CN116463114A - Preparation method and application of thickened oil viscosity reducer - Google Patents
Preparation method and application of thickened oil viscosity reducer Download PDFInfo
- Publication number
- CN116463114A CN116463114A CN202310268658.XA CN202310268658A CN116463114A CN 116463114 A CN116463114 A CN 116463114A CN 202310268658 A CN202310268658 A CN 202310268658A CN 116463114 A CN116463114 A CN 116463114A
- Authority
- CN
- China
- Prior art keywords
- oil viscosity
- viscosity reducer
- preparation
- stirring
- thick oil
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 41
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 38
- 238000003756 stirring Methods 0.000 claims abstract description 39
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 25
- 239000000194 fatty acid Substances 0.000 claims abstract description 25
- 229930195729 fatty acid Natural products 0.000 claims abstract description 25
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 22
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 20
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000004021 humic acid Substances 0.000 claims abstract description 16
- 239000003054 catalyst Substances 0.000 claims abstract description 15
- 230000003197 catalytic effect Effects 0.000 claims abstract description 15
- YGZSVWMBUCGDCV-UHFFFAOYSA-N chloro(methyl)silane Chemical compound C[SiH2]Cl YGZSVWMBUCGDCV-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- -1 fluorocarbon siloxane Chemical class 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 150000001879 copper Chemical class 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 3
- 239000007788 liquid Substances 0.000 abstract description 15
- 150000003839 salts Chemical class 0.000 abstract description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 7
- 239000011575 calcium Substances 0.000 abstract description 7
- 229910052791 calcium Inorganic materials 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 231100000956 nontoxicity Toxicity 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 7
- 239000003208 petroleum Substances 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 34
- 230000008569 process Effects 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229940071160 cocoate Drugs 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000005376 alkyl siloxane group Chemical group 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
-
- 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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
- C09K8/584—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific surfactants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/17—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by mixing with another liquid, i.e. diluting
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Silicon Polymers (AREA)
Abstract
The invention relates to the technical field of petroleum gathering and transportation, and discloses a preparation method of a thickened oil viscosity reducer, which comprises the following steps: s1: preparing materials: preparing a base solution, an auxiliary agent, fatty acid amide and humic acid; s2: stirring: placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 35-45 ℃ for stirring treatment, then gradually adding humic acid, heating to 150-180 ℃, and continuing stirring for 15 minutes; s3: preparation: and S2, after stirring, injecting air, continuously heating to 150-180 ℃, and finally performing catalytic oxidation to obtain the thick oil viscosity reducer, wherein the weight part of the base liquid is 45-55 parts, and the base liquid consists of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane. The thick oil viscosity reducer prepared by the invention has the characteristics of wide application range, high viscosity reduction rate and low aging degree, and simultaneously has the characteristics of high temperature resistance, salt resistance, calcium resistance, high mechanical drilling rate improvement, long maintenance period, no toxicity and no pollution.
Description
Technical Field
The invention relates to the technical field of petroleum gathering and transportation, in particular to a preparation method and application of a thick oil viscosity reducer.
Background
With the continuous exploitation of petroleum, the proportion of thickened oil in the ascertained petroleum resources is larger and larger, and the thickened oil becomes an important substitute of the petroleum resources under the situation of shortage of the world thin oil resources. In the gathering and transportation process, the characteristics of high density, high viscosity and poor fluidity bring great difficulty to development and application along with the increase of the thick oil production. Therefore, the advancement and economy of the thick oil gathering and transportation technology directly influence the comprehensive economic and technical index of crude oil production.
For a long time, the thick oil is continuously researched at home and abroad, but after the thick oil is prepared in the prior art, the thick oil cannot be continuously under a high-temperature environment, so that the research performance of the thick oil is not good enough.
Therefore, we propose a preparation method and application of the thick oil viscosity reducer to solve the problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a preparation method and application of a thickened oil viscosity reducer, and solves the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the preparation method of the thick oil viscosity reducer comprises the following steps:
s1: preparation of materials
Preparing a base solution, an auxiliary agent, fatty acid amide and humic acid;
s2: stirring
Placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 35-45 ℃ for stirring treatment, then gradually adding humic acid, heating to 150-180 ℃, and continuing stirring for 15 minutes;
s3: preparation
And S2, after stirring, injecting air, continuously heating to 150-180 ℃, and finally carrying out catalytic oxidation to obtain the thick oil viscosity reducer.
Preferably, the weight portion of the base liquid is 45-55 portions, and the base liquid is composed of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorinated alkyl siloxane.
Preferably, the polyacrylonitrile is modified to be water-soluble.
Preferably, the specific preparation steps of the base liquid are as follows:
a1: mixing methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane together, stirring for 15 minutes, and standing for 10 minutes;
a2: after standing in the step a1, reacting in a heating and pressurizing mode to obtain a base solution
Preferably, the weight portion of the auxiliary agent is 1-5 portions, and sodium hydroxide is adopted as the auxiliary agent.
Preferably, the weight part of the fatty acid amide is 5-15 parts, and the fatty acid amide adopts coco copper salt.
Preferably, the pressure of the injected air in the step S2 is 1-2 MPa, and the catalytic oxidation time is controlled to be 8-15 h.
Preferably, the thickened oil viscosity reducer is used for reducing thickened oil with the viscosity of 20000-35000 mPa.s.
Compared with the prior art, the invention provides a preparation method and application of a thickened oil viscosity reducer, and the preparation method has the following beneficial effects:
1. the preparation method has the advantages of simple and single process, no complexity, and low cost of raw materials adopted in the preparation.
2. The thick oil viscosity reducer prepared by the invention has the characteristics of wide application range, high viscosity reduction rate and low aging degree, and simultaneously has the characteristics of high temperature resistance, salt resistance, calcium resistance, high mechanical drilling rate improvement, long maintenance period, no toxicity and no pollution.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
The preparation method of the thick oil viscosity reducer comprises the following steps:
s1: preparation of materials
Preparing a base solution: 45 parts of auxiliary agent: 1 part of fatty acid amide: 5 parts of humic acid;
s2: stirring
Placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 40 ℃ for stirring treatment, then gradually adding humic acid, heating to 160 ℃, and continuing stirring for 15 minutes;
s3: preparation
And S2, after stirring, injecting air, continuously heating to 160 ℃, and finally carrying out catalytic oxidation to obtain the thick oil viscosity reducer.
In the embodiment, the base liquid is composed of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorohydrocarbon siloxane, and the specific preparation steps of the base liquid are as follows:
a1: mixing methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane together, stirring for 15 minutes, and standing for 10 minutes;
a2: and a1, after standing, reacting in a heating and pressurizing mode, and finally preparing the base solution.
Further, polyacrylonitrile is modified to be dissolved in water.
Still further, the fatty acid amide is a copper cocoate salt.
Furthermore, the pressure of the injected air in the step S2 is 1-2 MPa, and the catalytic oxidation time is controlled to be 8-15 h.
To sum up: the process is simple and simple, and is not complex, and the prepared thick oil viscosity reducer has the characteristics of wide application range, high viscosity reduction rate and low aging degree, and simultaneously has the characteristics of high temperature resistance, salt resistance, calcium resistance, high mechanical drilling speed, long maintenance period, no toxicity and no pollution.
Examples
The preparation method of the thick oil viscosity reducer comprises the following steps:
s1: preparation of materials
Preparing a base solution: 55 parts of auxiliary agent: 5 parts of fatty acid amide: 15 parts of humic acid;
s2: stirring
Placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 40 ℃ for stirring treatment, then gradually adding humic acid, heating to 160 ℃, and continuing stirring for 15 minutes;
s3: preparation
And S2, after stirring, injecting air, continuously heating to 160 ℃, and finally carrying out catalytic oxidation to obtain the thick oil viscosity reducer.
In the embodiment, the base liquid is composed of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorohydrocarbon siloxane, and the specific preparation steps of the base liquid are as follows:
a1: mixing methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane together, stirring for 15 minutes, and standing for 10 minutes;
a2: and a1, after standing, reacting in a heating and pressurizing mode, and finally preparing the base solution.
Further, polyacrylonitrile is modified to be dissolved in water.
Still further, the fatty acid amide is a copper cocoate salt.
Furthermore, the pressure of the injected air in the step S2 is 1-2 MPa, and the catalytic oxidation time is controlled to be 8-15 h.
To sum up: the process is simple and simple, and is not complex, and the prepared thick oil viscosity reducer has the characteristics of wide application range, high viscosity reduction rate and low aging degree, and simultaneously has the characteristics of high temperature resistance, salt resistance, calcium resistance, high mechanical drilling speed, long maintenance period, no toxicity and no pollution.
Examples
The preparation method of the thick oil viscosity reducer comprises the following steps:
s1: preparation of materials
Preparing a base solution: 48 parts of an auxiliary agent: 2 parts of fatty acid amide: 8 parts of humic acid;
s2: stirring
Placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 40 ℃ for stirring treatment, then gradually adding humic acid, heating to 160 ℃, and continuing stirring for 15 minutes;
s3: preparation
And S2, after stirring, injecting air, continuously heating to 160 ℃, and finally carrying out catalytic oxidation to obtain the thick oil viscosity reducer.
In the embodiment, the base liquid is composed of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorohydrocarbon siloxane, and the specific preparation steps of the base liquid are as follows:
a1: mixing methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane together, stirring for 15 minutes, and standing for 10 minutes;
a2: and a1, after standing, reacting in a heating and pressurizing mode, and finally preparing the base solution.
Further, polyacrylonitrile is modified to be dissolved in water.
Still further, the fatty acid amide is a copper cocoate salt.
Furthermore, the pressure of the injected air in the step S2 is 1-2 MPa, and the catalytic oxidation time is controlled to be 8-15 h.
To sum up: the process is simple and simple, and is not complex, and the prepared thick oil viscosity reducer has the characteristics of wide application range, high viscosity reduction rate and low aging degree, and simultaneously has the characteristics of high temperature resistance, salt resistance, calcium resistance, high mechanical drilling speed, long maintenance period, no toxicity and no pollution.
Examples
The preparation method of the thick oil viscosity reducer comprises the following steps:
s1: preparation of materials
Preparing a base solution: 50 parts of an auxiliary agent: 3 parts of fatty acid amide: 10 parts of humic acid;
s2: stirring
Placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 40 ℃ for stirring treatment, then gradually adding humic acid, heating to 160 ℃, and continuing stirring for 15 minutes;
s3: preparation
And S2, after stirring, injecting air, continuously heating to 160 ℃, and finally carrying out catalytic oxidation to obtain the thick oil viscosity reducer.
In the embodiment, the base liquid is composed of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorohydrocarbon siloxane, and the specific preparation steps of the base liquid are as follows:
a1: mixing methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane together, stirring for 15 minutes, and standing for 10 minutes;
a2: and a1, after standing, reacting in a heating and pressurizing mode, and finally preparing the base solution.
Further, polyacrylonitrile is modified to be dissolved in water.
Still further, the fatty acid amide is a copper cocoate salt.
Furthermore, the pressure of the injected air in the step S2 is 1-2 MPa, and the catalytic oxidation time is controlled to be 8-15 h.
To sum up: the process is simple and simple, and is not complex, and the prepared thick oil viscosity reducer has the characteristics of wide application range, high viscosity reduction rate and low aging degree, and simultaneously has the characteristics of high temperature resistance, salt resistance, calcium resistance, high mechanical drilling speed, long maintenance period, no toxicity and no pollution.
Examples
The preparation method of the thick oil viscosity reducer comprises the following steps:
s1: preparation of materials
Preparing a base solution: 52 parts of auxiliary agent: 4 parts of fatty acid amide: 13 parts of humic acid;
s2: stirring
Placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 40 ℃ for stirring treatment, then gradually adding humic acid, heating to 160 ℃, and continuing stirring for 15 minutes;
s3: preparation
And S2, after stirring, injecting air, continuously heating to 160 ℃, and finally carrying out catalytic oxidation to obtain the thick oil viscosity reducer.
In the embodiment, the base liquid is composed of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorohydrocarbon siloxane, and the specific preparation steps of the base liquid are as follows:
a1: mixing methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane together, stirring for 15 minutes, and standing for 10 minutes;
a2: and a1, after standing, reacting in a heating and pressurizing mode, and finally preparing the base solution.
Further, polyacrylonitrile is modified to be dissolved in water.
Still further, the fatty acid amide is a copper cocoate salt.
Furthermore, the pressure of the injected air in the step S2 is 1-2 MPa, and the catalytic oxidation time is controlled to be 8-15 h.
To sum up: the process is simple and simple, and is not complex, and the prepared thick oil viscosity reducer has the characteristics of wide application range, high viscosity reduction rate and low aging degree, and simultaneously has the characteristics of high temperature resistance, salt resistance, calcium resistance, high mechanical drilling speed, long maintenance period, no toxicity and no pollution.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The preparation method of the thick oil viscosity reducer is characterized by comprising the following steps of:
s1: preparation of materials
Preparing a base solution, an auxiliary agent, fatty acid amide and humic acid;
s2: stirring
Placing the base solution, the auxiliary agent and the fatty acid amide into a reaction kettle with the internal temperature of 35-45 ℃ for stirring treatment, then gradually adding humic acid, heating to 150-180 ℃, and continuing stirring for 15 minutes;
s3: preparation
And S2, after stirring, injecting air, continuously heating to 150-180 ℃, and finally carrying out catalytic oxidation to obtain the thick oil viscosity reducer.
2. The preparation method of the thick oil viscosity reducer according to claim 1, wherein the weight part of the base fluid is 45-55 parts, and the base fluid is composed of methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorohydrocarbon siloxane.
3. The method for preparing a thickened oil viscosity reducer according to claim 2, wherein the polyacrylonitrile is modified and dissolved in water.
4. The preparation method of the thick oil viscosity reducer according to claim 2, wherein the specific preparation steps of the base fluid are as follows:
a1: mixing methyl chlorosilane, polyacrylonitrile, an organotin catalyst and fluorocarbon siloxane together, stirring for 15 minutes, and standing for 10 minutes;
a2: and a1, after standing, reacting in a heating and pressurizing mode, and finally preparing the base solution.
5. The method for preparing the thick oil viscosity reducer according to claim 1, which is characterized in that: the weight portion of the auxiliary agent is 1-5 portions, and sodium hydroxide is adopted as the auxiliary agent.
6. The method for preparing the thick oil viscosity reducer according to claim 1, which is characterized in that: the weight portion of the fatty acid amide is 5-15 portions, and the fatty acid amide adopts coco copper salt.
7. The method for preparing the thick oil viscosity reducer according to claim 1, which is characterized in that: and S2, the pressure of the injected air in the step is 1-2 MPa, and the catalytic oxidation time is controlled to be 8-15 h.
8. The use of a thickened oil viscosity reducer according to claim 1, characterized in that the thickened oil viscosity reducer is used for reducing thickened oil with a viscosity of 20000-35000 mPa-s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310268658.XA CN116463114A (en) | 2023-03-20 | 2023-03-20 | Preparation method and application of thickened oil viscosity reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310268658.XA CN116463114A (en) | 2023-03-20 | 2023-03-20 | Preparation method and application of thickened oil viscosity reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116463114A true CN116463114A (en) | 2023-07-21 |
Family
ID=87177918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310268658.XA Pending CN116463114A (en) | 2023-03-20 | 2023-03-20 | Preparation method and application of thickened oil viscosity reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116463114A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350047A (en) * | 2000-10-25 | 2002-05-22 | 宋福如 | High-temperature viscosity reducer for drilling fluid and its production process |
| CN110628406A (en) * | 2019-09-26 | 2019-12-31 | 天津龙净环保科技有限公司 | Thick oil viscosity reducer and production equipment thereof |
| CN111763509A (en) * | 2019-04-01 | 2020-10-13 | 中国石油化工股份有限公司 | Thick oil viscosity reducer and preparation method thereof |
-
2023
- 2023-03-20 CN CN202310268658.XA patent/CN116463114A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1350047A (en) * | 2000-10-25 | 2002-05-22 | 宋福如 | High-temperature viscosity reducer for drilling fluid and its production process |
| CN111763509A (en) * | 2019-04-01 | 2020-10-13 | 中国石油化工股份有限公司 | Thick oil viscosity reducer and preparation method thereof |
| CN110628406A (en) * | 2019-09-26 | 2019-12-31 | 天津龙净环保科技有限公司 | Thick oil viscosity reducer and production equipment thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101603118B (en) | Light-color quenching oil complexing agent composition and preparation method thereof | |
| CN111826150B (en) | High-temperature-resistant viscosity-reduction oil displacement agent for thick oil steam chemical flooding and preparation method and application thereof | |
| CN101397492B (en) | Heatproof oil well cement fluid loss additive and preparation method thereof | |
| CN101993769A (en) | Complex lithium base grease and preparation method thereof | |
| CN101081976A (en) | Fire-resistant non-injury fracturing fluid thickening agent and preparation method and usage thereof | |
| CN108424762B (en) | Self-suspending proppant for hydraulic fracturing and preparation method thereof | |
| CN116463114A (en) | Preparation method and application of thickened oil viscosity reducer | |
| CN109439386B (en) | Environment-friendly degradable trace lubricating oil and preparation method thereof | |
| CN108485625B (en) | Anionic nonionic surfactant thickened oil viscosity-reducing oil displacement agent and preparation method and application thereof | |
| CN100362082C (en) | Method for preparing biological diesel oil by utilizing animal oil | |
| CN111763509B (en) | Thick oil viscosity reducer and preparation method thereof | |
| CN114350418A (en) | Low-volatility methanol gasoline and preparation method thereof | |
| CN115466608A (en) | Efficient oil-based paraffin removal and prevention agent and preparation method thereof | |
| CN111068784A (en) | Preparation method and application of lignin ligand hexahedral iron-based catalyst | |
| CN117447648B (en) | Thickened oil viscosity reducer and preparation method thereof | |
| CN108690596B (en) | Crosslinking accelerator for hydrocarbon anhydrous fracturing fluid and hydrocarbon anhydrous fracturing fluid | |
| CN115873575B (en) | Viscosity reducer for thickened oil viscosity reduction cold recovery huff and puff and preparation method thereof | |
| CN118146446B (en) | Fracturing fluid thickener and preparation method thereof | |
| CN114181364B (en) | Combined polyether for high-strength high-density low-reaction heat polyurethane cushion block, preparation method of combined polyether, polyurethane cushion block and preparation method of polyurethane cushion block | |
| CN115109635B (en) | Water-based reducing lubricating liquid and preparation method thereof | |
| CN116120903B (en) | Bio-based polymer and preparation method and application thereof | |
| CN112342052B (en) | Low-temperature composite demulsifier for crude oil and preparation method thereof | |
| CN109593519B (en) | Catalytic viscosity reducer for in-situ combustion and application thereof | |
| CN102942690B (en) | Polyoxy propane diethylene glycol borate polymer, preparation method thereof and environment-friendly water-soluble anti-rust quenching liquid prepared with polymer | |
| CN117487060A (en) | Organosilicon carboxylic polymer viscosity reducer for water-based drilling fluid and preparation method 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 |