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CN112761560A - Bioremediation method for waste drilling mud of oil and gas field and shale gas field - Google Patents

Bioremediation method for waste drilling mud of oil and gas field and shale gas field Download PDF

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Publication number
CN112761560A
CN112761560A CN202011635734.9A CN202011635734A CN112761560A CN 112761560 A CN112761560 A CN 112761560A CN 202011635734 A CN202011635734 A CN 202011635734A CN 112761560 A CN112761560 A CN 112761560A
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well
gas fields
environment
equipment
oil
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Inventor
郭晓中
黄振华
张烨
陆朝晖
张健强
余华文
王达远
欧阳黎明
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Chongqing Institute of Geology and Mineral Resources
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Chongqing Institute of Geology and Mineral Resources
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Priority to CN202011635734.9A priority Critical patent/CN112761560A/en
Publication of CN112761560A publication Critical patent/CN112761560A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/06Arrangements for treating drilling fluids outside the borehole
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses a bioremediation method of waste drilling mud in oil and gas fields and shale gas fields, which comprises the following steps: s1, entering waste drilling wells of oil and gas fields and shale gas fields through equipment or manual work, collecting all garbage in the drilling wells, taking out all artificially manufactured products, returning the artificially manufactured products to the inside of the drilling wells to improve the environment inside the drilling wells, and stopping the environment improvement work after no artificial residual trace exists. The invention relates to the technical field of abandoned drilling wells of oil and gas fields and shale gas fields, and discloses a bioremediation method of abandoned drilling mud of the oil and gas fields and the shale gas fields, which can enable the drilling wells to be recovered to the original ecology more quickly after being abandoned, can quickly recover the artificially damaged positions, protect the ecological environment, has extremely high recovery speed, and can carry out special recovery on problems, so that the recovery effect is better, the natural environment is protected, and the recovery of the damaged positions of the natural environment is accelerated.

Description

Bioremediation method for waste drilling mud of oil and gas field and shale gas field
Technical Field
The invention relates to the technical field of waste drilling and repairing of oil and gas fields and shale gas fields, in particular to a bioremediation method of waste drilling mud of the oil and gas fields and the shale gas fields.
Background
The oil and gas field development is to make a reasonable development scheme and build and put into production the oil and gas field on the basis of comprehensive research on the oil and gas field with industrial value according to detailed exploration results and necessary productive development tests, and to enable the oil and gas field to be produced for a long time according to preset production capacity and economic effect until the development is finished.
The shale gas is natural gas which is rich in organic matters, has a certain commercial biological cause, a certain commercial pyrolytic cause and a certain commercial mixed cause due to organic matter adsorption effect or cracks and matrix pores in rocks in mature dark shale or high-carbon shale.
Bioremediation is a process of reducing the concentration of toxic and harmful substances in a polluted environment or making the toxic and harmful substances harmless by using the vital metabolic activity of organisms, so that the polluted environment can be partially or completely restored to an original state.
The existing bioremediation method of abandoned drilling mud in oil and gas fields and shale gas fields is inconvenient to use, has extremely long remediation time, and cannot carry out the optimal remediation mode according to corresponding questions, so that the remediation time is prolonged, and thus, the drilling cannot be timely put into use, the work of people is inconvenient, the trouble is brought to the workers, and the bioremediation method is extremely unfavorable for the use of people.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a bioremediation method of waste drilling mud in oil and gas fields and shale gas fields, which solves the problems in the background art.
(II) technical scheme
2. In order to achieve the purpose, the invention is realized by the following technical scheme: a bioremediation method of waste drilling mud of oil and gas fields and shale gas fields comprises the following steps:
s1, cleaning the inside of the well and improving the environment: entering waste drilling wells of oil and gas fields and shale gas fields through equipment or manpower, completely collecting garbage in the drilling wells, then completely taking out artificially manufactured products, wherein the artificially manufactured products comprise plastic garbage, chemical industry garbage and household garbage, damaged places and deep dug holes, returning all the collected garbage to the inside of the drilling wells to improve the environment of the inside of the drilling wells after all the collected garbage is sent to the outside of the drilling wells, filling up the manually dug holes and grooves, and burying the equipment and the discharge positions of the artificial wastes until the environment inside the drilling wells reaches the standard, wherein after no artificial residual trace exists, the environment improvement work is stopped;
s2, measuring the environment and air quality inside the well through equipment: the method comprises the steps that a worker takes various instruments and enters a well, monitors the environment and the air quality in the well, detects whether the air quality and the environment are in accordance with the existence of organisms, simultaneously stores all measurement data into a storage module, summarizes the measurement data, transmits the data to a detection room, and analyzes the data by a tester;
s3, judging the environment and the air quality and carrying out targeted processing according to the result: the tester analyzes the measurement data, first detects whether the soil in the well is corrosive and available for plant growth, then detecting whether more dust and harmful substances are left in the air in the well, then analyzing the water resource degree in the well to judge whether living organisms can survive or not, if a plurality of soils have corrosiveness, digging out the soils with corrosiveness through digging equipment, then filling normal soil transported in other areas, applying fertilizer into the soil if the soil is not available for plant growth, if excessive PM2.5 remains in the air, a plurality of purifying devices are arranged to purify the air, if harmful substances are left in the air, finding out sources of the harmful substances and then removing the sources of the harmful substances, completely replacing the air in the well by using ventilation equipment to achieve the purpose of improvement, and if the water resources in the well are found to be less, improving the environment by adopting a manual water adding mode;
s4, installing monitoring equipment and detection equipment inside the well and at the wellhead: after the environment is improved, plants and organisms are planted and placed in the well, so that the interior of the well is accelerated to be repaired, meanwhile, monitoring equipment, air detection equipment, humidity detection equipment and temperature monitoring equipment are installed in the well and at a wellhead, so that a worker can clearly know various data and information in the well even if the worker cannot attend beside the well in real time, and once the monitoring equipment and the detection equipment detect that the interior of the well is in a problem, the worker can immediately report the problem to the worker, so that the worker can process the problem in the first time, and the problem in the interior of the well is effectively prevented;
s5, analyzing and processing according to the monitoring equipment and the data measured by the monitoring equipment: keep long-time control to the information that every week just will all supervisory equipment and check out test set detected gathers the analysis, compares the information of present week with the information of previous week, obtains the difference with previous week, and analyzes out the reason, improves the restoration to the reason, even repair in the very first time that goes wrong in the drilling well inside, avoid its ecological environment to suffer destruction and lead to repairing the failure.
Preferably, the garbage removed in the step S1 when the internal environment of the well is improved is sorted and stored, and then is sequentially sent to a garbage disposal plant according to the sorting.
Preferably, the facial gas mask is carried when the air quality is measured and the garbage in the well is removed in the step S2.
Preferably, in the S3, during the environmental processing, the problems are solved item by item according to the order of occurrence of the problems, and different problems are processed in sequence, and at most one problem is processed at a time.
Preferably, in S4, a protective sleeve is sleeved outside the detection device installed inside the drilling well, so as to prevent corrosion of the detection device due to air stored for a long time, and a camouflage device is also installed on the detection device placed at the drilling port while the protective sleeve is sleeved on the detection device, so as to prevent other organisms from damaging the detection device, thereby enabling the detector to be more conveniently integrated into the natural environment.
Preferably, the analysis data and the obtained result data in S5 are all stored in the cloud, so as to facilitate the subsequent user to query the data.
(III) advantageous effects
The invention provides a bioremediation method of waste drilling mud in oil and gas fields and shale gas fields. The method has the following beneficial effects: the bioremediation method of the abandoned drilling mud in the oil and gas field and the shale gas field comprises the steps of analyzing measured data through testers, firstly detecting whether soil in a drilling well is corrosive or not and whether plants can grow or not, then detecting whether more dust and harmful substances are left in the air in the drilling well or not, then analyzing the degree of water resources in the drilling well to judge whether organisms can survive or not, digging out the corrosive soil through excavating equipment if a plurality of soils are corrosive, then conveying normal soil from other places, applying fertilizer to the soil if plants cannot grow, placing a plurality of purifying equipment to purify the air if excessive PM2.5 is left in the air, finding out sources of the harmful substances if the harmful substances are left in the air, clearing the harmful substances, completely replacing the air in the drilling well through ventilation equipment to achieve the purpose of improvement, if it is less to discover well drilling water resource, then just adopt artifical mode of adding water to improve the environment, when the environment was handled in S3, need solve in proper order to the problem of difference, can not once only carry out a plurality of constructions, once only carry out going on of one improvement work, can let the well drilling can be faster after abandonment resume original ecology in, let the restoration that the position of being artificially destroyed can be quick, the ecological environment has been protected, and the recovery rate is extremely fast, carry out special restoration to the problem, let prosthetic effect better, thereby protect natural environment, make the damaged place of natural environment resume with higher speed.
Drawings
Fig. 1 is a flow chart of the working principle of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a technical solution: a bioremediation method of waste drilling mud of oil and gas fields and shale gas fields comprises the following steps:
s1, firstly, entering waste drilling wells of oil and gas fields and shale gas fields through equipment or manpower, then collecting all garbage in the drilling wells, then taking out all artificially manufactured products, wherein the artificially manufactured products comprise plastic garbage, chemical garbage and domestic garbage, and also have damaged places and dug deeper caves, sending all the collected garbage to the outside of the drilling wells, then returning the garbage to the inside of the drilling wells for environment improvement, filling some manually dug pits and grooves, and burying the discharge positions of the equipment and the artificial wastes until the environment inside the drilling wells reaches the standard, and stopping the environment improvement work after no artificial residual marks exist.
S2, next, the staff takes various instruments and enters the well, then the environment and the air quality in the well are measured, whether the air quality and the environment are in accordance with the existence of organisms is detected, meanwhile, the staff stores all the measured data in the storage module, then the data are gathered and transmitted to the detection room to be analyzed by the tester, and the staff detects the air by using the air detection sensor to detect the air in the well, detecting the substances in the air through the harmful gas sensor, collecting the air at each position through the air collection device, and then sending the air to the laboratory to detect the substances remained in the air.
S3, analyzing the measured data by the tester, firstly detecting whether the soil in the well is corrosive and whether the plant can grow, then detecting whether more dust and harmful substances are left in the air in the well, then analyzing the degree of water resources in the well to judge whether living organisms can survive or not, if a plurality of soils have corrosiveness, digging out the soils with corrosiveness through digging equipment, then transporting the normal soil from other places, applying fertilizer to the soil if the plants can not grow, if the residual PM2.5 in the air is too high, a plurality of purifying devices are arranged to purify the air, if the harmful substances are left in the air, the source of the harmful substances is found to be eliminated, the air in the well is completely replaced by the ventilation equipment to achieve the purpose of improvement, and if the water resource in the well is found to be less, the environment is improved by adopting a manual water adding mode.
S4, after the environment is improved, plants and organisms are planted in the drilled well to accelerate the restoration of the inside of the drilled well, meanwhile, monitoring equipment, air detection equipment, humidity detection equipment and temperature monitoring equipment are arranged in the drilled well, and monitoring equipment is also arranged at a well head, so that various data and information in the drilled well can be cleared even if a worker does not attend beside the drilled well in real time, once the detection equipment detects that a problem occurs in the drilled well, the problem can be reported to the worker immediately, the worker can process the problem at the first time, the problem occurring in the drilled well is effectively prevented, a typical television monitoring system mainly comprises two parts, namely front-end equipment and rear-end equipment, wherein the front-end equipment usually comprises a camera, a manual or electric lens, a cradle head, a protective cover, a monitor, an alarm detector, a multifunctional decoder and the like, they are each responsible for their own job,and establishes corresponding contact (transmitting video/audio signals and control and alarm signals) with various devices of the central control system through wired, wireless or optical fiber transmission media. In an actual television monitoring system, these front-end devices are not necessarily used simultaneously, but a camera and a lens for realizing monitoring of live image acquisition are indispensable. The back-end equipment can be further divided into central control equipment and sub-control equipment, and can continuously monitor SO in the atmosphere2、NO2、O3、CO、H2S、NH3HF gas, and comprehensively displaying required measurement data. The humidity measuring instrument is characterized in that ambient air passes through a filter by an air pump, is respectively sent to a sensor air chamber at the flow rate of 300mL/min after passing through a flow regulator, signals generated when passing through a sensor are amplified and subjected to A/D conversion, and are acquired, calculated and processed by a microprocessor to generate concentration result data, and simultaneously, the concentration result data are stored or sent to an information center through an RS485 serial interface6The temperature online monitoring device is used for acquiring temperature data in real time by utilizing a temperature sensor arranged at a measured point, and intelligently transmitting the electric power to a corresponding receiving device through collecting the data.
S5, in long-time monitoring, the information detected by all the detectors is gathered and analyzed every other week, then the information is compared with the information of the previous week, the places different from the previous week are detected, the reasons are analyzed, and the repairing is improved aiming at the reasons, so that the repairing can be carried out at the first time even if the inside of the well is in a problem, and the repairing failure caused by the damage of the ecological environment is avoided.
In the invention, the garbage removed in the S1 process of improving the internal environment of the well is classified and stored, and then is sent to a garbage disposal plant in sequence according to the classification.
In the invention, the facial gas mask is required to be carried when the air quality is measured and the garbage in the well is removed in S2.
In the present invention, in S3, during the environmental processing, different problems need to be solved sequentially, and the problems are solved one by one according to the occurrence sequence of the problems, so that different problems are processed sequentially, and at most one problem is processed at a time.
According to the invention, a protective sleeve is sleeved outside the detection equipment arranged in the S4 well, so that the corrosion of the detection equipment caused by air stored for a long time is avoided, and the detector arranged at the well mouth is also provided with camouflage equipment while being sleeved with the protective sleeve, so that the damage of other organisms to the detector is avoided, and the detector is more conveniently integrated into the natural environment.
In the invention, the analysis data and the obtained result data in the S5 are all stored in the cloud, so that the user can conveniently inquire the data later.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A bioremediation method of waste drilling mud of oil and gas fields and shale gas fields comprises the following steps:
s1, cleaning the inside of the well and improving the environment: entering waste drilling wells of oil and gas fields and shale gas fields through equipment or manpower, completely collecting garbage in the drilling wells, then completely taking out artificially manufactured products, wherein the artificially manufactured products comprise plastic garbage, chemical industry garbage and household garbage, damaged places and deep dug holes, returning all the collected garbage to the inside of the drilling wells to improve the environment of the inside of the drilling wells after all the collected garbage is sent to the outside of the drilling wells, filling up the manually dug holes and grooves, and burying the equipment and the discharge positions of the artificial wastes until the environment inside the drilling wells reaches the standard, wherein after no artificial residual trace exists, the environment improvement work is stopped;
s2, measuring the environment and air quality inside the well through equipment: the method comprises the steps that a worker takes various instruments and enters a well, monitors the environment and the air quality in the well, detects whether the air quality and the environment are in accordance with the existence of organisms, simultaneously stores all measurement data into a storage module, summarizes the measurement data, transmits the data to a detection room, and analyzes the data by a tester;
s3, judging the environment and the air quality and carrying out targeted processing according to the result: the tester analyzes the measurement data, first detects whether the soil in the well is corrosive and available for plant growth, then detecting whether more dust and harmful substances are left in the air in the well, then analyzing the water resource degree in the well to judge whether living organisms can survive or not, if a plurality of soils have corrosiveness, digging out the soils with corrosiveness through digging equipment, then filling normal soil transported in other areas, applying fertilizer into the soil if the soil is not available for plant growth, if excessive PM2.5 remains in the air, a plurality of purifying devices are arranged to purify the air, if harmful substances are left in the air, finding out sources of the harmful substances and then removing the sources of the harmful substances, completely replacing the air in the well by using ventilation equipment to achieve the purpose of improvement, and if the water resources in the well are found to be less, improving the environment by adopting a manual water adding mode;
s4, installing monitoring equipment and detection equipment inside the well and at the wellhead: after the environment is improved, plants and organisms are planted and placed in the well, so that the interior of the well is accelerated to be repaired, meanwhile, monitoring equipment, air detection equipment, humidity detection equipment and temperature monitoring equipment are installed in the well and at a wellhead, so that a worker can clearly know various data and information in the well even if the worker cannot attend beside the well in real time, and once the monitoring equipment and the detection equipment detect that the interior of the well is in a problem, the worker can immediately report the problem to the worker, so that the worker can process the problem in the first time, and the problem in the interior of the well is effectively prevented;
s5, analyzing and processing according to the monitoring equipment and the data measured by the monitoring equipment: keep long-time control to the information that every week just will all supervisory equipment and check out test set detected gathers the analysis, compares the information of present week with the information of previous week, obtains the difference with previous week, and analyzes out the reason, improves the restoration to the reason, even repair in the very first time that goes wrong in the drilling well inside, avoid its ecological environment to suffer destruction and lead to repairing the failure.
2. The bioremediation method of waste drilling mud for oil and gas fields and shale gas fields according to claim 1, wherein: and in the S1, the garbage removed when the internal environment of the well is improved is classified and stored, and then the garbage is sent to a garbage disposal plant in sequence according to classification.
3. The bioremediation method of waste drilling mud for oil and gas fields and shale gas fields according to claim 1, wherein: when measuring the air quality and when cleaing away the inside rubbish of well drilling in S2, all need carry facial gas mask.
4. The bioremediation method of waste drilling mud for oil and gas fields and shale gas fields according to claim 1, wherein: in the S3, during the environmental processing, the problems are solved item by item according to the order of occurrence of the problems, and different problems are processed in sequence, and at most one problem is processed at a time.
5. The bioremediation method of waste drilling mud for oil and gas fields and shale gas fields according to claim 1, wherein: and in the S4, a protective sleeve is sleeved outside the detection equipment arranged in the drilling well, so that the detection equipment is prevented from being corroded by air stored for a long time, and camouflage equipment is also arranged on the detection equipment arranged at the drilling port while the protective sleeve is sleeved on the detection equipment, so that other organisms are prevented from damaging the detection equipment, and the detector is more conveniently integrated into the natural environment.
6. The bioremediation method of waste drilling mud for oil and gas fields and shale gas fields according to claim 1, wherein: the analyzed data and the obtained result data in the step S5 are all stored in the cloud, so that the subsequent user can conveniently inquire the data.
CN202011635734.9A 2020-12-31 2020-12-31 Bioremediation method for waste drilling mud of oil and gas field and shale gas field Pending CN112761560A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044951A1 (en) * 1998-03-04 1999-09-10 Mandt Mikkel G Surge anoxic mix sequencing batch reactor systems
GB0100359D0 (en) * 2000-01-07 2001-02-14 Cuthbertson Maunsell Ltd Treatment of drilling mud
CN207634049U (en) * 2017-11-09 2018-07-20 中国石油化工股份有限公司 A kind of rejected well drilling liquid harmless treatment device
CN210367290U (en) * 2019-06-04 2020-04-21 重庆华地资环科技有限公司 Shale gas drilling operation waste water does not fall to ground preprocessing device
CN111610303A (en) * 2020-06-30 2020-09-01 重庆地质矿产研究院 Underground water environment detection method for shale gas development area

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044951A1 (en) * 1998-03-04 1999-09-10 Mandt Mikkel G Surge anoxic mix sequencing batch reactor systems
GB0100359D0 (en) * 2000-01-07 2001-02-14 Cuthbertson Maunsell Ltd Treatment of drilling mud
CN207634049U (en) * 2017-11-09 2018-07-20 中国石油化工股份有限公司 A kind of rejected well drilling liquid harmless treatment device
CN210367290U (en) * 2019-06-04 2020-04-21 重庆华地资环科技有限公司 Shale gas drilling operation waste water does not fall to ground preprocessing device
CN111610303A (en) * 2020-06-30 2020-09-01 重庆地质矿产研究院 Underground water environment detection method for shale gas development area

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Title
大辞海编辑委员会: "《大辞海》", 31 December 2015, 上海辞书出版社, pages: 115 *
林孟雄等: "油气田钻井废弃泥浆土地法处理沥滤液扩散的环境分析", 《内蒙古石油化工》, no. 06, 28 June 2006 (2006-06-28) *

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