CN107369100A - Water-drive pool recovers recoverable reserves potentiality measuring and calculating new method - Google Patents
Water-drive pool recovers recoverable reserves potentiality measuring and calculating new method Download PDFInfo
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- CN107369100A CN107369100A CN201610701901.2A CN201610701901A CN107369100A CN 107369100 A CN107369100 A CN 107369100A CN 201610701901 A CN201610701901 A CN 201610701901A CN 107369100 A CN107369100 A CN 107369100A
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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
- G06Q50/02—Agriculture; Fishing; Mining
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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
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
Abstract
The present invention provides a kind of water-drive pool and recovers recoverable reserves potentiality measuring and calculating new method, and the water-drive pool, which recovers recoverable reserves potentiality measuring and calculating new method, to be included：Step 1, the basic data of water-drive pool to be evaluated is compiled；Step 2, establish theoretical natural declining rate under different residual recoverable reserves rate of oil productions and, with the variation relation plate of moisture content, theoretical natural declining rate is calculated according to plate；Step 3, judge whether that recoverable reserves is out of control；Step 4, theoretical residual recoverable reserves rate of oil production is calculated；Step 5, according to theoretical residual recoverable reserves rate of oil production, the recoverable reserves actually controlled is calculated, measuring and calculating recovers recoverable reserves potentiality.The water-drive pool, which recovers recoverable reserves potentiality measuring and calculating new method, can evaluate the development effectiveness of water-drive pool, can calculate the actual recoverable reserves controlled of mining site unit again, so as to the recoverable potentiality of evaluation unit recoverable reserves.
Description
Technical field
The present invention relates to oil-gas field development field, especially relates to a kind of water-drive pool and recovers the measuring and calculating of recoverable reserves potentiality
New method.
Background technology
Recoverable reserves refers to that a part of reserves produced under prior art and economic condition from oil reservoirs,
It is to reflect oil reservoir material base, the most direct of potentiality to be exploited, most critical index, accurately holds recoverable reserves to oil field actual production
The sizable directive significance having.For many years, development technique personnel do to the computational methods of recoverable reserves, influence factor etc.
Many fruitful researchs.After oil field development enters depletion stage, conventional method mainly has water driver front and yield
Diminishing method.Both approaches be all stablize water drive and without extensive regulating measures under the conditions of predict oil field recoverable reserves.
And in the actual development of oil field, well damage inevitably occurs, high water-cut well such as closes down at the behavior, cause well pattern improvement by
Destroy, cause recoverable reserves out of control.Therefore, it is necessary to find a kind of method that can eliminate the various underproduction and well stimulation to calculate
Recoverable reserves, the actual recoverable reserves controlled of well pattern is grasped, so as to the development effectiveness and potentiality of objective reflection oil reservoir.
Natural depletion refers to eliminate the effects of the act after the various underproduction or the well stimulation factors successively decreased, purely because moisture content rises
Caused by production decline.Residual recoverable reserves rate of oil production is the percentage that yearly rate-oil production accounts for residual recoverable reserves, is reflection
Oilfield exploitation intensity, the comprehensive exploitation index of reserve-production ratio variation tendency.Yu Qitai is pointed out, after oil field enters depletion stage, is remained
The change of remaining recoverable reserves rate of oil production not only reflects the production decline law in oil field, moreover it is possible to reflects the change and adjustment of recoverable reserves
Measure is successively decreased influence on oil field.Therefore, if the variation relation of natural depletion and residual recoverable reserves rate of oil production can be established, just can
Natural depletion change and recoverable reserves change are connected.For this, we have invented a kind of new water-drive pool to recover that storage can be adopted
Potentiality measuring and calculating new method is measured, solves above technical problem.
The content of the invention
It is an object of the invention to provide it is a kind of can the development effectiveness current to water-drive pool evaluate, and calculate oil reservoir reality
The water-drive pool of the recoverable reserves of border control recovers recoverable reserves potentiality measuring and calculating new method.
The purpose of the present invention can be achieved by the following technical measures：Water-drive pool recovers the new side of recoverable reserves potentiality measuring and calculating
Method, the water-drive pool, which recovers recoverable reserves potentiality measuring and calculating new method, to be included：Step 1, the base of water-drive pool to be evaluated is compiled
Plinth data；Step 2, establish under different residual recoverable reserves rate of oil productions that natural declining rate is with aqueous change plate, according to figure
Version calculates theoretical natural declining rate；Step 3, judge whether that recoverable reserves is out of control；Step 4, judging recoverable reserves be present
When out of control, theoretical residual recoverable reserves rate of oil production is calculated；Step 5, according to theoretical residual recoverable reserves rate of oil production, calculate real
The recoverable reserves of border control, measuring and calculating recover recoverable reserves potentiality.
The purpose of the present invention can be also achieved by the following technical measures：
In step 1, the basic data of the arrangement water-drive pool to be evaluated of collection includes permeability saturation curve, underground original
Oily viscosity, underground water viscosity, the development index of unit.
In step 2, according to oil-water two-phase flow feature, derive in a certain residual recoverable reserves rate of oil production it is theoretical from
Right lapse rate and establishes plate with the variation relation of moisture content, according to plate, is recovered the oil speed by current real surplus recoverable reserves
Degree asks for corresponding theoretical natural declining rate.
In step 3, actual natural declining rate and theoretical value are contrasted, if the actual natural declining rate of mining site unit is equal to reason
By value, illustrate unit recoverable reserves without out of control, development effectiveness is preferable, and flow terminates；If actual natural declining rate is more than theory
Value, it is out of control to illustrate that unit recoverable reserves is present, development effectiveness is poor, and flow enters step 4.
In step 4, according to natural declining rate under different residual recoverable reserves rate of oil productions with aqueous change plate, meter
Mining site unit is calculated in current natural declining rate, corresponding theoretical residual recoverable reserves rate of oil production.
In steps of 5, according to the definition of residual recoverable reserves rate of oil production, recoverable reserves calculation formula is derived, by unit
Yearly rate-oil production, cumulative oil production, residual recoverable reserves rate of oil production, the actual recoverable reserves controlled of computing unit, by with
The demarcation recoverable reserves contrast of unit, the recoverable reserves controlling extent of computing unit, recoverable reserves scale out of control.
Water-drive pool in the present invention recovers recoverable reserves potentiality measuring and calculating new method, is commented suitable for water-drive pool development effectiveness
Valency and exploitation potential assessment, the water-drive pool that is particularly suitable for use in recover the measuring and calculating of recoverable reserves potentiality scale, and the present invention has derived
The timing of residual recoverable reserves rate of oil production one, natural declining rate and aqueous variation relation, and establish different residues and can adopt storage
Natural declining rate is with aqueous change plate under amount rate of oil production.This method recovers the oil natural declining rate and residual recoverable reserves
Speed connects, and establishes the relation of natural declining rate and recoverable reserves indirectly, so as to calculate the actual control of mining site unit
The recoverable reserves of system, it can further calculate recoverable reserves controlling extent, recoverable reserves scale out of control etc..Using this method, not only
Can the development effectiveness current to water-drive pool evaluate, moreover it is possible to calculate the actual recoverable reserves controlled of oil reservoir, and then evaluate oil
Hide the recoverable reserves potentiality scale that can recover to employ.Such Potential Evaluation result more can effectively instruct the modification scenario in oil field,
It is suitable for the needs of current development situation development.
Brief description of the drawings
The water-drive pool that Fig. 1 is the present invention recovers the flow that recoverable reserves potentiality calculate a specific embodiment of new method
Figure；
Fig. 2 is under the specific embodiment interruption block oil reservoir difference residual recoverable reserves rate of oil production of the present invention, is passed naturally
Lapse rate with moisture content change plate；
Fig. 3 is the change of the unit natural declining rate of local control unit L CU river 31 and moisture content in a specific embodiment of the invention
Relation curve.
Embodiment
For enable the present invention above and other objects, features and advantages become apparent, it is cited below particularly go out preferable implementation
Example, and coordinate shown in accompanying drawing, it is described in detail below.
As shown in figure 1, the water-drive pool that Fig. 1 is the present invention recovers the flow chart that recoverable reserves potentiality calculate new method.
Step 101, basic data is prepared.Compile the basic data of water-drive pool to be evaluated, including relative permeability
Curve, underground crude oil viscosity, underground water viscosity, the development index of unit etc..
Step 103, theoretical natural declining rate is calculated.According to oil-water two-phase flow feature, storage can be adopted in a certain residue by deriving
Theory natural declining rate and establishes plate with the variation relation of moisture content when measuring rate of oil production.According to plate, by mining site water drive list
The current real surplus recoverable reserves rate of oil production of member asks for corresponding theoretical natural declining rate.
Step 105, judge whether that recoverable reserves is out of control.Contrast actual natural declining rate and theoretical value.If mining site
The actual natural declining rate of unit is equal to theoretical value, illustrates unit recoverable reserves without out of control, development effectiveness is preferable；It is if actual natural
Lapse rate is more than theoretical value, and it is out of control to illustrate that unit recoverable reserves is present, and development effectiveness is poor, continues step 107.
Step 107, theoretical residual recoverable reserves rate of oil production is calculated.According to plate, mining site unit is calculated current natural
During lapse rate, corresponding theoretical residual recoverable reserves rate of oil production.
Step 109, measuring and calculating recovers recoverable reserves potentiality.According to the definition of residual recoverable reserves rate of oil production, can derive can
Adopt reserves calculation formula.It is actual by the yearly rate-oil production of unit, cumulative oil production, residual recoverable reserves rate of oil production, computing unit
The recoverable reserves of control.Contrasted by demarcation recoverable reserves with unit, can computing unit recoverable reserves controlling extent, out of control
Recoverable reserves scale etc..
In the specific embodiment of the present invention, by taking the unit of local control unit L CU river 31 as an example, illustrate that recoverable reserves potentiality are surveyed
Calculate implementing procedure.
Step 1, development index of the phase percolation curve of the unit of river 31, the viscosity of underground crude oil and water, unit etc. is compiled
Related data.
Step 2, data is mutually oozed according to the unit of river 31, establishes natural declining rate under different residual recoverable reserves rate of oil productions
With aqueous change plate, as shown in Figure 2.And calculate when current residual recoverable reserves rate of oil production is 15.0%, theory is certainly
Right lapse rate should be 14.5%, as shown in Figure 3.
Step 3, the current natural declining rate of the unit of river 31 is 16.0%, higher than theoretical natural depletion, illustrates the unit yield
The fast, recoverable reserves that successively decreases exists out of control, and development effectiveness is to be improved, continues step 4.
Step 4, when natural depletion is 16.0%, calculate theoretical residual recoverable reserves rate of oil production and should be 17.3%, such as
Shown in Fig. 3.
Step 5, it is counter to push away recoverable reserves calculation formula according to the definition of residual recoverable reserves rate of oil production.Known 2015
Yearly rate-oil production 5.27 × 104T, cumulative oil production 449 × 104T, when unit residual recoverable reserves rate of oil production is 17.3%, calculate
The actual recoverable reserves controlled of current well pattern is obtained as 474.3 × 104t.Unit demarcates recoverable reserves 479 × 104T, therefore also have
4.7×104T recoverable reserves is not effectively controlled, that is, it is 4.7 × 10 to recover recoverable reserves potentiality4t。
In next step, the workload of recoverable reserves can be increased by implementing stepout well, perforations adding, extract etc., recovers out of control and adopt
Reserves, suggestions for improvement, give full play to oil reservoir development potentiality.
The present invention has derived oil reservoir in the timing of residual recoverable reserves rate of oil production one according to the characteristics of oil-water two-phase flow,
Natural declining rate connects natural depletion change and recoverable reserves change with aqueous variation relation.This method
To evaluate the development effectiveness of water-drive pool, the actual recoverable reserves controlled of mining site unit can be calculated again, so as to which evaluation unit can
Adopt the recoverable potentiality of reserves.
Claims (6)
1. water-drive pool recovers recoverable reserves potentiality measuring and calculating new method, it is characterised in that the water-drive pool recovers recoverable reserves and dived
Power measuring and calculating new method includes：
Step 1, the basic data of water-drive pool to be evaluated is compiled；
Step 2, establish under different residual recoverable reserves rate of oil productions that natural declining rate is with aqueous change plate, according to plate meter
Calculate theoretical natural declining rate；
Step 3, judge whether that recoverable reserves is out of control；
Step 4, judge exist recoverable reserves it is out of control when, calculate theoretical residual recoverable reserves rate of oil production；
Step 5, according to theoretical residual recoverable reserves rate of oil production, actual control recoverable reserves is calculated, measuring and calculating recovers recoverable reserves
Potentiality.
2. water-drive pool according to claim 1 recovers recoverable reserves potentiality measuring and calculating new method, it is characterised in that in step
In 1, the basic data of the arrangement water-drive pool to be evaluated of collection includes permeability saturation curve, underground crude oil viscosity, underground water
Viscosity, the development index of unit.
3. water-drive pool according to claim 1 recovers recoverable reserves potentiality measuring and calculating new method, it is characterised in that in step
In 2, according to oil-water two-phase flow feature, theory natural declining rate is derived in a certain residual recoverable reserves rate of oil production with aqueous
The variation relation of rate, and plate is established, according to plate, corresponding reason is asked for by current real surplus recoverable reserves rate of oil production
By natural declining rate.
4. water-drive pool according to claim 1 recovers recoverable reserves potentiality measuring and calculating new method, it is characterised in that in step
In 3, actual natural declining rate and theoretical value are contrasted, if the actual natural declining rate of mining site unit is equal to theoretical value, illustrates unit
Recoverable reserves is without out of control, and development effectiveness is preferable, and flow terminates；If actual natural declining rate is more than theoretical value, illustrate that unit can
Adopt reserves and exist out of control, development effectiveness is poor, and flow enters step 4.
5. water-drive pool according to claim 1 recovers recoverable reserves potentiality measuring and calculating new method, it is characterised in that in step
In 4, according to natural declining rate under different residual recoverable reserves rate of oil productions with aqueous change plate, calculate mining site unit and working as
During preceding natural declining rate, corresponding theoretical residual recoverable reserves rate of oil production.
6. water-drive pool according to claim 1 recovers recoverable reserves potentiality measuring and calculating new method, it is characterised in that in step
In 5, according to the definition of residual recoverable reserves rate of oil production, recoverable reserves calculation formula is derived, by the yearly rate-oil production of unit, accumulation
Oil production, residual recoverable reserves rate of oil production, the actual recoverable reserves controlled of computing unit, storage can be adopted by the demarcation with unit
Amount contrast, the recoverable reserves controlling extent of computing unit, recoverable reserves scale out of control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610701901.2A CN107369100A (en) | 2016-08-22 | 2016-08-22 | Water-drive pool recovers recoverable reserves potentiality measuring and calculating new method |
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| CN201610701901.2A CN107369100A (en) | 2016-08-22 | 2016-08-22 | Water-drive pool recovers recoverable reserves potentiality measuring and calculating new method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180007A (en) * | 2017-12-26 | 2018-06-19 | 中国石油化工股份有限公司 | Old filed economic limit drilling well potentiality and recovery ratio measuring and calculating new method |
| CN113266322A (en) * | 2020-02-17 | 2021-08-17 | 中国石油天然气股份有限公司 | Water-drive reservoir decreasing rate prediction method and device |
| CN114165227A (en) * | 2020-09-11 | 2022-03-11 | 中国石油化工股份有限公司 | Flow field adjustment feasibility quantitative evaluation method based on reservoir equilibrium displacement |
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| CN102720485A (en) * | 2012-07-20 | 2012-10-10 | 中国石油天然气股份有限公司 | Prediction method of water cut increasing rate of water field with medium-high water content |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180007A (en) * | 2017-12-26 | 2018-06-19 | 中国石油化工股份有限公司 | Old filed economic limit drilling well potentiality and recovery ratio measuring and calculating new method |
| CN108180007B (en) * | 2017-12-26 | 2021-11-16 | 中国石油化工股份有限公司 | New method for measuring and calculating economic ultimate drilling potential and recovery ratio of old oil field |
| CN113266322A (en) * | 2020-02-17 | 2021-08-17 | 中国石油天然气股份有限公司 | Water-drive reservoir decreasing rate prediction method and device |
| CN114165227A (en) * | 2020-09-11 | 2022-03-11 | 中国石油化工股份有限公司 | Flow field adjustment feasibility quantitative evaluation method based on reservoir equilibrium displacement |
| CN114165227B (en) * | 2020-09-11 | 2024-03-01 | 中国石油化工股份有限公司 | Quantitative evaluation method for flow field adjustment feasibility based on oil reservoir balanced displacement |
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Application publication date: 20171121 |