CN102676139A - 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 PDF

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Publication number
CN102676139A
CN102676139A CN2011100575965A CN201110057596A CN102676139A CN 102676139 A CN102676139 A CN 102676139A CN 2011100575965 A CN2011100575965 A CN 2011100575965A CN 201110057596 A CN201110057596 A CN 201110057596A CN 102676139 A CN102676139 A CN 102676139A
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salt
oil well
temperature
cooled
inorganic
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CN102676139B (en
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易绍金
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Yangtze University
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Yangtze University
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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

A kind of mikrobe wax removing agent that is used for the high temperature and high salt oil well and preparation method thereof
Technical field:
The present invention relates to a kind of mikrobe wax removing agent that is used for the high temperature and high salt oil well and preparation method thereof, belong to petroleum industry oilfield chemistry agent technical field.
Background technology:
In the oil production process, along with the decline of temperature in wellbore and pressure, the waxy component in the crude oil usually can be separated out in oil pipe, grows up and deposit, 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 physics method, chemical method and microbial method.But physics method (mainly comprise heat is washed, mechanical paraffin cutting) exists the cost height, to shortcomings such as formation damage are big; Chemical method (mainly comprising paraffin removing with chemical method agent and chemical paraffin removing and inhibitor) then exists shortcomings such as consumption is big, cost is high, safety and environmental protection performance difference.
Conventional microbial method is a kind of technology of utilizing the mikrobe wax removing agent to carry out control and remove of well paraffin.The mikrobe wax removing agent is by multiple aerobic and petroleum hydrocarbon degradation bacterium mixed bacterium that facultative anaerobe is formed.These mixed bacterium are separated from high waxy oil well extraction liquid, and they are the sole carbon source of growth and breeding with the wax component in the crude oil.When being injected into the mixed bacterium preparation in the oil well; Mixed bacterium will be that carbon source is carried out metabolism with the waxy component in the crude oil; Make long chain hydrocarbon be converted into short hydrocarbon; And produce multiple bio-surfactants such as lipid acid, glycolipid, mixtinite, and change metal or clay mineral wetting of surfaces property, thus stop separating out, grow up and depositing of wax crystallization.Therefore, adding of microbial inoculum has obvious and long lasting 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 relatively poor, far can not satisfy the oil field requirements of actual production.
Summary of the invention:
In order to overcome the deficiency of prior art; The object of the present invention is to provide a kind of mikrobe wax removing agent that is used 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 good reliability, result of use is good, economic benefit is high characteristics.
The present invention realizes above-mentioned purpose through following technical scheme.
A kind of mikrobe wax removing agent that is used 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 microcosmic salt: 2.0%-4.0%;
Starch: 10.0%-20.0%;
Bacillus bacterial classification: 5.0%-15.0%;
Water: surplus.
A kind of preparation method who is used for the mikrobe wax removing agent of 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 with Industrial Salt, inorganic ammonium salt, inorganic microcosmic salt, starch and water; Stir; Be heated to 121 ℃ of sterilizations 30 minutes, slowly be cooled to 95 ℃, add the bacillus bacterial classification more in proportion in fermentor tank; Be cooled to 55--60 ℃ again, fermenting stops heating after 48 hours; At last, be cooled to normal temperature while stirring, promptly obtain the desired microorganisms wax removing agent.
The present invention has following beneficial effect compared with prior art:
1, a kind of mikrobe wax removing agent that is used for the high temperature and high salt oil well of the present invention can effectively be controlled the wax deposition of high temperature and high salt oil well, and can avoid the consumption that use brought of traditional chemical wax removing agent big, cost is high and problem such as safety and environmental protection performance difference.
2, a kind of mikrobe wax removing agent that is used for the high temperature and high salt oil well of the present invention, good reliability, result of use is good, and economic benefit is high.
Embodiment:
According to a kind of mikrobe wax removing agent that is used 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 microcosmic salt: 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.
According to a kind of preparation method who is used for the mikrobe wax removing agent of high temperature and high salt oil well provided by the present invention; Industrial Salt, inorganic ammonium salt, inorganic microcosmic salt, starch and water are joined in the fermentor tank with stirring, temperature control and vacuum system in proportion; Stir, be heated to 121 ℃ of sterilizations 30 minutes, slowly be cooled to 95 ℃; Add the bacillus bacterial classification more in proportion in fermentor tank; Bacillus is the clear wax control bacterial classification of the mikrobe of resisting high temperature, high salt, is cooled to 55--60 ℃ again, ferments to stop heating after 48 hours; At last, be cooled to normal temperature while stirring, promptly obtain the desired microorganisms wax removing agent.
Produce the preparation instance:
1, takes by weighing 210 kilograms of Industrial Salts, 50 kilograms of inorganic ammonium salts, 30 kilograms of inorganic microcosmic salts, 150 kilograms of starch, 450 kilograms in water respectively; Join in the fermentor tank of clean 1000L with stirring, temperature control and vacuum system; Stir, be heated to 121 ℃ of sterilizations 30 minutes, be cooled to 95 ℃; Add 110 kilograms of bacillus bacterial classifications again, be cooled to 55-60 ℃ again; Stop heating after 48 hours at the continuous bottom fermentation that stirs.
2, be cooled to normal temperature while stirring, promptly obtain 1000 kilograms of mikrobe wax removing agents that are used for the high temperature and high salt oil well.

Claims (4)

1. mikrobe wax removing agent that is used 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 microcosmic salt: 2.0%-4.0%;
Starch: 10.0%-20.0%;
Bacillus bacterial classification: 5.0%-15.0%;
Water: surplus.
2. the described a kind of preparation method who is used for the mikrobe wax removing agent of high temperature and high salt oil well of claim 1; It is characterized in that it being that Industrial Salt, inorganic ammonium salt, inorganic microcosmic salt, starch and water are joined in the fermentor tank with stirring, temperature control and vacuum system in proportion, stir, heating, sterilization; Be cooled to 95 ℃; Add the bacillus bacterial classification more in proportion in fermentor tank, be cooled to 55--60 ℃ again, fermenting stops heating after 48 hours; At last, be cooled to normal temperature while stirring.
3. a kind of mikrobe wax removing agent that is used 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 microcosmic salt: 2.5%-3.5%;
Starch: 12.0%-18.0%;
Bacillus bacterial classification: 8.0%-12.0%;
Water: surplus.
4. a kind of preparation method who is used for the mikrobe wax removing agent of high temperature and high salt oil well according to claim 2; It is characterized in that it being that Industrial Salt, inorganic ammonium salt, inorganic microcosmic salt, starch and water are joined in the fermentor tank with stirring, temperature control and vacuum system in proportion, stir, be heated to 121 ℃ of sterilizations 30 minutes; Slowly be cooled to 95 ℃; Add the bacillus bacterial classification more in proportion in fermentor tank, be cooled to 55--60 ℃ again, fermenting stops heating after 48 hours; At last, be cooled to normal temperature while stirring.
CN 201110057596 2011-03-10 2011-03-10 Micro paraffin inhibitor used for high-temperature high-salt oil well and preparation method thereof Expired - Fee Related CN102676139B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103289662A (en) * 2013-06-14 2013-09-11 中国石油化工股份有限公司 Microbial powder for removing and inhibiting wax and application method thereof
CN104832129A (en) * 2015-04-30 2015-08-12 长江大学 Paraffin cleaning and preventing method for gathering and transportation pipeline
CN105888612A (en) * 2016-04-29 2016-08-24 烟台智本知识产权运营管理有限公司 Method for single-well huff and puff oil recovery of high-temperature, high-salt and high-wax-oil-content well
CN105927185A (en) * 2016-04-29 2016-09-07 烟台智本知识产权运营管理有限公司 Huff-puff stimulation method for single high-temperature high-salinity high-wax-content oil well
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
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
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

Citations (2)

* Cited by examiner, † Cited by third party
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
CN101538459A (en) * 2009-04-30 2009-09-23 中国石油天然气股份有限公司 Oil well pollution-free paraffin removing and viscosity reducing agent

Patent Citations (2)

* Cited by examiner, † Cited by third party
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
CN101538459A (en) * 2009-04-30 2009-09-23 中国石油天然气股份有限公司 Oil well pollution-free paraffin removing and viscosity reducing agent

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103289662A (en) * 2013-06-14 2013-09-11 中国石油化工股份有限公司 Microbial powder for removing and inhibiting wax and application method thereof
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
CN105888612A (en) * 2016-04-29 2016-08-24 烟台智本知识产权运营管理有限公司 Method for single-well huff and puff oil recovery of high-temperature, high-salt and high-wax-oil-content well
CN105927185A (en) * 2016-04-29 2016-09-07 烟台智本知识产权运营管理有限公司 Huff-puff stimulation method for single high-temperature high-salinity high-wax-content oil well
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
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
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

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