CN106675531A - Efficient anti-swelling swelled shrinkage agent for stratum treatment - Google Patents
Efficient anti-swelling swelled shrinkage agent for stratum treatment Download PDFInfo
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- CN106675531A CN106675531A CN201610914101.9A CN201610914101A CN106675531A CN 106675531 A CN106675531 A CN 106675531A CN 201610914101 A CN201610914101 A CN 201610914101A CN 106675531 A CN106675531 A CN 106675531A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
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- C—CHEMISTRY; METALLURGY
- 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
- C08G65/04—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 only
- C08G65/22—Cyclic ethers having at least one atom other than carbon and hydrogen outside the ring
- C08G65/24—Epihalohydrins
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- 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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
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Abstract
The invention provides an efficient anti-swelling swelled shrinkage agent for stratum treatment. The efficient anti-swelling swelled shrinkage agent for stratum treatment is prepared from the following substances (by weight): 30-55% of an organic polymer, 8-20% of inorganic salt, 2-8% of a fluorocarbon surfactant and the rest of water. The sum of weight percentages of the above substances is 100%. The prepared efficient anti-swelling swelled shrinkage agent for stratum treatment has strong adsorption capacity, good anti-swelling effect and scouring resistance. By the use of the fluorocarbon surfactant, interfacial tension can be reduced, capillary of an oil layer can be effectively dredged, and water locking phenomenon can be prevented. The product can be resistant to high temperature of 300 DEG C, can adapt to the anti-swelling process of low-permeability oil reservoir and has an excellent anti-swelling effect on oil reservoir with abnormal water sensitivity and velocity sensitivity.
Description
Technical field
The present invention relates to Swelling-resistant shrinking and swelling agent field, more particularly to a kind of efficiently anti-swollen swollen formation additive that contracts.
Background technology
Different from onshore oil field, offshore oilfield platform space is narrow, platform operations Spatial General 6 R in 100m2Left and right, such as
Fruit platform beats new well or pump detection and workover, and other work measures cannot be implemented again.Have plus the injection water quality of each water injection well
1. oil-containing is exceeded；2. suspension is exceeded；3. machine is miscellaneous and particle diameter is exceeded；4. various water fillings and stratum water are incompatible the knot for causing
The defect of the aspect such as dirty serious, causes injection pressure rise, when its close formation fracture pressure, it is necessary to reduce injection rate, from
And affect waterflooding development effect.It is that this offshore oilfield typically adopts acidifying breaking block treatment, drops low injection pressure, reaches with fluence.
Because of acidifying solution is bottom blocking, and the clay material to having occurred and that hydration swelling needs to add Swelling-resistant shrinking and swelling agent to receive it
Contracting.
The research of domestic anti-clayswelling agent experienced inorganic salts, inorganic many nuclear polymers and cationic surfactant,
The research experiment of cationic organic polymer three phases.Although inorganic salts expansion-resisting agent price is low, it is simple to adapt to maintenance, it has
The effect phase is short and high volence metal ion is also easy to produce in the earth formation precipitation；Inorganic many nuclear polymer classes mainly have hydroxy Al, zirconyl hydroxy,
Iron carbonyl etc., this kind of clay stabilizer can effectively prevent clay swell and migration, but acid resistance is poor, it is impossible to for carbonate
The high sandstone formation of content.Cationic polymer is current most widely used anti-clayswelling agent, but it easily causes hygroscopicity
Sandstone surface wettability reversal.Cationic polymer is divided into macrocation polymer and small cation polymerization by its chain length and molecular weight
Thing.Macrocation polymer is on the one hand because strand is longer, and molecular weight is larger, so as to limit its answering in low permeability oil field
With, on the other hand small bits of clay is arrested, winding effect, easily formed produce compared with buckshot aggregate stratum venturi it is irreversible stifled
Plug.Therefore macrocation polymer can be used for the stratum that porosity is big, permeability is high, prudent in low permeability oil field application.It is little
Cationic polymer overcomes the shortcoming of macrocation polymer, and in low permeability oil field application preferably, but preventive effect of expansion is poor, effectively
Phase is short.
The content of the invention
In order to overcome the shortcoming of prior art, it is an object of the invention to provide a kind of high temperature resistant, Waterproof lock phenomenon, anti-swollen
It is laundry-resistant efficiently to prevent the swollen formation additive of swollen contracting.
To reach above-mentioned purpose, on the one hand, the present invention's efficiently prevents the swollen formation additive of swollen contracting, its composition there is provided a kind of
Substance weight percentage includes：The organic polymer of 30%-55%, the inorganic salts of 8%-20%, the fluorocarbon surface of 2%-8% are lived
Property agent and surplus water, each composition substance weight percentage sum is 100%.
The preparation method of described organic polymer is：
1) synthesized micromolecule quaternary ammonium salt cationic polymer：Following weight percents are added (to account for little into first reactor
Molecule quaternary ammonium salt cationic total polymer weight) each component, absolute ethyl alcohol 10%-30%, triethylamine 20%-45%, dense salt
Sour 3%-10%, acetic acid 2%-5%, epoxychloropropane 15%-35%, the water of surplus, stir, and are slowly heated to 70 DEG C,
Reaction 5h, is obtained small molecule quaternary ammonium salt cation polymer；
2) organic polymer is compounded：Following weight percents (occupying machine total polymer weight) are added into second reactor
Each component：Small molecule quaternary ammonium salt cation polymer 40%-60%, the polyalcohols 40%-60% of step 1 synthesis, stirs,
Compounding forms organic polymer.
Described inorganic salts are technical grade purity and the potassium chloride or ammonium chloride of the above, and its their mixture.
On the other hand, present invention also offers a kind of preparation method for efficiently preventing the swollen formation additive of swollen contracting includes following step
Suddenly：
(1) synthesized micromolecule quaternary ammonium salt cationic polymer：Following weight percents are added (to account for little into first reactor
Molecule quaternary ammonium salt cationic total polymer weight) each component, absolute ethyl alcohol 10%-30%, triethylamine 20%-45%, dense salt
Sour 3%-10%, acetic acid 2%-5%, epoxychloropropane 15%-35%, balance of water, stir, and are slowly heated to 70 DEG C,
Reaction 5h, is obtained small molecule quaternary ammonium salt cation polymer；
(2) organic polymer is compounded：Following weight percents are added (to occupy machine total polymer into second reactor
Amount) each component：Small molecule quaternary ammonium salt cation polymer 40%-60%, the polyalcohols 40%-60% of step (1) synthesis, stirring
Uniformly, compounding forms organic polymer；
(3) the swollen formation additive of anti-swollen contracting is compounded：Following weight percents are added (to account for anti-swollen contracting swollen into the 3rd reactor
Formation additive gross weight) each component：Organic polymer 30%-55%, inorganic salts 8%-20%, fluorine prepared by step (2)
The water of carbon surface active agent 2%-8%, surplus, stirs, and obtains the swollen formation additive of anti-swollen contracting；
Preferably, the polyalcohols in step (2) is the polyvinyl alcohol of technical grade and above purity, polyethylene glycol, poly-
Glycolic, and its their mixture；
Preferably, the inorganic salts in step (3) are the potassium chloride or ammonium chloride of technical grade purity and the above, and its
Their mixture.
Beneficial effects of the present invention are as follows：1) the small cation season that the swollen formation additive of anti-swollen contracting that prepared by the present invention is adopted
Ammonium salt polymer positive charge density is high, can form electrostatic neutralization and multiple spot absorption, high adsorption capacity, preventive effect of expansion with clay particle
Good, resistance to erosion, can be resistant to 300 DEG C of high temperature；2) the swollen formation additive of anti-swollen contracting that prepared by the present invention adopts fluorocarbon surfactant
Interfacial tension can be reduced, effectively dredging oil reservoir capillary, can prevent water lock phenomenon from occurring；3) the anti-swollen contracting that prepared by the present invention is swollen
Formation additive can suppress clay swell using inorganic salts；4) the anti-swollen swollen formation additive that contracts of the invention is by small cation quaternary ammonium
The charge neutralization of salt polymer, the suction-operated of polymeric alcohol and the suction-operated of inorganic salts combine, it is possible to increase anti-swollen
Synergy and reduction expansion-resisting agent consumption.
Specific embodiment
Clear, complete description is carried out to technical scheme below in conjunction with embodiment, it is clear that described reality
Apply a part of embodiment that example is the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained on the premise of creative work is not made, belongs to present invention protection
Scope.
Embodiment 1
A kind of efficiently to prevent the swollen formation additive of swollen contracting, its preparation method is comprised the following steps：
(1) synthesized micromolecule quaternary ammonium salt cationic polymer：Following weight percents are added (to account for little into first reactor
Molecule quaternary ammonium salt cationic total polymer weight) each component：10% absolute ethyl alcohol, 20% triethylamine, 3% dense salt
Acid, 2% acetic acid, 15% epoxychloropropane, the water of surplus, stir, and are slowly heated to 70 DEG C, react 5h, are obtained little
Molecule quaternary ammonium salt cationic polymer.
(2) organic polymer is compounded：Following weight percents are added (to occupy machine total polymer into second reactor
Amount) each component：40% the step of (1) synthesis small molecule quaternary ammonium salt cation polymer, and 60% PEG400
(producing with Sheng Tai Chemical Co., Ltd.s in Tianjin), stirs, and compounding forms organic polymer.
(3) the swollen formation additive of anti-swollen contracting is compounded：Following weight percents are added (to account for anti-swollen contracting swollen into the 3rd reactor
Formation additive gross weight) each component：Organic polymer, 8% potassium chloride, 2% fluorine carbon prepared by 30% the step of (2)
Surfactant FS-3100 (E.I.Du Pont Company's production), the water of surplus, stir, and obtain the swollen formation additive of anti-swollen contracting.
Embodiment 2
A kind of efficiently to prevent the swollen formation additive of swollen contracting, its preparation method is comprised the following steps：
(1) synthesis of small molecule quaternary ammonium salt cation polymer：Following weight percents are added (to account for into first reactor
Small molecule quaternary ammonium salt cation total polymer weight) each component:20% absolute ethyl alcohol, 30% triethylamine, 8% dense salt
Acid, 5% acetic acid, 25% epoxychloropropane, the water of surplus, stir, and are slowly heated to 70 DEG C, react 5h, are obtained little
Molecule quaternary ammonium salt cationic polymer.
(2) organic polymer is compounded：Following weight percents are added (to occupy machine total polymer into second reactor
Amount) each component：60% the step of (1) synthesis small molecule quaternary ammonium salt cation polymer, and 40% with arbitrary proportion
The PEG400 (producing with Sheng Tai Chemical Co., Ltd.s in Tianjin) of mixing and polyglycolic acid (Shenzhen that molecular weight is 8000
Bo Li biomaterials Co., Ltd produces), stir, compounding forms organic polymer.
(3) the swollen formation additive of anti-swollen contracting is compounded：Following weight percents are added (to account for anti-swollen contracting swollen into the 3rd reactor
Formation additive gross weight) each component：Organic polymer, 20% ammonium chloride, 8% fluorine prepared by 55% the step of (2)
Carbon surface active agent FS-3100 (E.I.Du Pont Company's production), the water of surplus, stir, and obtain the swollen formation additive of anti-swollen contracting.
Tested using Swelling-resistant shrinking and swelling agent obtained in embodiment 1 and 2, experiment content：
1st, swollen experiment is prevented
0.50g sodium bentonites are weighed with electronic balance (sensibility reciprocal is 0.01g), precisely to 0.01g, loads 10mL centrifuge tubes
In, 10mL kerosene is added, fully shake up, 24h is deposited at room temperature, load centrifuge, the centrifugation in the case where rotating speed is 1500r/m
15min, reads volume V of sodium bentonite0。
Two parts of 0.50g sodium bentonites are weighed, precisely to 0.01g, is respectively placed in high temperature high pressure enclosed reactor, added successively
Enter distilled water 10mL, 4% expansion-resisting agent sample aqueous solution 10mL, fully shake up mixing, be put into temperature (300 ± 1) DEG C freeze-day with constant temperature
24h is stood in case, room temperature is naturally cooled to.Clay mixed liquor in high temperature high pressure enclosed reactor is proceeded into respectively two differences
Centrifuge tube in, load centrifuge, the centrifugation 15min in the case where rotating speed is 1500r/min reads bentonitic volume Vm、V1。
Anti-dilative presses computing formula：F=(Vm-V1)/(Vm-V0)
In formula：F-anti-dilative；
V0Volume of-the sodium bentonite in kerosene, unit is milliliter (mL)；
VmVolume of-the sodium bentonite in distilled water, unit is milliliter (mL)；
V1Volume of the sodium bentonite in the high temperature antiexpansion aqueous solution before-washing, unit is milliliter (mL)；
Experimental result is as shown in table 1：
The anti-dilative measurement result table of table 1
In this table as can be seen that this efficiently to prevent that the swollen formation additive of swollen contracting is respectively provided with normal temperatures, at high temperature outstanding
Preventive effect of expansion.
2nd, water-fastness rate experiment
Supernatant liquor in the centrifuge tube that the expansion-resisting agent aqueous solution is located is suctioned out, plus distilled water shakes up to 10mL graduation marks,
Stand 24h.Repeat the operation twice, record the final volume V of sodium bentonite in graduated cylinder2。
Anti-dilative computing formula after washing：F2=(Vm-V2)/(Vm-V0) * 100%
Water-fastness rate computing formula：N=F2/F1* 100%
In formula：F1--- anti-dilative；F2--- the anti-dilative after expansion-resisting agent washing；
N --- water-fastness rate；V0--- volume of the sodium bentonite in kerosene, unit is milliliter (mL)；
Vm--- volume of the sodium bentonite in distilled water, unit is milliliter (mL)；
V1--- volume of the sodium bentonite in the high temperature antiexpansion aqueous solution before washing, unit is milliliter (mL)；
V2--- volume of the sodium bentonite in the high temperature antiexpansion aqueous solution after washing, unit is milliliter (mL)
Experimental result is as shown in table 2
The water-fastness rate measurement result table of table 2
In this table as can be seen that this efficiently to prevent that the swollen formation additive of swollen contracting is respectively provided with normal temperatures, at high temperature outstanding
Washing-resistant effect.
Claims (3)
- It is 1. a kind of efficiently to prevent the swollen formation additive of swollen contracting, it is characterised in that：Its component percentage by weight is：30%-55%'s The water of organic polymer, the inorganic salts of 8%-20%, the fluorocarbon surfactant of 2%-8% and surplus;Each composition substance weight percentage sum is 100%;The preparation method of described organic polymer is：Synthesized micromolecule quaternary ammonium salt cationic polymer：Following weight percents are added into first reactor（Account for small molecule season Ammonium salt cationic polymer gross weight）Each component：Absolute ethyl alcohol 10%-30%, triethylamine 20%-45%, concentrated hydrochloric acid 3%-10%, second Sour 2%-5%, epoxychloropropane 15%-35%, the water of surplus, stir, and are slowly heated to 70 DEG C, react 5h, and small molecule is obtained Quaternary ammonium salt cationic polymer;Compounding organic polymer：The each component of following weight percents is added into second reactor：The small molecule quaternary ammonium of synthesis Salt cation polymer 40%-60%, polyalcohols 40%-60%, stir, and compounding forms organic polymer；Described inorganic salts are potassium chloride, ammonium chloride, and its their mixture.
- 2. the swollen formation additive preparation method of swollen contracting is efficiently prevented described in a kind of claim 1, it is characterised in that including following step Suddenly：（1）Synthesized micromolecule quaternary ammonium salt cationic polymer：The each component of following weight percents is added into first reactor： It is absolute ethyl alcohol 10%-30%, triethylamine 20%-45%, concentrated hydrochloric acid 3%-10%, acetic acid 2%-5%, epoxychloropropane 15%-35%, balance of Water, stirs, and is slowly heated to 70 DEG C, reacts 5h, and small molecule quaternary ammonium salt cation polymer is obtained;（2）Compounding organic polymer：The each component of following weight percents is added into second reactor：Step（1）Synthesis Small molecule quaternary ammonium salt cation polymer 40%-60%, polyalcohols 40%-60%, stir, and compounding forms organic polymer；（3）The anti-swollen swollen formation additive that contracts of compounding：The each component of following weight percents is added into the 3rd reactor：Step （2）The organic polymer 30%-55% of preparation, inorganic salts 8%-20%, fluorocarbon surfactant 2%-8%, the water of surplus, stirring is equal It is even, obtain the swollen formation additive of anti-swollen contracting.
- 3. preparation method according to claim 2, it is characterised in that step（2）Described in polyalcohols be polyvinyl alcohol, poly- Ethylene glycol, polyglycolic acid, and its their mixture.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107573909A (en) * | 2017-09-20 | 2018-01-12 | 中国石油集团渤海钻探工程有限公司 | A kind of mud shale surface hydration inhibitor and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066283A (en) * | 1991-04-30 | 1992-11-18 | 中国科学院化学研究所 | The novel treatment agent of fine migration in the inhibited oil gas-bearing formation |
| CN103396782A (en) * | 2013-07-12 | 2013-11-20 | 中国石油天然气股份有限公司 | anti-swelling agent for acidification and preparation method thereof |
| CN103539902A (en) * | 2012-07-11 | 2014-01-29 | 中国石油化工股份有限公司 | Preparation method of high temperature resistant contraction-expansion system for promoting stratum clay modification |
| CN103773353A (en) * | 2014-02-21 | 2014-05-07 | 亿城淄博石油陶粒制造有限公司 | Clay stabilizer for water base fracturing as well as preparation method and application thereof |
| CN104212429A (en) * | 2014-08-11 | 2014-12-17 | 东北石油大学 | Anti-swelling and swelling shrinkage agent and preparation method thereof |
| CN104371687A (en) * | 2014-12-05 | 2015-02-25 | 陕西延长石油油田化学科技有限责任公司 | Clay stabilizer for oil fields |
| CN104449627A (en) * | 2014-11-07 | 2015-03-25 | 中国石油化工股份有限公司 | Oil reservoir protection accelerator and preparation method thereof |
| CN105198757A (en) * | 2015-10-15 | 2015-12-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Small cationic bisquaternary ammonium salt clay stabilizer and preparation method thereof |
| CN105441060A (en) * | 2014-08-11 | 2016-03-30 | 中国石油天然气股份有限公司 | Anti-swelling cleanup additive and preparation method thereof |
| CN105623636A (en) * | 2014-10-27 | 2016-06-01 | 中国石油天然气股份有限公司 | Anti-swelling and anti-shrinking agent, preparation method and application thereof |
-
2016
- 2016-10-20 CN CN201610914101.9A patent/CN106675531A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066283A (en) * | 1991-04-30 | 1992-11-18 | 中国科学院化学研究所 | The novel treatment agent of fine migration in the inhibited oil gas-bearing formation |
| CN103539902A (en) * | 2012-07-11 | 2014-01-29 | 中国石油化工股份有限公司 | Preparation method of high temperature resistant contraction-expansion system for promoting stratum clay modification |
| CN103396782A (en) * | 2013-07-12 | 2013-11-20 | 中国石油天然气股份有限公司 | anti-swelling agent for acidification and preparation method thereof |
| CN103773353A (en) * | 2014-02-21 | 2014-05-07 | 亿城淄博石油陶粒制造有限公司 | Clay stabilizer for water base fracturing as well as preparation method and application thereof |
| CN104212429A (en) * | 2014-08-11 | 2014-12-17 | 东北石油大学 | Anti-swelling and swelling shrinkage agent and preparation method thereof |
| CN105441060A (en) * | 2014-08-11 | 2016-03-30 | 中国石油天然气股份有限公司 | Anti-swelling cleanup additive and preparation method thereof |
| CN105623636A (en) * | 2014-10-27 | 2016-06-01 | 中国石油天然气股份有限公司 | Anti-swelling and anti-shrinking agent, preparation method and application thereof |
| CN104449627A (en) * | 2014-11-07 | 2015-03-25 | 中国石油化工股份有限公司 | Oil reservoir protection accelerator and preparation method thereof |
| CN104371687A (en) * | 2014-12-05 | 2015-02-25 | 陕西延长石油油田化学科技有限责任公司 | Clay stabilizer for oil fields |
| CN105198757A (en) * | 2015-10-15 | 2015-12-30 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Small cationic bisquaternary ammonium salt clay stabilizer and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刘立新等: "小阳离子聚合物—聚乙二醇协同防膨作用研究", 《化工科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107573909A (en) * | 2017-09-20 | 2018-01-12 | 中国石油集团渤海钻探工程有限公司 | A kind of mud shale surface hydration inhibitor and preparation method thereof |
| CN107573909B (en) * | 2017-09-20 | 2019-07-23 | 中国石油集团渤海钻探工程有限公司 | A kind of mud shale surface hydration inhibitor and preparation method thereof |
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Application publication date: 20170517 |