CN102676139B - Micro paraffin inhibitor used for high-temperature high-salt oil well and preparation method thereof - Google Patents
Micro paraffin inhibitor used for high-temperature high-salt oil well and preparation method thereof Download PDFInfo
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- CN102676139B CN102676139B CN 201110057596 CN201110057596A CN102676139B CN 102676139 B CN102676139 B CN 102676139B CN 201110057596 CN201110057596 CN 201110057596 CN 201110057596 A CN201110057596 A CN 201110057596A CN 102676139 B CN102676139 B CN 102676139B
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Abstract
The invention relates to a micro paraffin inhibitor used for a high-temperature high-salt oil well and a preparation method thereof. The microbe antiwax remover comprises the following components in percentage by weight: 15.0%-25.0% of industrial salt; 4.0%-8.0% of inorganic ammonium salt; 2.0%-4.0% of inorganic phosphorus salt; 10.0%-20.0% of starch; 5.0%-15.0% of bacillus strains and the balance of water. The raw materials and water are added into a fermentation tank with stirring, temperature control and vacuum systems according to a certain proportion, are uniformly stirred, heated to 121 DEG C for sterilization for 30 minutes, then slowly cooled to 95 DEG C, the bacillus strains are added into the fermentation tank according to proportion, then the temperature is reduced to 55-60 DEG C, and heating is stopped after 48 hours of fermentation; and the mixture in the fermentation tank is cooled to a normal temperature when being stirred so as to obtain the needed microbe antiwax remover. The microbe antiwax remover disclosed by the invention can effectively control the wax precipitation of the high-temperature high-salt oil well, and has strong reliability in use, a good effect and high economic benefits.
Description
Technical field:
The present invention relates to a kind of agent of the microbial wax control for the high temperature and high salt oil well and preparation method thereof, belong to petroleum industry Oilfield Chemicals technical field.
Background technology:
In the oil production process, along with the decline of temperature in wellbore and pressure, the waxy component in crude oil usually can be separated out, grows up and deposit in oil pipe, and then forms oil well paraffinication, has a strong impact on normally carrying out of oil well production.Therefore, the control oil well paraffinication of must adopting an effective measure.
At present, the method for control oil well paraffinication mainly contains Physical, chemical method and microbial method.But Physical (mainly comprise heat is washed, mechanical paraffin cutting) exist cost high, to shortcomings such as formation damage are large; Chemical method (mainly comprising paraffin removing with chemical method agent and chemical paraffin removing and inhibitor) exists the shortcomings such as consumption is large, cost is high, the safety and environmental protection performance is poor.
Conventional microbial method is a kind of technology of utilizing the microbial wax control agent to carry out control and remove of well paraffin.The petroleum hydrocarbon degradation bacterium mixed bacterium that the microbial wax control agent is comprised of multiple aerobic and facultative anaerobic bacteria.These mixed bacterium are separated from high waxy oil well Produced Liquid, the sole carbon source that the wax component that they be take in crude oil is growth and breeding.When being injected in oil well by the mixed bacterium preparation, the waxy component that mixed bacterium will be take in crude oil is carried out metabolism as carbon source, make long chain hydrocarbon be converted into short hydrocarbon, and produce the multiple bio-surfactants such as lipid acid, glycolipid, mixtinite, and change metal or clay mineral wettability of the surface, thereby stop separating out, grow up and depositing of wax crystallization.Therefore, adding of microbial inoculum has obvious and long-acting control and remove of well paraffin effect.But for the wax deposition problem of the oil well of high temperature (more than 90 ℃) high salt (salinity is more than 15%), conventional microbial method can not effectively solve, and its clear wax control result is poor, far can not meet the requirement of oil field actual production.
Summary of the invention:
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of agent of the microbial wax control for the high temperature and high salt oil well and preparation method thereof, can effectively control the wax deposition of high temperature and high salt oil well, have the advantages that reliability is strong, result of use good, economic benefit is high.
The present invention realizes above-mentioned purpose by following technical solution.
A kind of agent of the microbial wax control for the high temperature and high salt oil well provided by the present invention, wherein the weight percent of each component is:
Industrial Salt: 15.0%-25.0%;
Inorganic ammonium salt: 4.0%-8.0%;
Inorganic phosphate: 2.0%-4.0%;
Starch: 10.0%-20.0%;
Bacillus bacterial classification: 5.0%-15.0%;
Water: surplus.
The preparation method of a kind of agent of the microbial wax control for the high temperature and high salt oil well provided by the present invention joins the fermentor tank with stirring, temperature control and vacuum system in proportion by Industrial Salt, inorganic ammonium salt, Inorganic phosphate, starch and water, stir, be heated to 121 ℃ of sterilizings 30 minutes, slow cooling to 95 ℃, add in proportion again the bacillus bacterial classification in fermentor tank, be cooled to again 55--60 ℃, stop heating after fermenting 48 hours; Finally, be cooled to while stirring normal temperature, obtain the desired microorganisms wax removing agent.
The present invention has following beneficial effect compared with prior art:
1, a kind of agent of the microbial wax control for the high temperature and high salt oil well of the present invention, can effectively control the wax deposition of high temperature and high salt oil well, and the problem such as the consumption that can avoid the use of traditional chemical wax removing agent to bring is large, cost is high and the safety and environmental protection performance is poor.
2, a kind of agent of the microbial wax control for the high temperature and high salt oil well of the present invention, reliability is strong, and result of use is good, and economic benefit is high.
Embodiment:
According to a kind of agent of the microbial wax control for the high temperature and high salt oil well provided by the present invention, wherein the weight percent of each component is:
Industrial Salt: 15.0%-25.0%; Be preferably: 18.0%-22.0%;
Inorganic ammonium salt: 4.0%-8.0%; Be preferably: 5.0%-6.5%;
Inorganic phosphate: 2.0%-4.0%; Be preferably: 2.5%-3.5%;
Starch: 10.0%-20.0%; Be preferably: 12.0%-18.0%;
Bacillus kind: 5.0%-15.0%; Be preferably: 8.0%-12.0%;
Water: surplus.
Preparation method according to a kind of agent of the microbial wax control for the high temperature and high salt oil well provided by the present invention, Industrial Salt, inorganic ammonium salt, Inorganic phosphate, starch and water are joined in proportion in the fermentor tank with stirring, temperature control and vacuum system, stir, be heated to 121 ℃ of sterilizings 30 minutes, slow cooling to 95 ℃, add in proportion again the bacillus bacterial classification in fermentor tank, the microbial wax control bacterial classification that bacillus is resisting high temperature, high salt, be cooled to again 55--60 ℃, stop heating after fermenting 48 hours; Finally, be cooled to while stirring normal temperature, obtain the desired microorganisms wax removing agent.
The manufacture example:
1, take respectively 210 kilograms of Industrial Salts, 50 kilograms of inorganic ammonium salts, 30 kilograms of Inorganic phosphates, 150 kilograms of starch, 450 kilograms, water, join in the fermentor tank of the clean 1000L with stirring, temperature control and vacuum system, stir, be heated to 121 ℃ of sterilizings 30 minutes, be cooled to 95 ℃, add again 110 kilograms of bacillus bacterial classifications, then be cooled to 55-60 ℃; Stop heating after 48 hours at the continuous bottom fermentation that stirs.
2, be cooled to while stirring normal temperature, obtain 1000 kilograms of agent of the microbial wax control for the high temperature and high salt oil well.
Claims (2)
1. the agent of the microbial wax control for the high temperature and high salt oil well is characterized in that wherein the weight percent of each component is:
Industrial Salt: 15.0%-25.0%;
Inorganic ammonium salt: 4.0%-8.0%;
Inorganic phosphate: 2.0%-4.0%;
Starch: 10.0%-20.0%;
Bacillus bacterial classification: 5.0%-15.0%;
Water: surplus;
The preparation method of described microbial wax control agent joins Industrial Salt, inorganic ammonium salt, Inorganic phosphate, starch and water in the fermentor tank with stirring, temperature control and vacuum system in proportion, stir, be heated to 121 ℃ of sterilizings 30 minutes, slow cooling to 95 ℃, add in proportion again the bacillus bacterial classification in fermentor tank, be cooled to again 55--60 ℃, stop heating after fermenting 48 hours; Finally, be cooled to while stirring normal temperature.
2. a kind of agent of the microbial wax control for the high temperature and high salt oil well according to claim 1 is characterized in that wherein the weight percent of each component is:
Industrial Salt: 18.0%-22.0%;
Inorganic ammonium salt: 5.0%-6.5%;
Inorganic phosphate: 2.5%-3.5%;
Starch: 12.0%-18.0%;
Bacillus bacterial classification: 8.0%-12.0%;
Water: surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110057596 CN102676139B (en) | 2011-03-10 | 2011-03-10 | Micro paraffin inhibitor used for high-temperature high-salt oil well and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110057596 CN102676139B (en) | 2011-03-10 | 2011-03-10 | Micro paraffin inhibitor used for high-temperature high-salt oil well and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102676139A CN102676139A (en) | 2012-09-19 |
| CN102676139B true CN102676139B (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110057596 Expired - Fee Related CN102676139B (en) | 2011-03-10 | 2011-03-10 | Micro paraffin inhibitor used for high-temperature high-salt oil well and preparation method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289662B (en) * | 2013-06-14 | 2015-10-07 | 中国石油化工股份有限公司 | A kind of Paraffin Removal micro organism powder and using method thereof |
| CN104832129A (en) * | 2015-04-30 | 2015-08-12 | 长江大学 | Paraffin cleaning and preventing method for gathering and transportation pipeline |
| CN105927185B (en) * | 2016-04-29 | 2018-07-31 | 烟台智本知识产权运营管理有限公司 | A kind of method of high temperature and high salt high-content wax oil well single well stimulation volume increase |
| CN105888612B (en) * | 2016-04-29 | 2018-06-29 | 烟台智本知识产权运营管理有限公司 | A kind of method that high temperature and high salt high-content wax oil well single well stimulation recovers the oil |
| CN107939341A (en) * | 2017-11-29 | 2018-04-20 | 大庆华营化工有限公司 | A kind of microbial wax control agent and preparation method thereof |
| CN108559720A (en) * | 2018-04-26 | 2018-09-21 | 长江大学 | One kind is for oil well paraffin prevention corrosion-resistant microbial bacterial agent and preparation method thereof |
| CN108531155A (en) * | 2018-05-11 | 2018-09-14 | 湖北三雄科技发展有限公司 | A kind of microorganism oil-displacing agent and preparation method for high temperature and high salinity oil reservoir |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060060350A1 (en) * | 2002-10-07 | 2006-03-23 | Miklos Hlatki | Method for the treatment and prevention of asphaltene-paraffin-vax precipitates in oil-wells, wellheads and pipelines by the use of biocolloid suspensions |
| CN101538459B (en) * | 2009-04-30 | 2011-08-03 | 中国石油天然气股份有限公司 | Oil well pollution-free paraffin removing and viscosity reducing agent |
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Granted publication date: 20131218 Termination date: 20170310 |