CN105694830B - A kind of organic salt drilling fluid - Google Patents
A kind of organic salt drilling fluid Download PDFInfo
- Publication number
- CN105694830B CN105694830B CN201610144768.5A CN201610144768A CN105694830B CN 105694830 B CN105694830 B CN 105694830B CN 201610144768 A CN201610144768 A CN 201610144768A CN 105694830 B CN105694830 B CN 105694830B
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- organic salt
- parts
- acrylamide
- sealing agent
- 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.)
- Active
Links
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
- C09K8/02—Well-drilling compositions
- C09K8/04—Aqueous well-drilling compositions
- C09K8/14—Clay-containing compositions
- C09K8/18—Clay-containing compositions characterised by the organic compounds
- C09K8/22—Synthetic organic compounds
- C09K8/24—Polymers
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/10—Nanoparticle-containing well treatment 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
- 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
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Lubricants (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention discloses a kind of organic salt drilling fluids, bentonite including 1 4%, 0.3 0.5% sodium carbonate, 0.5 1% sodium hydroxide, 0.3 1% xanthans, 2 8% fluid loss additive, 2 5% nanometer sealing agent, 1 4% sealing agent, 0.5 4% lubricant, 40 60% organic salts, 25 250% inertia heavy weight additives, the nanometer sealing agent are copolymerized for methyl methacrylate base caged oligomeric silsesquioxane, N N-isopropylacrylamides and acrylamide；The lubricant is castor oil polyoxyethylene ether, polyethylene glycol, polyvinylpyrrolidone compound, which has good thermal stability, and filter loss is low, strong sealing characteristics, strong greasy property, is especially suitable for shale gas well development.
Description
Technical field
The present invention relates to petroleum gas field, more particularly to a kind of organic salt drilling fluid.
Background technology
Development with domestic and international petroleum industry and the continuous growth to oil demand, shale gas, which develops and uses, gradually to be increased
More, the exploitation of shale gas at present mainly uses oil base drilling fluid.Oil base drilling fluid seal-off effect is strong, and lubricity is good, in shale gas well
Exploration and development in extensive use.But oil base drilling fluid have it is of high cost, the problems such as to stratum and environmental pollution.If it uses
Common water-base drilling fluid, since mud shale stratum cranny development, water sensitivity are strong, contacted with water-base drilling fluid easily cause leakage,
It collapses, in addition in shale gas drilling well due to extended horizontal depth, the problems such as poor lubricity and poor large rock-carrying ability can be brought.It is organic
Salt drilling fluid with its efficiently, low toxicity the advantages of be widely used, achieve extraordinary effect, organic salt drilling fluid
Performance is stablized, and contamination resistance is strong, and inhibition is strong.It is general but since shale gas mud shale stratum cranny development, water sensitivity are strong
The sealing characteristics of logical organic salt drilling fluid still can not meet.In addition shale gas well horizontal segment has cave in week in general
Phase, therefore fast drilling is particularly significant, the greasy property of common organic salt drilling fluid is also required to improve.
Invention content
The object of the present invention is to provide a kind of organic salt drilling fluid, the drilling fluid have good thermal stability, lubricity,
Seal-off effect and leak-off are developed available for shale gas.
The present invention is achieved through the following technical solutions：
A kind of organic salt drilling fluid, the sodium carbonate of bentonite, 0.3-0.5% including 1-4%, the hydroxide of 0.5-1%
Sodium, the xanthans of 0.3-1%, the fluid loss additive of 2-8%, the nanometer sealing agent of 2-5%, the sealing agent of 1-4%, 0.5-4%
Lubricant, 40-60% organic salts, 25-250% inertia heavy weight additives, the content of the above components in terms of the quality of water,
The fluid loss additive for n-isopropyl acrylamide and acrylamide, n-vinyl pyrrolidone, 2- acrylamides-
The one or more of 2- methyl propane sulfonic acids are copolymerized.The fluid loss additive has certain Thermo-sensitive, water at normal temperature dissolubility
Good, solution viscosity is relatively low, is easy to situ configuration glue, and into after well head, underground high temperature causes hydrophobic segment to be analysed from solution
Go out, generate intramolecular and Interpolymer Association, suspension and the saline-alkaline tolerance of drilling fluid can be kept, and preparation process is simple, is easy to
Industrialized production.
Further, the parts by weight of n-isopropyl acrylamide are 15-35 in the fluid loss additive；The acrylamide,
N-vinyl pyrrolidone, one or more of parts by weight of 2- acrylamide-2-methyl propane sulfonics are 5-25.
The preparation method of the fluid loss additive, includes the following steps：
By the acrylamide, n-vinyl pyrrolidone, the one or more of 2- acrylamide-2-methyl propane sulfonics
It is dissolved in deionized water, after stirring and dissolving, adds in suitable NaOH, adjust pH value of water solution to 9-11, then add in N- isopropyls
Base acrylamide after being completely dissolved, under nitrogen protection, is slowly added to initiator, 60-80 DEG C of heating is reacted 4-6 hours, obtained
Glue is then dried, and is crushed, and obtains the fluid loss additive.
In above-mentioned preparation process, the deionized water of addition, the mass parts of initiator are as follows：
Deionized water：100,
Initiator： 0.05-1.
It is different that the initiator includes ammonium persulfate, potassium peroxydisulfate, benzoyl peroxide, azodiisobutyronitrile, azo two
Heptonitrile, azo diisobutyl amidine dihydrochloride or its arbitrary two or more mixture.
The nanometer sealing agent for methyl methacrylate base caged oligomeric silsesquioxane, n-isopropyl acrylamide and
Acrylamide is copolymerized.The agent structure of methyl methacrylate base caged oligomeric silsesquioxane is oligomeric silsesquioxane
Alkane is hexahedron nanostructured, can enter the micropore on stratum and microcrack plays plugging effect.N-isopropyl acrylamide by
There are hydrophilic amide groups and hydrophobic isopropyl simultaneously in intramolecular, make its homopolymer that there is temperature sensitivity, critical
Solution temperature (40-65 DEG C) is hereinafter, be dissolved in water, convenient for preparing drilling fluid；It is more than critical-temperature, the polar group in macromolecular chain
Degree of hydration is reduced, and hydrophobic segment is precipitated from solution, is generated intramolecular and Interpolymer Association, in gel, can be attached to well
Wall equally plays and blocks anti-collapse effect.Meanwhile contain a large amount of amide in N- isopropyls and amide and acrylamide molecules chain
Base, amide groups can interact with clay particle and stratum, and entire sealing agent is made to be adsorbed in clay particle and surface of stratum, is prevented
Anti-avulsion is fallen.Methyl methacrylate base caged oligomeric silsesquioxane, n-isopropyl acrylamide and acrylamide three collaboration
Effect imparts inorganic agent and blocks anti-collapse performance.Further, since the cage structure of oligomeric silsesquioxane is rigidly extremely strong, body
Product is larger, and the macromolecular being made from it is not susceptible to decompose under high temperature and environment with high salt and strand is rolled up, therefore product
With good temperature resistance and salt resistance effect, the shut-off capacity of drilling fluid is improved, enhances borehole wall stability.
Further, the nanometer sealing agent is low by 1-8 parts in parts by weight of methyl methacrylate base caged
Polysilsesquioxane, 5-15 parts of n-isopropyl acrylamide, 14-22 parts of acrylamide acrylamide is in the effect of initiator
Lower copolymerization, the copolymer obtained after being then dried.
The preparation method of the nanometer sealing agent, includes the following steps：
By methyl methacrylate base caged oligomeric silsesquioxane, n-isopropyl acrylamide and the acrylamide
It adds in deionized water, stirs evenly；50-60 DEG C is heated to, under nitrogen protection, initiator is slowly added to, reacts 4-6
Hour, glue is obtained, then dries pulverizing, obtain the organic salt drilling fluid nanometer sealing agent.
In above-mentioned preparation method, the deionized water of addition and the mass parts of initiator are as follows：
Deionized water：55-80,
Initiator： 0.05-2.
The initiator is selected from following any one or two or more mixtures：Ammonium persulfate, potassium peroxydisulfate, azo
Diisobutyl amidine dihydrochloride.
The lubricant is castor oil polyoxyethylene ether, polyethylene glycol, polyvinylpyrrolidone compound.Polyethylene
Pyrrolidones contains intramolecular amide bond, can effectively adsorb on clay mineral surface, form one layer of hydrophobic membrane, with cloud point effect occurs
Castor oil polyoxyethylene ether, the polyethylene glycol answered interact, and form " metal-oil film-hydrophobic membrane-borehole wall " multilayer lubrication machine
System further reduces frictional resistance in drilling process, and the lubricant has temperature sensitive effect in organic salt drilling fluid system, when organic
When salt drilling fluid is stood, temperature is low, and lubricant can be dissolved in drilling fluid, plays the role of emulsion dispersion, improves oil-soluble processing
The dispersibility of agent improves drilling fluid rheology and suspending power；In drilling process, temperature raising, castor oil polyoxyethylene
Ether, polyethylene glycol are precipitated from organic drilling fluid system, increase system lubricity；
Further, the lubricant is counts 5-10 parts of castor oil polyoxyethylene ethers, 40-70 parts of poly- second two in parts by weight
Alcohol, 20-40 a part polyvinylpyrrolidone compound.
The preparation method of the lubricant is implemented as follows：
1) polyethylene glycol, polyvinylpyrrolidone are added in double-spiral conical mixer, stirs 1-2h at room temperature；
2) castor oil polyoxyethylene ether is added in, stirs 1-2h at room temperature to get the lubricant.
The sealing agent is at least one of sulfonated gilsonite, oxidized asphalt, bitumen, emulsified asphalt；
Mixture of the organic salt for one or more of alkali metal low-carbon-organic salt；
Further, the organic salt is at least one of sodium formate, potassium formate and cesium formate.
The inertia heavy weight additive is barite or ilmenite powder.
Beneficial effects of the present invention have good thermal stability for the organic salt drilling fluid, and filter loss is low, due to introducing
Novel nanometer sealing agent can effectively block thinner pore throat, have strong sealing characteristics and traditional organic salt drilling fluid
Compared to having the function of preferably to inhibit shale hydration, prevent its expansion, cave in, there is good effect to wellbore stability.This
Invention drilling fluid has strong greasy property, reduces drilling rod frictional resistance, prevents the bit freezing problem in drilling process, be particularly suitable for page
Rock gas well is developed.
Specific embodiment
With reference to specific embodiment, the present invention is further elaborated, and each component content is in terms of the quality of water.
Embodiment 1
A kind of organic salt drilling fluid provided by the invention, including 1% bentonite, 0.3% sodium carbonate, 0.5% hydrogen
Sodium oxide molybdena, 0.3% xanthans, 2% fluid loss additive, 2% nanometer sealing agent, 1% sulfonated gilsonite, 0.5% lubrication
Agent, 40% sodium formate and 100% blanc fixe.
The preparation method of the fluid loss additive is as follows：
5 parts of acrylamides and 5 parts of n-vinyl pyrrolidone and 100 are added in the four-hole bottle equipped with mechanical agitator
Part deionized water, after stirring and dissolving, add in suitable NaOH, adjust pH value of water solution to 9, then add in 15 parts of N- isopropyls
Base acrylamide, after being completely dissolved, under nitrogen protection, be slowly added to 0.05 part ammonium persulfate and 0.05 part of persulfuric acid
Potassium, 60 DEG C of heating react 6 hours, obtain glue, then dry, crush, and obtain the fluid loss additive.
The preparation method of the nanometer sealing agent is as follows：
1 part of methyl methacrylate base caged oligomeric silsesquioxane of addition in the four-hole bottle equipped with mechanical agitator, 5
Part n-isopropyl acrylamide and 14 parts of acrylamides, 80 parts of deionized waters, 60 DEG C stir evenly；Under nitrogen protection, slowly
0.05 part of azo diisobutyl amidine dihydrochloride is added in, 60 DEG C of heating react 4 hours, obtain glue, then dries pulverizing, obtain
Nanometer sealing agent,
The preparation method of the lubricant is as follows：
1) 50 parts of polyethylene glycol PEG6000,30 parts of polyvinylpyrrolidone K-30 are added in into double-spiral conical mixer
In, 2h is stirred at room temperature；
2) 5 parts of castor oil polyoxyethylene ether EL-40 are added in, stir 2h at room temperature to get lubricant.
Embodiment 2
A kind of organic salt drilling fluid provided by the invention, including 4% bentonite, 0.5% sodium carbonate, 1% hydrogen-oxygen
Change sodium, 1% xanthans, 8% fluid loss additive, 5% nanometer sealing agent, 2% sulfonated gilsonite, 1% oxidized asphalt, 1%
Bitumen, 40% sodium formate, 20% potassium formate and 200% blanc fixe.
The preparation method of the fluid loss additive is as follows：
Added in the four-hole bottle equipped with mechanical agitator 10 parts of acrylamides and 15 parts of n-vinyl pyrrolidone and
100 parts of deionized water after stirring and dissolving, adds in suitable NaOH, adjusts pH value of water solution to 11, then adds in 35 parts of N-
N-isopropylacrylamide after being completely dissolved, under nitrogen protection, is slowly added to 0.5 part of azodiisobutyronitrile, 0.5 part of idol
Two different heptonitrile of nitrogen, 80 DEG C of heating react 4 hours, obtain glue, then dry, crush, and obtain the fluid loss additive.
The preparation method of wherein nanometer sealing agent is as follows：
5 parts of methyl methacrylate base caged oligomeric silsesquioxanes are added in the four-hole bottle equipped with mechanical agitator,
15 parts of n-isopropyl acrylamide and 15 parts of acrylamides, 65 parts of deionized waters, 60 DEG C stir evenly；Under nitrogen protection, delay
Slowly 0.1 part of azo diisobutyl amidine dihydrochloride is added in, 60 DEG C of heating react 6 hours, obtain glue, then dries pulverizing, obtain
To nanometer sealing agent.
The preparation method of wherein lubricant is as follows：
1) by 20 parts of polyethylene glycol PEG4000,20 parts of polyethylene glycol PEG6000,20 parts of polyvinylpyrrolidone K-60,
20 parts of polyvinylpyrrolidone K15 are added in double-spiral conical mixer, stir 1h at room temperature；
2) 4 parts of castor oil polyoxyethylene ether EL-60 and 3 parts of castor oil polyoxyethylene ether EL-30 are added in, are stirred at room temperature
2h is to get lubricant.
Embodiment 3
A kind of organic salt drilling fluid provided by the invention, including water and with 3% bentonite of the stereometer of water,
0.3% sodium carbonate, 0.8% sodium hydroxide, 0.5% xanthans, 5% fluid loss additive, 4% nanometer sealing agent, 1%
Emulsified asphalt, 1% oxidized asphalt, 1% bitumen, 40% sodium formate, 20% cesium formate and 150% ilmenite
Powder.
The preparation method of the fluid loss additive is as follows：
5 parts of acrylamides of addition, 5 parts of n-vinyl pyrrolidone and 5 parts in the four-hole bottle equipped with mechanical agitator
- 2 methyl propane sulfonic acid of 2- acrylamides and 100 parts of deionized water after stirring and dissolving, add in suitable NaOH, adjust aqueous solution
PH value is to 10, and then the n-isopropyl acrylamide of 30 parts of addition, after being completely dissolved, under nitrogen protection, is slowly added to 0.05
The ammonium persulfate and 0.5 part of azo diisobutyl amidine dihydrochloride of part, 70 DEG C of heating react 7 hours, obtain glue, then dry
It is dry, it crushes, obtains the fluid loss additive.
The preparation method of wherein nanometer sealing agent is as follows：
7 parts of methyl methacrylate base caged oligomeric silsesquioxanes are added in the four-hole bottle equipped with mechanical agitator,
13 parts of n-isopropyl acrylamide and 20 parts of acrylamides, 60 parts of deionized waters, 50 DEG C stir evenly；Under nitrogen protection, delay
Slowly 1 part of potassium peroxydisulfate is added in, 50 DEG C of heating react 4 hours, obtain glue, then dries pulverizing, obtain a nanometer sealing agent.
The preparation method of wherein lubricant is as follows：
1) 70 parts of polyethylene glycol PEG10000,20 parts of polyvinylpyrrolidone K-15 are mixed by double helix taper is added in
In machine, 2h is stirred at room temperature；
10 parts of castor oil polyoxyethylene ether EL-30 are added in, stir 1h at room temperature to get lubricant.
Table 1 is organic salt drilling fluid Evaluation results of the present invention, tests the rheological characteristic of drilling fluid of the present invention under high temperature
Can, the indexs such as filtrate loss controllability and lubricating coefficient reduced rate block instrument to organic salt drilling fluid in 5 microns of sand tables using permeability
In sealing characteristics be also evaluated.
1 organic salt drilling fluid performance of table
Note：Rheological property measures at 50 DEG C.
As it can be seen from table 1 drilling fluid of the present invention has excellent performance.
Claims (9)
1. a kind of organic salt drilling fluid, the sodium carbonate of bentonite, 0.3-0.5% including 1-4%, the sodium hydroxide of 0.5-1%,
The xanthans of 0.3-1%, the fluid loss additive of 2-8%, the nanometer sealing agent of 2-5%, the sealing agent of 1-4%, 0.5-4% lubrication
Agent, 40-60% organic salts, 25-250% inertia heavy weight additives, the content of the above components is in terms of the quality of water, which is characterized in that
The fluid loss additive is n-isopropyl acrylamide and acrylamide, n-vinyl pyrrolidone, 2- acrylamide -2- first
The one or more of base propane sulfonic acid are copolymerized；
The nanometer sealing agent is methyl methacrylate base caged oligomeric silsesquioxane, n-isopropyl acrylamide and propylene
Amide is copolymerized；
The sealing agent is at least one of sulfonated gilsonite, oxidized asphalt, bitumen, emulsified asphalt；
The lubricant is castor oil polyoxyethylene ether, polyethylene glycol, polyvinylpyrrolidone compound；
The organic salt is at least one of sodium formate, potassium formate and cesium formate；
The inertia heavy weight additive uses barite or ilmenite powder.
2. organic salt drilling fluid as described in claim 1, the fluid loss additive is made with the following method：
One or more of the acrylamide, n-vinyl pyrrolidone, 2- acrylamide-2-methyl propane sulfonics is molten
In deionized water, after stirring and dissolving, suitable NaOH is added in, pH value of water solution is adjusted to 9-11, then adds in N- isopropyls
Acrylamide after being completely dissolved, under nitrogen protection, is slowly added to initiator, 60-80 DEG C of heating is reacted 4-6 hours, obtains glue
Liquid is then dried, and is crushed, and obtains the fluid loss additive；
The deionized water and the addition of initiator are as follows in parts by mass：
Deionized water：100,
Initiator： 0.05‐1.
3. organic salt drilling fluid as claimed in claim 2, the initiator includes ammonium persulfate, potassium peroxydisulfate, peroxidating
Benzoyl, azodiisobutyronitrile, azobisisoheptonitrile, azo diisobutyl amidine dihydrochloride or it is arbitrary two or more mixed
Close object.
4. organic salt drilling fluid as described in claim 1, the nanometer sealing agent is by 1-8 parts in parts by weight of methyl
Methyl acrylate base caged oligomeric silsesquioxane, 5-15 parts of n-isopropyl acrylamide, 14-22 parts of acrylamide propylene
Amide is copolymerized under the action of initiator, the copolymer obtained after being then dried.
5. organic salt drilling fluid as claimed in claim 4, the nanometer sealing agent is made using following steps：
The methyl methacrylate base caged oligomeric silsesquioxane, n-isopropyl acrylamide and acrylamide are added in
In deionized water, stir evenly；50-60 DEG C is heated to, under nitrogen protection, is slowly added to initiator, reaction 4-6 is small
When, glue is obtained, then dries pulverizing, obtain the organic salt drilling fluid nanometer sealing agent.
6. organic salt drilling fluid as claimed in claim 4, the deionized water and the matter of initiator that are added in the preparation method
It is as follows to measure part：
Deionized water：55-80,
Initiator： 0.05‐2.
7. organic salt drilling fluid as described in claim 4 or 5, the initiator be selected from it is following any one or it is two or more
Mixture：Ammonium persulfate, potassium peroxydisulfate, azo diisobutyl amidine dihydrochloride.
8. organic salt drilling fluid as described in claim 1, the lubricant is counts 5-10 parts of castor oil polyoxies in parts by weight
Vinethene, 40-70 part polyethylene glycol, 20-40 parts of polyvinylpyrrolidone compound.
9. organic salt drilling fluid as described in claim 1, the lubricant is made using following steps：
1) polyethylene glycol, polyvinylpyrrolidone are added in double-spiral conical mixer, stirs 1-2h at room temperature；
2) castor oil polyoxyethylene ether is added in, stirs 1-2h at room temperature to get the lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144768.5A CN105694830B (en) | 2016-03-14 | 2016-03-14 | A kind of organic salt drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610144768.5A CN105694830B (en) | 2016-03-14 | 2016-03-14 | A kind of organic salt drilling fluid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105694830A CN105694830A (en) | 2016-06-22 |
| CN105694830B true CN105694830B (en) | 2018-06-19 |
Family
ID=56220529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610144768.5A Active CN105694830B (en) | 2016-03-14 | 2016-03-14 | A kind of organic salt drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105694830B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106675535B (en) * | 2016-11-25 | 2019-10-11 | 中国石油天然气集团公司 | A kind of environment protection water-based drilling fluid and preparation method thereof |
| CN107502317B (en) * | 2017-09-07 | 2020-04-17 | 杨锋 | Extreme pressure lubricant for drilling fluid 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 |
| CN107556990B (en) * | 2017-09-20 | 2019-07-23 | 中国石油集团渤海钻探工程有限公司 | It is a kind of to strengthen the organic salt drilling fluid inhibited with sealing characteristics |
| US11692120B2 (en) * | 2019-09-20 | 2023-07-04 | Texas A&M University | Degradable polymeric nanoparticles and uses thereof |
| CN112574725B (en) * | 2020-12-25 | 2021-11-23 | 中国石油集团渤海钻探工程有限公司 | High-temperature-resistant high-density water-based drilling fluid and preparation method thereof |
| CN114989374B (en) * | 2022-05-12 | 2023-05-05 | 滨州学院 | Cross-linked block copolymer borehole wall stabilizer, preparation method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231162A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Polyacrylamide reversed-phase microemulsion and preparation method thereof |
| CN104650833A (en) * | 2013-11-25 | 2015-05-27 | 中国石油化工集团公司 | Oil-in-water emulsion drilling fluid and preparation method thereof |
| CN104962252A (en) * | 2015-07-03 | 2015-10-07 | 中国石油集团西部钻探工程有限公司 | Organic salt polyamine drilling fluid and preparation method thereof |
-
2016
- 2016-03-14 CN CN201610144768.5A patent/CN105694830B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104231162A (en) * | 2013-06-17 | 2014-12-24 | 中国石油化工股份有限公司 | Polyacrylamide reversed-phase microemulsion and preparation method thereof |
| CN104650833A (en) * | 2013-11-25 | 2015-05-27 | 中国石油化工集团公司 | Oil-in-water emulsion drilling fluid and preparation method thereof |
| CN104962252A (en) * | 2015-07-03 | 2015-10-07 | 中国石油集团西部钻探工程有限公司 | Organic salt polyamine drilling fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105694830A (en) | 2016-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105694830B (en) | A kind of organic salt drilling fluid | |
| CN105754563B (en) | A kind of organic salt drilling fluid suitable for extended reach well | |
| Mao et al. | Hydrophobic associated polymer based silica nanoparticles composite with core–shell structure as a filtrate reducer for drilling fluid at utra-high temperature | |
| Zhao et al. | Mechanism and method for controlling low-temperature rheology of water-based drilling fluids in deepwater drilling | |
| US7449430B2 (en) | Fluid loss reducer for high temperature high pressure water based-mud application | |
| CN102234501B (en) | Ocean deepwater water-based constant-rheology drilling fluid | |
| US20030139297A1 (en) | Surfactant-polymer composition for substantially solid-free water based drilling, drill-in, and completion fluids | |
| CN106675535A (en) | Environment-friendly water-based drilling fluid and preparation method thereof | |
| CN102732234B (en) | Salt-resistant temperature-resistant micro-foam water-based drilling fluid | |
| CN105623628A (en) | Ultra-high density oil-based drilling fluid and preparation method thereof | |
| CN108659801A (en) | Resist the low density water base drilling fluid and the preparation method and application thereof of 248 DEG C of superhigh temperature | |
| CN110452326B (en) | Coating agent for water-based drilling fluid and preparation method thereof | |
| CN110642739A (en) | PH responsive soilless phase reversible emulsified drilling fluid and preparation and reversion method thereof | |
| Nareh’ei et al. | Rheological and filtration loss characteristics of colloidal gas aphron based drilling fluids | |
| CN108276975A (en) | A kind of high-temperature resistant water-based drilling fluid and preparation method thereof | |
| CN106554462A (en) | Coating agent and its preparation method and application and oil drilling drilling fluid | |
| CN107033860A (en) | A kind of potassium chloride polymer drilling fluid | |
| CN105969323A (en) | High-density water-based drilling fluid for shale gas horizontal well | |
| CN107629767A (en) | A kind of drilling well lubricates seizureproof agent and its preparation method and application with oil base | |
| CN110452670A (en) | Water-base drilling fluid fluid loss additive and preparation method thereof | |
| CN104419389B (en) | Clay shale formation stabilization micro-nano drilling fluid and application thereof | |
| MX2013000721A (en) | Method and biodegradable water based thinner composition for drilling subterranean boreholes with aqueous based drilling fluid. | |
| CN110819319B (en) | Drilling fluid system and preparation method thereof | |
| CN108239521A (en) | A kind of drilling fluid micro emulsion gel and preparation method thereof | |
| EP1814961B1 (en) | Environmentally friendly water based mud deflocculant/thinner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210204 Address after: 100007 No. 9 North Main Street, Dongcheng District, Beijing, Dongzhimen Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Address before: 300457 Tianjin Binhai New Area Development Zone Huanghai Road 106 Bohai Drilling Engineering Co., Ltd. science and Technology Development Office Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |