CN103965841A - Microemulsion white oil for drilling fluid as well as preparation and application methods thereof - Google Patents
Microemulsion white oil for drilling fluid as well as preparation and application methods thereof Download PDFInfo
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- CN103965841A CN103965841A CN201410180138.4A CN201410180138A CN103965841A CN 103965841 A CN103965841 A CN 103965841A CN 201410180138 A CN201410180138 A CN 201410180138A CN 103965841 A CN103965841 A CN 103965841A
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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
- 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
- C09K8/26—Oil-in-water emulsions
- C09K8/28—Oil-in-water emulsions containing 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
- C09K2208/34—Lubricant additives
Abstract
The invention relates to the technical field of microemulsion white oil for drilling fluids, in particular to microemulsion white oil for a drilling fluid as well as preparation and application methods thereof. The microemulsion white oil comprises the following constituents in parts by weight: 60-90 parts of white oil, 3-12 parts of one or more main surfactants, 2-8 parts of a cosurfactant and 0-20 parts of a lubricant. The microemulsion white oil has the advantages of short emulsification time, high emulsifiability and high lubricity. An oil-in-water type emulsion drilling fluid, which is obtained by adding the microemulsion white oil to a water-based drilling fluid, has the advantages of high thermal stability, good lubricating and film-forming properties, and high inhibitive capability. The microemulsion white oil is applicable to high-risk wells such as deep wells, ultra-deep wells, high-inclination directional wells and horizontal wells, can be used as a lubricant for deep wells and ultra-deep wells, and can also be mixed with various water-based drilling fluids according to proportions to be transformed into mixed oil or oil-based drilling fluids to serve as drilling completion fluid used for construction of high-inclination directional wells and horizontal wells.
Description
Technical field
the present invention relates to micro emulsion white oil technical field for drilling fluid, is micro emulsion white oil and preparation method thereof and using method for a kind of drilling fluid.
Background technology
microemulsion in China's development rapidly, is widely used in the industries such as weaving, printing, coating, lubricating oil and mechanical workout; But the application of microemulsion oil tech on oil drilling also belongs to cutting edge technology, relevant drilling fluid has not yet to see report with microemulsion oil.
Summary of the invention
the invention provides micro emulsion white oil and preparation method thereof and using method for a kind of drilling fluid, overcome the deficiency of above-mentioned prior art, it can effectively solve drilling fluid and with microemulsion oil, there is not yet the problem of report.
one of technical scheme of the present invention realizes by following measures: a kind of drilling fluid micro emulsion white oil, comprises 60 parts to 90 parts of white oils, 3 parts to 12 parts of major surfaces promoting agents, 2 parts to 8 parts of cosurfactants, 0 part to 20 parts of lubricant by weight.
the further optimization and/or improvements to one of foregoing invention technical scheme below:
above-mentioned drilling fluid obtains as follows with micro emulsion white oil: the major surfaces promoting agent of aequum is joined in the white oil of aequum and stir, add again the cosurfactant of aequum to stir, finally add the lubricant of aequum to stir and obtain drilling fluid micro emulsion white oil.
above-mentioned white oil is 3
#
white oil or 5
#
white oil or 10
#
white oil or 15
#
white oil.
above-mentioned major surfaces promoting agent is more than one in sorbitan monooleate, polyoxyethylene sorbitan monooleate, fatty alcohol-ether phosphoric acid ester, fatty monoethanol amide, cycloalkanoimide, ethylene glycol glucoside stearate, oleic acid diethyl amide, polyoxyethylene nonylphenol ether OP-4, polyoxyethylene nonylphenol ether OP-7 and polyoxyethylene nonylphenol ether OP-10.
above-mentioned cosurfactant is more than one in sodium alkyl benzene sulfonate, alkyl sodium sulfonate, sodium lauryl sulphate and Sodium dodecylbenzene sulfonate; Or/and lubricant is that oleic acid or lubricant are that methyl esters or lubricant are the mixture of oleic acid and methyl esters.
two of technical scheme of the present invention realizes by following measures: the preparation method of micro emulsion white oil for a kind of drilling fluid, carry out as follows: the major surfaces promoting agent of aequum is joined in the white oil of aequum and stir, add again the cosurfactant of aequum to stir, finally add the lubricant of aequum to stir and obtain drilling fluid micro emulsion white oil.
the further optimization and/or improvements to two of foregoing invention technical scheme below:
above-mentioned white oil is 3
#
white oil or 5
#
white oil or 10
#
white oil or 15
#
white oil.
above-mentioned major surfaces promoting agent is more than one in sorbitan monooleate, polyoxyethylene sorbitan monooleate, fatty alcohol-ether phosphoric acid ester, fatty monoethanol amide, cycloalkanoimide, ethylene glycol glucoside stearate, oleic acid diethyl amide, polyoxyethylene nonylphenol ether OP-4, polyoxyethylene nonylphenol ether OP-7 and polyoxyethylene nonylphenol ether OP-10.
above-mentioned cosurfactant is more than one in sodium alkyl benzene sulfonate, alkyl sodium sulfonate, sodium lauryl sulphate and Sodium dodecylbenzene sulfonate; Or/and lubricant is that oleic acid or lubricant are that methyl esters or lubricant are the mixture of oleic acid and methyl esters.
three of technical scheme of the present invention realizes by following measures: the using method of micro emulsion white oil for a kind of drilling fluid, carry out as follows: in drilling process, by adding the micro emulsion white oil for drilling fluid of 50 kilograms to 1000 kilograms in every 1000 kg water base drilling fluids, in drilling fluid, add drilling fluid micro emulsion white oil, form oil-in-water-type emulsus drilling fluid.
drilling fluid of the present invention is short with the emulsification times of micro emulsion white oil, emulsification and lubricity good; In water-base drilling fluid, add drilling fluid of the present invention good with thermostability, lubricant film forming and the inhibition of the oil-in-water-type emulsus drilling fluid obtaining after micro emulsion white oil; Drilling fluid of the present invention is applicable to the excessive risk wells such as deep-well, ultra deep well, high-inclination directional well, horizontal well with micro emulsion white oil, the lubricant that can do deep-well, ultra deep well is used, and also can be mixed in proportion and make the transition into contaminated product or oil base drilling fluid and use as the drill in fluid of high-inclination directional well and Horizontal Well Drilling well construction with various water-base drilling fluids.
Embodiment
the present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.
embodiment 1, and this drilling fluid micro emulsion white oil comprises 60 parts to 90 parts of white oils, 3 parts to 12 parts of major surfaces promoting agents, 2 parts to 8 parts of cosurfactants, 0 part to 20 parts of lubricant by weight.
embodiment 2, and this drilling fluid micro emulsion white oil comprises 60 parts of white oils, 3 parts of major surfaces promoting agents, 2 parts of cosurfactants by weight.
embodiment 3, and this drilling fluid micro emulsion white oil comprises 90 parts of white oils, 12 parts of major surfaces promoting agents, 8 parts of cosurfactants, 20 parts of lubricants by weight.
embodiment 4, and this drilling fluid micro emulsion white oil comprises 20 parts of 60 parts of white oils, 12 parts of major surfaces promoting agents, cosurfactant to 8 part, lubricants by weight.
embodiment 5, and this drilling fluid micro emulsion white oil comprises 20 parts of 65 parts of white oils, 10 parts of major surfaces promoting agents, cosurfactant to 5 part, lubricants by weight.
embodiment 6, and this drilling fluid micro emulsion white oil comprises 15 parts of 70 parts of white oils, 10 parts of major surfaces promoting agents, cosurfactant to 5 part, lubricants by weight.
embodiment 7, and this drilling fluid micro emulsion white oil comprises 12 parts of 75 parts of white oils, 8 parts of major surfaces promoting agents, cosurfactant to 5 part, lubricants by weight.
embodiment 8, and this drilling fluid micro emulsion white oil comprises 10 parts of 80 parts of white oils, 8 parts of major surfaces promoting agents, cosurfactant to 2 part, lubricants by weight.
embodiment 9, and this drilling fluid micro emulsion white oil comprises 7 parts of 85 parts of white oils, 5 parts of major surfaces promoting agents, cosurfactant to 3 part, lubricants by weight.
embodiment 10, and this drilling fluid micro emulsion white oil comprises 4 parts of 90 parts of white oils, 3 parts of major surfaces promoting agents, cosurfactant to 3 part, lubricants by weight.
embodiment 11, and this drilling fluid micro emulsion white oil comprises 90 parts of white oils, 7 parts of major surfaces promoting agents, cosurfactant to 3 part by weight.
embodiment 12, and this drilling fluid micro emulsion white oil comprises 90 parts of white oils, 8 parts of major surfaces promoting agents, cosurfactant to 2 part by weight.
embodiment 13, this drilling fluid obtains by following preparation method with micro emulsion white oil: the major surfaces promoting agent of aequum is joined in the white oil of aequum and stir, add again the cosurfactant of aequum to stir, finally add the lubricant of aequum to stir and obtain drilling fluid micro emulsion white oil.
embodiment 14, the optimization to above-described embodiment, and in embodiment 14, white oil is 3
#
white oil or 5
#
white oil or 10
#
white oil or 15
#
white oil.
embodiment 15, optimization to above-described embodiment, in embodiment 15, major surfaces promoting agent is more than one in sorbitan monooleate, polyoxyethylene sorbitan monooleate, fatty alcohol-ether phosphoric acid ester, fatty monoethanol amide, cycloalkanoimide, ethylene glycol glucoside stearate, oleic acid diethyl amide, polyoxyethylene nonylphenol ether OP-4, polyoxyethylene nonylphenol ether OP-7 and polyoxyethylene nonylphenol ether OP-10.
embodiment 16, the optimization to above-described embodiment, and in embodiment 16, cosurfactant is more than one in sodium alkyl benzene sulfonate, alkyl sodium sulfonate, sodium lauryl sulphate and Sodium dodecylbenzene sulfonate.
embodiment 17, the optimization to above-described embodiment, and in embodiment 17, lubricant is that oleic acid or lubricant are that methyl esters or lubricant are the mixture of oleic acid and methyl esters.Oleic acid or/and methyl esters add improved drilling fluid with micro emulsion white oil oilness.
embodiment 18, the using method of micro emulsion white oil for this drilling fluid, carry out as follows: in drilling process, by adding the micro emulsion white oil for drilling fluid of 50 kilograms to 1000 kilograms in every 1000 kg water base drilling fluids, in drilling fluid, add drilling fluid micro emulsion white oil, form oil-in-water-type emulsus drilling fluid.Drilling fluid is existing public water-base drilling fluid.Drilling fluid of the present invention can convert oil-in-water-type emulsus drilling fluid or invert mud by the different of water-oil ratio to water-base drilling fluid from various water-base drilling fluids (sulphur as poly-in potassium calcium base, salt solution or saturated brine polymkeric substance, the poly-sulphur of saturated brine etc.) with micro emulsion white oil.
the drilling fluid that the above embodiment of the present invention 2 obtains is shown in Table 1 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 3 obtains is shown in Table 2 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 4 obtains is shown in Table 3 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 5 obtains is shown in Table 4 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 6 obtains is shown in Table 5 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 7 obtains is shown in Table 6 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 8 obtains is shown in Table 7 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 9 obtains is shown in Table 8 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 10 obtains is shown in Table 9 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 11 obtains is shown in Table 10 with the performance measurement of micro emulsion white oil; The drilling fluid that the above embodiment of the present invention 12 obtains is shown in Table 11 with the performance measurement of micro emulsion white oil; The standard of performance of the salable product that drilling fluid of the present invention is formulated with this enterprise of micro emulsion white oil is shown in Table 12; The drilling fluid that above-described embodiment 2 to embodiment 12 obtains obtains through the check of Xinjiang Uygur Autonomous Regions's assistant for drilling petroleum well product quality supervision measuring station with the performance measurement of micro emulsion white oil.
by table 1 to table 12, can be found out, drilling fluid of the present invention separates out with emulsification rate, working substance content, emulsification times, the static 8h of room temperature of micro emulsion white oil the salable product standard that oil and lubricating coefficient reduced rate are all formulated far above this enterprise, illustrate that the emulsification times of drilling fluid use micro emulsion white oil of the present invention is short, emulsification and lubricity good.
the oil-in-water-type emulsus drilling fluid that the above embodiment of the present invention 18 obtains and the performance comparison of existing water-base drilling fluid are shown in Table 13, as can be seen from Table 13, in water-base drilling fluid, add the emulsion of the more existing water-base drilling fluid of oil-in-water-type emulsus drilling fluid obtaining after micro emulsion white oil for drilling fluid of the present invention, lubricating coefficient reduced rate, suspension and inhibition all have significant improvement, and the thermal stability of the oil-in-water-type emulsus drilling fluid obtaining is good, temperature resistance is breakdown of emulsion not up to 180 ℃, and lubricant film forming is good, can be at the borehole wall, drilling tool and drilling cuttings surface form uniform and stable, microemulsion lubricant film firmly, stops drilling fluid filtrate to the infiltration in formation pore, prevents stratum clay aquation, expand and disperse, playing inhibition, lubricated, wall building retaining wall, stabilizing borehole, prevent the effect of borehole well instability, and can effectively reduce annular space flow resistance, prevent that drilling cuttings from causing that at the borehole wall and surface of drill stem adhesion annular space silting causes pump pressure raise and leakage occur or prevent horizontal section and the formation of inclination section cutting bed, drilling tool and recycle system equipment are had to good lubricated preservative efficacy simultaneously, can extend drilling tool, the work-ing life of the equipment such as drill bit and instrument, oil-in-water-type emulsus drilling fluid and reservoir crude oil or viscous crude have good dissolubility and the compatibility of adding, after mixing with crude oil in reservoir, can significantly reduce crude oil or thick oil viscosity, improve the mobility of crude oil or viscous crude, so can greatly improve the output of reservoir, play the object of protection hydrocarbon zone, the raising rate of oil and gas recovery, drilling fluid of the present invention is applicable to the excessive risk wells such as deep-well, ultra deep well, high-inclination directional well, horizontal well with micro emulsion white oil, the lubricant that can do deep-well, ultra deep well is used, and also can be mixed in proportion and make the transition into contaminated product or oil base drilling fluid and use as the drill in fluid of high-inclination directional well and Horizontal Well Drilling well construction with various water-base drilling fluids.
in sum, drilling fluid of the present invention, emulsification short with the emulsification times of micro emulsion white oil and lubricity are good; In water-base drilling fluid, add drilling fluid of the present invention good with thermostability, lubricant film forming and the inhibition of the oil-in-water-type emulsus drilling fluid obtaining after micro emulsion white oil; Drilling fluid of the present invention is applicable to the excessive risk wells such as deep-well, ultra deep well, high-inclination directional well, horizontal well with micro emulsion white oil, the lubricant that can do deep-well, ultra deep well is used, and also can be mixed in proportion and make the transition into contaminated product or oil base drilling fluid and use as the drill in fluid of high-inclination directional well and Horizontal Well Drilling well construction with various water-base drilling fluids.
Above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
table 1
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 95 |
| Working substance content, % | 98 |
| Emulsification times, S | 13 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 72 |
table 2
| Project | Index |
| Emulsification rate, % | 98 |
| Working substance content, % | 98 |
| Emulsification times, S | 6 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 90 |
table 3
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 98 |
| Working substance content, % | 98 |
| Emulsification times, S | 10 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 89.0 |
table 4
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 95 |
| Working substance content, % | 98 |
| Emulsification times, S | 11 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 88 |
table 5
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 96 |
| Working substance content, % | 98 |
| Emulsification times, S | 12 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 90 |
table 6
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 98 |
| Working substance content, % | 98 |
| Emulsification times, S | 13 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 86 |
table 7
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 96 |
| Working substance content, % | 95 |
| Emulsification times, S | 15 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 85 |
table 8
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 95 |
| Working substance content, % | 96 |
| Emulsification times, S | 12 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 82 |
table 9
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 96 |
| Working substance content, % | 96 |
| Emulsification times, S | 11 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 83 |
table 10
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 97 |
| Working substance content, % | 97 |
| Emulsification times, S | 12 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 85 |
table 11
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Result |
| Emulsification rate, % | 96 |
| Working substance content, % | 96 |
| Emulsification times, S | 11 |
| The static 8h of room temperature separates out oil, mL | 0 |
| Lubricating coefficient reduced rate, % | 83 |
table 12
| The performance measurement of micro emulsion white oil for drilling fluid of the present invention | Index |
| Emulsification rate, % | ≥80 |
| Working substance content, % | ≥85 |
| Emulsification times, S | ≤30 |
| The static 8h of room temperature separates out oil, mL | ≤10 |
| Lubricating coefficient reduced rate, % | ≥70.0 |
table 13
| Project | Before drilling fluid of the present invention adds with micro emulsion white oil | After drilling fluid of the present invention adds with micro emulsion white oil |
| Emulsion | Pure water-based mud, not emulsification | Water-based mud and drilling fluid of the present invention are fine with the emulsification of micro emulsion white oil |
| Lubricating coefficient reduced rate, % | 30 | 80 |
| Suspension | Generally | Fine |
| Inhibition | Poor | Fine |
Claims (10)
1. a drilling fluid micro emulsion white oil, is characterized in that comprising by weight 60 parts to 90 parts of white oils, 3 parts to 12 parts of major surfaces promoting agents, 2 parts to 8 parts of cosurfactants, 0 part to 20 parts of lubricant.
2. drilling fluid according to claim 1 micro emulsion white oil, it is characterized in that drilling fluid obtains as follows with micro emulsion white oil: the major surfaces promoting agent of aequum is joined in the white oil of aequum and stir, add again the cosurfactant of aequum to stir, finally add the lubricant of aequum to stir and obtain drilling fluid micro emulsion white oil.
3. drilling fluid according to claim 1 and 2 micro emulsion white oil, is characterized in that white oil is 3
#white oil or 5
#white oil or 10
#white oil or 15
#white oil.
4. according to the drilling fluid micro emulsion white oil described in claim 1 or 2 or 3, it is characterized in that major surfaces promoting agent is more than one in sorbitan monooleate, polyoxyethylene sorbitan monooleate, fatty alcohol-ether phosphoric acid ester, fatty monoethanol amide, cycloalkanoimide, ethylene glycol glucoside stearate, oleic acid diethyl amide, polyoxyethylene nonylphenol ether OP-4, polyoxyethylene nonylphenol ether OP-7 and polyoxyethylene nonylphenol ether OP-10.
5. according to the drilling fluid micro emulsion white oil described in claim 1 or 2 or 3 or 4, it is characterized in that cosurfactant is more than one in sodium alkyl benzene sulfonate, alkyl sodium sulfonate, sodium lauryl sulphate and Sodium dodecylbenzene sulfonate; Or/and lubricant is that oleic acid or lubricant are that methyl esters or lubricant are the mixture of oleic acid and methyl esters.
6. the preparation method of micro emulsion white oil for a drilling fluid according to claim 1, it is characterized in that carrying out as follows: the major surfaces promoting agent of aequum is joined in the white oil of aequum and stir, add again the cosurfactant of aequum to stir, finally add the lubricant of aequum to stir and obtain drilling fluid micro emulsion white oil.
7. the preparation method of micro emulsion white oil for drilling fluid according to claim 6, is characterized in that white oil is 3
#white oil or 5
#white oil or 10
#white oil or 15
#white oil.
8. the preparation method with micro emulsion white oil according to the drilling fluid described in claim 6 or 7, is characterized in that major surfaces promoting agent is more than one in sorbitan monooleate, polyoxyethylene sorbitan monooleate, fatty alcohol-ether phosphoric acid ester, fatty monoethanol amide, cycloalkanoimide, ethylene glycol glucoside stearate, oleic acid diethyl amide, polyoxyethylene nonylphenol ether OP-4, polyoxyethylene nonylphenol ether OP-7 and polyoxyethylene nonylphenol ether OP-10.
9. the preparation method with micro emulsion white oil according to the drilling fluid described in claim 6 or 7 or 8, is characterized in that cosurfactant is more than one in sodium alkyl benzene sulfonate, alkyl sodium sulfonate, sodium lauryl sulphate and Sodium dodecylbenzene sulfonate; Or/and lubricant is that oleic acid or lubricant are that methyl esters or lubricant are the mixture of oleic acid and methyl esters.
One kind according to drilling fluid described in claim 1 or 2 or 3 or 4 or 5 using method with micro emulsion white oil, it is characterized in that carrying out as follows: in drilling process, by adding the micro emulsion white oil for drilling fluid of 50 kilograms to 1000 kilograms in every 1000 kg water base drilling fluids, in drilling fluid, add drilling fluid micro emulsion white oil, form oil-in-water-type emulsus drilling fluid.
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| CN104194744A (en) * | 2014-08-27 | 2014-12-10 | 克拉玛依市金鑫科技有限公司 | Drag inhibitor/reducer for drilling fluid and preparation method of drag inhibitor/reducer |
| CN104531096A (en) * | 2014-12-29 | 2015-04-22 | 河北光大石化有限公司 | Cleaning lubricant for drilling fluid and preparation method thereof |
| CN104745154A (en) * | 2015-04-08 | 2015-07-01 | 广汉市福客科技有限公司 | High-temperature-resistant degradable fatty acid derivative type integral emulsifier and preparation method thereof |
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| CN110804426A (en) * | 2019-11-15 | 2020-02-18 | 中国石油集团渤海钻探工程有限公司 | Synthetic base drilling fluid and preparation method thereof |
| US10844264B2 (en) | 2015-06-30 | 2020-11-24 | Exxonmobil Chemical Patents Inc. | Lubricant compositions comprising diol functional groups and methods of making and using same |
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