CN108843298A - The quick well choosing method of coal bed gas well refracturing and device based on mining data - Google Patents
The quick well choosing method of coal bed gas well refracturing and device based on mining data Download PDFInfo
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- CN108843298A CN108843298A CN201810675687.7A CN201810675687A CN108843298A CN 108843298 A CN108843298 A CN 108843298A CN 201810675687 A CN201810675687 A CN 201810675687A CN 108843298 A CN108843298 A CN 108843298A
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- 238000005065 mining Methods 0.000 title claims abstract description 98
- 239000003245 coal Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000004458 analytical method Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000009418 renovation Methods 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 238000003860 storage Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 5
- 235000020681 well water Nutrition 0.000 description 5
- 239000002349 well water Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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Abstract
The present invention provides a kind of quick well choosing method of coal bed gas well refracturing and device based on mining data, is related to oil gas field renovation technique field, the method includes：Obtain the mining data of the offset well of target well and target well；Mining data according to preset classifying rules according to target well and the offset well of target well classify to target well；The target well that can carry out refracturing is chosen according to classification results.Based on target well and its offset well etc. mining data easy to collect, it is analyzed by the mining data to more wells to classify to target well, target well is rationally and effectively divided into multiple classifications, there can be detailed division to each index of target well, it overcomes existing coal bed gas well refracturing well selecting principle and establishes this defect on single well analysis basis mostly, required basic data is few, classify convenient and efficient, the selection for fast implementing the target well that may be repeated pressure break can be assisted.
Description
Technical field
The present invention relates to oil gas field renovation technique fields, in particular to a kind of coal bed gas well based on mining data
The quick well choosing method of refracturing and device.
Background technique
China's coal bed gas resource very abundant, buried depth are about 36.8 trillion with shallow coal bed gas resource total amount at 2000 meters
m3, mining resources are abundant, and development and utilization coal bed gas has very big economic value and social benefit.Since coal seam is low porosity and low permeability
Compact reservoir, the methane stored in coal seam in coal petrography, therefore are generally required with ADSORPTION STATE preservation and carry out hydraulic fracturing to coal seam
Transformation, then carries out drainage and step-down, could produce the methane for being adsorbed in coal petrography surface.Due to Occurrence of Coalbed Methane state and open
Originating party formula and conventional gas and oil have very big difference, therefore conventional oil gas well refracturing well selecting principle is not fully appropriate for coal bed gas
Well, and current coal bed gas well refracturing well selecting principle is established mostly on single well analysis basis, and base required for well is selected
Plinth data are more, and it is complicated to select well step, and often scene lacks related data, therefore is restricted when field application.
Summary of the invention
In view of this, the embodiment of the present invention is designed to provide a kind of coal bed gas well refracturing based on mining data
Quick well choosing method and device, with provide it is a kind of quickly and well choosing method, improve existing conventional oil gas well refracturing and select well
Principle is not applied for the problem of coal bed gas well.
The technical solution adopted by the present invention is as follows：
The embodiment of the invention provides a kind of quick well choosing method of coal bed gas well refracturing based on mining data, it is described
Method includes：Obtain the mining data of the offset well of target well and the target well；According to preset classifying rules according to the mesh
The mining data of the offset well of mark well and the target well classify to the target well；Being chosen according to the classification results can be into
The target well of row refracturing.
Further, the mining data include the day during the entire mining of the offset well of target well and the target well
Water yield and daily output tolerance.
Further, the mining data according to preset classifying rules according to the target well and the offset well of the target well
The step of classifying to the target well include：If the current daily output tolerance of the target well is greater than the first preset value, by institute
It states target well and is divided into first kind target well.
Further, the mining according to preset classifying rules according to the target well and the offset well of the target well
The step of data classify to the target well further include：When the current daily output tolerance of the target well is less than the first preset value
And historical high daily output tolerance be greater than the first preset value when：If the current daily output tolerance of the offset well of the target well is pre- less than first
If value, is divided into the 4th class target well for the target well；When the current daily output tolerance of the target well is less than the first preset value
And historical high daily output tolerance be greater than the first preset value when：If it is pre- that the current daily output tolerance of the offset well of the target well is greater than first
If value, and the current water yield per day of the target well is greater than the second preset value, and the target well is divided into the second class target well；
When the current daily output tolerance of the target well is less than the first preset value and historical high daily output tolerance is greater than the first preset value：If
The current daily output tolerance of the offset well of the target well is greater than the first preset value, and the current water yield per day of the target well is less than the
The target well is divided into tertiary target well by two preset values.
Further, the mining according to preset classifying rules according to the target well and the offset well of the target well
The step of data classify to the target well further include：When the current daily output tolerance of the target well and the target well are gone through
History highest daily output tolerance is when being respectively less than the first preset value, if to be greater than first default for the current daily output tolerance of the offset well of the target well
Value, is divided into the 5th class target well for the target well.
Further, the mining according to preset classifying rules according to the target well and the offset well of the target well
The step of data classify to the target well further include：When the current daily output tolerance of the target well and the target well are gone through
History highest daily output tolerance is when being respectively less than the first preset value, if the offset well of the target well it is current daily output tolerance it is default less than first
Value, is divided into the 6th class target well for the target well.
Further, the offset well of the target well includes that distance is the smallest on multiple preset directions with the target well
Well.
Further, first preset value is 500m3。
The present invention also provides a kind of quick well selecting device of coal bed gas well refracturing based on mining data, described device
For executing the quick well choosing method of coal bed gas well refracturing based on mining data, described device includes：Module is obtained, is used for
Obtain the mining data of the offset well of target well and the target well；Rule establishes module, for establishing classifying rules；Classification mould
Block is classified for being based on classifying rules according to the mining data of the target well and the offset well of the target well；Choose mould
Block, for choosing the target well that can carry out refracturing according to the classification results.
Further, the mining data include the day during the entire mining of the offset well of target well and the target well
Water yield and daily output tolerance.
Compared with the prior art, the invention has the advantages that：
A kind of quick well choosing method of coal bed gas well refracturing and device based on mining data provided by the invention.It is described
Method includes：Obtain the mining data of the offset well of target well and the target well；According to preset classifying rules according to the mesh
The mining data of the offset well of mark well and the target well classify to the target well；Being chosen according to the classification results can be into
The target well of row refracturing.Based on target well and its offset well etc. mining data easy to collect, pass through the mining to more wells
Data are analyzed to classify to target well, are overcome existing coal bed gas well refracturing well selecting principle and are established mostly in list
This defect on well analysis foundation, required basic data is few, and required basic data, classification facilitate fast live easily collecting together
It is prompt.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 shows a kind of schematic diagram for selecting well system provided by the present invention.
Fig. 2 shows the flow charts of the quick well choosing method of coal bed gas well refracturing based on mining data.
Fig. 3 shows the classification process figure of step S20.
Fig. 4 shows the functional block diagram of the quick well selecting device of coal bed gas well refracturing based on mining data.
Icon：100- selects well system；101- memory；102- storage control；103- processor；104- Peripheral Interface；
105- display unit；106- input-output unit；Coal bed gas well refracturing quick well selecting device of the 200- based on mining data；
210- obtains module；220- rule establishes module；230- categorization module；240- chooses module.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it is also necessary to explanation, herein, such as first and second or the like relationship art
Language is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying this
There are any actual relationship or orders between a little entities or operation.The terms "include", "comprise" or its it is any its
He is intended to non-exclusive inclusion by variant, so that the process, method, article or equipment including a series of elements is not
Only include those elements, but also including other elements that are not explicitly listed, or further include for this process, method,
Article or the intrinsic element of equipment.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in the process, method, article or apparatus that includes the element.For
For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Fig. 1 shows a kind of block diagram for selecting well system 100 of present pre-ferred embodiments offer.It is described to select well system
100 can be desktop computer, laptop, tablet computer, smart phone, personal digital assistant (personal
Digital assistant, PDA) etc..It is described that select well system 100 include that the coal bed gas well refracturing based on mining data is fast
Fast well selecting device 200, memory 101, storage control 102, processor 103, Peripheral Interface 104, display unit 105, input
Output unit 106.
The memory 101, storage control 102, processor 103, Peripheral Interface 104, display unit 105, input are defeated
Each element of unit 106 is directly or indirectly electrically connected between each other out, to realize the transmission or interaction of data.For example, these
Element can be realized by one or more communication bus or signal wire be electrically connected between each other.The coal based on mining data
The layer quick well selecting device 200 of gas well refracturing includes that at least one can be stored in the form of software or firmware (firmware)
In the memory 101 or the software that is solidificated in the operating system (operating system, OS) for selecting well system 100
Functional module.The processor 103 is used to execute the executable module stored in memory 101, such as described based on mining number
According to the quick well selecting device 200 of the coal bed gas well refracturing software function module or computer program that include.
Wherein, memory 101 may be, but not limited to, random access memory (Random Access Memory,
RAM), read-only memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Wherein, memory 101 is for storing program, and the processor 103 executes described program, this hair after receiving and executing instruction
Method performed by the server defined as process that bright any embodiment discloses can be applied in processor 103, Huo Zheyou
Processor 103 is realized.
Processor 103 may be a kind of IC chip, the processing capacity with signal.Above-mentioned processor 103 can
To be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit
(Network Processor, abbreviation NP) etc.；Can also be digital signal processor (DSP), specific integrated circuit (ASIC),
Field programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hard
Part component.It may be implemented or execute disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor
It can be microprocessor, which is also possible to any conventional processor 103 etc..
Various input/output devices are couple processor 103 and memory 101 by the Peripheral Interface 104.Some
In embodiment, Peripheral Interface 104, processor 103 and storage control 102 can be realized in one single chip.Other one
In a little examples, they can be realized by independent chip respectively.
Display unit 105 provides interactive interface (such as user's operation circle in described select between well system 100 and user
Face) or for display image data give user reference.For example, the classification results etc. of display coal bed gas well.In the present embodiment,
The display unit 105 can be liquid crystal display or touch control display.It, can be to support single-point and more if touch control display
Capacitance type touch control screen or resistance type touch control screen of point touch control operation etc..Single-point and multi-point touch operation is supported to refer to touch control display
It can sense one or more positions while the touch control operation generated on the touch control display, and the touching that this is sensed
Control operation transfers to processor 103 to be calculated and handled.
Input-output unit 106 realizes user and the interaction for selecting well system 100 for being supplied to user input data,
Such as it can be used for inputting the mining data of the offset well of target well and target well, such as the neck of target well and target well can be inputted
The Production curve etc. of prize.
China's coal bed gas resource very abundant, buried depth are about 36.8 trillion with shallow coal bed gas resource total amount at 2000 meters
m3, mining resources are abundant, and development and utilization coal bed gas has very big economic value and social benefit.Since coal seam is low porosity and low permeability
Compact reservoir, the methane stored in coal seam in coal petrography, therefore are generally required with ADSORPTION STATE preservation and carry out hydraulic fracturing to coal seam
Transformation, then carries out drainage and step-down, could produce the methane for being adsorbed in coal petrography surface.Due to Occurrence of Coalbed Methane state and open
Originating party formula and conventional gas and oil have very big difference, therefore conventional oil gas well refracturing well selecting principle is not fully appropriate for coal bed gas
Well, and current coal bed gas well refracturing well selecting principle is established mostly on single well analysis basis, and base required for well is selected
Plinth data are more, and it is complicated to select well step, and often scene lacks related data, therefore is restricted when field application.
First embodiment
The present embodiment provides a kind of quick well choosing method of coal bed gas well refracturing based on mining data, it is existing to improve
Conventional oil gas well refracturing well selecting principle the problem of being not applied for coal bed gas well.Referring to Fig. 2, Fig. 2 shows this realities
The flow chart of the quick well choosing method of coal bed gas well refracturing based on mining data of example offer is provided.Base provided in this embodiment
In the quick well choosing method of coal bed gas well refracturing of mining data include step S10~step S40.
Step S10：Obtain the mining data of the offset well of target well and the target well.
The mining data of the offset well of target coal seam gas well and the target coal seam gas well are obtained, it can be by being stored with mesh
The server for marking the mining data of the offset well of well and the target well sends data requesting instructions and obtains, can also be by staff
Upload above-mentioned data.The offset well of the target well refers to the target well the smallest well of distance on multiple preset directions.
For example, Si Koujing nearest with a distance from the four direction of target well east, south, west, north.The mining data include target well and its neighbour
The mining data of well, such as：Water yield per day during entire mining of target well and its offset well, daily output tolerance, liquid level,
Casing pressure etc..
Preferably, the mining data can also be that the Production curve of the offset well from the target well or target well obtains.
Step S20：Establish classifying rules.
Mining data based on the target well and its offset well establish classifying rules.According to target well and the offset well of target well
Water yield per day, currently produce tolerance daily, the data such as history daily output tolerance, liquid level, casing pressure establish classifying rules.
Referring to Fig. 3, Fig. 3 shows the classification process figure of the classifying rules of the present embodiment.Preferably, setting first is default
Value and the second preset value will currently be produced daily tolerance and be classified based on first preset value.If the current daily gas of the target well
Amount is greater than the first preset value, then the target well is divided into first kind target well.
For currently producing target well of the tolerance less than the first preset value daily, then tolerance, current daily output are produced daily according to its history
Water and the current daily output tolerance of offset well are classified.
When the current daily output tolerance of the target well is less than the first preset value and historical high daily output tolerance is greater than first in advance
If when value：If the current daily output tolerance of the offset well of the target well is divided into the 4th less than the first preset value, by the target well
Class target well.
Preferably, when the current daily output tolerance of the target well less than the first preset value and historical high daily output tolerance be greater than
When the first preset value：If the offset well of the target well current daily output tolerance is greater than the first preset value, and the target well is worked as
Preceding water yield per day is greater than the second preset value, and the target well is divided into the second class target well.
When the current daily output tolerance of the target well is less than the first preset value and historical high daily output tolerance is greater than first in advance
If when value：If the current daily output tolerance of the offset well of the target well is greater than the first preset value, and the current daily output of the target well
Water is divided into tertiary target well less than the second preset value, by the target well.
Preferably, when the current daily output tolerance of the target well and target well historical high daily output tolerance are respectively less than the
When one preset value, if the current daily output tolerance of the offset well of the target well is greater than the first preset value, the target well is divided into
5th class target well.
It is preset when the current daily output tolerance of the target well and target well historical high daily output tolerance are respectively less than first
When value, if the target well is divided into the 6th class less than the first preset value by the current daily output tolerance of the offset well of the target well
Target well.
In this present embodiment, first preset value can be set to 500m3, second preset value is set as 2m3, but
It is without being limited thereto, it can also be the other numerical value set up according to the actual situation.
Step S30：Mining data according to preset classifying rules according to the target well and the offset well of the target well
Classify to the target well.
The mining data of the offset well of the target well and the target well that will acquire are based on the classifying rules preestablished to institute
Target well is stated to classify.
Step S40：The target well that can carry out refracturing is chosen according to the classification results.
In this implementation, first kind target well is that current daily output tolerance is greater than 500m3, such well daily output tolerance is medium,
It is not recommended that carrying out refracturing.
Second class well is that current daily output tolerance is less than 500m3, daily output water is greater than 2m3, but historical high daily output tolerance is greater than
500m3, and the current daily output tolerance of offset well is greater than 500m3.Since the daily gas of offset well is greater than 500m3, illustrate near the target well
Current mining resources are abundant, and daily output water is greater than 2m3, it is unobstructed to the main seepage channel of pit shaft to illustrate stratum, but daily gas is less than
500m3, explanation may lead to far and near area coal petrography matrix micropores gap or micro- due to stopping finding time longer or stopping taking out more frequent
Gas lock effect is formed in crack.Such well suggestion carries out refracturing, releases gas lock effect.
Third class well is that current daily output tolerance is less than 500m3, daily output water is less than 2m3, but history maximum daily output tolerance is greater than
500m3, and offset well daily output tolerance is greater than 500m3.Since offset well daily gas is greater than 500m3, illustrate current near the well to adopt money
Source is abundant.Due to daily gas and daily output water all very littles, explanation may cause since pump drainage speed early period is excessive or midway stops taking out
Coal dust plugs seepage channel.Such well suggestion carries out refracturing, dredges seepage channel again.
4th class well is that current daily output tolerance is less than 500m3, offset well daily output tolerance is again smaller than 500m3, but history maximum day
Gas production is greater than 500m3.This kind of well is in the preferable region of reservoir properties, but current well and its offset well daily output tolerance is small
In 500m3, this may be because that the well group comes into the underproduction phase, it is also possible to be that operating condition reason causes all wells of the well group all to be sent out
Anger lock or coal seam blocking, specific reason for low yield are unknown.Therefore such well is it is not recommended that preferential refracturing.
5th class well is to produce tolerance daily during entire mining to be both less than 500m3, but offset well it is current daily output it is large-minded
In 500m3.Since offset well daily gas is greater than 500m3, illustrate that mining resources current near the well are abundant, but entire mining process
Middle daily output tolerance is both less than 500m3, illustrate that possible first time fracturing reform is insufficient.Therefore such well suggestion carries out repeating pressure
It splits, increases transformation volume.
6th class well is to produce tolerance daily during entire mining to be both less than 500m3, the current gas production of offset well again smaller than
500m3.This kind of well is likely to be at the poor region of reservoir properties, it is also possible to be that the well group first time fracturing reform does not fill
Point, specific reason for low yield is unknown.Therefore such well is it is not recommended that preferential refracturing.
According to the classifying and selecting rule of setting, if the target well belongs to second, third or the 5th class, it is recommended that carrying out weight
Multiple pressure break.
In this present embodiment, according to the classifying and selecting of setting rule, the row of the offset well based on the target well and target well
Data are adopted, export the classification results to target well, and provide whether suggestion carries out refracturing.
Second embodiment
A kind of quick well selecting device 200 of the coal bed gas well refracturing based on mining data is present embodiments provided, it is described
The quick well choosing method of coal bed gas well refracturing based on mining data that device provides for realizing first embodiment.
It is quickly selected referring to Fig. 4, Fig. 4 shows the coal bed gas well refracturing provided in this embodiment based on mining data
The functional block diagram of well device 200.
It should be noted that the coal bed gas well refracturing quick well selecting device provided in this embodiment based on mining data
200, the quick well choosing method base of the coal bed gas well refracturing based on mining data that basic principle and first embodiment provide
This is identical, and to briefly describe, the present embodiment is no longer described in detail, and the present embodiment does not introduce detailed place, please refers to first
Related content in embodiment.
The quick well selecting device 200 of the coal bed gas well refracturing based on mining data includes obtaining module 210, rule
It establishes module 220, categorization module 230 and chooses module 240.
Wherein, module 210, the mining data of the offset well for obtaining target well and the target well are obtained.It can be to depositing
The server for containing the mining data of the offset well of target well and the target well sends data requesting instructions and obtains, can also be by work
Make personnel and above-mentioned data are uploaded by input-output unit 106.The offset well of the target well refers to the target well more
The smallest well of distance on a preset direction.For example, Si Koujing nearest with a distance from the four direction of target well east, south, west, north.Institute
The mining data that mining data include target well and its offset well are stated, such as：Day during target well and its entire mining of offset well
Water yield, daily output tolerance, liquid level, casing pressure etc..
Rule establishes module 220, and the mining data classification for establishing the offset well based on target well and the target well is advised
Then.In this present embodiment, according to target well and the water yield per day of the offset well of target well, currently produce tolerance daily, history produce daily tolerance,
The data such as liquid level, casing pressure establish classifying rules.The target well is divided into the first kind to the 6th class totally six kinds of classifications.
Categorization module 230, for being based on classification gauge according to the mining data of the target well and the offset well of the target well
Then classify.
Based on the mining data for the offset well for obtaining target well and the target well that module 210 obtains, established according to rule
The classifying rules that module 220 is established classifies to target well, obtains classification results.
Module 240 is chosen, for choosing the target well that can carry out refracturing according to the classification results.According to setting
Classifying rules and classification results, selection meet the target well that may be repeated pressure break.
In conclusion the quick well choosing method of coal bed gas well refracturing that the present invention provides a kind of based on mining data and
Device.The method includes：Obtain the mining data of the offset well of target well and the target well；According to preset classifying rules according to
Classify according to the mining data of the target well and the offset well of the target well to the target well；According to the classification results
Choose the target well that can carry out refracturing.Based on target well and its offset well etc. mining data easy to collect, by more
The mining data of well are analyzed to classify to target well, and target well is rationally and effectively divided into multiple classifications, can
There is detailed division to each index of target well, overcomes existing coal bed gas well refracturing well selecting principle and established mostly in list
This defect on well analysis foundation, required basic data is few, and required basic data, classification facilitate fast live easily collecting together
Victory can assist the selection for fast implementing the target well that may be repeated pressure break.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement
It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, RandomAccessMemory), magnetic or disk.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of quick well choosing method of coal bed gas well refracturing based on mining data, which is characterized in that the method includes：
Obtain the mining data of the offset well of target well and the target well；
According to preset classifying rules according to the mining data of the target well and the offset well of the target well to the target well
Classify；
The target well that can carry out refracturing is chosen according to the result of the classification.
2. the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 1, which is characterized in that
The mining data include the water yield per day and daily output tolerance during the entire mining of the offset well of target well and the target well.
3. the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 1, which is characterized in that
The target well is carried out according to the mining data of the target well and the offset well of the target well according to preset classifying rules
The step of classification includes：
If the current daily output tolerance of the target well is greater than the first preset value, the target well is divided into first kind target well.
4. the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 1, which is characterized in that
The target well is carried out according to the mining data of the target well and the offset well of the target well according to preset classifying rules
The step of classification further includes：
When the current daily output tolerance of the target well is less than the first preset value and historical high daily output tolerance is greater than the first preset value
When：If the current daily output tolerance of the offset well of the target well is divided into the 4th classification less than the first preset value, by the target well
Mark well；
When the current daily output tolerance of the target well is less than the first preset value and historical high daily output tolerance is greater than the first preset value
When：If the current daily output tolerance of the offset well of the target well is greater than the first preset value, and the current water yield per day of the target well
Greater than the second preset value, the target well is divided into the second class target well；
When the current daily output tolerance of the target well is less than the first preset value and historical high daily output tolerance is greater than the first preset value
When：If the current daily output tolerance of the offset well of the target well is greater than the first preset value, and the current water yield per day of the target well
Less than the second preset value, the target well is divided into tertiary target well.
5. the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 1, which is characterized in that
The target well is carried out according to the mining data of the target well and the offset well of the target well according to preset classifying rules
The step of classification further includes：
When the current daily output tolerance of the target well and target well historical high daily output tolerance are respectively less than the first preset value,
If the current daily output tolerance of the offset well of the target well is greater than the first preset value, the target well is divided into the 5th class target
Well.
6. the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 1, which is characterized in that
The target well is carried out according to the mining data of the target well and the offset well of the target well according to preset classifying rules
The step of classification further includes：
When the current daily output tolerance of the target well and target well historical high daily output tolerance are respectively less than the first preset value,
If the current daily output tolerance of the offset well of the target well is divided into the 6th class target less than the first preset value, by the target well
Well.
7. the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 1, which is characterized in that
The offset well of the target well include with the target well on multiple preset directions the smallest well of distance.
8. the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 3~6 any one,
It is characterized in that, first preset value is 500m3。
9. a kind of quick well selecting device of coal bed gas well refracturing based on mining data, which is characterized in that described device is used for
Execute the quick well choosing method of coal bed gas well refracturing based on mining data as described in claim 1~8 any one, institute
Stating device includes：
Obtain module, the mining data of the offset well for obtaining target well and the target well；
Rule establishes module, for establishing classifying rules；
Categorization module is divided for being based on classifying rules according to the mining data of the target well and the offset well of the target well
Class；
Module is chosen, for choosing the target well that can carry out refracturing according to the result of the classification.
10. the quick well selecting device of coal bed gas well refracturing based on mining data, feature exist as claimed in claim 9
In the mining data include the water yield per day and daily gas during the entire mining of the offset well of target well and the target well
Amount.
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