CN103275684A - Oilfield hot-washing oil-base high-efficiency paraffin-removal paraffin inhibitor - Google Patents
Oilfield hot-washing oil-base high-efficiency paraffin-removal paraffin inhibitor Download PDFInfo
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- CN103275684A CN103275684A CN2013102243520A CN201310224352A CN103275684A CN 103275684 A CN103275684 A CN 103275684A CN 2013102243520 A CN2013102243520 A CN 2013102243520A CN 201310224352 A CN201310224352 A CN 201310224352A CN 103275684 A CN103275684 A CN 103275684A
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Abstract
The invention discloses an oilfield hot-washing oil-base high-efficiency paraffin-removal paraffin inhibitor which belongs to an oilfield cleaning chemical product and is characterized by comprising the following components: by weight, 5-15% of a lubricant, 5-15% of a surfactant, 15-25% of a diluent, 10-20% of an osmotic agent and 40-50% of reformed heavy oil, wherein the lubricant is pyrolysis oil or aromatic hydrocarbon or aluminium foil oil; the surfactant is fatty acid methyl ester or oleic acid; the diluents is solvent naphtha or a thinner; and the osmotic agent is polyol or butanol. The optimum weight percentages are as follows: 10 wt% of the lubricant, 10 wt% of the surfactant, 20 wt% of the diluents, 15 wt% of osmotic agent, and 45 wt% of the reformed heavy oil. The invention provides a paraffin remover and inhibitor, which has functions of removing paraffin, controlling paraffin, dissolving paraffin, reducing viscosity of crude oil and removing plug. Meanwhile, a lot of dirt adhered to a pipeline also can be removed. The oilfield hot-washing oil-base high-efficiency paraffin-removal paraffin inhibitor can be simply and conveniently used in oilfield, has excellent effects of dissolving paraffin and removing plug, and is used to greatly enhance the flow effect of crude oil.
Description
Technical field:
The invention belongs to Daqing oil field down-hole auxiliary agent product, be specifically related to the efficient wax removal of the hot washing oil base in a kind of oil field, paraffin inhibitor chemical.
Background technology:
In the process that Daqing oil field is produced, need regularly oil well to be carried out wax removal heat and wash, the present existing dewaxing method of Daqing oil field is that High Temperature High Pressure heat is washed method and the clear cured method of water base high molecular.Conventional heat is washed the oil well output influence bigger, and water discharge time is long, causes formation contaminant after a part of low energy well heat is washed, and output is difficult to return to normal level behind the well-flushing, and severe patient kills well.Cause the elongation of pipe bar inconsistent after heat is washed, dead space shortens, and causes to bump pump, rod sag, disconnected bar, the serious consequence of sleeve pipe rising displacement.The water base high molecular wax removing agent is the paraffin remover that grand celebration is used at present, the water base high molecular wax removing agent is added by the sleeve pipe annular space, because well fluid level is generally at 500-600 rice, because the water base high molecular wax removing agent is water-soluble, after filling, diluted by water, can't arrive the shaft bottom, greatly reduce dissolving power, not reach molten wax effect.Like this, a bite recovery well is wanted filled with water based high molecular wax removing agent, also will regularly wash oil well heat, causes the serious problems of the high consumption of Daqing oil field low yield.
Summary of the invention:
Purpose of the present invention: produce a kind of wax removing agent with wax removal, wax control, molten wax, reducing crude oil viscosity, de-plugging, can remove a large amount of dirts that adhere on the duct wall simultaneously, save cost, effect is more obvious, replaces traditional hot-washing wax remover agent.
The technical solution adopted for the present invention to solve the technical problems is: the efficient wax removal of the hot washing oil base in oil field, paraffin inhibitor chemical, it is characterized in that being formed by lubricant, tensio-active agent, thinner, permeate agent and reformation heavy oil, each weight percentages of components is: lubricant accounts for 5%～15%, surfactant comprise 5%～15%, thinner accounts for 15%～25%, permeate agent accounts for 10%～20%, and reformation heavy oil accounts for 40%～50%; Lubricant is cracked oil or aromatic hydrocarbons or aluminium foil oil, and tensio-active agent is fatty acid methyl ester or oleic acid; Thinner is solvent oil or solvent or diluent; Permeate agent is polyvalent alcohol or butanols.
Preferred each weight percentages of components is: cracked oil 10%; Fatty acid methyl ester 10%; Solvent oil 20%; Polyvalent alcohol 15%; Reformation heavy oil 45%.
The invention has the beneficial effects as follows: composition itself have environmental protection characteristic; Compare with existing water base high molecular paraffin remover, the molten wax speed of this product is fast, effective; Not moisture and do not dissolve each other with water, pollution-free to oil reservoir and crude oil; Do not contain the strong acid and strong base material, Crude Oil Transportation, processing, refining equipment are not had corrosion, also have the output of increasing, save electric energy, save advantages such as Sweet natural gas and saving working costs.
Embodiment:
Test by following proportional quantity:
Scheme 1: cracked oil 5%, fatty acid methyl ester 5%, solvent oil 25%, polyvalent alcohol 20%, reformation heavy oil 45% mix joins.
Scheme 2: cracked oil 10%, fatty acid methyl ester 10%, solvent oil 20%, polyvalent alcohol 15%, reformation heavy oil 45% mix joins.
Scheme 3: cracked oil 15%, fatty acid methyl ester 15%, solvent oil 15%, polyvalent alcohol 10%, reformation heavy oil 45% mix joins.
Adopt static molten wax method that scheme 1 to 3 is made thing and carry out molten wax performance measurement, concrete steps are as follows:
Get the efficient wax removal of the hot washing oil base in oil field, each 20 mL of paraffin inhibitor chemical of obtaining after scheme 1 to 3 proportioning, put into the test tube that 100 mL crude oil is housed in three respectively, test tube is put into 50 ℃ of waters bath with thermostatic control place 20 min, add No. 57 Chinese wax of 1 g more respectively, record dissolves required time fully, and the result is as follows:
Data in the scheme 1 are: put into 2 minutes Chinese wax and begin dissolving, rear section dissolving in 4 minutes stopped dissolving after 13 minutes, and Chinese wax deposits to below the oil reservoir fully, can know and see separating layer.The per-cent of molten wax is about 80%.
Data in the scheme 2 are: put into 1 minute Chinese wax and begin dissolving, rear section dissolving in 3 minutes stopped dissolving after 10 minutes, and Chinese wax deposits to below the oil reservoir fully, can know and see separating layer.The per-cent of molten wax is about 85%.
Data in the scheme 3 are: put into 3 minutes Chinese wax and begin dissolving, rear section dissolving in 5 minutes stopped dissolving after 15 minutes, and Chinese wax deposits to below the oil reservoir fully, can know and see separating layer.The per-cent of molten wax is about 80%.
Cracked oil in above-mentioned three schemes is lubricant, and also available aromatic hydrocarbons or aluminium foil oil substitutes; Fatty acid methyl ester is tensio-active agent, and also available oleic acid substitutes; Solvent oil is thinner, and also available solvent or diluent substitutes; Polyvalent alcohol is for seeing through agent, and also available butanols substitutes, and alternate embodiment is as follows.
Scheme 4: aromatic hydrocarbons 5%, fatty acid methyl ester 5%, solvent oil 25%, butanols 20%, reformation heavy oil 45% mix joins.
Scheme 5: aromatic hydrocarbons 10%, fatty acid methyl ester 10%, solvent oil 20%, butanols 15%, reformation heavy oil 45% mix joins.
Scheme 6: aromatic hydrocarbons 15%, fatty acid methyl ester 15%, solvent oil 15%, butanols 10%, reformation heavy oil 45% mix joins.
Adopt static molten wax method that scheme 1 to 3 is made thing and carry out molten wax performance measurement, concrete steps are as follows: get the efficient wax removal of the hot washing oil base in oil field, each 20 mL of paraffin inhibitor chemical of obtaining after above-mentioned three kinds of scheme proportionings, put into three test tubes that 100 mL crude oil are housed respectively, test tube is put into 50 ℃ of waters bath with thermostatic control place 20 min, add No. 57 Chinese wax of 1 g more respectively, record dissolves required time fully, and the result is as follows:
Data in the scheme 4 are: put into 2 minutes Chinese wax and begin dissolving, rear section dissolving in 4 minutes stopped dissolving after 13 minutes, and Chinese wax deposits to below the oil reservoir fully, can know and see separating layer.The per-cent of molten wax is about 80%.
Data in the scheme 5 are: put into 1 minute Chinese wax and begin dissolving, rear section dissolving in 3 minutes stopped dissolving after 10 minutes, and Chinese wax deposits to below the oil reservoir fully, can know and see separating layer.The per-cent of molten wax is about 85%.
Data in the scheme 6 are: put into 3 minutes Chinese wax and begin dissolving, rear section dissolving in 5 minutes stopped dissolving after 15 minutes, and Chinese wax deposits to below the oil reservoir fully, can know and see separating layer.The per-cent of molten wax is about 80%.
Wax control result is measured:
The efficient wax removal of the hot washing oil base in oil field, paraffin inhibitor chemical and the oil field polymer wax removing agent commonly used that above-mentioned six schemes are made compares, get representational well in operation shaft bottom solid wax, add the efficient wax removal of the hot washing oil base in oil field, paraffin inhibitor chemical and polymer wax removing agent that above-mentioned six schemes make respectively, after the overtesting contrast, add the process that can clearly see molten wax in the tester of the efficient wax removal of the hot washing oil base in oil field of the present invention, paraffin inhibitor chemical, and and crude separation; Add in the tester of polymer wax removing agent, the speed of molten wax is slow, and does not separate with the crude oil mixing.
Using method:
1, paraffin removal from oil well;
The efficient wax removal of the hot washing oil base in oil field, paraffin inhibitor chemical, the 600-800 kilogram is squeezed into the oil jacket space from sleeve gate, by the time oil well pump; behind the efficient wax removal of the hot washing oil base in the complete suction of oil pipe oil field, paraffin inhibitor chemical; shut down, soak after about 4-6 hour, start oil pumper and get final product.
2, oil pipeline wax removal;
According to pipeline length and wax deposition amount what, with a certain amount of paraffin remover flow in pipes, soak reaction 4-6 hour with ram pump or cementing truck, suppress defeated logical getting final product.
Can reach following 5 benefits:
1 volume increase: use the efficient wax removal of the hot washing oil base in this oil field, paraffin inhibitor chemical to replace heat to wash, do not influence the oil well ordinary production, reduced the load of oil pumper, increased the service efficiency of oil pumper, improve the production status of oil well, reduced the loss of output, improved oil well production efficient, follow the crude oil extraction after the dilution, increased crude production rate.With 2 tons of calculating of individual well daily output crude oil, heat is washed the draining fate and was calculated by 5 days, and year heat is washed by 12 times and calculated, 120 tons of the annual incremental oil productions of individual well calculate 600,000 tons of year incremental oil productions with the 5000 mouthfuls of oil wells in certain oil recovery factory, with 6500 yuan of calculating of present world market crude oil price, 3,900,000,000 yuan of year increase output values.
2 economize on electricitys: use the efficient wax removal of the hot washing oil base in this oil field, paraffin inhibitor chemical to reduce the load of oil pumper, reduced the oil pumper electric energy loss.Substituting hot washing has also reduced the power consumption that joint station heat is washed pump motor, calculate with conventional pumping unit individual well consumes power every day 85 degree, heat is washed draining and was calculated by 5 days, year, well-flushing was by 12 calculating, individual well year economize on electricity 5100 degree calculate with the 5000 mouthfuls of oil wells in certain oil recovery factory, year economize on electricity 2,550 ten thousand degree, with 1 yuan of calculating of the every degree of present electricity price for industrial uses, 2,550 ten thousand yuan of year economize on electricitys.
3 save Sweet natural gas: the average individual well of hot washing oil wells uses the Sweet natural gas heating to need 200 cubic metres of Sweet natural gases, 2 yuan of calculating of every cubic metre of price, and year well-flushing calculates by 12 times, calculates the annual Sweet natural gas expense of saving more than 2,400 ten thousand with the 5000 mouthfuls of oil wells in certain oil recovery factory.
4 water savings: hot washing oil wells once needs 45 cubes of hot water, and heat is washed 12 times every year on average, presses 5 yuan/m3 of industrial water fee and calculates, and calculates 1,350 ten thousand yuan of annual water savings with the 5000 mouthfuls of oil wells in certain oil recovery factory.
5 save operating cost: use the efficient wax removal of the hot washing oil base in this oil field, paraffin inhibitor chemical to prevent the wax deposition of oil well, reduced the number of times of oil well because of the operation of wax card, reduce the maintenance cost of oil well, increased the effective production time of oil well, reached the purpose that real consumption reduction increases production.Calculate with individual well operating cost 30,000, year 2 subjobs are calculated, and calculate with the 5000 mouthfuls of oil wells in certain oil recovery factory, can save 300,000,000 yuan of operating costs.
Each parameter is as follows:
(1) code name: 4041;
(2) outward appearance: light yellow liquid;
(3) density: 0.87 ~ 1.05g/cm3;
(4) condensation point :≤-65 ° of C;
(5) pH value: 6～7;
(6) molten water-based: water insoluble;
(7) molten wax speed: 0.035g/min;
(8) molten wax rate: 〉=65%.
Claims (2)
1. the efficient wax removal of the hot washing oil base in oil field, paraffin inhibitor chemical, it is characterized in that: formed by lubricant, tensio-active agent, thinner, permeate agent and reformation heavy oil, each weight percentages of components is: lubricant accounts for 5%～15%, surfactant comprise 5%～15%, thinner accounts for 15%～25%, permeate agent accounts for 10%～20%, and reformation heavy oil accounts for 40%～50%; Lubricant is cracked oil or aromatic hydrocarbons or aluminium foil oil, and tensio-active agent is fatty acid methyl ester or oleic acid; Thinner is solvent oil or solvent or diluent; Permeate agent is polyvalent alcohol or butanols.
2. the efficient wax removal of the hot washing oil base in oil field according to claim 1, paraffin inhibitor chemical, it is characterized in that: described each weight percentages of components is: lubricant 10%; Tensio-active agent 10%; Thinner 20%; See through agent 15%; Reformation heavy oil 45%.
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| CN2013102243520A CN103275684A (en) | 2013-06-07 | 2013-06-07 | Oilfield hot-washing oil-base high-efficiency paraffin-removal paraffin inhibitor |
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Cited By (12)
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| CN103468232A (en) * | 2013-09-27 | 2013-12-25 | 天津滨海瀚元化工有限公司 | Preparation method for deposited-wax cleaning agent |
| CN103897680A (en) * | 2014-04-14 | 2014-07-02 | 中国石油大学(北京) | Oil-soluble asphaltene dispersing blockage remover |
| CN103965850A (en) * | 2014-05-13 | 2014-08-06 | 新疆福利精细化工厂 | Viscosity reducer for crude oil and preparation method thereof |
| CN104559982A (en) * | 2013-10-29 | 2015-04-29 | 中国石油化工股份有限公司 | Composition with paraffin removal function and application of composition |
| CN104830298A (en) * | 2015-04-03 | 2015-08-12 | 湖北汉科新技术股份有限公司 | Water-based emulsion composite blocking remover |
| CN104946222A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Oil-base paraffin remover for oil wells |
| CN105419759A (en) * | 2015-12-24 | 2016-03-23 | 陕西延安石油天然气有限公司 | High-effective environment-friendly oil-based wax removal agent |
| CN106321055A (en) * | 2016-08-26 | 2017-01-11 | 新疆克拉玛依市采丰实业有限责任公司 | Acidization method for oil well with pump |
| CN107723145A (en) * | 2017-10-17 | 2018-02-23 | 中国石油化工股份有限公司 | A kind of cleaning agent, preparation method and application method for high-wax oil volume pipe |
| CN109971445A (en) * | 2019-04-28 | 2019-07-05 | 新疆新辰鼎盛石油工程有限公司 | Anti-scaling viscosity reduction type lotion Wax removing agent and preparation method thereof |
| CN112943167A (en) * | 2021-04-16 | 2021-06-11 | 中海石油(中国)有限公司湛江分公司 | Flushing fluid capable of quickly removing dead oil on pipe wall and flushing method thereof |
| CN117603669A (en) * | 2024-01-24 | 2024-02-27 | 北京石大瑞伽石油技术开发有限公司 | Comprehensive blocking remover for oil, gas and water wells and use method thereof |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103468232A (en) * | 2013-09-27 | 2013-12-25 | 天津滨海瀚元化工有限公司 | Preparation method for deposited-wax cleaning agent |
| CN104559982B (en) * | 2013-10-29 | 2017-11-03 | 中国石油化工股份有限公司 | A kind of composition acted on wax removal and its application |
| CN104559982A (en) * | 2013-10-29 | 2015-04-29 | 中国石油化工股份有限公司 | Composition with paraffin removal function and application of composition |
| CN104946222A (en) * | 2014-03-24 | 2015-09-30 | 中国石油化工股份有限公司 | Oil-base paraffin remover for oil wells |
| CN104946222B (en) * | 2014-03-24 | 2018-01-09 | 中国石油化工股份有限公司 | A kind of oil well oil-base paraffin remover |
| CN103897680A (en) * | 2014-04-14 | 2014-07-02 | 中国石油大学(北京) | Oil-soluble asphaltene dispersing blockage remover |
| CN103965850A (en) * | 2014-05-13 | 2014-08-06 | 新疆福利精细化工厂 | Viscosity reducer for crude oil and preparation method thereof |
| CN104830298A (en) * | 2015-04-03 | 2015-08-12 | 湖北汉科新技术股份有限公司 | Water-based emulsion composite blocking remover |
| CN104830298B (en) * | 2015-04-03 | 2017-11-10 | 湖北汉科新技术股份有限公司 | A kind of water-base emulsion composite blockage relieving agent |
| CN105419759A (en) * | 2015-12-24 | 2016-03-23 | 陕西延安石油天然气有限公司 | High-effective environment-friendly oil-based wax removal agent |
| CN105419759B (en) * | 2015-12-24 | 2018-05-04 | 陕西延安石油天然气有限公司 | A kind of high-efficiency environment friendly oil-base paraffin remover |
| CN106321055A (en) * | 2016-08-26 | 2017-01-11 | 新疆克拉玛依市采丰实业有限责任公司 | Acidization method for oil well with pump |
| CN107723145A (en) * | 2017-10-17 | 2018-02-23 | 中国石油化工股份有限公司 | A kind of cleaning agent, preparation method and application method for high-wax oil volume pipe |
| CN107723145B (en) * | 2017-10-17 | 2020-11-13 | 中国石油化工股份有限公司 | Cleaning agent for high-wax crude oil volume pipe, preparation method and use method |
| CN109971445A (en) * | 2019-04-28 | 2019-07-05 | 新疆新辰鼎盛石油工程有限公司 | Anti-scaling viscosity reduction type lotion Wax removing agent and preparation method thereof |
| CN109971445B (en) * | 2019-04-28 | 2021-06-25 | 中国石油天然气股份有限公司 | Anti-scaling viscosity-reducing type emulsion paraffin remover and preparation method thereof |
| CN112943167A (en) * | 2021-04-16 | 2021-06-11 | 中海石油(中国)有限公司湛江分公司 | Flushing fluid capable of quickly removing dead oil on pipe wall and flushing method thereof |
| CN117603669A (en) * | 2024-01-24 | 2024-02-27 | 北京石大瑞伽石油技术开发有限公司 | Comprehensive blocking remover for oil, gas and water wells and use method thereof |
| CN117603669B (en) * | 2024-01-24 | 2024-04-19 | 北京石大瑞伽石油技术开发有限公司 | Comprehensive blocking remover for oil, gas and water wells and use method thereof |
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Application publication date: 20130904 |