45g chlorine is added in 1L water
Change sodium, 13g magnesium chlorides and 5g anhydrous calcium chlorides, fully after dissolving, add 150g calcium soil and 9g natrium carbonicum calcinatums, high-speed stirred
20min, is made after conserving 24h at room temperature) 1.5% aminoalkyl glucosides graft copolymer is added in 150 DEG C high warm rolling
16 it is small when, compared with being not added with aminoalkyl glucosides graft copolymer, middle filter pressing loss is down to 4.6~5.4mL, leak-off by 110mL
It is 95.09%~95.82% to measure reduced rate, and aminoalkyl glucosides graft copolymer remains to significantly reduce brill after complex salt pollution
Well liquid filtrate reducing amount, has preferable anti-complex salt pollutant performance.
Embodiment 12
The aminoalkyl glucosides graft copolymer that the 4g embodiment of the present invention 1 is prepared is added in 396g water,
Stirred under the speed of 5000r/min 5 minutes, add high-viscosity sodium carboxymethyl cellulose the salt HV-CMC, 0.6g of 0.6g thereto
Xanthans XC, 1.5g low-viscosity sodium carboxymethyl cellulose salt LV-CMC, stirred 20 minutes under the speed of 5000r/min,
Add the calcium carbonate of the sodium carboxymethyl starch CMS-Na, 8g of 7.5g, the Na of the NaOH of 0.8g, 0.8g2CO3, in 5000r/min
Speed under stir 20 minutes, add the potassium chloride of 28g, the sodium hydrogensulfite of 0.8g, is stirred under the speed of 5000r/min
20 minutes, load in ageing can through 150 DEG C of rolling 16h, obtain drilling fluid.
Embodiment 13
The aminoalkyl glucosides graft copolymer that the 7g embodiment of the present invention 2 is prepared is added in 393g water,
Stirred under the speed of 5000r/min 5 minutes, add high-viscosity sodium carboxymethyl cellulose the salt HV-CMC, 2.2g of 2.2g thereto
Xanthans XC, 4g low-viscosity sodium carboxymethyl cellulose salt LV-CMC, stirred 20 minutes under the speed of 5000r/min, then
Add 20g sodium carboxymethyl starch CMS-Na, 20g without seepage formation sealant WLP, the K of the NaOH of 4g, 2g2CO3, in 5000r/
Stirred 20 minutes under the speed of min, add the potassium chloride of 36g, the sodium sulfite of 2g, is stirred under the speed of 5000r/min
20 minutes, load in ageing can through 150 DEG C of rolling 16h, obtain drilling fluid.
Embodiment 14
The aminoalkyl glucosides graft copolymer that the 8g embodiment of the present invention 3 is prepared is added in 392g water,
Stirred under the speed of 5000r/min 5 minutes, add high-viscosity sodium carboxymethyl cellulose the salt HV-CMC, 2.4g of 2.4g thereto
Xanthans XC, 5.3g low-viscosity sodium carboxymethyl cellulose salt LV-CMC, stirred 20 minutes under the speed of 5000r/min,
Add the sulfonated gilsonite of the sodium carboxymethyl starch CMS-Na, 24g of 26.7g, the Na of the NaOH of 4.8g, 2.4g2CO3, in 5000r/
Stirred 20 minutes under the speed of min, add the potassium chloride of 40g, the sulphur of 2.4g, 20 are stirred under the speed of 5000r/min
Minute, load in ageing can through 150 DEG C of rolling 16h, obtain drilling fluid.
Embodiment 15
According to GB/T 16783.1-2014《Industrial gas oil drilling fluid on-the-spot test part 1：Water-base drilling fluid》
Standard, apparent viscosity, plastic viscosity, yield value, gel strength, the middle pressure of drilling fluid that the test embodiment of the present invention is prepared
Filter loss, high temperature and high pressure filter loss, anti-salt property, anticalcium performance, anti-bentonite performance, water resistant leaching performance, anti-performance of crude oils.
According to drilling fluid core recovery test method, test drilling fluid provided by the invention rock core primary recovery and
Relative recovery, concrete operations are as follows：
350mL drilling fluids provided by the invention are measured to stir in cup in height, after stirring 5min under the speed of 7000r/min,
Drilling fluid is poured into spare in ageing can；Take the landwaste of 2.0mm~5.0mm to dry 4h at 103 DEG C, be down to room temperature, weigh G0g
Landwaste is put into ageing can and 16h is rolled at 180 DEG C with the drilling fluid in ageing can, is taken out after cooling, is 0.42mm sieves with aperture
Landwaste is recycled, the dry 4h at 103 DEG C, is down to room temperature weighing recycling landwaste quality and is denoted as G1；Then overweight recycling will have been claimed
Landwaste, which is put into clear water at 180 DEG C, rolls 2h, is taken out after cooling, and the sieve for being 0.42mm with aperture recycles landwaste, at 103 DEG C
Dry 4h, is cooled to room temperature weighing recycling landwaste quality and is denoted as G2.A shale recovery ratio R is calculated respectively1, the recycling of secondary shale
Rate R2With opposite shale recovery ratio R.
R1=G1/G0× 100%；
R2=G2/G0× 100%；
R=R2/R1× 100%.
The extreme boundary lubrication coefficient of drilling fluid provided by the invention is tested by the following method：
The extreme boundary lubrication instrument of the EP models provided using Zhengzhou north and south Instrument Design Co., Ltd, setting instrument is in 300r/
15min is operated under min, it is 60r/min then to adjust rotating speed；
Sliding block in instrument is immersed in drilling fluid provided by the invention, it is 16.95N/m to adjust torque spanner value, and instrument is transported
Turn 5min, the numerical value shown when reading mud soak sliding block provided by the invention on instrument, extreme boundary lubrication coefficient calculation formula
For：
In above formula：K is extreme boundary lubrication coefficient；The number shown when X is mud soak sliding block provided by the invention on instrument
Value.
The reservoir protection of drilling fluid provided by the invention is tested by the following method：
The full-automatic permeability of the Fann-389AP models provided using Beijing Zhong Huitiancheng Science and Technology Ltd.s blocks dress
Put；Full-automatic permeability plugging device temperature is raised to 120 DEG C, loads rock core, is permeated with kerosene, record initial pressure,
Maximum pressure, steady pressure, confined pressure are bigger 2MPa than flowing pressure；
Using drilling fluid provided by the invention progress reversely dynamic or static pollution, used in graduated cylinder reception liquid body and record
Time and volume；
Again forward osmosis, record initial pressure, maximum pressure, steady pressure are carried out with kerosene；
The ratio of the steady pressure after steady pressure and pollution before pollution is permeability resume figure, reflects the present invention
Extent of injury of the drilling fluid of offer to formation rock.
According to《GB/T 16783.1-2014 industrial gas oil drilling fluid on-the-spot test part 1s：Water-base drilling fluid》
Standard, tests the heat-resisting property of drilling fluid provided by the invention.
The performance test results for the drilling fluid that 6 12~embodiment of the embodiment of the present invention 14 of table is prepared
| Test event | Embodiment 12 | Embodiment 13 | Embodiment 14 |
| Apparent viscosity (mPa.s) | 58.5 | 61.5 | 80.5 |
| Plastic viscosity (mPa.s) | 39 | 42 | 55 |
| Yield value (Pa) | 19.5 | 19.5 | 25.5 |
| Gel strength (Pa/Pa) | 3.5/7.5 | 3.0/8.0 | 5.0/10.5 |
| Middle filter pressing loss | 1.4 | 1.2 | 1.6 |
| High temperature and high pressure filter loss | 11 | 12 | 10 |
| Anti-salt property | Saturation | Saturation | Saturation |
| Anticalcium performance | 15% | 15% | 15% |
| Anti- bentonite performance | 25% | 25% | 25% |
| Water resistant soaks performance | 40% | 40% | 40% |
| Anti- performance of crude oils | 25% | 25% | 25% |
| Rock core primary recovery (%) | 98.6 | 98.5 | 99.1 |
| Rock core relative recovery (%) | 99.3 | 99.2 | 99.3 |
| Extreme boundary lubrication coefficient | 0.077 | 0.076 | 0.076 |
| Dynamic Permeability recovery value (%) | 93.48 | 93.36 | 93.65 |
| Static permeability resume figure (%) | 94.46 | 94.18 | 94.27 |
| Heat-resisting property (DEG C) | 150 | 150 | 150 |
As seen from the above embodiment, the present invention provides a kind of preparation method of aminoalkyl glucosides graft copolymer, bag
Include following steps：(1) alkyl glycosides, epoxides, chloride and acidic catalyst are reacted, obtains production among first
Thing；(2) the first intermediate product and fatty amine are reacted, obtains the second intermediate product；(3), will under the action of initiator
Second intermediate product, acrylamide and the reaction of 2- acrylamide-2-methyl propane sulfonics, obtain aminoalkyl glucosides graft copolymerization
Thing.It is this that there is specific knot the present invention provides the aminoalkyl glucosides graft copolymer that specific structure has been prepared in method
The aminoalkyl glucosides graft copolymer of structure have preferable rejection, greasy property, filtrate loss controllability, anti-saturation salt and
Complex salt pollutant performance.In addition, this aminoalkyl glucosides graft copolymer no biotoxicity.
Above-described is only the preferred embodiment of the present invention, it is noted that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of preparation method of aminoalkyl glucosides graft copolymer, comprises the following steps：
(1) alkyl glycosides, epoxides, chloride and acidic catalyst are reacted, obtains the first intermediate product；
(2) the first intermediate product and fatty amine are reacted, obtains the second intermediate product；
(3) under the action of initiator, the second intermediate product, acrylamide and 2- acrylamide-2-methyl propane sulfonics are reacted,
Obtain aminoalkyl glucosides graft copolymer；
The alkyl glycosides has structure shown in Formulas I：
In Formulas I, R1The alkyl for being 1~10 for carbon number；M is 1~3；
The epoxides has the structure shown in Formula II：
In Formula II, R2The alkyl for being 1~5 for carbon number；
The fatty amine has the structure shown in formula III：
In formula III, o is 0~4；
The acrylamide has the structure shown in formula IV：
The 2- acrylamide-2-methyl propane sulfonics have the structure shown in Formula V：
2. the according to the method described in claim 1, it is characterized in that, R1The alkyl for being 1~6 for carbon number.
3. the according to the method described in claim 1, it is characterized in that, R2The alkyl for being 1~5 for carbon number.
4. according to the method described in claim 1, it is characterized in that, the chloride is thionyl chloride, chlorosulfuric acid, phosphorus trichloride
Or phosphorus pentachloride.
5. according to the method described in claim 1, it is characterized in that, the acidic catalyst for hydrofluoric acid, tartaric acid, oxalic acid,
P-methyl benzenesulfonic acid, dodecyl benzene sulfonic acid or sulfamic acid；The initiator is ammonium sulfate, potassium permanganate, ammonium ceric nitrate, tertiary fourth
Base hydrogen peroxide or azodiisobutyronitrile.
6. according to the method described in claim 1, it is characterized in that, the reaction temperature in the step (1) is 40~80 DEG C.
7. according to the method described in claim 1, it is characterized in that, the reaction temperature in the step (2) is 180~240 DEG C.
8. according to the method described in claim 1, it is characterized in that, the reaction temperature in the step (3) is 40~60 DEG C.
9. a kind of aminoalkyl glucosides graft copolymer, including the structure shown in formula A：
In formula A, n is that 1~3, o is that 0~4, m is that 1~3, p is that 2~20, q is 2~15；
R1The alkyl for being 1~10 for carbon number；
R2The alkyl for being 1~5 for carbon number.
10. a kind of drilling fluid, including the aminoalkyl glucosides that method in claim 1~8 described in any one is prepared
Aminoalkyl glucosides graft copolymer described in graft copolymer or claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610941215.2A CN107973827A (en) | 2016-10-25 | 2016-10-25 | A kind of aminoalkyl glucosides graft copolymer and preparation method thereof and drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610941215.2A CN107973827A (en) | 2016-10-25 | 2016-10-25 | A kind of aminoalkyl glucosides graft copolymer and preparation method thereof and drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107973827A true CN107973827A (en) | 2018-05-01 |
Family
ID=62004958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610941215.2A Pending CN107973827A (en) | 2016-10-25 | 2016-10-25 | A kind of aminoalkyl glucosides graft copolymer and preparation method thereof and drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107973827A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020007366A1 (en) * | 2018-07-06 | 2020-01-09 | 中石化石油工程技术服务有限公司 | Substituted sugar or glycoside and use thereof in drilling fluid composition |
| CN111013484A (en) * | 2019-11-25 | 2020-04-17 | 南京科技职业学院 | Alkyl glycoside carboxyl betaine type zwitterionic surfactant and preparation method thereof |
| CN111320727A (en) * | 2018-12-13 | 2020-06-23 | 中石化石油工程技术服务有限公司 | Aryl substituted sugar or glycoside and application thereof in drilling fluid composition |
| CN111320657A (en) * | 2018-12-13 | 2020-06-23 | 中石化石油工程技术服务有限公司 | Silamidoalkyl glycoside, preparation method thereof and drilling fluid |
| CN111320659A (en) * | 2018-12-13 | 2020-06-23 | 中石化石油工程技术服务有限公司 | Sulfamidoglyceryl glycoside, preparation method thereof and drilling fluid |
| CN111574972A (en) * | 2020-06-19 | 2020-08-25 | 中国石油大学(华东) | Environment-friendly high-temperature-resistant shale inhibitor for water-based drilling fluid and preparation method thereof |
| CN113004877A (en) * | 2019-12-20 | 2021-06-22 | 中石化石油工程技术服务有限公司 | Sulfonated amino alkyl glycoside lubricant for drilling fluid and preparation method and application thereof |
| CN113185775A (en) * | 2021-05-17 | 2021-07-30 | 广东圆融新材料有限公司 | Antibacterial polypropylene material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140454A (en) * | 2013-10-29 | 2014-11-12 | 中国石油化工股份有限公司 | Polyether amine based alkyl glycoside for drilling fluid and preparation method thereof |
-
2016
- 2016-10-25 CN CN201610941215.2A patent/CN107973827A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104140454A (en) * | 2013-10-29 | 2014-11-12 | 中国石油化工股份有限公司 | Polyether amine based alkyl glycoside for drilling fluid and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王芬: "壳聚糖改性丙烯酰胺类调剖剂的制备及性能研究", 《石油化工应用》 * |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111542583A (en) * | 2018-07-06 | 2020-08-14 | 中石化石油工程技术服务有限公司 | Substituted sugars or glycosides and their use in drilling fluid compositions |
| CN110684515A (en) * | 2018-07-06 | 2020-01-14 | 中石化石油工程技术服务有限公司 | Substituted sugars or glycosides and their use in drilling fluid compositions |
| US11713409B2 (en) | 2018-07-06 | 2023-08-01 | China Petroleum & Chemical Corporation | Substituted saccharides or glycosides and use thereof in a drilling fluid composition |
| CN111542583B (en) * | 2018-07-06 | 2023-06-23 | 中石化石油工程技术服务有限公司 | Substituted sugars or glycosides and their use in drilling fluid compositions |
| WO2020007366A1 (en) * | 2018-07-06 | 2020-01-09 | 中石化石油工程技术服务有限公司 | Substituted sugar or glycoside and use thereof in drilling fluid composition |
| CN110684515B (en) * | 2018-07-06 | 2022-07-12 | 中国石油化工集团有限公司 | Substituted sugars or glycosides and their use in drilling fluid compositions |
| CN111320659B (en) * | 2018-12-13 | 2022-12-13 | 中石化石油工程技术服务有限公司 | Sulfamidoglyceryl glycoside, preparation method thereof and drilling fluid |
| CN111320657B (en) * | 2018-12-13 | 2023-02-17 | 中国石油化工集团有限公司 | Silamidoalkyl glycoside, preparation method thereof and drilling fluid |
| US11952530B2 (en) | 2018-12-13 | 2024-04-09 | China Petroleum & Chemical Corporation | Aryl-substituted saccharides or glycosides and use thereof in a drilling fluid composition |
| CN112533966A (en) * | 2018-12-13 | 2021-03-19 | 中国石油化工股份有限公司 | Aryl substituted sugar or glycoside and application thereof in drilling fluid composition |
| CN111320727A (en) * | 2018-12-13 | 2020-06-23 | 中石化石油工程技术服务有限公司 | Aryl substituted sugar or glycoside and application thereof in drilling fluid composition |
| CN112533966B (en) * | 2018-12-13 | 2023-06-23 | 中国石油化工股份有限公司 | Aryl substituted saccharides or glycosides and their use in drilling fluid compositions |
| CN111320657A (en) * | 2018-12-13 | 2020-06-23 | 中石化石油工程技术服务有限公司 | Silamidoalkyl glycoside, preparation method thereof and drilling fluid |
| CN111320659A (en) * | 2018-12-13 | 2020-06-23 | 中石化石油工程技术服务有限公司 | Sulfamidoglyceryl glycoside, preparation method thereof and drilling fluid |
| CN111320727B (en) * | 2018-12-13 | 2022-10-14 | 中国石油化工集团有限公司 | Aryl substituted sugar or glycoside and application thereof in drilling fluid composition |
| CN111013484A (en) * | 2019-11-25 | 2020-04-17 | 南京科技职业学院 | Alkyl glycoside carboxyl betaine type zwitterionic surfactant and preparation method thereof |
| CN113004877B (en) * | 2019-12-20 | 2022-07-08 | 中石化石油工程技术服务有限公司 | Sulfonated amino alkyl glycoside lubricant for drilling fluid and preparation method and application thereof |
| CN113004877A (en) * | 2019-12-20 | 2021-06-22 | 中石化石油工程技术服务有限公司 | Sulfonated amino alkyl glycoside lubricant for drilling fluid and preparation method and application thereof |
| CN111574972A (en) * | 2020-06-19 | 2020-08-25 | 中国石油大学(华东) | Environment-friendly high-temperature-resistant shale inhibitor for water-based drilling fluid and preparation method thereof |
| CN111574972B (en) * | 2020-06-19 | 2021-01-26 | 中国石油大学(华东) | Environment-friendly high-temperature-resistant shale inhibitor for water-based drilling fluid and preparation method thereof |
| CN113185775A (en) * | 2021-05-17 | 2021-07-30 | 广东圆融新材料有限公司 | Antibacterial polypropylene material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107973827A (en) | A kind of aminoalkyl glucosides graft copolymer and preparation method thereof and drilling fluid | |
| DK1212385T3 (en) | Quaternary ammonium salts as thickeners for aqueous systems | |
| CN107973880A (en) | A kind of additive for drilling fluid and preparation method thereof and drilling fluid | |
| CN104194750B (en) | It is a kind of for nanometer sealing agent of oil base drilling fluid and preparation method thereof | |
| CN103320104B (en) | A kind of water-in-oil-type biofuel base drilling fluid and preparation method thereof | |
| CN111139044B (en) | Composite emulsifier for oil-based drilling fluid and high-temperature-resistant ultrahigh-density oil-based drilling fluid | |
| EP2970744B1 (en) | Synergistic effect of cosurfactants on the rheological performance of drilling, completion and fracturing fluids | |
| CN105367725B (en) | Nanometer micro-emulsion and its preparation method and application | |
| CN104114670B (en) | The reagent being swelled, the composition comprising the reagent and the method for implementing the reagent for suppressing clay | |
| CN111040742B (en) | Shale inhibitor and preparation method thereof, drilling fluid and application thereof | |
| CN106008255B (en) | A kind of Quaternary Ammonium Gemini Surfactants and its preparation, product and application | |
| CN111718698B (en) | Hyperbranched polyetheramine environment-friendly shale inhibitor, preparation method thereof and water-based drilling fluid | |
| CN109971441B (en) | Bicontinuous phase microemulsion, preparation method thereof, drilling fluid containing microemulsion and preparation method thereof | |
| CN112159651B (en) | Multifunctional thickening agent and preparation method thereof | |
| CN106701046A (en) | Soilless polyether amine alkyl glucoside drilling fluid and preparation method thereof | |
| CN115216281A (en) | Reversible drilling fluid and preparation method and application thereof | |
| CN106749891B (en) | It is applicable amphoteric ion copolymer of drilling fluid filtrate reducing and its preparation method and application and drilling fluid and its application | |
| CN107987808A (en) | A kind of drilling fluid | |
| CN111574973A (en) | Three-water-retention-based drilling fluid system | |
| CN107973865A (en) | A kind of modification of chitosan and preparation method thereof and drilling fluid | |
| WO2021007531A1 (en) | A rheology modifier for organoclay-free invert emulsion drilling fluid systems | |
| CN106905937A (en) | A kind of oil base drilling fluid extracting and cutting agent and preparation method thereof | |
| CN107629768A (en) | A kind of superhigh temperature resistant water-base drilling fluid | |
| CN110564384B (en) | Viscosity improver for oil-based drilling fluid and preparation method thereof | |
| CN106432378A (en) | Polyaminoalkyl glucoside, preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |