CN106634877A - A microemulsion type lubricant used for a drilling fluid and a preparing method thereof - Google Patents
A microemulsion type lubricant used for a drilling fluid and a preparing method thereof Download PDFInfo
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- CN106634877A CN106634877A CN201510717193.7A CN201510717193A CN106634877A CN 106634877 A CN106634877 A CN 106634877A CN 201510717193 A CN201510717193 A CN 201510717193A CN 106634877 A CN106634877 A CN 106634877A
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- drilling fluid
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- lubricant
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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
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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
- C09K2208/34—Lubricant additives
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- 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)
- Lubricants (AREA)
Abstract
The invention relates to a microemulsion type lubricant used for a drilling fluid and a preparing method thereof. The lubricant includes mineral oil or refined gutter oil, a surfactant, an inorganic salt, n-butanol and water. The method includes firstly adding water into a reaction kettle, slowly adding the surfactant into the reaction kettle with the stirring speed being 2000-3000 r/min; after the water and the surfactant are fully mixed, slowly adding the inorganic salt; after the inorganic salt is fully dissolved, adding the n-butanol and the mineral oil or refined gutter oil; and allowing the mixture to stand for 5-10 h. The lubricant and the method are advantageous in that industrial production of the lubricant can be achieved and the environment protection problem of the gutter oil is solved; the lubricant has good compatibleness with a water-based drilling fluid, has low influences on rheological properties of the drilling fluid, and can effectively reduce the frictional resistance coefficient and the mud cake adhesion coefficient; and by adding the lubricant into the drilling fluid, the mud cake adhesion coefficient can be effectively reduced. Experiment measurement shows that the highest reduction rate of the mud cake adhesion coefficient is 52.3%.
Description
Technical field
The present invention relates to a kind of drilling fluid micro-emulsion type lubricant in drilling engineering auxiliary chemicals field, more particularly to a kind of water-base drilling fluid stable micro-emulsion type lubricant of thermodynamic property and preparation method thereof.
Background technology
Water-base drilling fluid is most widely used drilling fluid types, always in occupation of leading position in actual scene application, but in the work progress of horizontal well and high angle hole, its coefficient of friction resistance is difficult to control to, therefore it is with lubricator necessary for developing the water-base drilling fluid of efficient stable.
It is domestic at present that substantial amounts of research work has been done in terms of drilling fluid lubricating is improved, but lack the research for the micro-emulsion type lubricant with Thermodynamically stable system that can be generally applicable in big temperature range.Li Dezhong etc. exists《The research of LDZ-1 water solubility microemulsion lubricating agent》It is middle to have synthesized a kind of micro-emulsion type lubricant of the replaced oil lubricant for being applied to industrial manufacture（See《Lubrication and sealing》,2003,1）, oil, water, surfactant, antirust agent, antioxidant and corrosion inhibiter etc. based on base stock.Zhang Xiong etc. exists《The research of the microemulsion lubricating agent MELT with high-efficiency washing performance》In propose a kind of water-soluble microemulsion lubricating agent with good stability, high-efficiency washing performance（See《East China Normal University's journal》, 2002,4）.The patent of publication number CN1699500 discloses a kind of drilling fluid particle stabilized emulsion system, including mineral oil or solid paraffin, anion surfactant, active nano solid particle, water etc..The shortcoming or deficiency of these technologies be：The not microemulsion lubricating agent for petroleum industry drilling fluid launches research；The lubricant of stabilized emulsion system is relatively costly, bad with the compatibility of water-base drilling fluid；All researchs are not directed to environmental-protecting performance evaluation.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of above-mentioned technology, there is provided a kind of drilling fluid micro-emulsion type lubricant and preparation method thereof, and compatibility preferably can be carried out with water-base drilling fluid, improves the lubricity of system；Simultaneously less is affected on drilling fluid rheology performance, greasy property can be improved again, effectively reduce frictional resistance, sticking coefficient, improve drilling speed.
In order to reach the purpose of the present invention, the technical scheme is that what is be achieved in that：
A kind of drilling fluid micro-emulsion type lubricant is made up of mineral oil or refining waste oil, surfactant, inorganic salts, n-butanol and water, the percentage by weight of its mineral oil in fluid or refining waste oil be the percentage by weight of 10% ~ 30%, surfactant be 10%-15%, n-butanol percentage by weight be 10%-20%, inorganic salts percentage by weight be 2% ~ 4%, balance of water.Wherein：
It is to filter waste oil after heating to refine waste oil, then the calcium carbonate that percentage by weight is 15% and the salt solution that percentage by weight is 10% are added thereto to, stirring at low speed, to place and add activated decoloration after 3-8 hours, and then filter liquor as refines waste oil.
Surfactant is one or more in sodium alkyl benzene sulfonate, sodium alkyl sulfate, pareth sulfate and sorbester p17 4-5 by weight：1-2 is formulated.
Inorganic salts are sodium chloride, potassium chloride, one kind of ammonium chloride.
It is based on a kind of drilling fluid micro-emulsion type method for preparing lubricant of such scheme：Water is poured in reactor first, it is then slow under the mixing speed of 2000r/min-3000r/min surfactant to be added in reactor, it is to be mixed it is uniform after, it is slow to add inorganic salts, after being completely dissolved, n-butanol and refining waste oil or mineral oil are added, stand 5-10 hours.
The invention has the advantages that：
①
The present invention is studied for drilling fluid with microemulsion lubricating agent, and the oil phase composition for using is refining waste oil.The production for being used for lubricant after trench oil refinement can be met into industrial demand, the environmental issue that waste oil brings can be solved again；
Lubricant has good compatibility with water mark drilling fluid, affects less to drilling fluid rheology performance, and the coefficient of friction resistance and mud cake sticking coefficient can be effectively reduced again；
The present invention is measured using micro-nano laser particle analyzer, and D90 values are less than 300nm；The present invention is added in drilling fluid, can effectively reduce mud cake sticking coefficient.Jing measurings, sticking coefficient reduced rate is up to 52.3%.
Specific embodiment
With reference to specific embodiment, the present invention will be further described, wherein involved percentage is weight percentage.
Embodiment one：
38% water is poured in reactor first, it is then slow by neopelex and sorbester p17 in proportion 5 under the mixing speed of 2000r/min-3000r/min：2 add in reactors, and total amount is 10%, it is to be mixed it is uniform after, it is slow add 2% sodium chloride, after being completely dissolved, add 20% n-butanol and 30% mineral oil, stand 5-10 hours.
Embodiment two：
41% water is poured in reactor first, it is then slow by lauryl sodium sulfate and sorbester p17 in proportion 4 under the mixing speed of 2000r/min-3000r/min：1 adds in reactor, and total amount is 15%, it is to be mixed it is uniform after, it is slow to add 4% potassium chloride, but after being completely dissolved, add 10% n-butanol and 30% refining waste oil, stand 5-10
Hour.
Embodiment three：
Water is poured in reactor first, it is then slow by pareth sulfate and sorbester p17 in proportion 4 under the mixing speed of 2000r/min-3000r/min：1 adds in reactor, and total amount is 15%, it is to be mixed it is uniform after, it is slow to add 4% ammonium chloride, but after being completely dissolved, add 10% n-butanol and 10% refining waste oil, stand 5-10
Hour.
Refined waste oil to filter after heating, be then added thereto to the calcium carbonate that percentage by weight is 15% and the salt solution that percentage by weight is 10%, stirring at low speed to be placed and add activated decoloration after 3-8 hours, and then filter liquor as refines waste oil.
Claims (5)
1. a kind of drilling fluid micro-emulsion type lubricant, is characterized in that：It is made up of mineral oil or refining waste oil, surfactant, inorganic salts, n-butanol and water, wherein：The percentage by weight of mineral oil or refining waste oil is 10% ~ 30%, the percentage by weight of surfactant is 10%-15%, n-butanol percentage by weight is 10%-20%, inorganic salts percentage by weight is 2% ~ 4%, balance of water.
2. a kind of drilling fluid micro-emulsion type lubricant according to claim 1, is characterized in that：The refining waste oil is to filter waste oil after heating, then the calcium carbonate that percentage by weight is 15% and the salt solution that percentage by weight is 10% are added thereto to, stirring at low speed, to place and add activated decoloration after 3-8 hours, and then filter liquor obtains final product refining waste oil.
3. a kind of drilling fluid micro-emulsion type lubricant according to claim 1, is characterized in that：The surfactant is one or more in sodium alkyl benzene sulfonate, sodium alkyl sulfate, pareth sulfate and sorbester p17 4-5 by weight：1-2 is formulated.
4. a kind of drilling fluid micro-emulsion type lubricant according to claim 1, is characterized in that：The inorganic salts are sodium chloride, potassium chloride, one kind of ammonium chloride.
5. it is according to the preparation method of the drilling fluid micro-emulsion type lubricant described in any of the above-described claim：Water is poured in reactor first, it is then slow under the mixing speed of 2000r/min-3000r/min surfactant to be added in reactor, it is to be mixed it is uniform after, it is slow to add inorganic salts, after being completely dissolved, n-butanol and refining waste oil or mineral oil are added, stand 5-10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717193.7A CN106634877A (en) | 2015-10-30 | 2015-10-30 | A microemulsion type lubricant used for a drilling fluid and a preparing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717193.7A CN106634877A (en) | 2015-10-30 | 2015-10-30 | A microemulsion type lubricant used for a drilling fluid and a preparing method thereof |
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| CN106634877A true CN106634877A (en) | 2017-05-10 |
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| CN201510717193.7A Pending CN106634877A (en) | 2015-10-30 | 2015-10-30 | A microemulsion type lubricant used for a drilling fluid and a preparing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828390A (en) * | 2017-11-08 | 2018-03-23 | 常州万博金属构件厂 | A kind of preparation method of drilling fluid lubricant emulsion |
| CN109504355A (en) * | 2019-01-14 | 2019-03-22 | 天津市海罗兰科技发展股份有限公司 | Highly-efficient lubricant for drilling fluid and its preparation method and application |
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| CN1670121A (en) * | 2005-03-25 | 2005-09-21 | 山东大学 | Multifunctional |
| CN102676129A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Water-based lubricant for drilling fluid as well as preparation and application of water-base lubricant |
| CN102851004A (en) * | 2012-09-30 | 2013-01-02 | 中国石油集团西部钻探工程有限公司 | Biodegradable lubricant for drilling fluid and preparation method thereof |
| CN103642467A (en) * | 2013-12-10 | 2014-03-19 | 湖北龙海化工有限公司 | Low-fluorescence anti-seize lubricant for drilling fluid and preparation method thereof |
| CN103642468A (en) * | 2013-12-13 | 2014-03-19 | 西安石油大学 | Preparation method of lubricant for drilling fluid |
| CN103695073A (en) * | 2014-01-06 | 2014-04-02 | 河南金马石油科技有限责任公司 | Lubricant and preparation method thereof |
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| CN103980867A (en) * | 2014-05-14 | 2014-08-13 | 中国石油集团渤海钻探工程有限公司 | Low-temperature resistant nanometer paraffin emulsion and preparation method thereof |
| CN104673255A (en) * | 2013-12-03 | 2015-06-03 | 青岛惠城石化科技有限公司 | Research of drilling fluid nano lubricating emulsifier |
| CN104673254A (en) * | 2013-12-03 | 2015-06-03 | 青岛惠城石化科技有限公司 | Proportion research of novel drilling fluid lubricant |
-
2015
- 2015-10-30 CN CN201510717193.7A patent/CN106634877A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1670121A (en) * | 2005-03-25 | 2005-09-21 | 山东大学 | Multifunctional |
| CN102676129A (en) * | 2012-04-20 | 2012-09-19 | 中国海洋石油总公司 | Water-based lubricant for drilling fluid as well as preparation and application of water-base lubricant |
| CN102851004A (en) * | 2012-09-30 | 2013-01-02 | 中国石油集团西部钻探工程有限公司 | Biodegradable lubricant for drilling fluid and preparation method thereof |
| CN104673255A (en) * | 2013-12-03 | 2015-06-03 | 青岛惠城石化科技有限公司 | Research of drilling fluid nano lubricating emulsifier |
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| CN103642467A (en) * | 2013-12-10 | 2014-03-19 | 湖北龙海化工有限公司 | Low-fluorescence anti-seize lubricant for drilling fluid and preparation method thereof |
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| CN103965841A (en) * | 2014-05-01 | 2014-08-06 | 克拉玛依市奥泽工贸有限责任公司 | Microemulsion white oil for drilling fluid as well as preparation and application methods thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107828390A (en) * | 2017-11-08 | 2018-03-23 | 常州万博金属构件厂 | A kind of preparation method of drilling fluid lubricant emulsion |
| CN109504355A (en) * | 2019-01-14 | 2019-03-22 | 天津市海罗兰科技发展股份有限公司 | Highly-efficient lubricant for drilling fluid and its preparation method and application |
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Application publication date: 20170510 |