CN110067555A - The determination method and apparatus of the minimum dynamic holdup of carbonate rock oil well - Google Patents
The determination method and apparatus of the minimum dynamic holdup of carbonate rock oil well Download PDFInfo
- Publication number
- CN110067555A CN110067555A CN201810066897.6A CN201810066897A CN110067555A CN 110067555 A CN110067555 A CN 110067555A CN 201810066897 A CN201810066897 A CN 201810066897A CN 110067555 A CN110067555 A CN 110067555A
- Authority
- CN
- China
- Prior art keywords
- oil
- production
- gas
- carbonate rock
- oil well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
Abstract
The present invention provides a kind of determination method and apparatus of the minimum dynamic holdup of carbonate rock oil well, which comprises obtains economic limit oil production, oil density, pump setting depth, gas-liquid interface, prime stratum oil volume factor, current oil volume factor in formation and the average system compressibility of carbonate rock oil well；According to economic limit oil production, oil density, pump setting depth and the gas-liquid interface of the carbonate rock oil well, unit pressure drop oil production is determined；According to the unit pressure drop oil production, the oil density, prime stratum oil volume factor, current oil volume factor in formation and average system compressibility, the minimum dynamic holdup of the carbonate rock oil well is determined.So as to calculate the minimum dynamic holdup of the carbonate rock oil well in economic limit oil production.
Description
Technical field
The present invention relates to field of oil field oil extraction more particularly to a kind of determination sides of the minimum dynamic holdup of carbonate rock oil well
Method and device.
Background technique
The main oil-producing interval of carbonate rock oil well usually stitches greatly the geological state in big hole, and reservoir has apparent non-equal
The biggish bottom water water body of association in matter feature while oil well.
During exploiting carbonate rock oil well, once bottom-water breakthrough and after entering water layer, due to crude oil and bottom water
The moisture content of density variation, oil reservoir rises rapidly, and can cause to suppress to the oil reservoir of production pay, lead to yield sharp fall.
And after oil well water breakthrough, with the quickening of the bottom water rate of climb, the harvesting speed of oil well is also successively decreased therewith.Carbon is known by above-mentioned
The exploitation difficulty of Carbonate Rocks oil well is big, and therefore, it is necessary to consider economic cost.Crude oil under certain price terms, deposit by workover treatment
In certain economic limit oil production, if after well workover, produced oil production amount is smaller, manufacturing enterprise's loss will lead to, generally
In the case of economic limit oil production can be determined according to economic benefit parameter.
But the corresponding carbonate rock oil well minimum dynamic holdup of economic limit oil production is difficult to calculate at present, only by warp
Proved recipe method is unable to satisfy produced on-site reality.
Summary of the invention
The present invention provides a kind of determination method and apparatus of the minimum dynamic holdup of carbonate rock oil well, can calculate
The minimum dynamic of carbonate rock oil well is stored up when economic limit oil production.
The present invention provides a kind of determination method of the minimum dynamic holdup of carbonate rock oil well, comprising:
Obtain economic limit oil production, oil density, the pump setting depth, gas-liquid interface, prime stratum of carbonate rock oil well
Oil volume factor, current oil volume factor in formation and average system compressibility；
According to economic limit oil production, oil density, pump setting depth and the gas-liquid interface of the carbonate rock oil well, determine
Unit pressure drop oil production；
According to the unit pressure drop oil production, the oil density, the prime stratum oil volume factor, it is described at present
Oil volume factor in formation and the average aggregate compressed coefficient, determine the minimum dynamic holdup of the carbonate rock oil well.
Optionally, economic limit oil production, oil density, the pump setting depth according to the carbonate rock oil well is gentle
Liquid interface determines unit pressure drop oil production, comprising:
The unit pressure drop oil production is calculated according to following formula one:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates the economic limit oil production, and ρ indicates the oil density, h2Indicate the pump setting depth,
h1Indicate that the gas-liquid interface, Δ Q indicate the unit pressure drop oil production, g indicates acceleration of gravity.
Optionally, described according to the unit pressure drop oil production, the oil density, the prime stratum crude oil volume system
Several, the described current oil volume factor in formation and the average aggregate compressed coefficient, determine the minimum of the carbonate rock oil well
Dynamic holdup, comprising:
The minimum dynamic holdup of the carbonate rock oil well is calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates the unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotDescribed in expression
The average aggregate compressed coefficient, BoIndicate that the current oil volume factor in formation, N indicate the most petty action of the carbonate rock oil well
State reserves.
Optionally, the economic limit oil production for obtaining carbonate rock oil well, comprising:
The economic limit oil production is determined according to current crude oil price and total production cost.
Optionally, the gas-liquid interface for obtaining carbonate rock oil well, comprising:
Production gas-oil ratio and gas-liquid interface relational graph when obtaining the carbonate rock oil well stop-spraying；
According to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production gas-oil ratio, gas-liquid circle is determined
Face.
Second aspect of the present invention provides a kind of determining device of the minimum dynamic holdup of carbonate rock oil well, comprising:
Module is obtained, for obtaining economic limit oil production, oil density, pump setting depth, the gas-liquid of carbonate rock oil well
Interface, prime stratum oil volume factor, current oil volume factor in formation and average system compressibility；
First determining module, it is deep for being hung according to the economic limit oil production of the carbonate rock oil well, oil density, pump
Degree and gas-liquid interface, determine unit pressure drop oil production；
Second determining module, for according to the unit pressure drop oil production, the oil density, the prime stratum crude oil
Volume factor, the current oil volume factor in formation and the average aggregate compressed coefficient, determine the carbonate rock oil well
Minimum dynamic holdup.
Optionally, first determining module, is specifically used for:
The unit pressure drop oil production is calculated according to following formula one:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates the economic limit oil production, and ρ indicates the oil density, h2Indicate the pump setting depth,
h1Indicate that the gas-liquid interface, Δ Q indicate the unit pressure drop oil production, g indicates acceleration of gravity.
Optionally, second determining module, is specifically used for:
The minimum dynamic holdup of the carbonate rock oil well is calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates the unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotDescribed in expression
The average aggregate compressed coefficient, BoIndicate that the current oil volume factor in formation, N indicate the most petty action of the carbonate rock oil well
State reserves.
The acquisition module includes:
First acquisition submodule, for determining the economic limit oil-producing according to current crude oil price and total production cost
Amount.
Optionally, the acquisition module includes:
Second acquisition submodule, production gas-oil ratio and gas-liquid interface relationship when for obtaining the carbonate rock oil well stop-spraying
Figure；
It determines submodule, is used for according to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production gas-oil ratio,
Determine the gas-liquid interface.
Third aspect present invention provides a kind of determining device of the minimum dynamic holdup of carbonate rock oil well, described device packet
Include: processor, memory and transceiver, for storing instruction, the transceiver is used for and other equipment communication for the memory,
The processor is for executing the instruction stored in the memory, so that described device executes method as described below:
Obtain economic limit oil production, oil density, the pump setting depth, gas-liquid interface, prime stratum of carbonate rock oil well
Oil volume factor, current oil volume factor in formation and average system compressibility；
According to economic limit oil production, oil density, pump setting depth and the gas-liquid interface of the carbonate rock oil well, determine
Unit pressure drop oil production；
According to the unit pressure drop oil production, the oil density, the prime stratum oil volume factor, it is described at present
Oil volume factor in formation and the average aggregate compressed coefficient, determine the minimum dynamic holdup of the carbonate rock oil well.
Optionally, economic limit oil production, oil density, the pump setting depth according to the carbonate rock oil well is gentle
Liquid interface determines unit pressure drop oil production, comprising:
The unit pressure drop oil production is calculated according to following formula one:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates the economic limit oil production, and ρ indicates the oil density, h2Indicate the pump setting depth,
h1Indicate that the gas-liquid interface, Δ Q indicate the unit pressure drop oil production, g is indicated.
Optionally, according to the unit pressure drop oil production, the oil density, the prime stratum oil volume factor,
The current oil volume factor in formation and the average aggregate compressed coefficient determine the minimum dynamic of the carbonate rock oil well
Reserves, comprising:
The minimum dynamic holdup of the carbonate rock oil well is calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates the unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotDescribed in expression
The average aggregate compressed coefficient, BoIndicate that the current oil volume factor in formation, N indicate the most petty action of the carbonate rock oil well
State reserves.
Optionally, the economic limit oil production for obtaining carbonate rock oil well, comprising:
The economic limit oil production is determined according to current crude oil price and total production cost.
Optionally, the gas-liquid interface for obtaining carbonate rock oil well, comprising:
Production gas-oil ratio and gas-liquid interface relational graph when obtaining the carbonate rock oil well stop-spraying；
According to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production gas-oil ratio, gas-liquid circle is determined
Face.
The determination method and apparatus of the minimum dynamic holdup of carbonate rock oil well provided by the invention, comprising: obtain carbonic acid
The economic limit oil production of rock salt oil well, oil density, pump setting depth, gas-liquid interface, prime stratum oil volume factor, at present
Oil volume factor in formation and average system compressibility；According to the economic limit oil production of the carbonate rock oil well, crude oil
Density, pump setting depth and gas-liquid interface determine unit pressure drop oil production；It is close according to the unit pressure drop oil production, the crude oil
Degree, prime stratum oil volume factor, current oil volume factor in formation and average system compressibility, determine the carbonate
The minimum dynamic holdup of shale oil well.It is stored up so as to calculate the minimum dynamic of carbonate rock oil well in economic limit oil production
Amount.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the process of the determination method of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention one provides
Figure；
Fig. 2 is a kind of gas-oil ratio and gas-liquid interface relational graph；
Fig. 3 is that the structure of the determining device of the minimum dynamic holdup of carbonate rock oil well provided by Embodiment 2 of the present invention is shown
It is intended to；
Fig. 4 is that the structure of the determining device of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention three provides is shown
It is intended to；
Fig. 5 is that the structure of the determining device of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention four provides is shown
It is intended to；
Fig. 6 is that the structure of the determining device of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention five provides is shown
It is intended to.
Through the above attached drawings, it has been shown that the specific embodiment of the present invention will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of the inventive concept in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate idea of the invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Carbonate rock is a kind of highly important type of reservoir, and carbonate rock is more complicated, span when being formed such as basin
Degree is big, buried depth span is big, heterogeneity is strong, crack solubility development impact factor is more, old stratum experience is a lot of tectogenetic
The features such as change, the rule so as to cause the distribution of Carbonate Oil gas field are not easy to grasp.There is the carbonate rock point of large area in China
Cloth area, Exploration Domain have a high potential, therefore, far-reaching to the research significance of carbonate rock oil well.
The economic oil production of the limit of carbonate rock oil well has important practical significance for well design exploitation, economic pole
Limited production oil mass refers to that oil field enters the production middle and later periods, and oil production starts to successively decrease, and economic benefit declines therewith, when oil production drops to
When a certain numerical value, the productivity effect of oil well can only meet the needs of production cost, and oil production at this time is known as economic limit oil-producing
Amount, after oil production is decremented to limiting economic rate, if continuing to exploit, it is meant that therefore loss of capital production studies oil well
Economic limit oil production have important economic significance.
Fig. 1 is the process of the determination method of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention one provides
The method of figure, the present embodiment is executed by the determining device of the minimum dynamic holdup of carbonate rock oil well, which can be dedicated
Computer, general purpose computer, PC, mobile phone, tablet computer etc., as shown in Figure 1, method provided in this embodiment includes
Following steps:
Step S101, obtain the economic limit oil production of carbonate rock oil well, oil density, pump setting depth, gas-liquid interface,
Prime stratum oil volume factor, current oil volume factor in formation and average system compressibility.
There are many calculation method of economic limit oil production, and common computation model has: Weibull (Wcibull) predicts mould
Type, IICZ model, broad sense father-in-law's formula model, logistic (Logistic) prediction model, Arps hyperbolic decline model.Each oil well
Itself condition and feature should be combined, and according to the strategy and target of company, selectes one or several models and carries out prediction point
Analysis, then in conjunction with the predictive analysis results of each model, is combined forecast analysis, to obtain final prediction result, to enterprise
The production and operation of industry is instructed.For single oil well, when its income be equal to cost when yield, be exactly the economy of the oil well
Ultimate oil output.Economic limit oil production and cost, oil price, daily management, the tax rate etc. are related.
Optionally, economic limit oil production is determined according to current crude oil price and total production cost.The total production cost can
With include drilling well totle drilling cost, complete well cost, bottom layer treatment cost, lifting expense, cost of equipment maintenance, operating cost, manually at
Originally, ground installation and the defeated expense of collection etc..The generation totle drilling cost is also related with production practice, the equipment that different production practices use and
Technique may be different, therefore, the corresponding complete well cost of different production practices, bottom layer treatment cost, lifting expense, plant maintenance at
Sheet, operating cost, cost of labor, ground installation may be different from the defeated expense of collection.Under normal conditions, different production practices are corresponding
Cost of labor, ground installation and the defeated expense of collection it is essentially identical.
The oil mining period is longer, and entire exploit can use a kind of production practice in the period, can also open in different
The stage is adopted using different production practices.
When using a kind of production practice in the exploitation period of oil well, the corresponding life of different production practices can be calculated separately
Totle drilling cost is produced, and then the corresponding economic limit oil production of different production practices is obtained according to current crude oil price, according to enterprise
Estimated cost selects an economic limit oil production as Carbonate Oil from the multiple economic limit oil production being calculated
The economic limit oil production of well.It can choose economic limit oil production corresponding with the immediate total production cost of estimated cost to make
For the economic limit oil production of carbonate rock oil well.The characteristics of due to carbonate rock oil well itself, it may only be possible to special using certain
Production practice is determined, then only need to calculate the corresponding economic limit oil production of specific exploitation, by the corresponding warp of the specific exploitation
Economic limit oil production of the Ji ultimate oil output as carbonate rock oil well.
When oil well different development phases use different production practices when, calculate separately being produced into for each development phase
Then the production cost of each development phase is added up and obtains total production cost by this, and then total according to current crude oil price and production
Cost counts the economic limit oil production of counted carbonate rock oil well.
Wherein, the unit of total production cost can be Wan Yuan, and crude oil price can be member/t.
Petroleum not through processing is usually called crude oil, crude oil is a kind of dark brown and with green fluorescence, is had
The toughness oily liquids of special odor.It is the mixture of a variety of liquid hydrocarbons such as alkane, cycloalkane, aromatic hydrocarbon and alkene.
Oil density refers to (20 degree, 0.1MPa) every cubic metre of crude quality at the standard conditions, the unit of oil density
For g/cm, the value of oil density is 30.75-0.85 (g/cm3).Oil density in the present embodiment refers to that average crude oil is close
Degree, average oil density and production gas-oil ratio (gas-oil ratio, abbreviation GOR) are related, and different production gas-oil ratios are corresponding flat
Equal oil density is different.Oil density can be obtained according to oil reservoir data check, can also be obtained, can also be passed through by measurement
Repeatedly measurement obtains average oil density.
Pump setting depth refers to the depth of well head to oil well pump, it is specific calculate it is as follows: pump setting depth=oil benefit is long away from+tubing hanger
Degree+tubing hanger pipe nipple length+oil pipe cumulative length+above tool length of pump barrel suction inlet.The pump setting depth can be preparatory rule
It sets.
The ratio of oil well gas production and oil production is usually called gas-oil ratio, it indicates that every one ton of crude oil of extraction adjoint will be adopted
How many cubic metres of natural gases out.Under the conditions of oilbearing stratum, a certain number of natural gases are dissolved in crude oil, natural gas is dissolved in stone
It can lead to the expansion of petroleum volume in oil, specific gravity and viscosity reduce, reduces fluid head of liquid, so that oil well is easier to self-spray, have
Conducive to oil exploitation.When formation pressure (saturation pressure of crude oil) is reduced to a certain boundary, the natural gas dissolved start from
It is escaped in crude oil.Formation pressure and gas-oil ratio are the main indicators of flowing capacity of oilwell.If oil reservoir driving method is hydraulic drives
When, in recovery process, all gas is all in that dissolved state is in petroleum, and gas-oil ratio is equivalent to the gas being dissolved in petroleum
Amount.
Optionally, the gas-liquid interface for obtaining carbonate rock oil well, specifically: obtain the carbonate rock oil well stop-spraying
When production gas-oil ratio and gas-liquid interface relational graph；According to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production
Gas-oil ratio determines the gas-liquid interface.Fig. 2 is a kind of gas-oil ratio and gas-liquid interface relational graph, and horizontal axis is gas-oil ratio in Fig. 2, is indulged
Axis is gas-liquid interface, and the unit of gas-oil ratio is cm3/ t, the unit of gas-liquid interface are m (rice).As shown in Figure 2, with gas-liquid circle
The intensification in face, gas-oil ratio gradually increase.
Oil volume factor, also known as crude oil subsurface volume coefficient refer to crude oil in the volume (i.e. stratum oil volume) of underground
With its ratio between volume after the degassing of ground, i.e.,Wherein, VfIndicate volume of the crude oil in underground, VsIndicate that crude oil exists
Volume after the degassing of ground, oil volume factor dimensionless.Prime stratum oil volume factor refers to that the oil well in oil reservoir is not opened
Reservoir volume factor before adopting, at present oil volume factor in formation refer to oil mining to current reservoir volume factor, it is original
Oil volume factor in formation and current oil volume factor in formation can be obtained by measurement.
System compressibility refers to: the every decline 1MPa of pressure, can arrange from the rock of unit volume by elastic energy
Volume out.The average aggregate compressed coefficient refers to: all every decline 1MPa of oil well pressure in block, from the rock of unit volume
By the average value for the average external volume that elastic energy can be discharged.It can test or be calculated by simulation core, such as: it is logical
Cross following formula calculating:
Wherein, C0Indicate the compressed coefficient of oil, CwIndicate the compressed coefficient of water, CpIndicate the compressed coefficient of blowhole, V0
Indicate volume oily in hole, VwIndicate the volume of water in hole, VpIndicating the volume of blowhole, dp indicates the pressure of decline,
VfIndicate the volume of rock；
It willIt brings above formula into and obtains C3=φ (SoiC0+SwiCw+Cp)；
Wherein, φ indicates the porosity of rock, SoiIndicate initial oil saturation, SwiIndicate irreducible water saturation, C3Table
Show the every decline 1MPa of pressure, the fluid volume being discharged from the rock of unit volume by elastic energy.
Step S102, according to economic limit oil production, oil density, pump setting depth and gas-liquid circle of carbonate rock oil well
Face determines unit pressure drop oil production.
The unit of unit pressure drop oil production is t/MPa (the every megapascal of ton), and unit pressure drop oil production refers to the every reduction of pressure drop
1MPa is capable of the number of the oil mass of output.It optionally, can be according to following one unit of account pressure drop oil production of formula:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates economic limit oil production, and ρ indicates oil density, h2Indicate pump setting depth, h1Indicate gas-liquid circle
Face, Δ Q indicate unit pressure drop oil production.
By above-mentioned formula one it is found that economic limit oil production, which is equal to unit pressure drop oil production (t/MPa), adopts drop multiplied by machine
Low back pressure (MPa), machine, which is adopted, reduces back pressure equal to ρ × g × (h2-h1).Formula one is deformed to obtain:
So as to calculate unit pressure drop oil production.
Step S103, former according to unit pressure drop oil production, oil density, prime stratum oil volume factor, current stratum
Oil volume coefficient and average system compressibility determine the minimum dynamic holdup of carbonate rock oil well.
Optionally, the minimum dynamic holdup of carbonate rock oil well can be calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotIndicate average aggregate
The compressed coefficient, BoIndicate that current oil volume factor in formation, N indicate the minimum dynamic holdup of carbonate rock oil well.
Table one is a kind of schematic diagram of measurement result of carbonate rock oil well:
Table one
In the present embodiment, by the economic limit oil production, oil density, the pump setting depth, gas that obtain carbonate rock oil well
Liquid interface, prime stratum oil volume factor, current oil volume factor in formation and average system compressibility；According to the carbon
Economic limit oil production, oil density, pump setting depth and the gas-liquid interface of Carbonate Rocks oil well, determine unit pressure drop oil production；Root
According to the unit pressure drop oil production, the oil density, prime stratum oil volume factor, current oil volume factor in formation and
The average aggregate compressed coefficient determines the minimum dynamic holdup of the carbonate rock oil well.So as to calculate in economic limit
The minimum dynamic holdup of carbonate rock oil well when oil production.
Fig. 3 is that the structure of the determining device of the minimum dynamic holdup of carbonate rock oil well provided by Embodiment 2 of the present invention is shown
It is intended to, as shown in figure 3, device provided in this embodiment includes:
Module 11 is obtained, for obtaining economic limit oil production, oil density, the pump setting depth, gas of carbonate rock oil well
Liquid interface, prime stratum oil volume factor, current oil volume factor in formation and average system compressibility；
First determining module 12, for being hung according to the economic limit oil production of the carbonate rock oil well, oil density, pump
Depth and gas-liquid interface determine unit pressure drop oil production；
Second determining module 13, for former according to the unit pressure drop oil production, the oil density, the prime stratum
Oil volume coefficient, the current oil volume factor in formation and the average aggregate compressed coefficient, determine the Carbonate Oil
The minimum dynamic holdup of well.
Optionally, first determining module 12, is specifically used for:
The unit pressure drop oil production is calculated according to following formula one:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates the economic limit oil production, and ρ indicates the oil density, h2Indicate the pump setting depth,
h1Indicate that the gas-liquid interface, Δ Q indicate the unit pressure drop oil production.
Optionally, second determining module 13, is specifically used for:
The minimum dynamic holdup of the carbonate rock oil well is calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates the unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotDescribed in expression
The average aggregate compressed coefficient, BoIndicate that the current oil volume factor in formation, N indicate the most petty action of the carbonate rock oil well
State reserves.
Fig. 4 is that the structure of the determining device of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention three provides is shown
It is intended to, as shown in figure 4, on the basis of device provided in this embodiment device shown in Fig. 3, the acquisition module 11 includes:
First acquisition submodule 111, for determining that the economic limit produces according to current crude oil price and total production cost
Oil mass.
Fig. 5 is that the structure of the determining device of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention four provides is shown
It is intended to, as shown in figure 5, on the basis of device provided in this embodiment device shown in Fig. 4, the acquisition module 11 further include:
Second acquisition submodule 112, production gas-oil ratio and gas-liquid interface when for obtaining the carbonate rock oil well stop-spraying
Relational graph；
Submodule 113 is determined, for according to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production gas and oil
Than determining the gas-liquid interface.
The device that embodiment two is provided to example IV, can be used for executing the method for above-described embodiment one, specific implementation side
Formula is similar with technical effect, and which is not described herein again.
Fig. 6 is that the structure of the determining device of the minimum dynamic holdup for the carbonate rock oil well that the embodiment of the present invention five provides is shown
It is intended to, as shown in fig. 6, the device of the present embodiment includes: processor 21, memory 22 and transceiver 23, the memory 22 is used
In store instruction, the transceiver 23 is used for and other equipment communication, the processor 21 are deposited in the memory for executing
The instruction of storage, so that described device executes method as described below:
Obtain economic limit oil production, oil density, the pump setting depth, gas-liquid interface, prime stratum of carbonate rock oil well
Oil volume factor, current oil volume factor in formation and average system compressibility；
According to economic limit oil production, oil density, pump setting depth and the gas-liquid interface of the carbonate rock oil well, determine
Unit pressure drop oil production；
According to the unit pressure drop oil production, the oil density, the prime stratum oil volume factor, it is described at present
Oil volume factor in formation and the average aggregate compressed coefficient, determine the minimum dynamic holdup of the carbonate rock oil well.
Optionally, economic limit oil production, oil density, the pump setting depth according to the carbonate rock oil well is gentle
Liquid interface determines unit pressure drop oil production, comprising:
The unit pressure drop oil production is calculated according to following formula one:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates the economic limit oil production, and ρ indicates the oil density, h2Indicate the pump setting depth,
h1Indicate that the gas-liquid interface, Δ Q indicate the unit pressure drop oil production, g is indicated.
Optionally, according to the unit pressure drop oil production, the oil density, the prime stratum oil volume factor,
The current oil volume factor in formation and the average aggregate compressed coefficient determine the minimum dynamic of the carbonate rock oil well
Reserves, comprising:
The minimum dynamic holdup of the carbonate rock oil well is calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates the unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotDescribed in expression
The average aggregate compressed coefficient, BoIndicate that the current oil volume factor in formation, N indicate the most petty action of the carbonate rock oil well
State reserves.
Optionally, the economic limit oil production for obtaining carbonate rock oil well, comprising:
The economic limit oil production is determined according to current crude oil price and total production cost.
Optionally, the gas-liquid interface for obtaining carbonate rock oil well, comprising:
Production gas-oil ratio and gas-liquid interface relational graph when obtaining the carbonate rock oil well stop-spraying；
According to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production gas-oil ratio, gas-liquid circle is determined
Face.
It is appreciated that processor mentioned in the present invention can be central processing unit (CPU), general processor, number letter
Number processor (DSP), specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic devices
Part, transistor logic, hardware component or any combination thereof.It, which may be implemented or executes, combines present disclosure institute
The various illustrative logic blocks of description, module and circuit.The processor is also possible to realize the combination of computing function, example
It is such as combined comprising one or more microprocessors, DSP and the combination of microprocessor etc..
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.The present invention is directed to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claims are pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by appended claims
System.
Claims (10)
1. a kind of determination method of the minimum dynamic holdup of carbonate rock oil well characterized by comprising
Obtain economic limit oil production, oil density, the pump setting depth, gas-liquid interface, prime stratum crude oil of carbonate rock oil well
Volume factor, current oil volume factor in formation and average system compressibility；
According to economic limit oil production, oil density, pump setting depth and the gas-liquid interface of the carbonate rock oil well, unit is determined
Pressure drop oil production；
According to the unit pressure drop oil production, the oil density, the prime stratum oil volume factor, the current stratum
Oil volume factor and the average aggregate compressed coefficient, determine the minimum dynamic holdup of the carbonate rock oil well.
2. the method according to claim 1, wherein described produce according to the economic limit of the carbonate rock oil well
Oil mass, oil density, pump setting depth and gas-liquid interface determine unit pressure drop oil production, comprising:
The unit pressure drop oil production is calculated according to following formula one:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates the economic limit oil production, and ρ indicates the oil density, h2Indicate the pump setting depth, h1Table
Show that the gas-liquid interface, Δ Q indicate the unit pressure drop oil production, g indicates acceleration of gravity.
3. according to the method described in claim 2, it is characterized in that, according to the unit pressure drop oil production, the oil density,
The prime stratum oil volume factor, the current oil volume factor in formation and the average aggregate compressed coefficient determine
The minimum dynamic holdup of the carbonate rock oil well, comprising:
The minimum dynamic holdup of the carbonate rock oil well is calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates the unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotIndicate described average
System compressibility, BoIndicate that the current oil volume factor in formation, N indicate that the minimum dynamic of the carbonate rock oil well is stored up
Amount.
4. method according to claim 1-3, which is characterized in that the economic pole for obtaining carbonate rock oil well
Limited production oil mass, comprising:
The economic limit oil production is determined according to current crude oil price and total production cost.
5. method according to claim 1-3, which is characterized in that gas-liquid circle for obtaining carbonate rock oil well
Face, comprising:
Production gas-oil ratio and gas-liquid interface relational graph when obtaining the carbonate rock oil well stop-spraying；
According to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production gas-oil ratio, the gas-liquid interface is determined.
6. a kind of determining device of the minimum dynamic holdup of carbonate rock oil well characterized by comprising
Obtain module, for obtain the economic limit oil production of carbonate rock oil well, oil density, pump setting depth, gas-liquid interface,
Prime stratum oil volume factor, current oil volume factor in formation and average system compressibility；
First determining module, for according to the economic limit oil production of the carbonate rock oil well, oil density, pump setting depth and
Gas-liquid interface determines unit pressure drop oil production；
Second determining module, for according to the unit pressure drop oil production, the oil density, the prime stratum crude oil volume
Coefficient, the current oil volume factor in formation and the average aggregate compressed coefficient, determine the carbonate rock oil well most
Small dynamic holdup.
7. device according to claim 6, which is characterized in that first determining module is specifically used for:
The unit pressure drop oil production is calculated according to following formula one:
Δ Q "=ρ × g × (h2-h1) × Δ Q (formula one)；
Wherein, Δ Q " indicates the economic limit oil production, and ρ indicates the oil density, h2Indicate the pump setting depth, h1Table
Show that the gas-liquid interface, Δ Q indicate the unit pressure drop oil production, g indicates acceleration of gravity.
8. device according to claim 7, which is characterized in that second determining module is specifically used for:
The minimum dynamic holdup of the carbonate rock oil well is calculated according to following formula two:
Δ Q=N × Boi×Cot×ρ/Bo(formula two)
Wherein, Δ Q indicates the unit pressure drop oil production, BoiIndicate prime stratum oil volume factor, CotIndicate described average
System compressibility, BoIndicate that the current oil volume factor in formation, N indicate that the minimum dynamic of the carbonate rock oil well is stored up
Amount.
9. according to the described in any item devices of claim 6-8, which is characterized in that the acquisition module includes:
First acquisition submodule, for determining the economic limit oil production according to current crude oil price and total production cost.
10. according to the described in any item devices of claim 6-8, which is characterized in that the acquisition module includes:
Second acquisition submodule, production gas-oil ratio and gas-liquid interface relational graph when for obtaining the carbonate rock oil well stop-spraying；
Submodule is determined, for determining according to the production gas-oil ratio and gas-liquid interface relational graph, and prediction production gas-oil ratio
The gas-liquid interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066897.6A CN110067555B (en) | 2018-01-24 | 2018-01-24 | Method and device for determining minimum dynamic reserve of carbonate oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810066897.6A CN110067555B (en) | 2018-01-24 | 2018-01-24 | Method and device for determining minimum dynamic reserve of carbonate oil well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110067555A true CN110067555A (en) | 2019-07-30 |
| CN110067555B CN110067555B (en) | 2022-03-29 |
Family
ID=67365406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810066897.6A Active CN110067555B (en) | 2018-01-24 | 2018-01-24 | Method and device for determining minimum dynamic reserve of carbonate oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110067555B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746839A (en) * | 2019-10-31 | 2021-05-04 | 中国石油天然气股份有限公司 | Method and device for determining volume coefficient of crude oil |
| CN113537668A (en) * | 2020-04-15 | 2021-10-22 | 中国石油化工股份有限公司 | Method and system for evaluating geological reserves of crude oil in unfilled karst cave |
| CN113537668B (en) * | 2020-04-15 | 2024-04-19 | 中国石油化工股份有限公司 | Method and system for evaluating crude oil geological reserves in unfilled karst cave |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767356A (en) * | 2012-08-08 | 2012-11-07 | 张方礼 | Method for using combustion and vapor combination flooding to exploit thick oil |
| CN104314539A (en) * | 2014-10-20 | 2015-01-28 | 中国石油天然气股份有限公司 | Artificial foaming-oil huff and puff oil production method for heavy oil reservoir |
| CN105243182A (en) * | 2015-09-08 | 2016-01-13 | 中国石油天然气股份有限公司 | Method for calculating dynamic reserve of dense oil fractured horizontal well |
| CN105464652A (en) * | 2015-12-03 | 2016-04-06 | 恒泰艾普石油天然气技术服务股份有限公司 | Dynamic reserve calculation method and system for fracture and cave type carbonatite oil reservoir fracture and cave unit |
| CN105673001A (en) * | 2014-11-20 | 2016-06-15 | 中国石油天然气股份有限公司 | Processing method for reduction in formation pressure of carbonatite single well |
| CN105956938A (en) * | 2016-05-18 | 2016-09-21 | 恒泰艾普（北京）能源科技研究院有限公司 | Fracture-vug type oil reservoir dynamic reserve calculation method |
| CN106127604A (en) * | 2016-06-17 | 2016-11-16 | 中国石油天然气股份有限公司 | A kind of dynamic holdup computational methods and device |
| CN106150477A (en) * | 2015-04-23 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of method determining single well controlled reserves |
| WO2017078671A1 (en) * | 2015-11-02 | 2017-05-11 | Halliburton Energy Services Inc. | Method and apparatus for fast economic analysis of production of fracture-stimulated wells |
| CN106846157A (en) * | 2016-12-28 | 2017-06-13 | 中国石油天然气股份有限公司 | A kind of Reserves Assessment method in steam soak later stage under SEC criterions |
| WO2017188858A1 (en) * | 2016-04-28 | 2017-11-02 | Schlumberger Canada Limited | Reservoir performance system |
-
2018
- 2018-01-24 CN CN201810066897.6A patent/CN110067555B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767356A (en) * | 2012-08-08 | 2012-11-07 | 张方礼 | Method for using combustion and vapor combination flooding to exploit thick oil |
| CN104314539A (en) * | 2014-10-20 | 2015-01-28 | 中国石油天然气股份有限公司 | Artificial foaming-oil huff and puff oil production method for heavy oil reservoir |
| CN105673001A (en) * | 2014-11-20 | 2016-06-15 | 中国石油天然气股份有限公司 | Processing method for reduction in formation pressure of carbonatite single well |
| CN106150477A (en) * | 2015-04-23 | 2016-11-23 | 中国石油化工股份有限公司 | A kind of method determining single well controlled reserves |
| CN105243182A (en) * | 2015-09-08 | 2016-01-13 | 中国石油天然气股份有限公司 | Method for calculating dynamic reserve of dense oil fractured horizontal well |
| WO2017078671A1 (en) * | 2015-11-02 | 2017-05-11 | Halliburton Energy Services Inc. | Method and apparatus for fast economic analysis of production of fracture-stimulated wells |
| CN105464652A (en) * | 2015-12-03 | 2016-04-06 | 恒泰艾普石油天然气技术服务股份有限公司 | Dynamic reserve calculation method and system for fracture and cave type carbonatite oil reservoir fracture and cave unit |
| WO2017188858A1 (en) * | 2016-04-28 | 2017-11-02 | Schlumberger Canada Limited | Reservoir performance system |
| CN105956938A (en) * | 2016-05-18 | 2016-09-21 | 恒泰艾普（北京）能源科技研究院有限公司 | Fracture-vug type oil reservoir dynamic reserve calculation method |
| CN106127604A (en) * | 2016-06-17 | 2016-11-16 | 中国石油天然气股份有限公司 | A kind of dynamic holdup computational methods and device |
| CN106846157A (en) * | 2016-12-28 | 2017-06-13 | 中国石油天然气股份有限公司 | A kind of Reserves Assessment method in steam soak later stage under SEC criterions |
Non-Patent Citations (15)
| Title |
|---|
| CAI ZHENHUA ET AL.: "A New Calculation Method for Single Well Controlled Dynamic Reserves of Tight Gas", 《SOCIETY OF PETROLEUM ENGINEERS》 * |
| KAI ZHANG ET AL.: "Screening and Evaluation of Preponderant Reserves in Oil Or Gas Fields", 《ICCIS 2010》 * |
| LUO RUILAN ET AL.: "A New Method for Forecasting Dynamic Reserve of Fractured Gas Well in Low-permeability and Tight Gas Reservoir", 《SOCIETY OF PETROLEUM ENGINEERS》 * |
| 伊向艺等: "《石油钻采工程》", 28 February 2006 * |
| 刘振宇等: "利用压力动态资料估算单井控制储量", 《钻采工艺》 * |
| 张平等: "不同类型油藏动态测试指标表征方法应用研究", 《中国优秀硕士学位论文全文数据库基础科学辑》 * |
| 梁凇等: "基于单井控制储量与井网密度的老油田经济极限井网密度计算新方法", 《油气地质与采收率》 * |
| 王一等: "英买2油藏缝洞单元划分及其合理开发政策界限研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 罗元等: "乌5井区百口泉组低渗油藏开发方式优化研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 袁向春等: "《碳酸盐岩缝洞型油藏提高采收率技术》", 31 December 2017, 东营：中国石油大学出版社 * |
| 谢绪权等: "关于单井控制储量经济极限的研究", 《石油勘探与开发》 * |
| 贾冀五等: "油井产量经济极限和控制储量极限的预测决策支持系统", 《石油学报》 * |
| 陈元千等: "《现代油藏工程》", 30 August 2001, 石油工业出版社 * |
| 陈利新等: "缝洞型油藏动态储量计算的一种新方法——以塔里木盆地哈拉哈塘油田为例", 《新疆石油地质》 * |
| 靳秀菊等: "用单井经济极限储量评价复杂断块气藏可开发储量", 《天然气工业》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746839A (en) * | 2019-10-31 | 2021-05-04 | 中国石油天然气股份有限公司 | Method and device for determining volume coefficient of crude oil |
| CN112746839B (en) * | 2019-10-31 | 2023-07-25 | 中国石油天然气股份有限公司 | Method and device for determining volume coefficient of crude oil |
| CN113537668A (en) * | 2020-04-15 | 2021-10-22 | 中国石油化工股份有限公司 | Method and system for evaluating geological reserves of crude oil in unfilled karst cave |
| CN113537668B (en) * | 2020-04-15 | 2024-04-19 | 中国石油化工股份有限公司 | Method and system for evaluating crude oil geological reserves in unfilled karst cave |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110067555B (en) | 2022-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108868748B (en) | Method for calculating repeated fracturing fracture opening pressure of shale gas horizontal well | |
| Sawatzky et al. | Tracking cold production footprints | |
| CN105626036B (en) | A kind of reasonable Liquid output reservoir engineering calculation method of determining oil reservoir | |
| CN110334868A (en) | A kind of method that coupled fluid flowing predicts the optimal stewing well time with geological stress | |
| CN103498663B (en) | A kind of sucker rod pump hoisting system pumping technological parameter defining method and device | |
| CN112593901A (en) | Shale gas well full production cycle production system and drainage and extraction process intelligent optimization method | |
| CN105625990A (en) | Method for mining shale oil by virtue of horizontal well through performing volume fracturing on reservoirs | |
| Ghauri et al. | Changing concepts in carbonate waterflooding-West Texas Denver unit project-an illustrative example | |
| CN106651158B (en) | Quantitative evaluation method for water injection development effectiveness degree of ultra-low permeability tight reservoir horizontal well | |
| RU2737043C1 (en) | Method for development of oil reservoir of multi-layer oil and gas condensate deposit | |
| Al-Obaidi et al. | The efficiency of gas injection into low-permeability multilayer hydrocarbon reservoirs | |
| CN110067555A (en) | The determination method and apparatus of the minimum dynamic holdup of carbonate rock oil well | |
| CN111582532A (en) | Stress-sensitive oil reservoir horizontal well fluid production capacity prediction method and device | |
| CN115952620A (en) | Shale reservoir fracturing prevention construction method and key fracture control material | |
| CN105003251A (en) | Method for predicting and calculating quantities of recoverable resources of deep-stratum underground brine single wells | |
| CN111963161B (en) | Method and device for determining hidden abnormal oil well | |
| RU2418942C1 (en) | Procedure for well development | |
| CN113803042B (en) | Single-section single-cluster dense fracturing method and system | |
| CN110630230B (en) | Development method for controlling water content of water flooding after ultra-high water content period | |
| CN109424355B (en) | Method and device for acquiring collapse state of oil well | |
| Wu et al. | Numerical simulation of choke size optimization in a shale gas well | |
| Chen et al. | Drilling Efficiency and Cost for Different Drill Technology in Loose Stratum | |
| CN112324413A (en) | Chemical construction method for improving injection amount of injection well | |
| Kalu-Ulu et al. | Overcoming the urge for infill drilling in marginal field redevelopment through artificial lift deployment | |
| RU2732746C1 (en) | Method for development of powerful low-permeable oil deposit with application of water and gas pumping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |