CN103834368B - Drilling fluid efficient non-fluorescence lubricant and preparation method thereof - Google Patents

Drilling fluid efficient non-fluorescence lubricant and preparation method thereof Download PDF

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Publication number
CN103834368B
CN103834368B CN201410077636.6A CN201410077636A CN103834368B CN 103834368 B CN103834368 B CN 103834368B CN 201410077636 A CN201410077636 A CN 201410077636A CN 103834368 B CN103834368 B CN 103834368B
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China
Prior art keywords
lubricant
fluorescence
stirring
nano material
efficient
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Expired - Fee Related
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CN201410077636.6A
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Chinese (zh)
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CN103834368A (en
Inventor
王在明
朱宽亮
徐小峰
侯怡
李睿
冯京海
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Petrochina Co Ltd
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DRILLING TECHNOLOGY RESEARCH INSTITUTE JIDONG OILFIELD BRANCH OF CNPC
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Priority to CN201410077636.6A priority Critical patent/CN103834368B/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02Well-drilling compositions
    • C09K8/03Specific additives for general use in well-drilling compositions
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02Well-drilling compositions
    • C09K8/03Specific additives for general use in well-drilling compositions
    • C09K8/035Organic additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2208/00Aspects relating to compositions of drilling or well treatment fluids
    • C09K2208/34Lubricant 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

A kind of drilling fluid efficient non-fluorescence lubricant and preparation method thereof, this non-fluorescence lubricant take synthetic base oil as main raw material, the moiety and the parts by weight that form non-fluorescence lubricant are: the moiety and the parts by weight that form non-fluorescence lubricant are: synthetic base oil 95 ~ 98 parts, efficient extreme-pressure additive 0.5 ~ 1 part, the nano material of surface modification 0.8 ~ 1.5 part.Get the nano material of synthetic base oil, efficient extreme-pressure additive, surface modification by weight, synthetic base oil is added container for stirring heating, add efficient extreme-pressure additive while stirring; After stopping stirring, continue add the nano material of surface modification in container after stir and heat, obtain free flowable liquid lubricant finished product.The present invention has good adsorptivity, anti-extreme pressure ability of resistance to wearing, nontoxic unstressed configuration, with the advantage such as drilling fluid compatibleness is better, play no role in geological logging and can not impact the discovery of new oil reservoir.

Description

Drilling fluid efficient non-fluorescence lubricant and preparation method thereof
Technical field
The present invention relates to a kind of lubricant for drilling fluids, particularly relate to a kind of for deep-well,
A kind of drilling fluid efficient non-fluorescence lubricant and preparation method thereof required in ultra deep well, High angle extended reach well drilling process.
Background technology
In recent years, along with the continuous expansion of petroleum exploration domain, the quantity of deep-well, ultra deep well, Large travel range long horizontal traverse well increases year by year, and drilling strata condition is day by day complicated, and fluorescence and lubrication become one of main bugbear that drilling well faces.In drilling process, along with the degree of depth increases, bottom temperature and pressure increase all thereupon, in drilling fluid, lubricant can be degraded, oilness reduces, and lock of tool drilling and other all kinds of down hole problems such as sticky card, slump in bit freezing and undergauge bit freezing easily occur, and effectively can not reduce moment of torsion and the frictional resistance of drill string; For drilling fluid will be kept to have good oilness, need constantly in drilling fluid, to add lubricant, the lubricant desired number such as lubricant, white oil, crude oil, graphite commonly used at present greatly, costly, has fluorescence and lubricant effect is undesirable.
Therefore, in the urgent need to a kind of novel lubricant for drilling fluids, require unstressed configuration, good stability, high lubricating effect, severe contamination can not be produced to environment, play no role in geological logging and can not impact the discovery of new oil reservoir.
Summary of the invention
Fluorescence and problem is costly contained in order to solve the lubricant such as lubricant, white oil crude oil conventional at present, the present invention one is to provide a kind of unstressed configuration, good stability, high lubricating effect, severe contamination can not be produced to environment, play no role in geological logging and the efficient non-fluorescence lubricant of a kind of drilling fluid that can not impact the discovery of new oil reservoir, two are to provide the preparation method of a kind of drilling fluid with efficient non-fluorescence lubricant.
Realize above-mentioned purpose by the following technical solutions: the efficient non-fluorescence lubricant of a kind of drilling fluid, this non-fluorescence lubricant take synthetic base oil as main raw material, the moiety and the parts by weight that form non-fluorescence lubricant are: synthetic base oil 95 ~ 98 parts, efficient extreme-pressure additive 0.5 ~ 1 part, the nano material of surface modification 0.8 ~ 1.5 part.
Further, described synthetic base oil is one or the mixture of poly-alpha olefins, synthetic ester or polyethers.
Further, described efficient extreme-pressure additive selects sulfurized olefin cotton oil, sulfide isobutene, di-n-butyl phosphite, boratory one or mixture.
Further, the nano material of described surface modification selects Dimolybdenum trisulfide nano material or ultra-fine tetrafluoroethylene molecular material.The object of surface modification is better dispersed in oil phase, prevents nano material from reuniting.
A drilling fluid preparation method for efficient non-fluorescence lubricant, described method comprises the steps:
A. count by weight, get synthetic base oil 95 ~ 98 parts, efficient extreme-pressure additive 0.5 ~ 1 part, the nano material of surface modification 0.8 ~ 1.5 part;
B. synthetic base oil is added container for stirring and be heated to 44 ~ 46 DEG C, add while stirring
Enter efficient extreme-pressure additive, stir 30 minutes;
C., after stopping stirring, continue add the nano material of surface modification in container after stir and be heated to 50-55 DEG C, obtain yellow-green colour or the free flowable liquid lubricant finished product of brown color.
Further, described method is carried out in the steps below:
A. mark meter by weight, gets poly-alpha olefins 98 parts, sulfurized olefin cotton oil 0.5 part, Dimolybdenum trisulfide nano material 1.5 parts;
B. poly-alpha olefins is added container for stirring and be heated to 45 DEG C, add sulfurized olefin cotton oil while stirring, stir 30 minutes;
C., after stopping stirring, in container, add Dimolybdenum trisulfide nano material continue stir and be heated to 55 DEG C, obtain the free-pouring liquid lubricant finished product of yellow-green colour.
Adopt technique scheme, compared with prior art, the efficient non-fluorescence lubricant of drilling fluid of the present invention have employed the nano material of synthetic base oil, efficient extreme-pressure additive and surface modification, and the nano material of surface modification better can be dispersed in oil phase, prevents nano material from reuniting.Have high lubricating effect, preferably adsorptivity, anti-extreme pressure ability of resistance to wearing, nontoxic unstressed configuration, with the advantage such as drilling fluid compatibleness is better, in addition, the present invention plays no role in geological logging and can not impact the discovery of new oil reservoir, can not produce severe contamination to environment.
Embodiment:
Below in conjunction with embodiment, the invention will be further described.
The invention discloses the efficient non-fluorescence lubricant of a kind of drilling fluid, this non-fluorescence lubricant take synthetic base oil as main raw material, and its moiety is: synthetic base oil, efficient extreme-pressure additive, oil solubility nanometer material.
Synthetic base oil selects one or the mixture of poly-alpha olefins, synthetic ester or polyethers.
Efficient extreme-pressure additive selects sulfurized olefin cotton oil, sulfide isobutene, di-n-butyl phosphite, boratory one or mixture.
The nano material of surface modification selects Dimolybdenum trisulfide nano material or ultra-fine tetrafluoroethylene molecular material.
The composition of non-fluorescence lubricant and preparation method's embodiment:
Embodiment 1:
Count by weight, poly-alpha olefins 98 parts, sulfurized olefin cotton oil 0.5 part, Dimolybdenum trisulfide nano material 1.5 parts.
Poly-alpha olefins is added container for stirring and be heated to about 45 DEG C, add sulfurized olefin cotton oil while stirring, then continue stir and be heated to about 50 DEG C after stopping stirring adding Dimolybdenum trisulfide nano material, obtain the free flowable liquid lubricant finished product of yellow-green colour.
Embodiment 2
Count by weight, get synthetic ester 95 parts, sulfide isobutene 1 part, ultra-fine tetrafluoroethylene molecular material 1 part.
Synthetic ester is added container for stirring and be heated to about 46 DEG C, add sulfide isobutene while stirring, then continue stir and be heated to about 55 DEG C after stopping stirring adding ultra-fine tetrafluoroethylene molecular material, obtain the free flowable liquid lubricant finished product of yellow-green colour.
Embodiment 3
Prepare the mixture of poly-alpha olefins and polyethers.
By di-n-butyl phosphite, borate mixing, obtain the mixture of the two.
Count by weight, get the mixture 96 parts of alpha-olefin and polyethers, di-n-butyl phosphite, borate mixture 0.8 part, Dimolybdenum trisulfide nano material 1.5 parts.
The mixture of alpha-olefin and polyethers is added container for stirring and is heated to about 44 DEG C, add di-n-butyl phosphite, borate mixture while stirring, then continue stir and be heated to about 54 DEG C after stopping stirring adding ultra-fine tetrafluoroethylene molecular material, obtain the free flowable liquid lubricant finished product of yellow-green colour.
The embodiment 4 drilling fluid of the present invention testing experiment of efficient non-fluorescence lubricant
Test 1: highly-efficient lubricant oil film strength and supporting capacity measure
Use four-ball tester to measure lubricant, compare with white oil, the both at home and abroad highly-efficient lubricant of renowned company simultaneously, the results are shown in Table 1
Table 1 oil film strength and supporting capacity measure
Note: PB value: last non seizure load (oil film strength)
PD value: sintering load (the maximal work ability of lubricant)
Mensuration, comparison can find out that efficient non-fluorescence lubricant has excellent PB value and PD value by experiment, lubricate needs under meeting mal-condition.
Test 2: highly-efficient lubricant antiwear property measures
Use four-ball tester to measure lubricant, compare with white oil, the both at home and abroad highly-efficient lubricant of renowned company simultaneously, the results are shown in Table 2
Table 2 antiwear property measures
Above-described embodiment only have expressed one embodiment of the present invention, but therefore can not be interpreted as limitation of the scope of the invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.

Claims (1)

1. the efficient non-fluorescence lubricant of drilling fluid, this non-fluorescence lubricant take synthetic base oil as main raw material, it is characterized in that, the preparation method of this non-fluorescence lubricant comprises the steps: that a. counts by weight, get poly-alpha olefins 98 parts, sulfurized olefin cotton oil 0.5 part, Dimolybdenum trisulfide nano material 1.5 parts; B. poly-alpha olefins is added container for stirring and be heated to 45 DEG C, add sulfurized olefin cotton oil while stirring, stir 30 minutes; C., after stopping stirring, in container, add Dimolybdenum trisulfide nano material continue stir and be heated to 55 DEG C, obtain the free-pouring liquid lubricant finished product of yellow-green colour.
CN201410077636.6A 2014-03-05 2014-03-05 Drilling fluid efficient non-fluorescence lubricant and preparation method thereof Expired - Fee Related CN103834368B (en)

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Publication number Priority date Publication date Assignee Title
CN105086954B (en) * 2015-07-28 2018-05-04 中国石油集团渤海钻探工程有限公司 Lubricant for drilling fluids and preparation method thereof
CN109306262A (en) * 2017-07-28 2019-02-05 中国石油天然气股份有限公司 A kind of drilling fluid and its preparation method and application for high angle hole

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1699500A (en) * 2005-06-21 2005-11-23 山东大学 Particle stabilized emulsion system and method for preparing same and its use as lubricant for drilling fluid
CN1804016A (en) * 2005-12-23 2006-07-19 江汉石油钻头股份有限公司 Self-repairing multi-soap based composite bearing lubricating grease and preparation method thereof
CN102863946A (en) * 2011-07-08 2013-01-09 长江大学 High-temperature-resistant lubricating agent of drilling fluid
CN103436241A (en) * 2013-08-08 2013-12-11 中国石油天然气集团公司 Nano film-embedded emulsion lubricant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1699500A (en) * 2005-06-21 2005-11-23 山东大学 Particle stabilized emulsion system and method for preparing same and its use as lubricant for drilling fluid
CN1804016A (en) * 2005-12-23 2006-07-19 江汉石油钻头股份有限公司 Self-repairing multi-soap based composite bearing lubricating grease and preparation method thereof
CN102863946A (en) * 2011-07-08 2013-01-09 长江大学 High-temperature-resistant lubricating agent of drilling fluid
CN103436241A (en) * 2013-08-08 2013-12-11 中国石油天然气集团公司 Nano film-embedded emulsion lubricant

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Inventor after: Wang Zaiming

Inventor after: Zhu Kuanliang

Inventor after: Xu Xiaofeng

Inventor after: Hou Yi

Inventor after: Li Rui

Inventor after: Feng Jinghai

Inventor before: Wang Zaiming

Inventor before: Zhu Kuanliang

Inventor before: Xu Xiaofeng

Inventor before: Hou Yi

Inventor before: Li Rui

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: WANG ZAIMING ZHU KUANLIANG XU XIAOFENG HOU YI LI RUI TO: WANG ZAIMING ZHU KUANLIANG XU XIAOFENG HOU YI LI RUI FENG JINGHAI

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Effective date of registration: 20200921

Address after: 100000 Beijing city Dongcheng District No. 16 Andrew

Patentee after: PetroChina Company Limited

Address before: 063000 drilling and Processing Research Institute, Jidong Oil field, No. 51 Guangming West, Tangshan City Road, Hebei Province

Patentee before: PetroChina Company Limited

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Granted publication date: 20160427

Termination date: 20210305