CN109829585A - A kind of shale gas economic resources amount prediction technique and system - Google Patents
A kind of shale gas economic resources amount prediction technique and system Download PDFInfo
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Abstract
The present invention discloses a kind of shale gas economic resources amount prediction technique, comprising: the incipient stability for obtaining shale gas individual well tests the daily output；Determine shale gas individual well cumulative production；Shale gas individual well accumulation income from sales function and shale gas individual well accumulation input cost function are determined according to shale gas individual well cumulative production；Income from sales function is accumulated according to shale gas individual well and shale gas individual well accumulation input cost function determines individual well limit economic life time and individual well period of cost recovery；Individual well limit economic resources amount is determined according to individual well limit economic life time；Obtain the area of shale gas resource effective district；Determine shale gas resources area area；Effectively deployment drilling hole number is determined according to well spacing density and Yan Qi resources area's area；Target area shale gas limit economic resources amount is determined according to effective deployment drilling hole number and the individual well limit economic resources amount.This method in the present invention can be improved the precision of prediction of Target area shale gas limit economic resources amount.
Description
Technical field
The present invention relates to resources fields, more particularly to a kind of shale gas economic resources amount prediction technique and system.
Background technique
The stock number predicted in previous shale gas resource prediction method is usually geological resources and technology mining resources
Amount, the result for only accounting for geologic(al) factor and engineering technology factor, therefore obtaining only respectively represent the money buried now in underground
How many amount (geological resources) of source can exploit how many amount (technology mining resources under existing engineering technology level conditions
Amount), eco environment facto and economic factor are not considered, i.e., to the protection of ecological environment, drilling well items cost and shale gas price
Influence to stock number.But as China's energy resource structure gradually changes, and ecological environmental protection is vigorously advocated, provided in shale gas
Eco environment facto and economic factor should be fully considered in the prediction of source, i.e., on the one hand due to ecological preservation area, extensive vegetation
Forbid carrying out development of resources in the regions such as the area of coverage and water head site, therefore the partial region should be wrapped in Resources Prediction
The stock number contained is subtracted out, on the other hand since current international shale gas price fluctuation is larger, to China's energy market cause compared with
It is big to influence, when shale gas price reduction to a certain extent, if continuing shale gas exploration, necessarily will cause enterprise operation and lose
Damage, state revenue are reduced.Therefore it needs to consider in the case where not losing, predict corresponding under different shale gas price terms
How many stock number determines key price node, breaks the concept that previous prognostic resources are a fixed value, by stock number and page
Rock gas price lattice are associated, and form shale gas stock number dynamic prediction, so that according to price fluctuation, feelings are not being lost in prediction in real time
Maximum can exploit shale gas stock number in Target area under condition, i.e., the shale gas limit economic resources amount mentioned in method introduction.
Summary of the invention
The object of the present invention is to provide a kind of shale gas economic resources amount prediction technique and systems, improve Target area shale gas
The precision of prediction of limit economic resources amount, and changed according to shale gas price fluctuation, realize shale gas stock number dynamic prediction.
To achieve the above object, the present invention provides following schemes:
A kind of shale gas economic resources amount prediction technique, which comprises
The incipient stability for obtaining shale gas individual well tests the daily output；
The daily output, which is tested, according to the incipient stability determines shale gas individual well cumulative production；
Shale gas individual well accumulation income from sales function and shale gas individual well are determined according to the shale gas individual well cumulative production
Accumulate input cost function；
Income from sales function is accumulated according to the shale gas individual well and shale gas individual well accumulation input cost function determines list
Well limit economic life time and individual well period of cost recovery；
Individual well limit economic resources amount is determined according to the individual well limit economic life time；
Obtain the area of shale gas resource effective district；
Shale gas resources area area is determined according to the area of the effective district；
Obtain shale gas operation area well spacing density；
Effectively deployment drilling hole number is determined according to the well spacing density and Yan Qi resources area's area；
The Target area shale gas limit is determined according to effective deployment drilling hole number and the individual well limit economic resources amount
Economic resources amount.
Optionally, it is described according to the incipient stability test the daily output determine shale gas individual well cumulative production specifically use with
Lower formula:
Wherein, Q is shale gas individual well cumulative production, qiFor incipient stability test
The daily output, DiFor lapse rate, n is decline exponent, and t is the production time.
Optionally, it is described according to the shale gas individual well cumulative production determine shale gas individual well accumulation income from sales function and
Shale gas individual well accumulation input cost function specifically uses following formula:
Wherein, M indicates that shale gas individual well accumulates income from sales, and f indicates shale gas quotient
Product rate, t indicate production time, t2Indicate shale gas end-of-development time point, Pb(t) financial subsidies, P are indicateds(t) shale is indicated
Gas price lattice；
Wherein, N indicates that the accumulation of shale gas individual well is thrown
Enter cost, CetIndicate exploration cost, CdtIndicate development cost, CjtIndicate operating cost, TtIndicate the expenses of taxation, CrtIndicate that ecology is repaired
Multiple cost, t1Indicate shale gas exploration end time point, t2Indicate shale gas end-of-development time point, t+1 indicates restoration of the ecosystem knot
Beam time point.
Optionally, described that income from sales function and shale gas individual well accumulation input cost are accumulated according to the shale gas individual well
Function determines that individual well limit economic life time and individual well period of cost recovery specifically include:
The shale gas individual well is accumulated into income from sales function and shale gas individual well accumulation input cost function is put into
The same coordinate system determines shale gas individual well accumulation income from sales function curve and shale gas individual well accumulation input cost function curve
Intersection point；
Individual well limit economic life time and individual well period of cost recovery are determined according to the intersection point.
Optionally, the area for obtaining shale gas resource effective district specifically includes:
The mud shale depth isoline graph, organic carbon content isogram, thermal evolutionary maturity for obtaining prediction object are equivalent
Line chart and buried depth isogram；
The mud shale depth isoline graph, the organic carbon content isogram, the thermal evolutionary maturity is equivalent
Line chart and the buried depth isogram are overlapped, and overlay region is obtained, and the overlay region is shale gas resource effective district
Area.
Optionally, the area according to the effective district determines that shale gas resources area area specifically includes:
Obtain the remote sensing image in the evaluation area of shale gas resource effective district；
It sketches to the remote sensing image, obtains the remote sensing image of ecological preservation area and complicated landform morphologic region；
The remote sensing image of the ecological preservation area and complicated landform morphologic region is deducted, residual area is shale gas money
Source Target area area.
Optionally, described that effectively deployment drilling well number is determined according to the well spacing density and Yan Qi resources area's area
Measurer body uses following formula:
λ=S ρ, wherein λ is that effectively deployment drilling hole number, S indicate that Yan Qi resources area area, ρ indicate well spacing density.
Optionally, described that Target area is determined according to effective deployment drilling hole number and the individual well limit economic resources amount
Rock air exhaustion limits economic resources measurer body and uses following formula:
Qp=λ Qs, wherein QpIndicate that Target area rock air exhaustion limits economic resources amount, λ is effectively to dispose drilling hole number, QsIt indicates
Individual well limit economic resources amount.
The present invention still further provides a kind of shale gas economic resources amount forecasting system, the system comprises:
Incipient stability tests the daily output and obtains module, and the incipient stability for obtaining shale gas individual well tests the daily output；
Shale gas individual well cumulative production determining module determines shale gas list for testing the daily output according to the incipient stability
Well cumulative production；
Individual well accumulates income from sales and individual well accumulates input cost determining module, for being accumulated according to the shale gas individual well
Yield determines shale gas individual well accumulation income from sales function and shale gas individual well accumulation input cost function；
Individual well limit economic life time and individual well period of cost recovery determining module, for being accumulated according to the shale gas individual well
Income from sales function and shale gas individual well accumulation input cost function determine individual well limit economic life time and individual well cost recovery
Phase；
Individual well limit economic resources amount determining module, for determining the individual well limit according to the individual well limit economic life time
Economic resources amount；
The area of effective district obtains module, for obtaining the area of shale gas resource effective district；
Resources area area determining module, for determining shale gas resources area face according to the area of the effective district
Product；
Well spacing density obtains module, for obtaining shale gas operation area well spacing density；
Effectively deployment drilling hole number determining module, for according to the well spacing density and Yan Qi resources area area
Determine effectively deployment drilling hole number；
Shale gas limit economic resources amount determining module is passed through according to effective deployment drilling hole number and the individual well limit
Ji stock number determines Target area shale gas limit economic resources amount.
The specific embodiment provided according to the present invention, the invention discloses following technical effects:
This method in the present invention predicts the accumulative pin of the individual well that each time point is calculated under different shale gas price terms
Sell income and cumulative investment cost, then successively calculate individual well limit economic life time under different shale gas price terms,
Individual well period of cost recovery, individual well limit economic resources amount and Target area shale gas limit economic resources amount form shale gas resource
Dynamic prediction is measured, therefore the obtained shale gas stock number of prediction is rather than the fixed value with price change, to improve pre-
The actual effect for surveying result, considers multiple new elements of ecological environment and economic aspect, to improve prediction in prediction
As a result accuracy also adds the individual well limit in addition to original Target area shale gas limit economic resources amount in prediction result
Economic life time, individual well period of cost recovery and individual well limit economic resources amount, to improve the diversity of prediction result.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is shale gas of embodiment of the present invention economic resources amount prediction technique flow chart；
Fig. 2 is shale gas of embodiment of the present invention economic resources amount forecasting system structural schematic diagram；
Fig. 3 is that shale gas of embodiment of the present invention individual well income from sales function curve and shale gas individual well accumulate input cost letter
Number curve figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of shale gas economic resources amount prediction technique and systems, improve Target area shale gas
The precision of prediction of limit economic resources amount.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is shale gas of embodiment of the present invention economic resources amount prediction technique flow chart, as shown in Figure 1, the method packet
It includes:
Step 101: the incipient stability for obtaining shale gas individual well tests the daily output；
Step 102: the daily output being tested according to the incipient stability and determines shale gas individual well cumulative production；
Step 103: shale gas individual well accumulation income from sales function and page are determined according to the shale gas individual well cumulative production
Rock gas individual well accumulates input cost function；
Step 104: income from sales function being accumulated according to the shale gas individual well and shale gas individual well accumulates input cost letter
Number determines individual well limit economic life time and individual well period of cost recovery；
Step 105: individual well limit economic resources amount is determined according to the individual well limit economic life time；
Step 106: obtaining the area of shale gas resource effective district；
Step 107: shale gas resources area area is determined according to the area of the effective district；
Step 108: obtaining shale gas operation area well spacing density；
Step 109: effectively deployment drilling hole number is determined according to the well spacing density and Yan Qi resources area's area；
Step 110: Target area page is determined according to effective deployment drilling hole number and the individual well limit economic resources amount
Rock air exhaustion limits economic resources amount.
Specifically, the gas testing data obtained using drilling well staged fracturing, i.e. incipient stability test the daily output in step 101.
It is described to determine that shale gas individual well cumulative production is specifically adopted according to the incipient stability test daily output in step 102
With following formula:
Wherein, Q is shale gas individual well cumulative production, qiFor incipient stability test
The daily output, DiFor lapse rate, n is decline exponent, and t is the production time.
Each known quantity is substituted into formula by computer, fits shale gas individual well cumulative production curve, which is
The curve that one shale gas individual well cumulative production changes with the shale gas production time, therefore, shale gas individual well cumulative production Q are one
The continuous variable changed over time obtains the corresponding shale of each shale gas production time point t in production process by the curve
Gas individual well cumulative production.
In step 103, the known shale gas market price, financial subsidies, shale gas commodity rate and shale gas list are utilized
Well cumulative production come determine shale gas individual well accumulation income from sales function and shale gas individual well accumulation input cost function:
Wherein, M indicates that shale gas individual well accumulates income from sales, and f indicates shale gas quotient
Product rate, t indicate production time, t2Indicate shale gas end-of-development time point, Pb(t) financial subsidies, P are indicateds(t) shale is indicated
Gas price lattice；
Wherein, N indicates that the accumulation of shale gas individual well is thrown
Enter cost, CetIndicate exploration cost, CdtIndicate development cost, CjtIndicate operating cost, TtIndicate the expenses of taxation, CrtIndicate that ecology is repaired
Multiple cost, t1Indicate shale gas exploration end time point, t2Indicate shale gas end-of-development time point, t+1 indicates restoration of the ecosystem knot
Beam time point.
It is described that income from sales function and shale gas individual well accumulation investment are accumulated according to the shale gas individual well in step 104
Cost function determines that individual well limit economic life time and individual well period of cost recovery specifically include:
Fig. 3 is that shale gas of embodiment of the present invention individual well income from sales function curve and shale gas individual well accumulate input cost letter
Number curve figure, as shown in Figure 3 by the shale gas individual well accumulate income from sales function and the shale gas individual well accumulation investment at
This function is put into the same coordinate system, determines shale gas individual well income from sales function curve and shale gas individual well accumulation input cost letter
The intersection point of number curve；Individual well limit economic life time and individual well period of cost recovery are determined according to the intersection point.
Specifically, being on computers to be accumulated the above-mentioned shale gas individual well obtained by shale gas resource assessment software
Income from sales curve and shale gas individual well accumulation two curves of input cost curve are put into the same coordinate system, two curve meetings
Intersection twice, obtains two intersection points, and corresponding t value is individual well period of cost recovery on two curves when occurring intersection point for the first time,
Corresponding t value is individual well limit economic life time on two curves when occurring intersection point for the second time.
In step 105, using obtained individual well limit economic life time, i.e., it is right on two curves when intersection point to occur for the second time
The t value answered reads out the corresponding time point in the matched curve (shale gas individual well cumulative production curve) that step 101 obtains
Shale gas individual well cumulative production, as individual well limit economic resources amount.
In step 106, the area for obtaining shale gas resource effective district is specifically included:
The mud shale depth isoline graph, organic carbon content isogram, thermal evolutionary maturity for obtaining prediction object are equivalent
Line chart and buried depth isogram；
The mud shale depth isoline graph, the organic carbon content isogram, the thermal evolutionary maturity is equivalent
Line chart and the buried depth isogram are overlapped, and overlay region is obtained, and the overlay region is shale gas resource effective district
Area.
That is, having the mud shale thickness for predicting object by computer, organic carbon content, thermal evolutionary maturity, burying
Depth, etc. the isogram of every geologic parameter overlapped, due to all existing between the isogram of every a kind of geologic parameter
Intersection, therefore the common region that every geologic parameter isogram finally overlaps out is shale gas resource effective district,
Area is effective district area
In step 107, the area according to the effective district determines that shale gas resources area area specifically includes:
Obtain the remote sensing image of shale gas resource effective district；
It sketches to the remote sensing image, obtains the remote sensing image of ecological preservation area and complicated landform morphologic region；
The remote sensing image of the ecological preservation area and complicated landform morphologic region is deducted, residual area is shale gas money
Source Target area area.
That is, carrying out geo-location by remotely-sensed data of the computer to shale gas resource effective district, make it have accurately
Geographical coordinate and image information, then to remote sensing image carry out interpretation, in image ecological preservation area and complicated landform landforms
Area sketches, and achievees the purpose that extract ecological preservation area and complicated landform morphologic region remote sensing information, then to remote sensing image into
The ecological preservation area sketched out and complicated landform morphologic region range are deducted from effective district, obtain remaining area by row image cropping
Domain area is Target area area.
It is described to determine that effectively deployment is bored according to the well spacing density and Yan Qi resources area's area in step 109
Well quantity specifically uses following formula:
λ=S ρ, wherein λ is that effectively deployment drilling hole number, S indicate that Yan Qi resources area area, ρ indicate well spacing density.
It is described to be determined in advance according to effective deployment drilling hole number and the individual well limit economic resources amount in step 110
It surveys area's rock air exhaustion limit economic resources measurer body and uses following formula:
Qp=λ Qs, wherein QpIndicate that Target area rock air exhaustion limits economic resources amount, λ is effectively to dispose drilling hole number, QsIt indicates
Individual well limit economic resources amount.
Fig. 2 is shale gas of embodiment of the present invention economic resources amount forecasting system structural schematic diagram, as shown in Fig. 2, the system
System includes:
Incipient stability tests the daily output and obtains module 201, and the incipient stability for obtaining shale gas individual well tests the daily output；
Shale gas individual well cumulative production determining module 202 determines shale for testing the daily output according to the incipient stability
Gas individual well cumulative production；
Individual well accumulates income from sales and individual well accumulates input cost determining module 203, for according to the shale gas individual well
Cumulative production determines shale gas individual well accumulation income from sales function and shale gas individual well accumulation input cost function；
Individual well limit economic life time and individual well period of cost recovery determining module 204, for according to the shale gas individual well
Accumulation income from sales function and shale gas individual well accumulation input cost function determine individual well limit economic life time and individual well cost
Payoff period；
Individual well limit economic resources amount determining module 205, for determining individual well according to the individual well limit economic life time
Limit economic resources amount；
The area of effective district obtains module 206, for obtaining the area of shale gas resource effective district；
Resources area area determining module 207, for determining shale gas resources according to the area of the effective district
Area's area；
Well spacing density obtains module 208, for obtaining shale gas operation area well spacing density；
Effectively deployment drilling hole number determining module 209, for according to the well spacing density and Yan Qi resources area
Area determines effectively deployment drilling hole number；
Shale gas limit economic resources amount determining module 210, according to effective deployment drilling hole number and the individual well pole
Limit economic resources amount determines Target area shale gas limit economic resources amount.
This method in the present invention has the advantages that
The stock number predicted in previous shale gas Resources Prediction method is usually a fixed value, only only accounts for geology
Factor and engineering technology factor, but the influence of ecological environment, drilling well items cost and shale gas price to stock number is not considered.Cause
This this method is based on calculus principle, by being integrated to time t, according to shale gas income from sales and input cost with
The relationship of time t dynamic change, establishes formula F indicates shale gas commodity rate, and t indicates production time, t2When indicating shale gas end-of-development
Between point, Pb(t) financial subsidies are indicated, influence of the price to stock number, P are representeds(t) shale gas price is indicated, N indicates shale gas
Individual well accumulates input cost, CetIndicate exploration cost, CdtIndicate development cost, CjtIndicate operating cost, TtIndicate the expenses of taxation, generation
Influence of the table drilling well items cost to stock number, CrtIt indicates restoration of the ecosystem cost, represents influence of the ecological environment to stock number, t1
Indicate shale gas exploration time end point, t2Indicate shale gas end-of-development time point, t+1 indicates the restoration of the ecosystem end time
Point.And it is predicted under different shale gas price terms by this method, the accumulative pin of the individual well at each time point (dt in formula)
Income and individual well cumulative investment cost are sold, and then successively calculates the individual well limit economic life under different shale gas price terms
Phase, individual well limit economic resources amount, individual well period of cost recovery and Target area shale gas limit economic resources amount form shale gas money
Dynamic prediction is measured in source, therefore the obtained shale gas stock number of prediction is rather than the fixed value with price change, to improve
The actual effect of prediction result considers multiple new elements of ecological environment and economic aspect, to improve pre- in prediction
The accuracy for surveying result, also adds limit economic life time, period of cost recovery in prediction result in addition to original stock number
With individual well limit economic resources amount, to improve the diversity of prediction result.
In previous shale gas Resources Prediction method, it is mature to only account for mud shale thickness, organic carbon content, thermal evolution
The geologic(al) factors such as degree, buried depth, but increase in the present invention and consider eco environment facto and topography and geomorphology factor, therefore into
One step improves the precision of Target area area.
In previous shale gas Resources Prediction method, it is defaulted as to dispose drilling well random probability distribution in Target area, obtains
The drilling hole number arrived has uncertainty.It, actually can portion according to topography and geomorphology in Target area and ecological environment determination in the present invention
Drilling hole number is affixed one's name to, the accuracy that can dispose drilling hole number is improved.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (9)
1. a kind of shale gas economic resources amount prediction technique, which is characterized in that the described method includes:
The incipient stability for obtaining shale gas individual well tests the daily output；
The daily output, which is tested, according to the incipient stability determines shale gas individual well cumulative production；
Shale gas individual well accumulation income from sales function and the accumulation of shale gas individual well are determined according to the shale gas individual well cumulative production
Input cost function；
Income from sales function is accumulated according to the shale gas individual well and shale gas individual well accumulation input cost function determines individual well pole
Limit economic life time and individual well period of cost recovery；
Individual well limit economic resources amount is determined according to the individual well limit economic life time；
Obtain the area of shale gas resource effective district；
Shale gas resources area area is determined according to the area of the effective district；
Obtain shale gas operation area well spacing density；
Effectively deployment drilling hole number is determined according to the well spacing density and Yan Qi resources area's area；
Target area shale gas limit economy is determined according to effective deployment drilling hole number and the individual well limit economic resources amount
Stock number.
2. prediction technique according to claim 1, which is characterized in that described true according to the incipient stability test daily output
Determine shale gas individual well cumulative production and specifically use following formula:
Wherein, Q is shale gas individual well cumulative production, qiIt tests and produces daily for incipient stability
Amount, DiFor lapse rate, n is decline exponent, and t is the production time.
3. prediction technique according to claim 2, which is characterized in that described true according to the shale gas individual well cumulative production
Determine shale gas individual well accumulation income from sales function and shale gas individual well accumulation input cost function specifically use following formula:
Wherein, M indicates that shale gas individual well accumulates income from sales, and f indicates shale gas commodity rate,
T indicates production time, t2Indicate shale gas end-of-development time point, Pb(t) financial subsidies, P are indicateds(t) shale gas price is indicated
Lattice；
Wherein, N indicate shale gas individual well accumulation investment at
This, CetIndicate exploration cost, CdtIndicate development cost, CjtIndicate operating cost, TtIndicate the expenses of taxation, CrtIndicate restoration of the ecosystem at
This, t1Indicate shale gas exploration end time point, t2At the end of indicating that shale gas end-of-development time point, t+1 indicate restoration of the ecosystem
Between point.
4. prediction technique according to claim 1, which is characterized in that described to accumulate sale receipts according to the shale gas individual well
Enter function and shale gas individual well accumulation input cost function determines that individual well limit economic life time and individual well period of cost recovery are specific
Include:
Shale gas individual well accumulation income from sales function and shale gas individual well accumulation input cost function are put into same
Coordinate system determines the friendship of shale gas individual well accumulation income from sales function curve and shale gas individual well accumulation input cost function curve
Point；Individual well limit economic life time and individual well period of cost recovery are determined according to the intersection point.
5. prediction technique according to claim 1, which is characterized in that the area tool for obtaining shale gas resource effective district
Body includes:
Obtain mud shale depth isoline graph, organic carbon content isogram, the thermal evolutionary maturity isogram of prediction object
And buried depth isogram；
By the mud shale depth isoline graph, the organic carbon content isogram, the thermal evolutionary maturity isogram
And the buried depth isogram is overlapped, and overlay region is obtained, the overlay region is the face of shale gas resource effective district
Product.
6. prediction technique according to claim 1, which is characterized in that the area according to the effective district determines shale
Gas resources area area specifically includes:
Obtain the remote sensing image in the evaluation area of shale gas resource effective district；
It sketches to the remote sensing image in the evaluation area, obtains the remote sensing image of ecological preservation area and complicated landform morphologic region；
The remote sensing image of the ecological preservation area and complicated landform morphologic region is deducted, residual area is that the shale gas resource is pre-
Survey area.
7. prediction technique according to claim 1, which is characterized in that described to be provided according to the well spacing density and the rock gas
Source Target area area determines that effectively deployment drilling hole number specifically uses following formula:
λ=S ρ, wherein λ is that effectively deployment drilling hole number, S indicate that Yan Qi resources area area, ρ indicate well spacing density.
8. prediction technique according to claim 1, which is characterized in that described according to effective deployment drilling hole number and institute
Stating individual well limit economic resources amount determines Target area rock air exhaustion limit economic resources measurer body using following formula:
Qp=λ Qs, wherein QpIndicate that Target area rock air exhaustion limits economic resources amount, λ is effectively to dispose drilling hole number, QsIndicate individual well pole
Limit economic resources amount.
9. a kind of shale gas economic resources amount forecasting system, which is characterized in that the system comprises:
Incipient stability tests the daily output and obtains module, and the incipient stability for obtaining shale gas individual well tests the daily output；
Shale gas individual well cumulative production determining module determines that shale gas individual well is tired for testing the daily output according to the incipient stability
Product yield；
Individual well accumulates income from sales and individual well accumulates input cost determining module, for according to the shale gas individual well cumulative production
Determine shale gas individual well income from sales function and shale gas individual well accumulation input cost function；
Individual well limit economic life time and individual well period of cost recovery determining module are sold for being accumulated according to the shale gas individual well
Earnings function and shale gas individual well accumulation input cost function determine individual well limit economic life time and individual well period of cost recovery；
Individual well limit economic resources amount determining module, for determining individual well limit economy according to the individual well limit economic life time
Stock number；
The area of effective district obtains module, for obtaining the area of shale gas resource effective district；
Resources area area determining module, for determining shale gas resources area area according to the area of the effective district；
Well spacing density obtains module, for obtaining shale gas operation area well spacing density；
Effectively deployment drilling hole number determining module, for being determined according to the well spacing density and Yan Qi resources area's area
Effectively deployment drilling hole number；
Shale gas limit economic resources amount determining module is provided according to effective deployment drilling hole number and the individual well limit economy
Source, which is measured, determines Target area shale gas limit economic resources amount.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115061199A (en) * | 2022-06-07 | 2022-09-16 | 中国地质调查局油气资源调查中心 | Method and device for calculating loss amount and movable hydrocarbon amount of continental facies shale oil light hydrocarbon |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115061199A (en) * | 2022-06-07 | 2022-09-16 | 中国地质调查局油气资源调查中心 | Method and device for calculating loss amount and movable hydrocarbon amount of continental facies shale oil light hydrocarbon |
| CN115061199B (en) * | 2022-06-07 | 2023-03-10 | 中国地质调查局油气资源调查中心 | Method and device for calculating loss amount and movable hydrocarbon amount of continental facies shale oil light hydrocarbon |
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Application publication date: 20190531 |