CN107103377A - Petroleum zone explores methodology of economic evaluation and device - Google Patents
Petroleum zone explores methodology of economic evaluation and device Download PDFInfo
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- CN107103377A CN107103377A CN201610096860.9A CN201610096860A CN107103377A CN 107103377 A CN107103377 A CN 107103377A CN 201610096860 A CN201610096860 A CN 201610096860A CN 107103377 A CN107103377 A CN 107103377A
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
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Abstract
The present invention provides a kind of petroleum zone exploration methodology of economic evaluation and device, and wherein method includes：Into probability obtaining step is hidden, according to oil-gas reservoir sample, geological risk analysis is carried out to zone, with obtain oil-gas reservoir in zone into hiding probability；Structural-belt division step, according to oil-gas reservoir into probability is hidden, is divided to zone, favourable into Tibetan area to obtain；Prospect pit number obtaining step, to favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit number；Economic evaluation step, is evaluated zone exploration economy according to prospect pit number.This method determines drilling cost by the prospect pit number of zone, so as to evaluate zone exploration economy, and finally provides foundation for exploration deployment decision-making.
Description
Technical field
The present invention relates to petroleum exploration domain, more particularly to a kind of petroleum zone exploration methodology of economic evaluation and dress
Put.
Background technology
Petroleum zone exploration economic evaluation is to list oil company's resource assessment and the weight of exploration plan decision-making work
Link is wanted, it is significant for formulating long-term exploration plan in exploration deployment and establishment.
The characteristics of Zhang Houhe is directed to marine petroleum play, in prominent marine zone risk factors and the base of resource distribution
On plinth, the method that marine petroleum play economic evaluation is proposed with reference to offshore oil and gas field development mode, this method master
If the particularity of prominent sea petroleum play.Zone methodology of economic evaluation by representative of Zhang Houhe is main strong
Adjust and be based on continuous drilling well, evaluate whether zone needs to continue to survey according to results of drilling come timely dynamic evaluation is a certain
Visit or abandon.This method needs to comment to enter Mobile state by continuous drilling well mainly for single zone
Valency, is applicable for the economic evaluation in zone development process.And to big Gas Company or listed company, oil
What the gas exploration stage was studied simultaneously has multiple evaluation zone, and these zone are also far from entering the development phase,
These zone are needed by Fast Evaluation, the high exploration region of economic value is identified, so that efforts will be concentrated on prospecting,
Evaluation is developed again after efforts will be concentrated on prospecting find oil gas.This method is deposited in actual play assessment application
In certain difficulty, detailed geologic risk can not be carried out due to the limitation of exploration data in early stage and resource is commented
Valency, even if therefore follow-up economic evaluation again in detail, the confidence level of its result is not high.
The content of the invention
The present invention provides a kind of petroleum zone exploration methodology of economic evaluation and device, right in the prior art for solving
Big, the with a low credibility technical problem of economic evaluation error is explored in zone.
One aspect of the present invention provides a kind of petroleum zone exploration methodology of economic evaluation, including：
Into probability obtaining step is hidden, according to oil-gas reservoir sample, geological risk analysis is carried out to zone, to obtain area
Band in oil-gas reservoir into hide probability；
Structural-belt division step, according to oil-gas reservoir into probability is hidden, is divided to zone, favourable into Tibetan to obtain
Area；
Prospect pit number obtaining step, to favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit number；
Economic evaluation step, is evaluated zone exploration economy according to prospect pit number.
Further, into probability obtaining step is hidden, specifically include：
According to oil-gas reservoir sample, geological risk analysis is carried out to zone, to obtain geologic risk evaluation template, its
In, geologic risk evaluation template is：
G is the prospect pit sample totality for reservoir exploration, and u is mathematic expectaion, and S is covariance matrix, d (x, G)
For prospect pit sample x to prospect pit sample totality G mahalanobis distance；
According to geologic risk evaluation template, calculate oil-gas reservoir in zone into hiding probability, wherein, be into probability is hidden：
G in formulaHCOverall, the G for oil wellDRYOverall, the G for dry-wellHC、GDRY∈ G, GHCDensity Distribution
Function is fHC(X), GDRYDensity fonction be fDRY(X)。GHCPrior probability be qHC, GDRY
Prior probability be qDRY, qHC+qDRY=1.
Further, structural-belt division step is specifically included：
Whether judge oil-gas reservoir is more than predetermined threshold value into Tibetan probability, if being more than, the oil-gas reservoir has been divided into
Profit is into Tibetan area.
Further, before prospect pit number obtaining step, in addition to：
Probability Distribution Model obtaining step, according to the oil-gas reservoir sample of zone, the oil-gas reservoir reserves for obtaining zone are general
Rate distributed model, wherein, the oil-gas reservoir sample includes oil-gas reservoir reserves；
Oil-gas reservoir number obtaining step, the oil-gas reservoir of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Number.
Further, prospect pit number obtaining step is specifically included：
To favorably carrying out prospect pit number prediction into Tibetan area, wherein, the oil-gas reservoir number of prospect pit number=pre-set interval ×
It was found that single oil gas hides the prospect pit number/annual wildcat success rate needed, favorably it is located at pre-set interval into Tibetan area；
If favorably having multiple into Tibetan area, the prospect pit number favorably into the pre-set interval where Tibetan area is carried out respectively
Calculate, and the prospect pit number of each pre-set interval is added, to obtain total prospect pit number.
Further, after probability Distribution Model obtaining step, before economic evaluation step, in addition to：
Oil-gas reservoir reserves obtaining step, the oil-gas reservoir of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Reserves；
Economic evaluation step is specifically included：
Economic expenditure part is explored according to the prospect pit number of pre-set interval to zone to evaluate；
Economic well-being of workers and staff part is explored according to the oil-gas reservoir reserves of pre-set interval to zone to evaluate.
Another aspect of the present invention provides a kind of petroleum zone exploration economic evaluation device, including：
Into probability acquisition module is hidden, for according to oil-gas reservoir sample, geological risk analysis being carried out to zone, to obtain
In zone oil-gas reservoir into hiding probability；
Structural-belt division module is favourable to obtain for, into probability is hidden, being divided according to oil-gas reservoir to zone
Into Tibetan area；
Prospect pit number acquisition module, for favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit number；
Economic evaluation module, for being evaluated according to prospect pit number zone exploration economy.
Further, into probability acquisition module is hidden, specifically include：
Geologic risk evaluation template acquisition submodule, for according to oil-gas reservoir sample, geologic risk to be carried out to zone
Analysis, to obtain geologic risk evaluation template, wherein, geologic risk evaluation template is：
G is the prospect pit sample totality for reservoir exploration, and u is mathematic expectaion, and S is covariance matrix, d (x, G)
For prospect pit sample x to prospect pit sample totality G mahalanobis distance；
Into hiding probability acquisition submodule, for according to geologic risk evaluation template, calculate oil-gas reservoir in zone into
Probability is hidden, wherein, it is into probability is hidden：
G in formulaHCOverall, the G for oil wellDRYOverall, the G for dry-wellHC、GDRY∈ G, GHCDensity Distribution
Function is fHC(X), GDRYDensity fonction be fDRY(X)。GHCPrior probability be qHC, GDRY
Prior probability be qDRY, qHC+qDRY=1.
Further, in addition to：
Probability Distribution Model acquisition module, for the oil-gas reservoir sample according to zone, obtains the oil-gas reservoir storage of zone
Probability Distribution Model is measured, wherein, the oil-gas reservoir sample includes oil-gas reservoir reserves；
Oil-gas reservoir number acquisition module, the oil for obtaining pre-set interval according to oil-gas reservoir reserves probability Distribution Model
Gas reservoir number.
Further, prospect pit number acquisition module, specifically for：
To favorably carrying out prospect pit number prediction into Tibetan area, wherein, the oil-gas reservoir number of prospect pit number=pre-set interval ×
It was found that single oil gas hides the prospect pit number/annual wildcat success rate needed, favorably it is located at into Tibetan area in pre-set interval；
If favorably having multiple into Tibetan area, the prospect pit number favorably into the pre-set interval where Tibetan area is carried out respectively
Calculate, and the prospect pit number of each pre-set interval is added, to obtain total prospect pit number；
Described device also includes：
Oil-gas reservoir reserves acquisition module, the oil-gas reservoir of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Reserves；
Economic evaluation module specifically for：
Economic expenditure part is explored according to the prospect pit number of pre-set interval to zone to evaluate；
Economic well-being of workers and staff part is explored according to the oil-gas reservoir reserves of pre-set interval to zone to evaluate
Petroleum zone that the present invention is provided exploration methodology of economic evaluation and device, by oil-gas reservoir into hiding probability pair
Zone is divided, favourable into Tibetan area to obtain, then to favorably carrying out prospect pit number prediction into Tibetan area, to obtain
Prospect pit number, is evaluated zone exploration economy finally according to prospect pit number.The prospect pit that this method passes through zone
Number determines drilling cost, so as to evaluate zone exploration economy, and is finally that exploration deployment decision-making is carried
For foundation.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 is the schematic flow sheet that methodology of economic evaluation is explored according to the petroleum zone of the embodiment of the present invention one；
Fig. 2 is the schematic flow sheet that methodology of economic evaluation is explored according to the petroleum zone of the embodiment of the present invention two；
Fig. 3 is the structural representation that economic evaluation device is explored according to the petroleum zone of the embodiment of the present invention three；
Fig. 4 is the structural representation that economic evaluation device is explored according to the petroleum zone of the embodiment of the present invention four.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to actual ratio.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment one
Fig. 1 is the schematic flow sheet that methodology of economic evaluation is explored according to the petroleum zone of the embodiment of the present invention one；Such as
Shown in Fig. 1, the present embodiment provides a kind of petroleum zone exploration methodology of economic evaluation, including：
Into probability obtaining step 101 is hidden, according to oil-gas reservoir sample, geological risk analysis is carried out to zone, to obtain
In zone oil-gas reservoir into hiding probability.
Specifically, zone is between basin and trap, refer in the same structural belt in basin, with it is identical into
Because contact and Accumulation of Hydrocarbon, fortune, poly- rule and adjacent series of traps in Regional Distribution are with having found oil-gas reservoir
The unified combination in (field).The oil-gas reservoir sample being had found based on zone, carries out geological risk analysis, such as to zone
The oil-gas reservoir statistical form in different oil ＆ gas pool size (reserves) intervals of certain zone described in table 1.
Table 1
Because the oil-gas reservoir that prediction is obtained not is completely accurate, some oil-gas reservoir being predicted, which turns into, to be available for surveying
The probability of the oil-gas reservoir of spy, is into Tibetan probability.
Structural-belt division step 102, according to oil-gas reservoir into probability is hidden, is divided to zone, favourable to obtain
Into Tibetan area.
Specifically, being divided to zone.Generally, into Tibetan probability>First threshold is that a class is favourable into Tibetan area,
Exploration targets in the area is high into probability is hidden, and risk is small；Second Threshold<Into Tibetan probability<First threshold is that two classes have
Profit is into Tibetan area, and probability is higher into hiding for the exploration targets in the area, and risk is moderate；3rd threshold value<Into Tibetan probability<The
Two threshold values be three classes into Tibetan area, the exploration targets in the area has larger analysis, it should postpone construction；Into Tibetan
Probability<3rd threshold value is four classes into Tibetan area, i.e. high risk area.One class can merger into Tibetan area into Tibetan area and two classes
To favorably into Tibetan area.First threshold, Second Threshold and the 3rd threshold value can carry out value, one according to actual conditions
As, first threshold desirable 0.5, Second Threshold desirable 0.25, the 3rd threshold value desirable 0.125.
Prospect pit number obtaining step 103, to favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit number.
Economic evaluation step 104, is evaluated zone exploration economy according to prospect pit number.
Evaluated specifically, exploring economic expenditure part to zone according to the prospect pit number of pre-set interval.3
The petroleum zone exploration methodology of economic evaluation that the present invention is provided, is entered by oil-gas reservoir into probability is hidden to zone
Row is divided, favourable into Tibetan area to obtain, then to favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit
Number, is evaluated zone exploration economy finally according to prospect pit number.Determine to bore by the prospect pit number of zone
Cost is visited, so as to evaluate zone exploration economy, and finally foundation is provided for exploration deployment decision-making.
Embodiment two
The present embodiment is the supplementary notes carried out on the basis of above-described embodiment.
Fig. 2 is the schematic flow sheet that methodology of economic evaluation is explored according to the petroleum zone of the embodiment of the present invention two；Such as
Shown in Fig. 2, the present embodiment provides a kind of petroleum zone exploration methodology of economic evaluation, including：
Into probability obtaining step 101 is hidden, according to oil-gas reservoir sample, geological risk analysis is carried out to zone, to obtain
In zone oil-gas reservoir into hiding probability.
Further, step 101 is specifically included：
Step 1011, according to oil-gas reservoir sample, geological risk analysis is carried out to zone, commented with obtaining geologic risk
Valency template, wherein, geologic risk evaluation template is：
G is the prospect pit sample totality for reservoir exploration, and u is mathematic expectaion, and S is covariance matrix,
D (x, G) is oil-gas reservoir sample x to oil-gas reservoir sample totality G mahalanobis distance.
Specifically, the prospect pit sample of acquisition is totally classified, prospect pit sample is totally divided into the present embodiment
Two classes, i.e. " oil well " and " dry-well ".According to formation testing result, oil well includes high yield commercial hydrocarbon flow well, work
Industry gas stream well and low yield commercial hydrocarbon flow well；Dry-well includes all non-commercial hydrocarbon flow wells.By Data Collection,
Analysis, sets up oil well overall overall with dry-well.
For two divided class prospect pit samples, it is necessary to which further quantitative analysis can be " dry for effective district point
The factor of well " and " oil well ".In general, only some is suitable for discriminant analysis in these oil accumulation factors,
Only some oil accumulation factor is effective in other words.Therefore, sample point x to be sentenced ownership can be according to itself and oil
Well is overall, the relation of overall two totality of dry-well is obtained.When having multiple overall, arrived by comparative sample feature
The mahalanobis distance of all general characteristics, finds out the corresponding totality of minimum range, and it is exactly sample class that this is overall.Base
In mahalanobis distance, it is effective that can effectively distinguish the accumulating condition of oil well and dry-well, select 3 it is effective into
Tibetan condition can just set up geologic risk evaluation template.
Step 1012, according to geologic risk evaluation template, calculate zone in oil-gas reservoir into hide probability, wherein,
It is into probability is hidden：
G in formulaHCOverall, the G for oil wellDRYOverall, the G for dry-wellHC、GDRY∈ G, GHCDensity Distribution
Function is fHC(X), GDRYDensity fonction be fDRY(X)。GHCPrior probability be qHC, GDRY
Prior probability be qDRY, qHC+qDRY=1.
Structural-belt division step 102, according to oil-gas reservoir into probability is hidden, is divided to zone, favourable to obtain
Into Tibetan area.
Further, step 102 is specifically included：
Step 1021, whether judge oil-gas reservoir is more than predetermined threshold value into Tibetan probability, if being more than, goes to step 1022.
Specifically, predetermined threshold value can be configured according to actual conditions, it is not limited herein.
Step 1022, the oil-gas reservoir is divided into favourable into Tibetan area.
Further, methods described also includes probability Distribution Model obtaining step a, according to the oil-gas reservoir sample of zone
This, obtains the oil-gas reservoir reserves probability Distribution Model of zone, wherein, the oil-gas reservoir sample is stored up including oil-gas reservoir
Amount.
Specifically, the zone based on division, the oil being had found in the zone is counted according to the merger principle of oil-gas reservoir
Gas reservoir and the reserves of each oil-gas reservoir, ultimately form the data statistic of oil-gas reservoir, referring to table 2.
Table 2
Oil-gas reservoir number obtaining step b, the oil gas of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Hide number.
Specifically, the oil-gas reservoir sample being had found based on zone, using a variety of methods such as Probit plates, card side
Inspection can determine the oil-gas reservoir reserves probability Distribution Model of zone, and geology handkerchief Lay is generally selected in practical study
Support and two kinds of models of logarithm normal distribution.Probability Distribution Model based on selection, with reference to having found oil-gas reservoir sample
Carry out the oil-gas reservoir reserves probability Distribution Model structural research of zone, it predicts the outcome as the interval oil of different scales
Gas reservoir number and stock number, this predicts the outcome subsequently to prepare as economic evaluation.
Step a and step b can before step 101 and step 102, between or afterwards.
Prospect pit number obtaining step 103, to favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit number.
Further, step 103 is specifically included：
To favorably carrying out prospect pit number prediction into Tibetan area, wherein, the oil-gas reservoir number of prospect pit number=pre-set interval ×
It was found that single oil gas hides the prospect pit number/annual wildcat success rate needed, favorably it is located at pre-set interval into Tibetan area；
If favorably having multiple into Tibetan area, the prospect pit number favorably into the pre-set interval where Tibetan area is carried out respectively
Calculate, and the prospect pit number of each pre-set interval is added, to obtain total prospect pit number.
Specifically, pre-set interval is the interval divided in zone according to oil ＆ gas pool size, the model of pre-set interval
Enclosing flexibly to be set, and do not limit herein, when calculate obtain it is favourable into Tibetan area after, to favorably into where Tibetan area
Pre-set interval carries out prospect pit number calculating；When favorably having multiple into Tibetan area, then calculate all favourable into Tibetan area institute
Pre-set interval prospect pit number sum.It was found that single oil gas hides the prospect pit number needed and annual wildcat success rate can root
Obtained according to empirical value.
Further, after probability Distribution Model obtaining step a, before economic evaluation step 104, also wrap
Include：
Oil-gas reservoir reserves obtaining step c, the oil gas of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Hide reserves；
Economic evaluation step 104 is specifically included：
Economic expenditure part is explored according to the prospect pit number of pre-set interval to zone to evaluate；
Economic well-being of workers and staff part is explored according to the oil-gas reservoir reserves of pre-set interval to zone to evaluate.
Evaluated specifically, exploring economic expenditure part to zone by the prospect pit number according to pre-set interval,
Economic well-being of workers and staff part is explored according to the oil-gas reservoir reserves of pre-set interval to zone to evaluate, so as to explore zone
Economy is evaluated, and the expenditure part of each pre-set interval is added with income section, you can obtain whole zone
Economic benefit, provide scientific basis for final exploration deployment decision-making.
Embodiment three
The present embodiment is device embodiment, for performing the method in above-described embodiment one.
Fig. 3 is the structural representation that economic evaluation device is explored according to the petroleum zone of the embodiment of the present invention three；Such as
Shown in Fig. 3, the present embodiment provides a kind of petroleum zone exploration economic evaluation device, including：Obtained into probability is hidden
Module 201, structural-belt division module 202, prospect pit number acquisition module 203 and economic evaluation module 204.
Wherein, into probability acquisition module 201 is hidden, for according to oil-gas reservoir sample, geologic risk to be carried out to zone
Analysis, with obtain oil-gas reservoir in zone into hiding probability.
Structural-belt division module 202, for, into probability is hidden, being divided according to oil-gas reservoir to zone, to obtain
Favorably into Tibetan area.
Prospect pit number acquisition module 203, for favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit
Number.
Economic evaluation module 204, for being evaluated according to prospect pit number zone exploration economy.
The present embodiment be with the corresponding device embodiment of embodiment of the method one, for details, reference can be made to retouching in embodiment one
State, will not be repeated here.
Example IV
The present embodiment is the supplementary notes carried out on the basis of embodiment three, for performing in above-described embodiment two
Method.
Fig. 4 is the structural representation that economic evaluation device is explored according to the petroleum zone of the embodiment of the present invention four；Such as
Shown in Fig. 4, the present embodiment provides a kind of petroleum zone exploration economic evaluation device, including：Probability Distribution Model
Acquisition module 205, oil-gas reservoir number acquisition module 206, oil-gas reservoir reserves acquisition module 207, into hide probability obtain
Modulus block 201, structural-belt division module 202, prospect pit number acquisition module 203 and economic evaluation module 204.
Wherein, into probability acquisition module 201 is hidden, geologic risk evaluation template acquisition submodule 2011 is specifically included
With into hide probability acquisition submodule 2012.
Geologic risk evaluation template acquisition submodule 2011, for according to oil-gas reservoir sample, geology to be carried out to zone
Risk analysis, to obtain geologic risk evaluation template, wherein, geologic risk evaluation template is：
G is the prospect pit sample totality for reservoir exploration, and u is mathematic expectaion, and S is covariance matrix, d (x, G)
For prospect pit sample x to prospect pit sample totality G mahalanobis distance；
Into probability acquisition submodule 2012 is hidden, for according to geologic risk evaluation template, calculating oil-gas reservoir in zone
Into hide probability, wherein, into hide probability be：
G in formulaHCOverall, the G for oil wellDRYOverall, the G for dry-wellHC、GDRY∈ G, GHCDensity Distribution
Function is fHC(X), GDRYDensity fonction be fDRY(X)。GHCPrior probability be qHC, GDRY
Prior probability be qDRY, qHC+qDRY=1.
Probability Distribution Model acquisition module 205, for the oil-gas reservoir sample according to zone, obtains the oil gas of zone
Reserves probability Distribution Model is hidden, wherein, the oil-gas reservoir sample includes oil-gas reservoir reserves；
Oil-gas reservoir number acquisition module 206, for obtaining pre-set interval according to oil-gas reservoir reserves probability Distribution Model
Oil-gas reservoir number.
Oil-gas reservoir reserves acquisition module 207, the oil of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Gas pool reserve；
Prospect pit number acquisition module 203 specifically for：
To favorably carrying out prospect pit number prediction into Tibetan area, wherein, the oil-gas reservoir number of prospect pit number=pre-set interval ×
It was found that single oil gas hides the prospect pit number/annual wildcat success rate needed, favorably it is located at into Tibetan area in pre-set interval；
If favorably having multiple into Tibetan area, the prospect pit number favorably into the pre-set interval where Tibetan area is carried out respectively
Calculate, and the prospect pit number of each pre-set interval is added, to obtain total prospect pit number；
Economic evaluation module 204 specifically for：
Economic expenditure part is explored according to the prospect pit number of pre-set interval to zone to evaluate；
Economic well-being of workers and staff part is explored according to the oil-gas reservoir reserves of pre-set interval to zone to evaluate.
The present embodiment be with the corresponding device embodiment of embodiment of the method two, for details, reference can be made to retouching in embodiment two
State, will not be repeated here.
Although by reference to preferred embodiment, invention has been described, is not departing from the scope of the present invention
In the case of, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, only
Otherwise there is structural hazard, the every technical characteristic being previously mentioned in each embodiment can have been combined in any way
Come.The invention is not limited in specific embodiment disclosed herein, but including falling within the scope of the appended claims
All technical schemes.
Claims (10)
1. a kind of petroleum zone explores methodology of economic evaluation, it is characterised in that including：
Into probability obtaining step is hidden, according to oil-gas reservoir sample, geological risk analysis is carried out to zone, to obtain area
Band in oil-gas reservoir into hide probability；
Structural-belt division step, according to oil-gas reservoir into probability is hidden, is divided to zone, favourable into Tibetan to obtain
Area；
Prospect pit number obtaining step, to favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit number；
Economic evaluation step, is evaluated zone exploration economy according to prospect pit number.
2. petroleum zone according to claim 1 explores methodology of economic evaluation, it is characterised in that into Tibetan
Probability obtaining step, is specifically included：
According to oil-gas reservoir sample, geological risk analysis is carried out to zone, to obtain geologic risk evaluation template, its
In, geologic risk evaluation template is：
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G is the prospect pit sample totality for reservoir exploration, and u is mathematic expectaion, and S is covariance matrix, d (x, G)
For prospect pit sample x to prospect pit sample totality G mahalanobis distance；
According to geologic risk evaluation template, calculate oil-gas reservoir in zone into hiding probability, wherein, be into probability is hidden：
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G in formulaHCOverall, the G for oil wellDRYOverall, the G for dry-wellHC、GDRY∈ G, GHCDensity Distribution
Function is fHC(X), GDRYDensity fonction be fDRY(X)。GHCPrior probability be qHC, GDRY
Prior probability be qDRY, qHC+qDRY=1.
3. petroleum zone according to claim 1 explores methodology of economic evaluation, it is characterised in that zone
Partiting step is specifically included：
Whether judge oil-gas reservoir is more than predetermined threshold value into Tibetan probability, if being more than, the oil-gas reservoir has been divided into
Profit is into Tibetan area.
4. petroleum zone according to claim 1 explores methodology of economic evaluation, it is characterised in that visiting
Before well number obtaining step, in addition to：
Probability Distribution Model obtaining step, according to the oil-gas reservoir sample of zone, the oil-gas reservoir reserves for obtaining zone are general
Rate distributed model, wherein, the oil-gas reservoir sample includes oil-gas reservoir reserves；
Oil-gas reservoir number obtaining step, the oil-gas reservoir of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Number.
5. petroleum zone according to claim 4 explores methodology of economic evaluation, it is characterised in that prospect pit
Number obtaining step is specifically included：
To favorably carrying out prospect pit number prediction into Tibetan area, wherein, the oil-gas reservoir number of prospect pit number=pre-set interval ×
It was found that single oil gas hides the prospect pit number/annual wildcat success rate needed, favorably it is located at pre-set interval into Tibetan area；
If favorably having multiple into Tibetan area, the prospect pit number favorably into the pre-set interval where Tibetan area is carried out respectively
Calculate, and the prospect pit number of each pre-set interval is added, to obtain total prospect pit number.
6. petroleum zone according to claim 5 explores methodology of economic evaluation, it is characterised in that general
After rate distributed model obtaining step, before economic evaluation step, in addition to：
Oil-gas reservoir reserves obtaining step, the oil-gas reservoir of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Reserves；
Economic evaluation step is specifically included：
Economic expenditure part is explored according to the prospect pit number of pre-set interval to zone to evaluate；
Economic well-being of workers and staff part is explored according to the oil-gas reservoir reserves of pre-set interval to zone to evaluate.
7. a kind of petroleum zone explores economic evaluation device, it is characterised in that including：
Into probability acquisition module is hidden, for according to oil-gas reservoir sample, geological risk analysis being carried out to zone, to obtain
In zone oil-gas reservoir into hiding probability；
Structural-belt division module is favourable to obtain for, into probability is hidden, being divided according to oil-gas reservoir to zone
Into Tibetan area；
Prospect pit number acquisition module, for favorably carrying out prospect pit number prediction into Tibetan area, to obtain prospect pit number；
Economic evaluation module, for being evaluated according to prospect pit number zone exploration economy.
8. petroleum zone according to claim 7 explores economic evaluation device, it is characterised in that into Tibetan
Probability acquisition module, is specifically included：
Geologic risk evaluation template acquisition submodule, for according to oil-gas reservoir sample, geologic risk to be carried out to zone
Analysis, to obtain geologic risk evaluation template, wherein, geologic risk evaluation template is：
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G is the prospect pit sample totality for reservoir exploration, and u is mathematic expectaion, and S is covariance matrix, d (x, G)
For prospect pit sample x to prospect pit sample totality G mahalanobis distance；
Into hiding probability acquisition submodule, for according to geologic risk evaluation template, calculate oil-gas reservoir in zone into
Probability is hidden, wherein, it is into probability is hidden：
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G in formulaHCOverall, the G for oil wellDRYOverall, the G for dry-wellHC、GDRY∈ G, GHCDensity Distribution
Function is fHC(X), GDRYDensity fonction be fDRY(X)。GHCPrior probability be qHC, GDRY
Prior probability be qDRY, qHC+qDRY=1.
9. petroleum zone according to claim 7 explores economic evaluation device, it is characterised in that also wrap
Include：
Probability Distribution Model acquisition module, for the oil-gas reservoir sample according to zone, obtains the oil-gas reservoir storage of zone
Probability Distribution Model is measured, wherein, the oil-gas reservoir sample includes oil-gas reservoir reserves；
Oil-gas reservoir number acquisition module, the oil for obtaining pre-set interval according to oil-gas reservoir reserves probability Distribution Model
Gas reservoir number.
10. petroleum zone according to claim 9 explores economic evaluation device, it is characterised in that prospect pit
Number acquisition module, specifically for：
To favorably carrying out prospect pit number prediction into Tibetan area, wherein, the oil-gas reservoir number of prospect pit number=pre-set interval ×
It was found that single oil gas hides the prospect pit number/annual wildcat success rate needed, favorably it is located at into Tibetan area in pre-set interval；
If favorably having multiple into Tibetan area, the prospect pit number favorably into the pre-set interval where Tibetan area is carried out respectively
Calculate, and the prospect pit number of each pre-set interval is added, to obtain total prospect pit number；
Described device also includes：
Oil-gas reservoir reserves acquisition module, the oil-gas reservoir of pre-set interval is obtained according to oil-gas reservoir reserves probability Distribution Model
Reserves；
Economic evaluation module specifically for：
Economic expenditure part is explored according to the prospect pit number of pre-set interval to zone to evaluate；
Economic well-being of workers and staff part is explored according to the oil-gas reservoir reserves of pre-set interval to zone to evaluate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610096860.9A CN107103377A (en) | 2016-02-23 | 2016-02-23 | Petroleum zone explores methodology of economic evaluation and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096860.9A CN107103377A (en) | 2016-02-23 | 2016-02-23 | Petroleum zone explores methodology of economic evaluation and device |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109583672A (en) * | 2017-09-28 | 2019-04-05 | 中国石油化工股份有限公司 | Risk prospect pit exploration decision method and system |
| CN109948904A (en) * | 2019-02-21 | 2019-06-28 | 西南石油大学 | A method of oil-gas bearing area is sought with evaluation parameter weight |
-
2016
- 2016-02-23 CN CN201610096860.9A patent/CN107103377A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109583672A (en) * | 2017-09-28 | 2019-04-05 | 中国石油化工股份有限公司 | Risk prospect pit exploration decision method and system |
| CN109948904A (en) * | 2019-02-21 | 2019-06-28 | 西南石油大学 | A method of oil-gas bearing area is sought with evaluation parameter weight |
| CN109948904B (en) * | 2019-02-21 | 2022-11-18 | 西南石油大学 | Method for calculating evaluation parameter weight of hydrocarbon-containing zone |
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