CN1331978C - Polyalcohol lubrication inhibitor for drilling fluid and application thereof - Google Patents
Polyalcohol lubrication inhibitor for drilling fluid and application thereof Download PDFInfo
- Publication number
- CN1331978C CN1331978C CNB2004100971098A CN200410097109A CN1331978C CN 1331978 C CN1331978 C CN 1331978C CN B2004100971098 A CNB2004100971098 A CN B2004100971098A CN 200410097109 A CN200410097109 A CN 200410097109A CN 1331978 C CN1331978 C CN 1331978C
- Authority
- CN
- China
- Prior art keywords
- drilling fluid
- polyalcohol
- alcohol
- polymeric alcohol
- lubrication
- 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.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 239000012530 fluid Substances 0.000 title claims abstract description 26
- 238000005461 lubrication Methods 0.000 title claims abstract description 17
- 239000003112 inhibitor Substances 0.000 title claims abstract description 13
- 150000005846 sugar alcohols Polymers 0.000 title claims abstract description 11
- 239000013505 freshwater Substances 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 43
- -1 polyoxyethylene Polymers 0.000 claims description 22
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 4
- 229930195729 fatty acid Natural products 0.000 claims description 4
- 239000000194 fatty acid Substances 0.000 claims description 4
- 150000002191 fatty alcohols Chemical class 0.000 claims description 4
- 229920001451 polypropylene glycol Polymers 0.000 claims description 4
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 230000005764 inhibitory process Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000012267 brine Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000002002 slurry Substances 0.000 description 21
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 13
- 239000000314 lubricant Substances 0.000 description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 239000000654 additive Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 5
- 235000011187 glycerol Nutrition 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 229940049964 oleate Drugs 0.000 description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-M 9-cis,12-cis-Octadecadienoate Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC([O-])=O OYHQOLUKZRVURQ-HZJYTTRNSA-M 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- ZXEKIIBDNHEJCQ-UHFFFAOYSA-N isobutanol Chemical compound CC(C)CO ZXEKIIBDNHEJCQ-UHFFFAOYSA-N 0.000 description 1
- 229940049918 linoleate Drugs 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- JSPLKZUTYZBBKA-UHFFFAOYSA-N trioxidane Chemical compound OOO JSPLKZUTYZBBKA-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
A polyalcohol lubrication inhibitor with dual functions of lubrication and inhibition for drilling fluid and application thereof comprise polyalcohol A with lubrication effect and polyalcohol B with inhibition effect, wherein the polyalcohol A accounts for 1-50 wt%, and the polyalcohol B accounts for 50-99 wt%, and the lubrication inhibitor is suitable for fresh water or brine or saturated brine drilling fluid, accounts for 1-10 wt% of the drilling fluid, has good lubrication performance and shale inhibition performance, and can be very beneficial to environmental protection.
Description
Technical field
The present invention relates to the water-based drilling solution additive, particularly relate to the polymeric alcohol additive with lubricated inhibition dual function, is a kind of polyalcohol lubrication inhibitor for well drilling liquid and application thereof specifically.
Background technology
Divide from dispersion medium, drilling fluid roughly can be divided into water-base drilling fluid and oil base drilling fluid two big classes.Water-base drilling fluid is safeguarded characteristics such as simple, that cost is low, environmental pollution is little because of its preparation, is widely used.But along with the expansion of Exploration Domain, the progress of drilling technique, conventional water-base drilling fluid can't satisfy the requirement to drilling fluid inhibition and oilness of orientation well, complicated well, big Multilateral Wells.This makes oil base drilling fluid be used within the specific limits.And the problem of environmental pollution that oil base drilling fluid in use brings makes it lose the upper hand gradually again.At the inhibition that how to improve water-base drilling fluid, oilness, done number of research projects, adding polymerization alcohols treatment agent in water-base drilling fluid is to improve a kind of effective ways that water-base drilling fluid shale suppresses ability and lubricity, and this method also has characteristics free from environmental pollution.
Polymeric alcohol is also referred to as polyvalent alcohol, compound alcohol.The polymeric alcohol that meets chemical strict difinition should be the alcohol that contains 2 or 2 above hydroxyls in the molecule.As glycerine, poly-glycol, ethylene glycol etc.Ethylene glycol or glycerol that U.S. Pat 2191312 proposes with 30% solve the geographic probing problem of water-sensitive, are that present polyhydroxy-alcohol is used for the stable embodiment the earliest of shale; U.S. Pat 5686396 discloses the inhibition that improves water-base drilling fluid with 10% Polyglycerine control hole stability, has also obtained result preferably; The mixture of U.S. Pat 4780220 usefulness glycerine Polyglycerine is controlled the drilling fluid rheology performance to reduce the problem of shale unstability as lubricant, the fluid loss agent of water-base drilling fluid; The oxyethyl group of U.S. Pat 5602082 usefulness 20% small molecular alcohol/propoxy-multipolymer control clay water divides diffusing, played the effect of down-hole complex accident generations such as keeping that wellbore stability prevents to cave in, WO95/28455 is used as the lubricant and the releasing stuck agent of environmentally safe with the ethoxy compound of long chain alkane and the product of isooctyl alcohol reaction.The type of the polymeric alcohol that has used at present has plurality of classes such as epoxy alcohol ether, EO/PO (ethylene oxide/propylene oxide) randomcopolymer.
Summary of the invention
The object of the present invention is to provide a kind of have good lubricity and shale inhibition energy, polyalcohol lubrication inhibitor for well drilling liquid and application thereof that can be very favourable to environment protection.
The present invention is achieved in that
Drilling fluid suppresses lubricant with polymeric alcohol, comprise the polymeric alcohol A of lubricate and play inhibiting polymeric alcohol B, wherein the weight percent of polymeric alcohol A is 1～50%, the weight percent of polymeric alcohol B is 50～99%, polymeric alcohol A is that cloud point is 5 ℃～20 ℃ polyoxyethylene fatty acid ester or a polyoxypropylene fatty acid ester, and polymeric alcohol B is that cloud point is 70 ℃～90 ℃ polyoxyethylene Fatty Alcohol(C12-C14 and C12-C18) or a polyoxypropylene Fatty Alcohol(C12-C14 and C12-C18).
Lubrication inhibitor is applied to prepare fresh water or salt solution or saturated salt-water drilling fluid, and lubrication inhibitor accounts for 1～10% of drilling fluid weight, and preferred 1～5%.
Also other additives can be added in the drilling fluid according to ordinary method, especially not add K
+The time, drilling fluid of the present invention has good lubricity and shale inhibition energy, and this is very favourable to environment protection.
Embodiment
Embodiment 1 has the polymeric alcohol A such as the table 1 of lubrication
The lubricated result of table 1 embodiment 1
| Routine number | The product title | Cloud point (℃) | Foaming rate (%) | Lubricating coefficient reduced rate S (%) |
| Embodiment 1-1 | The polyoxyethylene palmitate | 8 | 0 | 50 |
| Embodiment 1-2 | Polyoxyethylene stearic acid ester | 6 | 0 | 30 |
| Embodiment 1-3 | Polyoxyethylene oleate | 15 | 35 | 83 |
| Embodiment 1-4 | The polyoxyethylene linoleate | 12 | 25 | 70 |
| Embodiment 1-5 | Polyoxyethylene palmitate, polyoxyethylene oleate | 12 | 10 | 60 |
| Embodiment 1-6 | Polyoxyethylene oleate | 6 | 15 | 87 |
| Embodiment 1-7 | Polyoxyethylene oleate | 18 | 50 | 60 |
| Embodiment 1-8 | Polyoxyethylene oleate | 20 | 70 | 40 |
Annotate: lubricating coefficient reduced rate by formula (1) calculates:
In the formula:
S----------lubricating coefficient reduced rate, %
K
1----the lubricating coefficient of-----Ji slurry;
K
0----the lubricating coefficient of base slurry behind-----adding sample.
Embodiment 2 has the polymeric alcohol B such as the table 2 of lubrication
The inhibition result of table 2 embodiment 2
| Routine number | The product title | Cloud point (℃) | Cuttings recovery R (%) |
| Clear water | 5 | ||
| Embodiment 2-1 | The glycerol polyethenoxy ether | 74 | 8 |
| Embodiment 2-2 | The glycerol polyethenoxy ether | 70 | 10 |
| Embodiment 2-3 | The ethylene glycol polyethenoxy ether | 70 | 12 |
| Embodiment 2-4 | The isopropylcarbinol Soxylat A 25-7 | 90 | 15 |
| Embodiment 2-5 | The n-Octanol Soxylat A 25-7 | 91 | 30 |
| Embodiment 2-6 | Mountain plough polyoxyethylenated alcohol | 87 | 45 |
Annotate: cuttings recovery testing method: take by weighing 6-10 order rock sample 50g, put into the sealed cup that sample solution is housed, in the roller stove behind 77 ℃ ± 3 ℃ following rolling 16h, taking-up is cooled to room temperature, sieve and wash with 40 mesh standard sieves then, screenings is put into watch-glass, in (105 ± 3 ℃) oven dry down, take out cooling, and weigh after in air, placing 24h.By formula 2 calculate:
In the formula:
The R----------shale rate of recovery, %;
m
0---------rock sample proper mass, g;
m
1--------reclaims the quality of rock sample, g in the-sample solution;
Embodiment 3
Get lubricated component 1% of embodiment 1-6 and embodiment 2-4 and suppress component 98%, add 1% froth breaking component, after mixing, make polymeric alcohol and suppress lubricant, the mud property of this additive is as shown in table 3:
Table 3 polymeric alcohol suppresses the lubricant mud property
| Mud is formed | Apparent viscosity (mPa.s) | Plastic viscosity (mPa.s) | Yield value (Pa) | Filter loss (ml) | Lubricating coefficient reduced rate S (%) |
| 4% wilkinite fresh water slurry | 6.5 | 3.0 | 3.5 | 21.0 | |
| Base slurry+1% polymeric alcohol | 6.0 | 3.0 | 3.0 | 20.8 | 10 |
| Base slurry+3% polymeric alcohol | 6.0 | 3.0 | 3.0 | 20.8 | 25 |
| Base slurry+5% polymeric alcohol | 6.0 | 3.0 | 3.0 | 19.0 | 35 |
| Base slurry+8% polymeric alcohol | 6.0 | 3.0 | 3.0 | 19.2 | 45 |
Annotate: the base slurry is 4% a wilkinite fresh water slurry
Embodiment 4
Get lubricated component 49% of embodiment 1-8 and embodiment 2-2 and suppress component 50%, add 1% froth breaking component, after mixing, make polymeric alcohol and suppress lubricant, the mud property of this additive is as shown in table 4:
Table 4 polymeric alcohol suppresses the lubricant mud property
| Mud is formed | Apparent viscosity (mPa.s) | Plastic viscosity (mPa.s) | Yield value (Pa) | Filter loss (ml) | S (％) |
| 4% wilkinite fresh water slurry | 6.5 | 3.0 | 3.5 | 21.0 | |
| Base slurry+1% polymeric alcohol | 6.0 | 3.0 | 3.0 | 20.8 | 90％ |
| Base slurry+3% polymeric alcohol | 6.0 | 3.0 | 3.0 | 20.8 | 94％ |
| Base slurry+5% polymeric alcohol | 6.0 | 3.0 | 3.0 | 19.0 | 96％ |
| Base slurry+8% polymeric alcohol | 6.0 | 3.0 | 3.0 | 19.2 | 97％ |
Annotate: the base slurry is 4% a wilkinite fresh water slurry
Embodiment 5
Get lubricated component 10% of embodiment 1-4 and embodiment 2-1 and suppress component 88%, add 2% froth breaking component, after mixing, make polymeric alcohol and suppress lubricant, the mud property of this additive is as shown in table 5:
Table 5 polymeric alcohol suppresses the lubricant mud property
| Mud is formed | Apparent viscosity (mPa.s) | Plastic viscosity (mPa.s) | Yield value (Pa) | Filter loss (ml) | S (％) |
| 4% wilkinite fresh water slurry | 6.5 | 3.0 | 3.5 | 21.0 | |
| Base slurry+1% polymeric alcohol | 6.0 | 3.0 | 3.0 | 20.8 | 50％ |
| Base slurry+3% polymeric alcohol | 6.0 | 3.0 | 3.0 | 20.8 | 80％ |
| Base slurry+5% polymeric alcohol | 6.0 | 3.0 | 3.0 | 19.0 | 84％ |
| Base slurry+8% polymeric alcohol | 6.0 | 3.0 | 3.0 | 19.2 | 88％ |
Table 6 polymeric alcohol suppresses lubricant drilling cuttings recovery test result
| Sample | Cuttings recovery % |
| The 4%kcl aqueous solution | 28％ |
| The 5%kcl aqueous solution | 32％ |
| 3% embodiment 3 | 40％ |
| 3% embodiment 4 | 27％ |
| 3% embodiment 5 | 32％ |
| 4% embodiment 3 | 38％ |
Claims (3)
1, a kind of polyalcohol lubrication inhibitor for well drilling liquid, it is characterized in that comprising the polymeric alcohol A of lubricate and play inhibiting polymeric alcohol B, wherein the weight percent of polymeric alcohol A is 1～50%, the weight percent of polymeric alcohol B is 50～99%, polymeric alcohol A is that cloud point is 5 ℃～20 ℃ polyoxyethylene fatty acid ester or a polyoxypropylene fatty acid ester, and polymeric alcohol B is that cloud point is 70 ℃～90 ℃ polyoxyethylene Fatty Alcohol(C12-C14 and C12-C18) or a polyoxypropylene Fatty Alcohol(C12-C14 and C12-C18).
2, a kind of application of polyalcohol lubrication inhibitor for well drilling liquid is characterized in that the described lubrication inhibitor of claim 1 is applicable to fresh water or salt solution or saturated salt-water drilling fluid, and it accounts for 1～10% of drilling fluid weight,
3, the application of inhibitor according to claim 2 is characterized in that: described lubrication inhibitor accounts for the weight preferred 1～5% of drilling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100971098A CN1331978C (en) | 2004-12-09 | 2004-12-09 | Polyalcohol lubrication inhibitor for drilling fluid and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100971098A CN1331978C (en) | 2004-12-09 | 2004-12-09 | Polyalcohol lubrication inhibitor for drilling fluid and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1786102A CN1786102A (en) | 2006-06-14 |
| CN1331978C true CN1331978C (en) | 2007-08-15 |
Family
ID=36783716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100971098A Expired - Fee Related CN1331978C (en) | 2004-12-09 | 2004-12-09 | Polyalcohol lubrication inhibitor for drilling fluid and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1331978C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531888B (en) * | 2009-03-05 | 2010-12-29 | 荆州市伟创化工科技有限公司 | Shale-control agent for drilling fluid and preparation method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5793459B2 (en) | 2012-03-30 | 2015-10-14 | 新日鐵住金ステンレス株式会社 | Heat-resistant ferritic stainless steel cold-rolled steel sheet excellent in workability, ferritic stainless hot-rolled steel sheet for cold-rolled material, and production method thereof |
| JP6205407B2 (en) | 2013-03-06 | 2017-09-27 | 新日鐵住金ステンレス株式会社 | Ferritic stainless steel plate with excellent heat resistance |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052687A (en) * | 1989-11-28 | 1991-07-03 | 阿尔布赖特-威尔逊公司 | Functional liquid |
| CN1065674A (en) * | 1992-02-25 | 1992-10-28 | 华北石油管理局第二勘探公司 | Collapse-proof lubricant used for well drilling liquid and production technique thereof |
| CN1126745A (en) * | 1994-11-22 | 1996-07-17 | 法国石油研究所 | Lubricating composition including an esteruse of the composition and well fluid including the composition |
| CN1329125A (en) * | 2001-04-30 | 2002-01-02 | 中海石油技术服务公司 | Water-soluble drilling stuck freeing agent |
-
2004
- 2004-12-09 CN CNB2004100971098A patent/CN1331978C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1052687A (en) * | 1989-11-28 | 1991-07-03 | 阿尔布赖特-威尔逊公司 | Functional liquid |
| CN1065674A (en) * | 1992-02-25 | 1992-10-28 | 华北石油管理局第二勘探公司 | Collapse-proof lubricant used for well drilling liquid and production technique thereof |
| CN1126745A (en) * | 1994-11-22 | 1996-07-17 | 法国石油研究所 | Lubricating composition including an esteruse of the composition and well fluid including the composition |
| CN1329125A (en) * | 2001-04-30 | 2002-01-02 | 中海石油技术服务公司 | Water-soluble drilling stuck freeing agent |
Non-Patent Citations (1)
| Title |
|---|
| 油田化学 李辉 等，280.284，聚合醇在钻井液中的应用 2003 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531888B (en) * | 2009-03-05 | 2010-12-29 | 荆州市伟创化工科技有限公司 | Shale-control agent for drilling fluid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1786102A (en) | 2006-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110225954B (en) | Water-based drilling fluid lubricant | |
| CN103320104B (en) | A kind of water-in-oil-type biofuel base drilling fluid and preparation method thereof | |
| CN102851004B (en) | Biodegradable lubricant for drilling fluid and preparation method thereof | |
| CN111139044B (en) | Composite emulsifier for oil-based drilling fluid and high-temperature-resistant ultrahigh-density oil-based drilling fluid | |
| US8288324B2 (en) | Wellbore fluids comprising poly(trimethylene ether) glycol polymers | |
| CN103384708A (en) | Water-based drilling fluids containing crosslinked polyacrylic acid | |
| CN105505340A (en) | Environmental-protection type drilling fluid lubricant and preparation method thereof | |
| CN102851006A (en) | Bio-oil lubricant for drilling wells and preparation method of bio-oil lubricant | |
| CN103351852A (en) | Biodiesel lubricant for water-based drilling fluid and preparation method and application thereof | |
| CN109439294B (en) | Temperature-resistant and salt-resistant extreme pressure lubricant for high-density drilling fluid and preparation method thereof | |
| CN104877652A (en) | Lubricant and preparation method thereof | |
| CN108251078B (en) | Plugging type extreme pressure lubricant and preparation method and application thereof | |
| CN103848984A (en) | Shale inhibitor polyether polyol for drilling fluids, and preparation and application thereof | |
| CN102391841A (en) | Biodiesel drilling fluid lubricant and preparation method thereof | |
| US9945182B2 (en) | Method for drilling underground cavities, compositions comprising alkyl polyglycosides, and use thereof as a lubricant in the production of aqueous drilling muds | |
| CN109370544A (en) | Drilling fluid inhibition lubricant ether polymer and preparation method thereof | |
| CN103160258B (en) | A kind of drilling fluid lubrication defoamer and preparation method thereof | |
| CN1331978C (en) | Polyalcohol lubrication inhibitor for drilling fluid and application thereof | |
| CN107629767A (en) | A kind of drilling well lubricates seizureproof agent and its preparation method and application with oil base | |
| CN110105927A (en) | Low solid phase formates drilling and completing fluids resistant to high temperatures and preparation method thereof | |
| CN107257838A (en) | Method and material for the delayed crosslinked hydraulic fracturing with gelling agent | |
| CN104830292B (en) | A kind of drilling fluid less toxic low fluorescence lubricant and preparation method thereof | |
| BR112020018129A2 (en) | DRILLING FLUID UNDERSTANDING A LUBRICANT | |
| CN106398667A (en) | Water-based drilling fluid suitable for hard and brittle shale and preparation method thereof | |
| CN104341589B (en) | Oil field drilling fluids solid polymerization alcohol and preparation method thereof and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 |