CN102391841A - Biodiesel drilling fluid lubricant and preparation method thereof - Google Patents
Biodiesel drilling fluid lubricant and preparation method thereof Download PDFInfo
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- CN102391841A CN102391841A CN2011103014873A CN201110301487A CN102391841A CN 102391841 A CN102391841 A CN 102391841A CN 2011103014873 A CN2011103014873 A CN 2011103014873A CN 201110301487 A CN201110301487 A CN 201110301487A CN 102391841 A CN102391841 A CN 102391841A
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- drilling fluid
- biofuel
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- biodiesel
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Abstract
The invention belongs to the field of oilfield chemistry, and in particular relates to a lubricant based on biodiesel and applied to a water-based drilling fluid and a preparation method thereof. The biodiesel drilling fluid lubricant comprises biodiesel; and 80 to 120 milliliters of water, 4 to 10 grams of emulsifier and 2 to 6 grams of defoaming agent are added into every 100 milliliters of biodiesel. The biodiesel is used for substituting white oil and diesel oil and researched into the biodiesel drilling fluid lubricant suitable for the water-based drilling fluid; and the biodiesel drilling fluid lubricant has similar lubricating performance as an oil-based lubricant and can be perfectly dissolved with the water of the drilling fluid, and the whole system has good dispersity.
Description
Technical field
The invention belongs to the oilfield chemistry field, be specifically related to a kind of with the biofuel be the basis be applicable to lubricant of water-base drilling fluid and preparation method thereof.
Background technology
Drilling fluid is the circulatory mediator that uses in the drilling process.Drilling fluid is main suspension, pressure-controlling, rock stratum stability, buoyancy, the lubricated and refrigerative task accomplished in drilling process.Drilling fluid has: at the bottom of the clear well, cutting carring; Cooling and lubricated drill bit and drill string; Balance rock of borehole wall pressure, sealing and stabilizing borehole; Equilibrium strata pressure; Reduce the landwaste settling velocity; Can sink except that sand and landwaste on ground; Effectively transmit effective power; Bear drilling rod and telescopic part gravity; The great mass of data on the stratum of boring is provided; Through vital role such as hydrofracture rocks.
Along with the develop rapidly of oil and gas and geological exploration and development, modern drilling technique is had higher requirement to drilling fluid.Drilling fluid can be divided into oil base drilling fluid, water-base drilling fluid, gaseous type drilling fluid etc. by dispersion medium (external phase).The above two are drilling fluid commonly used in the present practical application.Drilling fluid mainly is made up of liquid phase, solid phase and chemical processing agent.Liquid phase can be water (fresh water, salt solution), oil (crude oil, diesel oil) or milk sap (contaminated product emulsion and rp-emulsification liquid); Solid phase includes with solid phase (wilkinite, high-density weighting material) and useless solid phase (rock); Chemical processing agent comprises inorganic, organic and macromolecular compound.
Oil base drilling fluid be with oil (mainly being diesel oil or crude oil) be dispersion medium, be the colloidal sol suspension mixed system of disperse phase with weighting agent, various chemical processing agent and water etc.Chinese patent CN102040973A, CN1506435A all disclose a kind of oil base drilling fluid.Advantages such as oil base drilling fluid has that lubricity is good, strong inhibition capability, borehole wall stability is good and heat-resisting property is good; But because it is to be dispersion medium with diesel oil or crude oil, be difficult to degraded, pollute the environment; On the other hand, because the burning-point of oil is lower, more likely there is potential safety hazard in the incendive characteristics of high temperature; And preparation cost is higher.
Water-base drilling fluid is to be the colloidal sol suspensoid mixed system of disperse phase with water as dispersion medium, with clay (wilkinite), weighting agent and various chemical processing agent.Chinese patent CN101501159A promptly discloses a kind of water-base drilling fluid.Water-base drilling fluid has advantages such as the source is abundant, cost is lower, pollutions is low, is subject to still that viscosity as the water of carrier is lower, film-forming properties is relatively poor, supporting capacity is low, makes water-base drilling fluid be difficult to break through the bottleneck of oilness deficiency, compressive property difference all the time; Therefore in drilling process,, prolong bit life in order to improve drilling speed; Reduce the number of times that makes a trip; Reduce drill bit and bore mud drum very, realize excellent fast drilling well, must add lubricant to reduce the sticking coefficient of moment of torsion and mud cake.At present, lubricant for drilling fluid has varied, and lubricant for drilling fluid at present commonly used is divided into mineral oil lubricant and two big types of vegetable oil lubricating agents, all is to be main with raising moment of torsion reduced rate.The staple of mineral oil lubricant is crude oil, diesel oil or white oil, though these oil product lubricities are better because contain factors such as aromatic hydrocarbons, flash-point are low, difficult degradation, produce and use in have environmental pollution and potential safety hazard; The staple of vegetable oil lubricating agent is Oleum Gossypii semen, vegetable seed wet goods, though there are problems such as poor high temperature stability, lubricity be slightly poor in relatively environmental protection of phase commute degraded.Also having some lubricant for drilling fluid in addition is the aqueous solution of simple tensio-active agent, is added in and forms oil-in-water emulsion drilling fluid in the drilling fluid, reduce the surface tension of drilling fluid, but the character of tensio-active agent itself has then limited its lubricity.
Summary of the invention
For this reason; Technical problem to be solved by this invention is that the lubricant that is applicable to water-base drilling fluid of the prior art can not satisfy simultaneously and is prone to degraded and lubricity problem preferably; Provide a kind of lubricity good, environmental protection is prone to degraded, biofuel lubricant for drilling fluid with low cost.
The present invention also provides the preparation method of above-mentioned biofuel lubricant for drilling fluid.
For solving the problems of the technologies described above, the invention discloses of the application of a kind of biofuel as the water-base drilling fluid lubricant.
The invention also discloses a kind of lubricant for drilling fluid and comprise following component:
Biofuel;
Water, every 100mL biofuel is added water 80-120mL;
Emulsifying agent, every 100mL biofuel is added said emulsifying agent 4-10g;
Skimmer, every 100mL biofuel is added said skimmer 2-6g.
Said lubricant for drilling fluid comprises following component:
Biofuel;
Water, every 100mL biofuel is added water 100mL;
Emulsifying agent, every 100mL biofuel is added said emulsifying agent 6g;
Skimmer, every 100mL biofuel is added said skimmer 4g.
Said biofuel is for being the biofuel of staple with the fatty acid methyl ester.
Said emulsifying agent selects tensio-active agent commonly used in the drilling fluid preparation field to get final product, for example sodium alkyl benzene sulfonate, glycerine or polyhydric alcohol fatty acid ester class tensio-active agent etc.Said emulsifying agent is the tensio-active agent of HLB value 9.5-10.5.
The HLB value is claimed hydrophile-lipophile balance value again, is meant that specifically hydrophilic and lipophilic group are to the comprehensive avidity of oil or water in the surfactant molecule.The notion of hydrophile-lipophile balance value is mainly used in the tensio-active agent Application Areas.All there is the relative hydrophile-lipophile balance value of himself in a broad sense in any material, and its hydrophile-lipophile balance value has determined the hydrophilic or oleophilicity of its material.
Said emulsifying agent preferably is made up of with the ratio of weight part ratio 1:1 with sodium oleate Si Ban-85.
Said skimmer can be selected the normal skimmer that uses in the prior art for use, is preferably PAPE.
Described water is tap water or fresh water underground, the face of land.
The preparation method of biofuel lubricant for drilling fluid of the present invention is: press selected weight fraction respectively with biofuel, emulsifying agent and skimmer and other auxiliary material additives add in the entry, and high-speed stirring is processed water external emulsion, or uses colloidal mill emulsification.Wherein the addition sequence of each additive does not have strict restriction.
" drilling fluid is used the liquid lubricant technical requirements " is China National Petroleum Corporation's company standard described in the specification sheets of the present invention, and standard is numbered Q/CNPC 88-2003, and be on July 1st, 2003 date issued.
Biofuel (biodiesel fuel) is a kind of form of biomass energy; It is to be the liquid fuel that raw material is processed with oil plant waterplant such as oil-yielding shrubs fruit, engineering microalgaes such as oil crops such as soybean and Semen Brassicae campestris, oil palm and Chinese pistache and animal oil and fat, useless food and drink wet goods, is the fine fuel substitute.Its major ingredient of biofuel is for the mixture of the higher fatty acid low-carbon alkyl that is transformed through animal-plant oil, such as the higher fatty acid methyl esters.
Common biofuel is meant that vegetable and animals oils and methyl alcohol carry out the fatty acid methyl ester that transesterify generates, and is a kind of biofuel of cleaning, also is referred to as " regeneration fuel oil ".At present, good to the exploitation situation of biofuel in the world, and the approach of manufacturing biofuel mainly contains three: the one, utilize the edible fat production biofuel; The 2nd, utilize bagasse fermentative prodn diesel oil; The 3rd, utilize " engineering microalgae " to produce diesel oil.
Technique scheme of the present invention is compared prior art and is had the following advantages:
1, the present invention replaces crude oil, diesel oil with biofuel; Be applicable to the biofuel lubricant for drilling fluid of water-base drilling fluid in order to development; Not only have and the akin lubricity of oil lubricant; And can dissolve each other whole system good dispersibility with the arbitrary proportion perfection with the water in the drilling fluid;
Only need less addition (0.5%) can reach the performance requriements of coefficient of friction resistance reduced rate >=65% of regulation in " drilling fluid is used the liquid lubricant technical requirements " when 2, biofuel lubricant for drilling fluid of the present invention is used for water-base drilling fluid, lubricity will obviously be superior to the lubricity of general water base lubricant (addition is 2%);
3, the nontoxic and very easily biological degradation of said lubricant for drilling fluid, pollution-free to whole drilling well system, safety and environmental protection;
4, the tensio-active agent of lubricant for drilling fluid interpolation HLB value 9.5-10.5 of the present invention fully reaches water oil balance as emulsifying agent, has guaranteed the stability of whole system;
5, in view of greatly developing of biodiesel fuel field now; It is lower to make that biofuel has a cost, advantage such as raw material sources are extensive, and it is low that biofuel lubricant of the present invention has a cost; Advantages such as raw material sources are extensive; Can significantly reduce the cost of ground drilling fluid, reduce pollution, thereby have very big application potential environment.
Embodiment
Below in conjunction with embodiment the present invention is further specified.Per-cent such as nothing among each embodiment particularly point out, and all be weight percentage, but used raw material all are commercially available in market.
1. biofuel: Shandong Huayang Oil Industry Co., Ltd;
2. PAPE: the calm and peaceful water treatment in Shandong ltd;
3. sodium oleate: Tianjin chemical reagent one factory;
4. Si Ban-85: the Tianjin five happinesses are with safe chemical industry ltd;
Embodiment 1:
Get the 100mL biofuel, and 10g emulsifying agent, 6g skimmer be added in the 120mL water, high-speed stirring is even, treats that each component is fully emulsified, promptly gets required biofuel lubricant for drilling fluid.
By the company standard Q/CNPC 88-2003 of China National Petroleum Corporation (CNPC) " drilling fluid is used the liquid lubricant technical requirements "; At 5% base slurry (every 100mL water dissolution 5g wilkinite; Add 2% (the said lubricant of every 100mL base slurry adding 2g down together); Down with) the biofuel lubricant for drilling fluid of above-mentioned preparation, the coefficient of friction resistance reduced rate that records drilling fluid is 82.86%, far above standard desired >=65%.
The lubricity that biofuel lubricant for drilling fluid according to the invention is described is good.
Embodiment 2
Get the 100mL biofuel, and 10g emulsifying agent, 6g skimmer be added in the 120mL water, high-speed stirring is even, treats that each component is fully emulsified, promptly gets required biofuel lubricant for drilling fluid.
Testing method by record among the company standard Q/CNPC 88-2003 of China National Petroleum Corporation (CNPC) " drilling fluid is used the liquid lubricant technical requirements "; At 5% base slurry (every 100mL water dissolution 5g wilkinite; The biofuel lubricant for drilling fluid that adds the above-mentioned preparation of 0.5% (the said lubricant of every 100mL base slurry adding 0.5g) down together); The coefficient of friction resistance reduced rate that records drilling fluid is 72.1%, be higher than standard desired >=65%.
The test data of embodiment 2 shows, only needs less addition can reach the performance requriements of coefficient of friction resistance reduced rate >=65% of regulation in " drilling fluid is used the liquid lubricant technical requirements " when biofuel lubricant for drilling fluid of the present invention is used for water-base drilling fluid.Lubricity will obviously be superior to the lubricity of general water base lubricant (addition is 2%), simultaneously also can realize that perfection dissolves each other stable in properties with water.
Embodiment 3:
Get 100mL fatty acid methyl ester biofuel; And 6g emulsifying agent, 2g PAPE skimmer are added in the 80mL water; High-speed stirring is even; Treat that each component is fully emulsified, promptly get required biofuel lubricant for drilling fluid, wherein said emulsifying agent is made up of with the ratio of weight part ratio 1:1 with sodium oleate Si Ban-85.
By the company standard Q/CNPC 88-2003 of China National Petroleum Corporation (CNPC) " drilling fluid is used the liquid lubricant technical requirements "; In 5% base slurry, add the 1% above-mentioned biofuel lubricant for drilling fluid that makes; Add 4%NaCl again and form saltwater environment; Record that the coefficient of friction resistance reduced rate of said drilling fluid is 81.32% before and after adding, far above standard desired >=65%.
Explain that the lubricity of biofuel lubricant for drilling fluid according to the invention in salt-water drilling fluid is good.
Embodiment 4:
Get 100mL fatty acid methyl ester biofuel, and 4g emulsifying agent, 4g PAPE skimmer add in the 100mL water, select colloidal mill emulsification for use, treat that each component is fully emulsified, promptly get required biofuel lubricant for drilling fluid.
In 5% basic slurry, add 2% prepared biological bavin drilling fluid oil lubricant, roll after the 16h through 150 ℃ of heat, recording the coefficient of friction resistance reduced rate that adds the said drilling fluid in front and back is 82.08%.
The heat-resisting property that biofuel lubricant for drilling fluid according to the invention is described is good.
Embodiment 5:
Get the 100mL biofuel; And 6g emulsifying agent, 4g PAPE skimmer add in the 100mL water; Select colloidal mill emulsification for use; Treat that each component is fully emulsified, promptly get required biofuel lubricant for drilling fluid, wherein said emulsifying agent is made up of with the ratio of weight part ratio 1:1 with sodium oleate Si Ban-85.By the company standard Q/CNPC 88-2003 of China National Petroleum Corporation (CNPC) " drilling fluid is used the liquid lubricant technical requirements "; The base slurry of preparation 5%; And to measure its API filtration according to national standard method of announcing in " water-base drilling fluid On-Site Test Procedure " be 16mL; AV is 9.0mPas, and PV is 4.5mPas, and yield value is 4.5Pa.In 5% base slurry, add 1% prepared biofuel lubricant for drilling fluid, measuring its API filtration is 15mL, and AV is 9.2mPas, and PV is 5.0mPas, and yield value is 4.2Pa.
Explain that biofuel lubricant for drilling fluid according to the invention does not have influence basically to the rheological and the leak-off property of drilling fluid.
Embodiment 6:
In 5% base slurry of preparation, add 1% embodiment, the 4 said biofuel lubricant for drilling fluid that make, the volume no change explains that biofuel lubricant for drilling fluid according to the invention is non-foaming in drilling fluid before and after the high-speed stirring.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (8)
1. a biofuel is as the application of water-base drilling fluid lubricant.
2. a lubricant for drilling fluid is characterized in that, said drilling well lubricant comprises following component:
Biofuel;
Water, every 100mL biofuel is added water 80-120mL;
Emulsifying agent, every 100mL biofuel is added said emulsifying agent 4-10g;
Skimmer, every 100mL biofuel is added said skimmer 2-6g.
3. lubricant for drilling fluid according to claim 2 is characterized in that, said lubricant for drilling fluid comprises following component:
Biofuel;
Water, every 100mL biofuel is added water 100mL;
Emulsifying agent, every 100mL biofuel is added said emulsifying agent 6g;
Skimmer, every 100mL biofuel is added said skimmer 4g.
4. according to claim 2 or 3 described lubricant for drilling fluid, it is characterized in that:
Said biofuel is for being the biofuel of staple with the fatty acid methyl ester.
5. according to claim 2 or 3 described lubricant for drilling fluid, it is characterized in that:
Said emulsifying agent is the tensio-active agent of HLB value 9.5-10.5.
6. lubricant for drilling fluid according to claim 5 is characterized in that:
Said emulsifying agent is made up of with the ratio of weight part ratio 1:1 with sodium oleate Si Ban-85.
7. according to claim 2 or 3 described lubricant for drilling fluid, it is characterized in that:
Said skimmer is a PAPE.
8. method for preparing the arbitrary described lubricant for drilling fluid of claim 2-7 is characterized in that: respectively by selected weight fraction with biofuel, emulsifying agent and skimmer add in the entry, promptly get after the emulsification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011103014873A CN102391841A (en) | 2011-10-09 | 2011-10-09 | Biodiesel drilling fluid lubricant and preparation method thereof |
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| CN2011103014873A CN102391841A (en) | 2011-10-09 | 2011-10-09 | Biodiesel drilling fluid lubricant and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851006A (en) * | 2012-09-30 | 2013-01-02 | 中国石油集团西部钻探工程有限公司 | Bio-oil lubricant for drilling wells and preparation method of bio-oil lubricant |
| CN103265940A (en) * | 2013-05-25 | 2013-08-28 | 西南石油大学 | Water base fracture drag reducer |
| CN103275678A (en) * | 2013-05-17 | 2013-09-04 | 潍坊天福化学科技有限公司 | Environmentally-friendly lubricant for drilling fluid and preparation method thereof |
| CN103756651A (en) * | 2014-01-06 | 2014-04-30 | 中国海洋石油总公司 | Biodiesel nano-emulsion as well as preparation method and application thereof |
| CN104610944A (en) * | 2014-12-31 | 2015-05-13 | 中国石油天然气集团公司 | Oil-in-water drilling fluid with vegetable oil as internal phase and preparation method of oil-in-water drilling fluid |
| CN105112029A (en) * | 2015-09-11 | 2015-12-02 | 中石化石油工程技术服务有限公司 | Bonding lubrication inhibitor and water-based drilling fluid containing same |
| CN105131914A (en) * | 2015-09-11 | 2015-12-09 | 中石化石油工程技术服务有限公司 | Ion adsorption type biological lubricant and water-based drilling fluid containing lubricant |
| CN105219359A (en) * | 2015-09-11 | 2016-01-06 | 中石化石油工程技术服务有限公司 | A kind of association type lubricant and the water-base drilling fluid containing this lubricant |
| CN105255457A (en) * | 2015-09-11 | 2016-01-20 | 中石化石油工程技术服务有限公司 | Crude-oil-like biologic lubricant and water-based drilling fluid containing said lubricant |
| CN108130058A (en) * | 2018-01-11 | 2018-06-08 | 日照职业技术学院 | A kind of new application of brew wine waste residue |
| 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 |
| CN113185954A (en) * | 2021-05-20 | 2021-07-30 | 巴州三元石油助剂有限公司 | Lubricant for drilling fluid and preparation method thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102851006A (en) * | 2012-09-30 | 2013-01-02 | 中国石油集团西部钻探工程有限公司 | Bio-oil lubricant for drilling wells and preparation method of bio-oil lubricant |
| CN103275678A (en) * | 2013-05-17 | 2013-09-04 | 潍坊天福化学科技有限公司 | Environmentally-friendly lubricant for drilling fluid and preparation method thereof |
| CN103275678B (en) * | 2013-05-17 | 2015-09-02 | 潍坊天福化学科技有限公司 | A kind of Environment-protecting Drilling Fluids lubricant and preparation method thereof |
| CN103265940A (en) * | 2013-05-25 | 2013-08-28 | 西南石油大学 | Water base fracture drag reducer |
| CN103265940B (en) * | 2013-05-25 | 2014-06-11 | 西南石油大学 | Water base fracture drag reducer |
| CN103756651A (en) * | 2014-01-06 | 2014-04-30 | 中国海洋石油总公司 | Biodiesel nano-emulsion as well as preparation method and application thereof |
| CN104610944A (en) * | 2014-12-31 | 2015-05-13 | 中国石油天然气集团公司 | Oil-in-water drilling fluid with vegetable oil as internal phase and preparation method of oil-in-water drilling fluid |
| CN105131914A (en) * | 2015-09-11 | 2015-12-09 | 中石化石油工程技术服务有限公司 | Ion adsorption type biological lubricant and water-based drilling fluid containing lubricant |
| CN105112029A (en) * | 2015-09-11 | 2015-12-02 | 中石化石油工程技术服务有限公司 | Bonding lubrication inhibitor and water-based drilling fluid containing same |
| CN105219359A (en) * | 2015-09-11 | 2016-01-06 | 中石化石油工程技术服务有限公司 | A kind of association type lubricant and the water-base drilling fluid containing this lubricant |
| CN105255457A (en) * | 2015-09-11 | 2016-01-20 | 中石化石油工程技术服务有限公司 | Crude-oil-like biologic lubricant and water-based drilling fluid containing said lubricant |
| CN105131914B (en) * | 2015-09-11 | 2017-11-24 | 中石化石油工程技术服务有限公司 | A kind of ion type biological lubricants and the water-base drilling fluid containing the lubricant |
| CN105112029B (en) * | 2015-09-11 | 2017-11-24 | 中石化石油工程技术服务有限公司 | Bonding type lubrication inhibitor and the water-base drilling fluid containing bonding type lubrication inhibitor |
| CN108130058A (en) * | 2018-01-11 | 2018-06-08 | 日照职业技术学院 | A kind of new application of brew wine waste residue |
| 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 |
| CN113185954A (en) * | 2021-05-20 | 2021-07-30 | 巴州三元石油助剂有限公司 | Lubricant for drilling fluid and preparation method thereof |
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Application publication date: 20120328 |