CN108915674A - The method in water-bearing layer whether is polluted using the hydraulic fracturing of gas-liquid mixed tracer analysis - Google Patents
The method in water-bearing layer whether is polluted using the hydraulic fracturing of gas-liquid mixed tracer analysis Download PDFInfo
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- 239000000700 radioactive tracer Substances 0.000 title claims abstract description 90
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 238000004458 analytical method Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 239000000126 substance Substances 0.000 claims abstract description 22
- 238000005070 sampling Methods 0.000 claims abstract description 15
- 238000011161 development Methods 0.000 claims abstract description 10
- 238000005065 mining Methods 0.000 claims abstract description 9
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 239000003079 shale oil Substances 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 230000007480 spreading Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 230000008901 benefit Effects 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000011156 evaluation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 34
- 238000013508 migration Methods 0.000 description 9
- 230000005012 migration Effects 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 238000003325 tomography Methods 0.000 description 8
- 239000007791 liquid phase Substances 0.000 description 6
- 229910018503 SF6 Inorganic materials 0.000 description 5
- 150000001924 cycloalkanes Chemical class 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 229960000909 sulfur hexafluoride Drugs 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000383 hazardous chemical Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- -1 Fluorine cycloalkane Chemical class 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical group [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000003894 drinking water pollution Methods 0.000 description 1
- 230000005264 electron capture Effects 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 238000005347 high resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/10—Locating fluid leaks, intrusions or movements
- E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity
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Abstract
The invention belongs to the environmental impact assessment technical fields of shale oil and gas development, disclose a kind of method that water-bearing layer whether is polluted using the hydraulic fracturing of gas-liquid mixed tracer analysis, select gas-liquid mixed tracer：The dosage of chemical gas tracer is calculated according to Brigham-Smith formula (1), and the dosage of trace matter detection is calculated according to Brigham-Smith formula (2)；Gas-liquid mixed tracer is dissolved completely in fracturing fluid, fracturing fluid and tracer are uniformly mixed；Fracturing fluid is injected in water injection well, carries out shale oil-gas mining.The present invention characterizes the gaseous state of shale fractured interval and the harmful substance of liquid by the way that fracturing fluid is added in gas-liquid mixed tracer of reasonable cost respectively, it, can influence of a certain regional hydraulic fracturing activities of accurate evaluation to underground reservoir by the sampling of surrounding well, detection and analysis after pressure break.
Description
Technical field
The invention belongs to the environmental impact assessment technical field of shale oil and gas development more particularly to it is a kind of utilize gas-liquid mixed
The method of tracer analysis hydraulic fracturing pollution underground reservoir.
Background technique
Currently, the prior art commonly used in the trade is such：
1, hydraulic fracturing
Hydraulic fracturing, which refers to, presses off rock and generates crack by injecting fracturing fluid under high pressure, these
Crack can be supported agent (such as sand) support and keep it turned on, so that the hole being connected in rock makes natural gas from rock
Flow out into wellhole.In recent years, hydraulic fracturing is widely used in shale oil and gas development, has thus also caused a series of ring
Border is panic, such as consumes great lot of water resources, water pollution, air pollution, earth's surface and vegetation deterioration, noise pollution and geology and destroys
Deng.Wherein, maximum fear is to think that hydraulic fracturing can establish a pollution channels for Accumulation of Hydrocarbon producing region and drinking water sources
Connection is got up.Currently, this is still have much dispute the problem of.Some scholars think vertically manually to split caused by hydraulic fracturing
Seam is not generally possible to extend to superficial part and drinks water layer to polluted underground water, although and some scholars then think that fracturing fluid may not
Can the vertical too long of distance of extension, but the gases such as methane can migrate upwards along the bad natural gas well of closure or tomography to
Superficial part water-bearing layer, pollutes underground water.Environmental Protection Agency USA (EPA) delivers report, assert current U.S.'s oil-gas mining
The hydraulic fracturing technology that industry generally uses will cause drinking water pollution really under given conditions.It is applicant's understanding that differently
The geological conditions difference in area is larger, as rammell buried depth, the depth in superficial part water-bearing layer, pressure break generate the vertical extension in crack
The developmental state in distance and tomography and crack etc. is all different, therefore cannot must be provided with the analysis result in a certain specific area
There is the conclusion of " hydraulic fracturing meeting (or will not) the pollution underground reservoir " of universality.
2, tracer
Tracer typically refers to inject from injection well, provides that output well samples around by certain sampling later, monitoring
Its output situation carrys out the information such as flow direction, percolation flow velocity and the combination of zones situation of pre- fluid measured.Tracer requires peace
Entirely, environmental protection, easily detection and cost are reasonable, are generally divided into gas and liquid two types, and gas tracer is liquid before injection,
Facilitate storage and management, becomes gaseous state after injecting stratum；And liquid tracer is liquid in earth's surface and underground.
Gas tracer is divided into radioactive gas trace agent and chemical gas tracer, wherein radioactive gas trace agent pair
The mankind and environment are harmful, and chemical gas tracer mainly include freon class gas tracer (destroying ozone layer), it is lithium
Sulphur gas tracer and perfluorinated cycloalkanes gas tracer.The lowest detection volume fraction of sulfur hexafluoride and perfluorinated cycloalkanes is
0.05×10-10, its concentration is measured using gas chromatograph and electron capture detector (ECD), but need to find out its calibration curve in advance.
Liquid tracer includes for example readily soluble inorganic salts of chemical tracer, fluorescent dye and halogenated hydrocarbons and opposite point low
The alcohol (dosage is big, at high cost, and adaptability and poor selectivity, measuring resolution is low, there is environment and personnel safety problem) of protonatomic mass,
Radioactive tracer (unfavorable to personnel, Environmental security), (detection means is many and diverse, expense for stable isotope tracer
It is expensive) and trace matter detection.It wherein, is to bring disaster upon to close Plasma-Mass Spectroscopy by using inductance to the detection of trace matter detection
(HR-ICP-MS) etc. sample is analyzed in advanced instruments detection, and detection minimum detectability reaches 10-15(ppq grades).Trace content
Matter tracer due to safety, dosage is few, at low cost, analysis precision is high the features such as, application is more and more extensive.
About the dosage of gas and liquid tracer, it is divided into total Dilution Model formula and two kinds of Brigham-Smith formula
Calculation method.It under normal circumstances, can be by increasing the dosage of tracer to guarantee to be successfully tested in the range of economy allows.
In conclusion problem of the existing technology is：
(1) underground reservoir whether can be polluted about hydraulic fracturing, there is dispute between different researchers.Due to different work areas
Geological conditions is different, can not obtain the conclusion of " hydraulic fracturing meeting (or will not) pollution underground reservoir " with universality, need
Concrete case is wanted to make a concrete analysis of.
(2) by comparing various tracer types and its advantage and disadvantage, the gas tracer preferably gone out is for sulfur hexafluoride or entirely
Fluorine cycloalkane, liquid tracer are trace matter detection.
(3) present invention provides a method for the first time, by the way that gas-liquid mixed tracer is added in fracturing fluid, and in pressure break
Sampling to well around, detection and analysis afterwards carry out intuitive, the specific work area of accurate evaluation hydraulic fracturing activities to underground water
It influences.
Solve the difficulty and meaning of above-mentioned technical problem：
The present invention is directed the gas phase and liquid phase harmful substance of fractured interval can vertical migration it is aqueous to shallow underground
Layer, migration distance and time are longer, and the present invention therefore should be bigger than conventional inter-well tracer test in tracer dosage, and takes
The sample period is also required to extend.
Summary of the invention
In view of the problems of the existing technology, the hydraulic fracturing of gas-liquid mixed tracer analysis is utilized the present invention provides a kind of
Whether the method in water-bearing layer is polluted.The present invention by fracturing fluid be added gas-liquid mixed tracer, by after pressure break to week
Sampling, the analysis for enclosing well, can influence compared with accurate evaluation pressure break to underground water.
The invention is realized in this way it is a kind of using the hydraulic fracturing of gas-liquid mixed tracer analysis whether impurely under it is aqueous
Layer method include：
In the shale oil gas development process in specific work area, gas-liquid mixed is added to fracturing fluid used in hydraulic fracturing and is shown
Track agent；By the way that the sampling of periphery underground water well, detection and analysis, whether the hydraulic fracturing for evaluating work area can pollute after the completion of pressure break
Underground reservoir.
It specifically includes：
Step is 1.：Selection will carry out the work area of shale oil-gas mining using hydraulic fracturing technology, collect the ground in the region
Matter conditional information, depth, formation fluid situation, tomography and the developmental state of rupture System, underground including pressure break rammell contain
The information such as the depth of water layer；
Step is 2.：It is selected to take in conjunction with the fault conditions of this area according to designed development well position
The underground water well position of sample, bit selecting principle be near fracturing section, and close to the vertical upper longer fracture of extended distance；
Step is 3.：On the basis of sufficiently analysis fracturing fluid ingredient, formation fluid ingredient, suitable gas-liquid mixed is selected to show
Track agent, general gas flow tracer select sulfur hexafluoride or perfluorinated cycloalkanes, and popular in recent years micro of liquid tracer selection
Substance tracer；
Step is 4.：The dosage of chemical gas tracer is designed according to Brigham-Smith formula (1), due to pressure break
The gas phase hazardous substance vertical migration relatively long distance of interval increases 3 times to shallow underground water-bearing layer, therefore by coefficient 14.4：
In formula, GgFor chemical gas tracer dosage (kg)；H is formation thickness (m)；For the porosity (%) on stratum；Sw
For water saturation (%)；CpFor the peak concentration of the effective probe material produced in underground water well；α is spreading constant, generally
Take 0.0153m；L is well spacing (m).
Step is 5.：The dosage of trace matter detection is designed according to Brigham-Smith formula (2), due to pressure break
The liquid phase harmful substance vertical migration relatively long distance of interval increases 3 times to shallow underground water-bearing layer, therefore by coefficient 1.44：
In formula, GlFor trace matter detection dosage (g)；H is formation thickness (m)；For the porosity (%) on stratum；Sw
For water saturation (%)；CpFor the peak concentration of the effective probe material produced in underground water well；α is spreading constant, generally
Take 0.0153m；L is well spacing (m).
Step is 6.：Gas-liquid mixed tracer is dissolved completely in fracturing fluid, dissolution time is greater than 1 hour, by fracturing fluid and
Tracer is uniformly mixed；
Step is 7.：Fracturing fluid is injected in designed water injection well, carries out normal shale oil-gas mining；
Step is 8.：After pressure break, every 2 days, the water sampling 800ml in 2. underground water well that step is selected, it is contemplated that sampling week
Phase is 1 year；
Step is 9.：According to pressure break rammell at a distance from underground reservoir, the sample time of first analysis water-like is determined,
The test analysis (such as the 10th day or the 30th day) of gas-liquid tracer content is carried out to it；
Step is 10.：If doing one-time detection analysis every 10 days always without tracer breakthrough, until tracer occurs；If
Occur without tracer always, then shows that the pressure break in the region does not pollute superficial part water table.
Further, step 3. in the sulfur hexafluoride that selects or perfluorinated cycloalkanes have that analysis speed is fast, high sensitivity, atmosphere
Background is low, thermal stability is good, chemical inertness, it is nontoxic, do not destroy the characteristics such as atmosphere, be ideal nonradioactive tracer；And
Trace matter detection is "dead", pollution-free, security and stability is good, and dosage is few, at low cost, analysis precision is high.And both
It is not susceptible to react after the mixing of gas-liquid tracer, there is certain stability.
Further, the step 4. 5. in gas-liquid tracer amount ratio conventional oil field Interwell tracer dosage increase 3
Times, this is because the liquid phase harmful substance of fractured interval need vertical migration relatively long distance be likely to reach shallow underground it is aqueous
Layer.
Further, step 9. described in test analysis the sample of certain intervals according to rule, can be selected to do, do not need
Test analysis is carried out to whole samples.
Realize that the utilization gas-liquid mixed tracer analysis hydraulic fracturing is another object of the present invention is to provide a kind of
The computer program of the method for no pollution underground reservoir.
Whether another object of the present invention is to provide a kind of realize to utilize the hydraulic fracturing of gas-liquid mixed tracer analysis dirty
Contaminate the information data processing terminal of the method for underground reservoir.
Another object of the present invention is to provide a kind of computer readable storage mediums, including instruction, when it is in computer
When upper operation, so that computer executes whether the utilization gas-liquid mixed tracer analysis hydraulic fracturing pollutes underground reservoir
Method.
Whether impurely the hydraulic fracturing of gas-liquid mixed tracer analysis is utilized another object of the present invention is to provide a kind of
The system in lower water-bearing layer.
In conclusion advantages of the present invention and good effect are：
Currently, " can hydraulic fracturing establish a pollution channels and be connected to Accumulation of Hydrocarbon payzone position with superficial part underground reservoir
Get up " it is have much dispute the problem of.Different regions have different geological conditions, and rammell buried depth, superficial part contain
The developmental state in the depth of water layer, the vertical extended distance in pressure break generation crack and tomography and crack etc. is all different, therefore not
The conclusion of pervasive " hydraulic fracturing meeting (or will not) pollution underground reservoir " can be obtained with the analysis result in specific area.This hair
It is bright by studying whether hydraulic fracturing can pollute underground reservoir using tracer, provide a kind of most intuitive evaluation side
Method can be applied in different pressure break areas, provide most reliable evidence to carry out the environmental impact assessment of pressure break.
The harmful substance of shale fractured interval is divided into gas phase and liquid phase two states, they may pass through pressure-break and tomography
Equal channels are migrated upwards to superficial part underground reservoir, are polluted.The present invention has in view of two kinds of phases of shale fractured interval
The presence of evil substance, the harmful substance of gaseous state and liquid is characterized using gas-liquid mixed tracer respectively, and whether monitor it can be
Underground reservoir is migrated to after pressure break upwards, is polluted.
The present invention, which is directed to, has " hydraulic fracturing whether polluted underground water " of dispute this topic, we directly detect underground
Water describes the problem, simple, intuitive.
Detailed description of the invention
Fig. 1 be it is provided in an embodiment of the present invention using the hydraulic fracturing of gas-liquid mixed tracer analysis whether impurely under it is aqueous
The method flow diagram of layer.
Fig. 2 is the development well (water injection well and producing well) and water sampling provided in an embodiment of the present invention for carrying out hydraulic fracturing
The well location map of well.
Fig. 3 is 3 D stereo schematic diagram provided in an embodiment of the present invention, it is shown that the shale interval of hydraulic fracturing, tomography and
The distribution map in superficial part water-bearing layer.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
In the prior art, not in fracturing fluid be added gas-liquid mixed tracer, cannot by after pressure break to week
Sampling, the analysis for enclosing well, can influence compared with accurate evaluation pressure break to underground water.
As shown in Figure 1, whether impurely provided in an embodiment of the present invention utilize the hydraulic fracturing of gas-liquid mixed tracer analysis
The method in lower water-bearing layer, including：
S101：Selection will carry out the work area of shale oil-gas mining using hydraulic fracturing technology, collect the geology in the region
Conditional information, depth, formation fluid situation, tomography and the developmental state of rupture System including pressure break rammell, underground are aqueous
The information such as the depth of layer.
S102：It is selected to be sampled in conjunction with the fault conditions of this area according to designed development well position
Underground water well position, bit selecting principle is near fracturing section, and close to the vertical upper longer fracture of extended distance.
S103：On the basis of sufficiently analysis fracturing fluid ingredient, formation fluid ingredient, suitable gas-liquid mixed tracer is selected
Agent, general gas flow tracer selects sulfur hexafluoride or perfluorinated cycloalkanes, and liquid tracer selects trace content popular in recent years
Matter tracer.
S104：The dosage of chemical gas tracer is designed according to Brigham-Smith formula (1), due to fractured layer
The gas phase hazardous substance vertical migration relatively long distance of section increases 3 times to shallow underground water-bearing layer, therefore by coefficient 14.4.
S105：The dosage of trace matter detection is designed according to Brigham-Smith formula (2), due to fractured layer
The liquid phase harmful substance vertical migration relatively long distance of section increases 3 times to shallow underground water-bearing layer, therefore by coefficient 1.44.
S106：Gas-liquid mixed tracer is dissolved completely in fracturing fluid, dissolution time is greater than 1 hour, by fracturing fluid and shows
Track agent is uniformly mixed.
S107：Fracturing fluid is injected in designed water injection well, carries out normal shale oil-gas mining.
S108：After pressure break, every 2 days, the water sampling 800ml in the underground water well that step S102 is selected, it is contemplated that sampling week
Phase is 1 year.
S109：According to pressure break rammell at a distance from underground reservoir, the sample time of first analysis water-like is determined, it is right
Its test analysis (such as the 10th day or the 30th day) for carrying out gas-liquid tracer content.
S110：If doing one-time detection analysis every 10 days always without tracer breakthrough, until tracer occurs；If one
Directly occur without tracer, then shows that the pressure break in the region does not pollute superficial part water table.
In step S104, the dosage of chemical gas tracer is designed according to Brigham-Smith formula (1), due to
The gas phase hazardous substance vertical migration relatively long distance of fractured interval increases 3 times to shallow underground water-bearing layer, therefore by coefficient 14.4：
In formula, GgFor chemical gas tracer dosage (kg)；H is formation thickness (m)；For the porosity (%) on stratum；Sw
For water saturation (%)；CpFor the peak concentration of the effective probe material produced in underground water well；α is spreading constant, generally
Take 0.0153m；L is well spacing (m).
In step S105, the dosage of trace matter detection is designed according to Brigham-Smith formula (2), due to
The liquid phase harmful substance vertical migration relatively long distance of fractured interval increases 3 times to shallow underground water-bearing layer, therefore by coefficient 1.44：
In formula, GlFor trace matter detection dosage (g)；H is formation thickness (m)；For the porosity (%) on stratum；Sw
For water saturation (%)；CpFor the peak concentration of the effective probe material produced in underground water well；α is spreading constant, generally
Take 0.0153m；L is well spacing (m).
Fig. 2 is the development well (water injection well and producing well) and water sampling provided in an embodiment of the present invention for carrying out hydraulic fracturing
The well location map of well.
Fig. 3 is 3 D stereo schematic diagram provided in an embodiment of the present invention, it is shown that the shale interval of hydraulic fracturing, tomography and
The distribution map in superficial part water-bearing layer.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of method for whether polluting underground reservoir using the hydraulic fracturing of gas-liquid mixed tracer analysis, which is characterized in that
The method for whether polluting underground reservoir using the hydraulic fracturing of gas-liquid mixed tracer analysis includes：
In the shale oil gas development process in specific work area, gas-liquid mixed tracer is added to fracturing fluid used in hydraulic fracturing
Agent；By the way that the sampling of periphery underground water well, detection and analysis, whether the hydraulic fracturing for evaluating work area can be impurely after the completion of pressure break
Lower water-bearing layer.
2. the side of underground reservoir whether is polluted using the hydraulic fracturing of gas-liquid mixed tracer analysis as described in claim 1
Method, which is characterized in that the method for whether polluting underground reservoir using the hydraulic fracturing of gas-liquid mixed tracer analysis is specific
Including：
Step is 1.：Shale oil-gas mining work area is selected, the geological conditions information in shale oil-gas mining work area is collected；
Step is 2.：According to the position of development well, the underground water well position of sampling is selected；
Step is 3.：Select gas-liquid mixed tracer；
Step is 4.：The dosage of chemical gas tracer is calculated according to Brigham-Smith formula (1),
In formula, GgFor chemical gas tracer dosage kg；H is formation thickness m；For the porosity % on stratum；SwFor containing water saturation
Spend %；CpFor the peak concentration of the effective probe material produced in underground water well；α is spreading constant, takes 0.0153m；L is well spacing
m；
Step is 5.：The dosage of trace matter detection is calculated according to Brigham-Smith formula (2),
In formula, GlFor trace matter detection dosage g；H is formation thickness m；For the porosity % on stratum；SwFor containing water saturation
Spend %；CpFor the peak concentration of the effective probe material produced in underground water well；α is spreading constant, takes 0.0153m；L is well spacing
m；
Step is 6.：Gas-liquid mixed tracer is dissolved completely in fracturing fluid, fracturing fluid and tracer are uniformly mixed；
Step is 7.：Fracturing fluid is injected in water injection well, carries out shale oil-gas mining；
Step is 8.：After pressure break, water sampling in selected underground water well；
Step is 9.：According to pressure break rammell at a distance from underground reservoir, the sample time of first analysis water-like is determined, carry out
The test analysis of gas-liquid tracer content；
Step is 10.：If doing one-time detection analysis every 10 days without tracer breakthrough, until tracer occurs；If always without showing
Track agent occurs, then shows that the pressure break in the region does not pollute superficial part water table.
3. a kind of realization claim 1~2 it is described using the hydraulic fracturing of gas-liquid mixed tracer analysis whether impurely under it is aqueous
The computer program of the method for layer.
4. a kind of realization claim 1~2 it is described using the hydraulic fracturing of gas-liquid mixed tracer analysis whether impurely under it is aqueous
The information data processing terminal of the method for layer.
5. a kind of computer readable storage medium, including instruction, when run on a computer, so that computer is executed as weighed
Whether benefit pollutes the method for underground reservoir using the hydraulic fracturing of gas-liquid mixed tracer analysis described in requiring 1~2.
6. a kind of utilization gas-liquid mixed tracer analysis hydraulic fracturing as described in claim 1~2 whether impurely under it is aqueous
The system that underground reservoir whether is polluted using the hydraulic fracturing of gas-liquid mixed tracer analysis of the method for layer.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111219186A (en) * | 2020-01-14 | 2020-06-02 | 国网湖南省电力有限公司 | Method for storing compressed gas energy by utilizing deep aquifer |
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