CN102071933A - Method and device for sampling produced fluid of oil reservoir for microbial flooding - Google Patents
Method and device for sampling produced fluid of oil reservoir for microbial flooding Download PDFInfo
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Abstract
The invention relates to a method and a device for sampling a produced fluid of an oil reservoir for microbial flooding. The technical scheme comprises the following steps of: (1) test and control of the temperature and pressure of the oil reservoir; (2) anaerobic treatment for the sampling device; (3) high-temperature and high-pressure separation of oil, gas and water; (4) anaerobic and high-pressure sampling of the oil, the gas and the water; (5) on-line test of oil, gas and water samples; and (6) processing and remote transmission of oil, gas and water test results. The invention has the advantages of solving the problem of the sampling of oil, gas and water mixtures under high-temperature, high-voltage and anaerobic conditions, ensuring that materials cannot diffuse on the spot during the sampling so as to protect on-site environment, ensuring that recovered crude oil and gas can be effectively utilized, ensuring the accuracy and reliability of parameter testing of the produced fluid of the oil reservoir of the microbial flooding, improving the accuracy of microbial community structures by over 30 percent and the accuracy of oxidation-reduction potential by over 40 percent, and providing a reliable theoretical basis for the ecological regulation and control of the oil reservoir of the microbial blooding.
Description
One, technical field
The present invention relates to a kind of microbe oil production technical field, particularly a kind of at the oil reservoir output liquid sampling method and the device that are used for microbial flooding that keep under high temperature, high pressure and the anaerobic condition.
Two, background technology
Microorganism is improved recovery efficiency technique (Microbial Enhanced Oil Recovery) and is meant the technology of utilizing microorganism (mainly being bacterium, ancient bacterium) and metabolite thereof to improve crude output and recovery ratio, compare with other tertiary oil recovery technologies, that microbial technique has is applied widely, technology is simple, characteristics such as good in economic efficiency, pollution-free, have a good application prospect, thereby receive increasing concern.Microbial single well wax control, microorganism huff and puff and microbial oil displacement three major types technology have been formed at present.
At present the test event of output liquid mainly comprises biological community structure, oxidation-reduction potential, salinity and the pH value etc. of viscosity of crude and family's component, gas composition and component, formation water in the microbial flooding process.Crude oil, formation water and gaseous sample are to get the indoor oil of produced liquid in oil well process, gas, moisture from obtaining by the scene.The pressure of sample can discharge suddenly and reduce to atmospheric pressure at present traditional sampling process, does not also have the insulation measure, and is exposed to the original anaerobic environment of destruction in the air, so this method exists deficiency to be:
(1) temperature, pressure and oxygen content are the key factors that influences the growth of microorganism metabolism, their fluctuation can cause that structure of community changes in the formation water, makes its biological community structure test result can't truly objectively respond situation in the high-temperature and high-pressure conditions sub-surface water;
(2) mensuration of oxidation-reduction potential mainly is earlier crude oil in the water and suspension to be filtered out, and utilizes platinum electrode to be measurement electrode then, directly measures as auxiliary electrode with silver-silver chloride electrode.This method will cause airborne oxygen to dissolve in the recovered water, improves dissolved oxygen, makes the higher of institute's oxygen determination reduction potential value;
(3) profit of getting from the scene mixes and need carry out just carrying out parameter testing after water-oil separating and the preceding preliminary treatment of test to the laboratory, and therefore length not only consuming time causes test result inaccurate, and how intermediate link easily causes the pollution of sample;
(4) in the field sampling process, gas and part extraction liquid directly efflux, and cause environment pollution.
Through patent and document Investigation retrieval, oil field mining liquid high temperature, high-pressure sampling method and relevant patent and the document of device also do not appear, patent ZL91109848 (" suspension sampling method and device ") introduces a kind of method of extracting sample in the solid particle suspension that has, and part suspension is extracted and delivers to from the bypass of suspension pond analyze its composition the analyzer.The problem of its existence is: this device carries out the sampling of suspension under normal temperature, normal pressure, open condition, does not reach the requirement of high temperature, high pressure, airtight sampling.Patent 200910142194.8 (" oil phase sampling method in oil-water two-phase and special equipment thereof ") has been introduced a kind of polypropylene fibre of using as eliminator, method with peristaltic pump continuous drawing oil phase, the problem of its existence is that this device can only carry out that profit two is separated under normal temperature, the condition of normal pressure, do not reach the requirement of high pressure and airtight sampling, discarded object effluxes contaminated environment simultaneously.
Three, summary of the invention
Purpose of the present invention is exactly the above-mentioned defective that exists at prior art; a kind of oil reservoir output liquid sampling method and device that is used for microbial flooding is provided; solved the difficult problem of oil gas aqueous mixtures sampling under the HTHP anaerobic condition; material can not spread at the scene in sampling process; thereby protected site environment, crude oil and gas reclaim and can be utilized effectively.
A kind of oil reservoir output liquid sampling method that is used for microbial flooding, its technical scheme is may further comprise the steps:
(1) reservoir temperature pressure test and control
At first detect the reservoir pressure of microbial flooding by pressure-detecting device, temperature-detecting device detects the reservoir temperature of microbial flooding, feed back to the temperature and pressure control device then respectively, the pressure of pressure control device control extraction liquid sampler, the temperature of temperature control equipment control extraction liquid sampler.
(2) sampler Anaerobic Treatment
Utilize vacuum pump that air residual in well head linkage unit, oil gas water collector unit, profit one-level separative element, profit secondary separative element, the recovered water collector unit is extracted out, guarantee that whole device is in oxygen-free environment.
(3) oil gas water high pressure-temperature separates
Open the cross valve of well head linkage unit, produced liquid in oil well passes through profit one-level separative element successively, and profit secondary separative element is got acquisition crude oil, waste liquid and high temperature and high pressure gas and recovered water.
(4) oil gas water anaerobism and high-pressure sampling
Utilize high-pressure sampling device and anaerobism sampler from the recovered water collector unit, to take a sample and carry out HTHP sampling and anaerobism sampling, utilize the crude oil sampling device from the crude oil gathering-device, to draw oil sample, utilize gas sampling device from gas collector, to get the gas sample.
(5) oil gas water sample on-line testing
After the oil gas water sample is got and is finished, online oxidation-reduction potential, biological community structure, salinity, pH value of carrying out recovered water, viscosity of crude, family's component, gas composition and component test.
(6) oil gas water test result is handled and teletransmission
After on-line testing is finished, carry out test result and compile, carry out teletransmission then, the laboratory obtains the result of on-line testing.
(7) sampler cleans
After the above-mentioned steps sampling is finished, utilize the elevated pressure nitrogen in the sampler that residual fraction crude oil or recovered water in the sampler are cleaned, carry out the HTHP sampling of end opening well fully, prevent to pollute the sample of end opening well.
(8) waste liquid is recycled
The recovered water, crude oil and the gas that are left after sampling is finished are sent the laboratory back to and are recycled, and the waste liquid after the cleaning effluxes through after the harmless treatment.
In addition, a kind of oil reservoir output liquid sampler that is used for microbial flooding of the present invention comprises well head linkage unit, oil gas water collector unit, profit one-level separative element, profit secondary separative element, recovered water collector unit, high-pressure sampling device, reservoir temperature and pressure-detecting device, temperature and pressure control device, multi-parameters test unit, anaerobic processing device, data processing and remote transmission device, waste liquid cleaning device, gas collector, crude oil gathering-device, anaerobism sampler and waste collection device; Described well head linkage unit connects waste liquid cleaning device, reservoir temperature and pressure-detecting device, well mouth of oil well and oil gas water collector unit respectively, described oil gas water collector unit connects profit one-level separative element, profit secondary separative element, recovered water collector unit high-pressure sampling device successively, and described oil gas water collector unit connects gas collector by high-pressure stop valve; Described profit one-level separative element and profit secondary separative element are communicated with the crude oil gathering-device by high-pressure stop valve respectively; Described recovered water collector unit is communicated with anaerobism sampler and waste collection device by high-pressure stop valve, and the bottom of recovered water collector unit is communicated with anaerobic processing device.Described crude oil sampling device connects the crude oil gathering-device by high-pressure stop valve, and gas sampling device connects gas collector by high-pressure stop valve.
The output of above-mentioned multi-parameters test unit connects data to be handled and remote transmission device, and input connects gas collector, high-pressure sampling device and anaerobic processing device.
The present invention compared with prior art has following advantage:
(1) this sampler has the function of high temperature, high pressure and anaerobism, and temperature and pressure control accuracy height, and the temperature departure is ± 0.1 ℃, and the pressure departure is ± 0.1MPa.Guaranteed microbial flooding oil reservoir extraction liquid parameter testing accuracy and reliability, the biological community structure accuracy improves more than 30%, and the oxidation-reduction potential accuracy improves more than 40%, for microbial flooding oil reservoir ecological regulation and control provides reliable theoretical foundation;
(2) this device has the function of on-line testing and data remote, compares with conventional method, obtains required time and shortened 3～5 days from the field sampling to the test result, has improved operating efficiency on the one hand, improves precision of test result on the other hand;
(3) this apparatus function is many, and the function of existing high temperature, high pressure, anaerobism and airtight sampling also has the function of parameter on-line testing and test result teletransmission, this device security performance height simultaneously, and automaticity height, pressure and temperature are realized control automatically;
(4) this device have reasonable in design, workable, simple in structure, flexible, mobility is strong;
(5) this device oil gas water in sampling process can not spread at the scene; crude oil after having taken a sample, gas and waste liquid are sorted out recovery respectively, and the crude oil that reclaims can be utilized effectively on the one hand, has realized zero-emission on the other hand; protected site environment, alleviated injury operation.
Four, description of drawings
Accompanying drawing 1 is a structured flowchart of the present invention;
Accompanying drawing 2 is structural representation block diagrams of oil gas water collector unit of the present invention;
Accompanying drawing 3 is structured flowcharts of profit one-level separative element of the present invention;
Accompanying drawing 4 is structured flowcharts of profit secondary separative element of the present invention;
Accompanying drawing 5 is structured flowcharts of recovered water collector unit of the present invention;
Accompanying drawing 6 is structured flowcharts of multi-parameters test of the present invention unit;
Among the last figure: well head linkage unit 1, oil gas water collector unit 2, profit one-level separative element 3, profit secondary separative element 4, recovered water collector unit 5, high-pressure sampling device 6, reservoir temperature and pressure-detecting device 7, temperature and pressure control device 8, multi-parameters test unit 9, anaerobic processing device 10, data are handled and remote transmission device 11, waste liquid cleaning device 12, gas collector 13, crude oil gathering-device 14, anaerobism sampler 15, waste collection device 16, crude oil sampling device 17 and gas sampling device 18;
Oil gas water collecting device 21, high-pressure stop valve 22, high-pressure stop valve 23, high-pressure stop valve 24, safety valve 25 and pressure sensor 26; Profit one-level separator 31, high-pressure stop valve 32, high-pressure stop valve 33, high-pressure stop valve 34, safety valve 35 and pressure sensor 36; Profit secondary separation device 41, high-pressure stop valve 42, high-pressure stop valve 43, high-pressure stop valve 44, safety valve 45 and pressure sensor 46; Gather water collecting device 51, high-pressure stop valve 52, high-pressure stop valve 53, high-pressure stop valve 54, high-pressure stop valve 55, safety valve 56 and pressure sensor 57; Oxidation-reduction potential testing arrangement 91, biological community structure testing arrangement 92, pH value testing arrangement 93, salinity testing arrangement 94, BOD testing arrangement 95, gas component testing arrangement 96, viscosity of crude testing arrangement 97, crude oil family component testing arrangement 98.
Five, the specific embodiment
In conjunction with the accompanying drawings 1, with certain microbial flooding oil reservoir---Ng3 closed test in Zhong Yi district is an example, and the present invention is further set forth:
The method of a kind of microbial flooding oil reservoir oil output liquid high temperature, high pressure and anaerobism sampling may further comprise the steps:
(1) reservoir temperature pressure test and control
At first detecting Zhong Yi district Ng3 reservoir pressure by pressure-detecting device is 10.0MPa, the reservoir temperature that temperature-detecting device detects Zhong Yi district Ng3 is 69 ℃, feed back to the temperature and pressure control device then respectively, the constant pressure of pressure control device control sampler is 10MPa, and the temperature constant of temperature control equipment control sampler is 69 ℃.
(2) sampler Anaerobic Treatment
Utilize vacuum pump that air residual in well head linkage, output liquid processing device, the oil gas water-sampling device is extracted out, the pumpdown time is 30 minutes.
(3) oil gas water high pressure-temperature separates
Open the cross valve of well head linkage, the 7N11 produced liquid in oil well passes through profit one-level separator successively, and the profit secondary separation device is got acquisition 69 ℃, 10MPa recovered water 45L, normal temperature and pressure gas 98L, crude oil 23L and waste liquid 29L.
(4) oil gas water anaerobism and high-pressure sampling
Utilize high pressure-temperature sampler and anaerobism sampler to carry out Zhong Yi district Ng3 reservoir temperature and pressure sampling and anaerobism sampling down from the recovered water gathering-device, sampling amount is respectively 1.0L and 2.0L.Utilize the crude oil sampling device 1.5L that from the crude oil gathering-device, draws oil sample.Utilize gas sampling device from gas collector, to get gas sample 0.5L.
(5) oil gas water sample on-line testing
After the oil gas water sample is got and is finished, online oxidation-reduction potential, biological community structure, salinity, pH value of carrying out recovered water, viscosity of crude, gas composition and component test.Test result is as follows:
Oxidation-reduction potential :-251mV
Biological community structure test result: microbiologic population's sum 2.5 * 10
8Individual/ml, sulfate reducing bacteria 1.5 * 10
7Individual/ml, methanogen 0.5 * 10
7Individual/ml, saprophytic bacteria 3.5 * 10
6Individual/ml, hydrocarbon oxidation bacterium 2.5 * 10
7Individual/ml.
Salinity: 3652mg/L
PH value: 7.6
Viscosity of crude: 2563mpa.s
Gas composition machine component: methane 71.5%, H
2S 25.6%, CO
22.2%, H
20.7%.
(6) oil gas water test result is handled and teletransmission
After on-line testing is finished, carry out test result and compile, carry out teletransmission then, the laboratory obtains the result of on-line testing.
(7) sampler cleans
After sampling is finished, utilize the elevated pressure nitrogen in the sampler that residual fraction crude oil or recovered water in the sampler are cleaned.Cleaned 20 minutes consuming time.
(8) waste liquid is recycled
The recovered water, crude oil and the gas that are left after sampling is finished are sent the laboratory back to and are recycled.Waste liquid after the cleaning effluxes through after the harmless treatment.
A kind of oil reservoir output liquid sampler that is used for microbial flooding of the present invention comprises well head linkage unit 1, oil gas water collector unit 2, profit one-level separative element 3, profit secondary separative element 4, recovered water collector unit 5, high-pressure sampling device 6, reservoir temperature and pressure-detecting device 7, temperature and pressure control device 8, multi-parameters test unit 9, anaerobic processing device 10, data are handled and remote transmission device 11, waste liquid cleaning device 12, gas collector 13, crude oil gathering-device 14, anaerobism sampler 15, waste collection device 16, crude oil sampling device 17 and gas sampling device 18; Described well head linkage unit 1 connects waste liquid cleaning device 12, reservoir temperature and pressure-detecting device 7, well mouth of oil well and oil gas water collector unit 2 respectively, described oil gas water collector unit 2 connects profit one-level separative element 3, profit secondary separative element 4, recovered water collector unit 5 and high-pressure sampling device 6 successively, and described oil gas water collector unit 2 connects gas collector 13 by high-pressure stop valve; Described profit one-level separative element 3 and profit secondary separative element 4 are communicated with crude oil gathering-device 14 by high-pressure stop valve respectively; Described recovered water collector unit 5 is communicated with anaerobism sampler 15 and waste collection device 16 by high-pressure stop valve, and the bottom of recovered water collector unit 5 is communicated with anaerobic processing device 10; The output of multi-parameters test unit 9 connects data to be handled and remote transmission device 11, and input connects gas collector 13, high-pressure sampling device 6 and anaerobic processing device 10; Described crude oil sampling device 17 connects crude oil gathering-device 14 by high-pressure stop valve, and gas sampling device 18 connects gas collector 13 by high-pressure stop valve.
With reference to accompanying drawing 2-6, the oil gas water collector unit 2 among the present invention is made up of oil gas water collecting device 21, high-pressure stop valve 22, high-pressure stop valve 23, high-pressure stop valve 24, safety valve 25 and pressure sensor 26.
Profit one-level separative element 3 is by profit one-level separator 31, high-pressure stop valve 32, high-pressure stop valve 33, high-pressure stop valve 34, safety valve 35 and pressure sensor 36 are formed, profit one-level separative element is a column shape container, bear pressure and be not less than 20MPa, safety valve is equipped with at the top, the temperature and pressure checkout gear, the profit inlet is installed in profit one-level separative element side by last position, with distance from top be 5cm～10cm, crude oil recovery device pipeline inlet is installed in profit one-level separative element lateral location, with distance from top be 10cm～15cm, the bottom is equipped with one and connects the outlet of secondary oily-water seperating equipment pipeline.
Profit secondary separative element 4 is made up of profit secondary separation device 41, high-pressure stop valve 42, high-pressure stop valve 43, high-pressure stop valve 44, safety valve 45 and pressure sensor 46.Profit secondary separative element 4 is cylinder containers, bear pressure and be not less than 20MPa, safety valve, temperature and pressure checkout gear are equipped with in the top, profit one-level parting liquid inlet is installed in profit secondary separation device side by last position, with distance from top be 5cm～10cm, crude oil recovery device pipeline inlet is installed in profit one-level separator lateral location, with distance from top be 10cm～15cm; The bottom is equipped with two outlets, and one connects recovered water gathering-device pipeline, and one connects the waste liquid recovery apparatus pipeline.
Wherein, crude content is no more than 1.0% in the one-level separation acquisition extraction liquid, and formation water content is higher than 99.0%, suspension content is lower than 0.5%, oil content is lower than 0.1% in the secondary separation acquisition output liquid, and formation water content is higher than 99.9%, and suspension content is lower than 0.1%.
Recovered water collector unit 5 is made up of the water collecting device 51 of gathering, high-pressure stop valve 52, high-pressure stop valve 53, high-pressure stop valve 54, high-pressure stop valve 55, safety valve 56 and pressure sensor 57.
Device of the present invention has high pressure resistant and function high temperature, and maximum pressure is 32MPa, and maximum temperature is 150 ℃; Have vacuum extractor, make whole device under anaerobic carry out work; Have the automatic temperature-control function, temperature regulating range is 0 ℃～120 ℃, and the temperature departure is ± 0.1 ℃.Have the automatic Regulation function, the pressure adjustable range is 0.1MPa-35MPa, and the pressure departure is ± 0.1MPa.
Claims (4)
1. oil reservoir output liquid sampling method that is used for microbial flooding is characterized in that may further comprise the steps:
(1) reservoir temperature pressure test and control:
At first detect the reservoir pressure of microbial flooding by pressure-detecting device, temperature-detecting device detects the reservoir temperature of microbial flooding, feed back to the temperature and pressure control device then respectively, the pressure of pressure control device control extraction liquid sampler, the temperature of temperature control equipment control extraction liquid sampler;
(2) sampler Anaerobic Treatment:
Utilize vacuum pump that air residual in well head linkage unit, oil gas water collector unit, profit one-level separative element, profit secondary separative element, the recovered water collector unit is extracted out, guarantee that whole device is in oxygen-free environment;
(3) oil gas water high pressure-temperature separates:
Open the cross valve of well head linkage unit, produced liquid in oil well passes through profit one-level separative element successively, and profit secondary separative element is got acquisition crude oil, waste liquid and high temperature and high pressure gas and recovered water;
(4) oil gas water anaerobism and high-pressure sampling:
Utilize high-pressure sampling device and anaerobism sampler from the recovered water collector unit, to take a sample and carry out HTHP sampling and anaerobism sampling, utilize the crude oil sampling device from the crude oil gathering-device, to draw oil sample, utilize gas sampling device from gas collector, to get the gas sample;
(5) oil gas water sample on-line testing:
After the oil gas water sample is got and is finished, online oxidation-reduction potential, biological community structure, salinity, pH value of carrying out recovered water, viscosity of crude, family's component, gas composition and component test;
(6) oil gas water test result is handled and teletransmission:
After on-line testing is finished, carry out test result and compile, carry out teletransmission then, the laboratory obtains the result of on-line testing.
2. the oil reservoir output liquid sampling method that is used for microbial flooding according to claim 1 is characterized in that: further comprising the steps of:
(7) sampler cleans
After the above-mentioned steps sampling is finished, utilize the elevated pressure nitrogen in the sampler that residual fraction crude oil or recovered water in the sampler are cleaned, carry out the HTHP sampling of end opening well fully, prevent to pollute the sample of end opening well;
(8) waste liquid is recycled
The recovered water, crude oil and the gas that are left after sampling is finished are sent the laboratory back to and are recycled, and the waste liquid after the cleaning effluxes through after the harmless treatment.
3. an oil reservoir output liquid sampler that is used for microbial flooding is characterized in that: comprise well head linkage unit (1), oil gas water collector unit (2), profit one-level separative element (3), profit secondary separative element (4), recovered water collector unit (5), high-pressure sampling device (6), reservoir temperature and pressure-detecting device (7), temperature and pressure control device (8), multi-parameters test unit (9), anaerobic processing device (10), data are handled and remote transmission device (11), waste liquid cleaning device (12), gas collector (13), crude oil gathering-device (14), anaerobism sampler (15), waste collection device (16), crude oil sampling device (17) and gas sampling device (18); Described well head linkage unit (1) connects waste liquid cleaning device (12), reservoir temperature and pressure-detecting device (7), well mouth of oil well and oil gas water collector unit (2) respectively, described oil gas water collector unit (2) connects profit one-level separative element (3), profit secondary separative element (4), recovered water collector unit (5) and high-pressure sampling device (6) successively, and described oil gas water collector unit (2) connects gas collector (13) by high-pressure stop valve; Described profit one-level separative element (3) and profit secondary separative element (4) are communicated with crude oil gathering-device (14) by high-pressure stop valve respectively; Described recovered water collector unit (5) is communicated with anaerobism sampler (15) and waste collection device (16) by high-pressure stop valve, and the bottom of recovered water collector unit (5) is communicated with anaerobic processing device (10); Described crude oil sampling device (17) connects crude oil gathering-device (14) by high-pressure stop valve, and gas sampling device (18) connects gas collector (13) by high-pressure stop valve.
4. the oil reservoir output liquid sampler that is used for microbial flooding according to claim 3, it is characterized in that: the output of described multi-parameters test unit (9) connects data to be handled and remote transmission device (11), and input connects gas collector (13), high-pressure sampling device (6) and anaerobic processing device (10).
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| CN 201010552732 CN102071933B (en) | 2010-11-13 | 2010-11-13 | Method and device for sampling produced fluid of oil reservoir for microbial flooding |
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| CN 201010552732 CN102071933B (en) | 2010-11-13 | 2010-11-13 | Method and device for sampling produced fluid of oil reservoir for microbial flooding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425398A (en) * | 2011-11-17 | 2012-04-25 | 中国石油化工股份有限公司 | Produced fluid circulating treatment method for microbial flooding |
| CN105201472A (en) * | 2015-09-28 | 2015-12-30 | 中国石油化工股份有限公司 | Oil deposit stratal microflora regulation and control method |
| CN107356498A (en) * | 2017-05-18 | 2017-11-17 | 江苏中能科研仪器发展有限公司 | A kind of heavy oil wells viscosity reducing test device |
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| CN1424484A (en) * | 2003-01-08 | 2003-06-18 | 中国石化胜利油田有限公司采油工艺研究院 | Method for driving crude oil out by microorgans in crude oil |
| WO2006118570A1 (en) * | 2005-05-03 | 2006-11-09 | Luca Technologies, Llc. | Biogenic fuel gas generation in geologic hydrocarbon deposits |
| CN201043460Y (en) * | 2007-05-18 | 2008-04-02 | 中国石化股份胜利油田分公司采油工艺研究院 | Air-assistant microorganism-driving ground automatic filling device |
| CN101818634A (en) * | 2010-04-23 | 2010-09-01 | 中国石油化工股份有限公司 | Method for regulating and controlling microbial community for oil extraction |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1424484A (en) * | 2003-01-08 | 2003-06-18 | 中国石化胜利油田有限公司采油工艺研究院 | Method for driving crude oil out by microorgans in crude oil |
| WO2006118570A1 (en) * | 2005-05-03 | 2006-11-09 | Luca Technologies, Llc. | Biogenic fuel gas generation in geologic hydrocarbon deposits |
| CN201043460Y (en) * | 2007-05-18 | 2008-04-02 | 中国石化股份胜利油田分公司采油工艺研究院 | Air-assistant microorganism-driving ground automatic filling device |
| CN101818634A (en) * | 2010-04-23 | 2010-09-01 | 中国石油化工股份有限公司 | Method for regulating and controlling microbial community for oil extraction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102425398A (en) * | 2011-11-17 | 2012-04-25 | 中国石油化工股份有限公司 | Produced fluid circulating treatment method for microbial flooding |
| CN105201472A (en) * | 2015-09-28 | 2015-12-30 | 中国石油化工股份有限公司 | Oil deposit stratal microflora regulation and control method |
| CN107356498A (en) * | 2017-05-18 | 2017-11-17 | 江苏中能科研仪器发展有限公司 | A kind of heavy oil wells viscosity reducing test device |
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| CN102071933B (en) | 2013-12-18 |
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