CN107939365A - Prepad fluid energization Fracturing Project generation method and device - Google Patents
Prepad fluid energization Fracturing Project generation method and device Download PDFInfo
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- CN107939365A CN107939365A CN201711138015.4A CN201711138015A CN107939365A CN 107939365 A CN107939365 A CN 107939365A CN 201711138015 A CN201711138015 A CN 201711138015A CN 107939365 A CN107939365 A CN 107939365A
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- 239000012530 fluid Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 179
- 238000002347 injection Methods 0.000 claims abstract description 163
- 239000007924 injection Substances 0.000 claims abstract description 163
- 239000003129 oil well Substances 0.000 claims abstract description 163
- 238000004519 manufacturing process Methods 0.000 claims abstract description 107
- 238000004088 simulation Methods 0.000 claims abstract description 52
- 230000008901 benefit Effects 0.000 claims abstract description 29
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims description 18
- 238000009792 diffusion process Methods 0.000 claims description 18
- 238000009825 accumulation Methods 0.000 claims description 15
- 230000001186 cumulative effect Effects 0.000 claims description 10
- 239000011435 rock Substances 0.000 claims description 10
- 238000007405 data analysis Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 6
- 230000001965 increasing effect Effects 0.000 claims description 5
- 208000027418 Wounds and injury Diseases 0.000 claims description 4
- 230000006378 damage Effects 0.000 claims description 4
- 208000014674 injury Diseases 0.000 claims description 4
- 239000004575 stone Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 120
- 230000015654 memory Effects 0.000 description 24
- 238000010586 diagram Methods 0.000 description 20
- 238000004891 communication Methods 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 5
- 239000007943 implant Substances 0.000 description 5
- 230000003993 interaction Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010779 crude oil Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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Abstract
The present invention provides a kind of prepad fluid energization Fracturing Project generation method and device, the described method includes：The oil reservoir physical data of target oil well is obtained, and establishes corresponding reservoir model；Strata pressure recovery of the target oil well under different energized liquid injection rates is simulated based on the reservoir model, obtains strata pressure Restoration model；The oil-producing situation described in different energized liquid injection rate fracturings during target oil well is simulated based on the strata pressure Restoration model, obtains corresponding fracture simulation model, and the correspondence between oil production and production time；Send as an envoy to target oil well oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in section of default production time are chosen according to the correspondence, and the fracture simulation model based on the energized liquid injection rate generates corresponding Fracturing Project.The method has a wide range of application, and can be directed to target oil well and generate suitable prepad fluid energization Fracturing Project, to improve the pressure break oil production of corresponding oil well.
Description
Technical field
The present invention relates to hydrofracturing of oil wells technical field, is given birth in particular to a kind of prepad fluid energization Fracturing Project
Into method and device.
Background technology
With widely using for oil gas, hydrofracturing of oil wells technology is developed rapidly, and is increasingly becoming Reservoir Development
During improve Low permeable oil and gas reservoirs or old well oil production important technique measure.Hydraulic fracturing is by fracturing fluid by ground face-pumping
The high pressure that car is formed is conducted to stratum, is made reservoir fracture and is formed man-made fracture, so as to be formed using man-made fracture in reservoir
The passage of oil gas flowing, improves oil gas drainage area and involves scope, improve oil and gas production, wherein carry and be used in fracturing fluid
Support the proppant in crack.But with regard to hydraulic fracturing technology itself, even there is many problems to be solved, wherein such as
What improves the problem of oil-producing effect of hydraulic fracturing technology in itself is one particularly important.
At present, the Fracturing Project used in industry mainstream is to improve the side of fracture condudtiviy by varying sand feeding amount
Formula, improves pressure break oil-producing effect.But the limitation of this scheme is very big, and application range is narrow, those can not be fundamentally improved
The pressure break oil production of stratum energy more serious oil well in debt.Therefore, one kind how is provided to have a wide range of application, can be according to not
Oil well with situation proposes suitable Fracturing Project, to improve the Fracturing Project generation method of the pressure break oil production of corresponding oil well,
To those skilled in the art, it is the technical problem of urgent need solution.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, it is an object of the invention to provide a kind of prepad fluid energization pressure break side
Case generation method and device, the prepad fluid energization Fracturing Project generation method have a wide range of application, can be by for different shapes
The mode of the Fracturing Project of the energized liquid of suitable implant dose is equipped with before the oil well correspondence generation of condition, improves the pressure break production of corresponding oil well
Oil mass.
For prepad fluid energization Fracturing Project generation method, preferred embodiments of the present invention provide a kind of prepad fluid energization
Fracturing Project generation method.The prepad fluid energization Fracturing Project generation method includes：
The oil reservoir physical data of target oil well is obtained, and is established and the target oil well pair according to the oil reservoir physical data
The reservoir model answered；
Strata pressure recovery based on the reservoir model to the target oil well under different energized liquid injection rates
Simulated, obtain corresponding strata pressure Restoration model；
Based on the strata pressure Restoration model to the oil-producing described in different energized liquid injection rate fracturings during target oil well
Situation is simulated, and obtains corresponding fracture simulation model under different energized liquid injection rates, and between oil production and production time
Correspondence；
The target oil well of sening as an envoy to is chosen in the default production time from each energized liquid injection rate according to the correspondence
Oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in section, and it is based on the corresponding pressure break of the energized liquid injection rate
Simulation model generates corresponding Fracturing Project.
For prepad fluid energization Fracturing Project generating means, preferred embodiments of the present invention provide a kind of prepad fluid energization
Fracturing Project generating means.The prepad fluid energization Fracturing Project generating means include：
Reservoir model establishes module, for obtaining the oil reservoir physical data of target oil well, and according to the oil reservoir physics number
According to foundation reservoir model corresponding with the target oil well；
Restoration model analog module, for based on the reservoir model to the target oil well in different energized liquid injection rates
Under strata pressure recovery simulated, obtain corresponding strata pressure Restoration model；
Fracturing model analog module, for based on the strata pressure Restoration model to different energized liquid injection rate fracturings
Oil-producing situation during the target oil well is simulated, and obtains corresponding fracture simulation model under different energized liquid injection rates, and
Correspondence between oil production and production time；
Fracturing Project generation module, for choosing the mesh of sening as an envoy to from each energized liquid injection rate according to the correspondence
Oil well oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in section of default production time are marked, and is based on the increasing
Can the corresponding Fracturing Project of the corresponding fracture simulation model generation of liquid injection rate.
In terms of existing technologies, the prepad fluid energization Fracturing Project generation method that preferred embodiments of the present invention provide
And device has the advantages that：The prepad fluid energization Fracturing Project generation method has a wide range of application, can by for
The mode of the Fracturing Project of the energized liquid of suitable implant dose is equipped with before the oil well correspondence generation of different situations, improves corresponding oil well
Pressure break oil production.Specifically, the method, will be according to the oil reservoir physics number after the oil reservoir physical data of target oil well is obtained
According to foundation reservoir model corresponding with the target oil well, and the reservoir model is based on to the target oil well in different energizations
Strata pressure recovery under liquid injection rate is simulated, and obtains the strata pressure Restoration model under different energized liquid injections,
The strata pressure Restoration model is then based on to the oil-producing situation described in different energized liquid injection rate fracturings during target oil well
Simulated, obtain corresponding fracture simulation model under different energized liquid injection rates, and pair between oil production and production time
It should be related to, finally be chosen according to the correspondence from each energized liquid injection rate and send as an envoy to the target oil well in default production
Between oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in section, and be based on the corresponding pressure of the energized liquid injection rate
Split simulation model and generate corresponding Fracturing Project, so that the Fracturing Project of the energized liquid by being equipped with suitable implant dose before generation
Mode, improve the pressure break oil production of the target oil well.
To enable the above objects, features and advantages of the present invention to become apparent, present pre-ferred embodiments cited below particularly,
And attached drawing appended by coordinating, it is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of the claims in the present invention protection domain, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, other relevant attached drawings can also be obtained according to these attached drawings.
Fig. 1 is that server and at least one user terminal communication that preferred embodiments of the present invention provide interacts signal
Figure.
Fig. 2 is a kind of block diagram of the user terminal shown in Fig. 1.
Fig. 3 is a kind of block diagram of the server shown in Fig. 1.
Fig. 4 is a kind of flow signal for the prepad fluid energization Fracturing Project generation method that preferred embodiments of the present invention provide
Figure.
Fig. 5 is the flow diagram for the sub-step that the step S330 shown in Fig. 4 includes.
Fig. 6 is the flow diagram for a part of sub-step that the step S340 shown in Fig. 4 includes.
Fig. 7 is the flow diagram for another part sub-step that the step S340 shown in Fig. 4 includes.
Fig. 8 is that another flow for the prepad fluid energization Fracturing Project generation method that preferred embodiments of the present invention provide is shown
It is intended to.
Fig. 9 is the prepad fluid energization Fracturing Project generating means shown in Fig. 2 that preferred embodiments of the present invention provide
A kind of block diagram.
Figure 10 is the prepad fluid energization Fracturing Project generating means shown in Fig. 2 that preferred embodiments of the present invention provide
Another block diagram.
Icon：10- user terminals；20- servers；30- networks；11- first memories；12- first processors；13-
One communication unit；100- prepad fluid energization Fracturing Project generating means；21- second memories；22- second processors；23- second
Communication unit；110- reservoir models establish module；120- Restoration model analog modules；130- fracturing model analog modules；140-
Fracturing Project generation module；150- corresponding relation building modules.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " setting ", " pacify
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and cannot manage
Solve to indicate or implying relative importance.
Below in conjunction with the accompanying drawings, elaborate to some embodiments of the present invention.In the case where there is no conflict, it is following
Feature in embodiment and embodiment can be mutually combined.
Fig. 1 is refer to, is that the server 20 that preferred embodiments of the present invention provide communicates with least one user terminal 10
Interaction schematic diagram.In embodiments of the present invention, at least one user terminal 10 is communicated to connect with the server 20, institute
State user terminal 10 to communicate with the server 20 by network 30, the data completed between the server 20 are led to
Letter or interaction, so that engineer can be suitable for being equipped with before the oil well correspondence generation of different situations by the user terminal 10
The Fracturing Project of the energized liquid of injection rate, improves the pressure break oil production of corresponding oil well, improves oil-producing efficiency.In the present embodiment,
The user terminal 10 may be, but not limited to, PC (personal computer, PC), tablet computer, a number
Word assistant (personal digital assistant, PDA), mobile internet surfing equipment (mobile Internet device,
MID) etc..The network 30 may be, but not limited to, cable network or wireless network.
Fig. 2 is refer to, is a kind of block diagram of the user terminal 10 shown in Fig. 1.In embodiments of the present invention, institute
State user terminal 10 can include prepad fluid energization Fracturing Project generating means 100, first memory 11, first processor 12 and
First communication unit 13.The first memory 11, first processor 12 and first communication unit, 13 each elements are mutual
Directly or indirectly it is electrically connected, to realize the transmission of data or interaction.For example, these elements between each other can by one or
A plurality of communication bus or signal wire, which are realized, to be electrically connected.
Wherein, the first memory 11 may be, but not limited to, random access memory (Random Access
Memory, RAM), read-only storage (Read Only Memory, ROM), programmable read only memory (Programmable
Read-Only Memory, PROM), Erasable Programmable Read Only Memory EPROM (Erasable Programmable Read-Only
Memory, EPROM), electrically erasable programmable read-only memory (Electric Erasable Programmable Read-
Only Memory, EEPROM) etc..In the present embodiment, the first memory 11 can be used for the oil reservoir thing of storage target oil well
Data, historical production data, and corresponding reservoir model are managed, wherein the oil reservoir physical data can characterize the target oil well
The reservoir of itself, the physical parameter of oil reservoir, the historical production data are carried for characterizing the target oil well in the generation present invention
Oil production data before the prepad fluid energization Fracturing Project of confession, it is current that the reservoir model can characterize the target oil well
Oil pool distribution situation.Wherein, the first memory 11 is additionally operable to storage program, and the first processor 12 is receiving execution
After instruction, described program is performed.
The first processor 12 can be a kind of IC chip of the disposal ability with signal.At described first
Reason device 12 can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit
(Network Processor, NP) etc.；It can also be digital signal processor (DSP), application-specific integrated circuit (ASIC), ready-made
Programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware group
Part.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be with
It is microprocessor or the processor can also be any conventional processor etc..
First communication unit 13 is used to establish the user terminal 10 and the server 20 by the network 30
Between communication connection, and pass through 30 transceiving data of network.
The prepad fluid energization Fracturing Project generating means 100 include it is at least one can be with software or firmware (firmware)
Form be stored in the first memory 11 or be solidificated in the operating system (operating of the user terminal 10
System, OS) in software function module.The first processor 12 be used for perform stored in the first memory 11 can
Execution module, such as software function module and computer journey included by the prepad fluid energization Fracturing Project generating means 100
Sequence etc..In the present embodiment, the prepad fluid energization Fracturing Project generating means 100 can by first communication unit 13 from
Oil reservoir physical data, historical production data and the corresponding pressure change data of acquisition target oil well at server 20, and according to
The oil reservoir physical data of the target oil well establishes the reservoir model of target oil well, based on the reservoir model to different energized liquids
Oil-producing situation described in strata pressure recovery under injection rate and corresponding energized liquid injection rate fracturing during target oil well into
Row simulation, so as to choose target oil well oil-producing efficiency highest in section of default production time of sening as an envoy to from each energized liquid injection rate
Or the highest energized liquid injection rate of economic benefit, and the energized liquid injection rate preposition is had based on energized liquid injection rate generation
Fracturing Project, to improve the pressure break oil production of target oil well, improve oil-producing efficiency, specific prepad fluid energization Fracturing Project life
It is described in detail below into method.
It is understood that the structure shown in Fig. 2 is only a kind of structure diagram of user terminal 10, the user terminal
10 may also include more either less components than shown in Fig. 2 or have the configuration different from shown in Fig. 2.Shown in Fig. 2
Each component can use hardware, software or its combination realize.
Fig. 3 is refer to, is a kind of block diagram of the server 20 shown in Fig. 1.In embodiments of the present invention, it is described
Server 20 includes second memory 21,22 and second communication unit 23 of second processor.At the second memory 21, second
23 each element of reason device 22 and second communication unit is directly or indirectly electrically connected between each other, with realize the transmission of data or
Interaction.It is electrically connected for example, these elements can be realized by one or more communication bus or signal wire between each other.
Wherein, the second memory 21 can store the corresponding oil reservoir physical data of different oil wells, historical production data
And corresponding pressure change data, the second processor 22 can be used for the oil reservoir physical data to each oil well, history to produce number
According to and pressure change data arranged, and by above-mentioned data storage into the second memory 21.Second communication unit
Member 23 can be established by the first communication unit 13 of network 30 and the user terminal 10 and communicated to connect, so as to fulfill data message
Transmission or interaction.In the present embodiment, the second memory 21,22 and second communication unit 23 of second processor and Fig. 2
Shown in first memory 11, the hardware configuration of 12 and first communication unit 13 of first processor each correspond to it is identical, herein
Just no longer introduce one by one.
It is understood that the structure shown in Fig. 3 is only a kind of structure diagram of server 20, the server 20 is also
It may include more either less components than shown in Fig. 3 or there is the configuration different from shown in Fig. 3.It is each shown in Fig. 3
Component can use hardware, software or its combination to realize.
Fig. 4 is refer to, is the one kind for the prepad fluid energization Fracturing Project generation method that preferred embodiments of the present invention provide
Flow diagram.The prepad fluid energization Fracturing Project generation method is applied to the user terminal communicated to connect with server 20
10, oil reservoir physical data, historical production data and the correspondence of each oil well are stored with the second memory 21 of the server 20
Pressure change data, the idiographic flow to the prepad fluid energization Fracturing Project generation method shown in Fig. 4 and step carry out below
Elaborate.
In embodiments of the present invention, the prepad fluid energization Fracturing Project generation method comprises the following steps：
Step S310, obtain target oil well oil reservoir physical data, and according to the oil reservoir physical data establish with it is described
The corresponding reservoir model of target oil well.
In the present embodiment, the user terminal 10 can be deposited by the first communication unit 13 from the second of the server 20
The oil reservoir physical data of target oil well is got at reservoir 21, can be also electrically connected by providing with external information input equipment
Information input interface mode, at external information input equipment obtain target oil well oil reservoir physical data.It is wherein described
Oilwell parameter, reservoir physical property parameter, rock mechanics parameters and the reservoir fluid that oil reservoir physical data includes the target oil well are high
Physical parameter is pressed, the oilwell parameter is used for the physical features for characterizing the target oil well, and the oilwell parameter includes well bore knot
Structure, tubing and casing data, perforation segment data, hole deviation data；The reservoir physical property parameter is used to characterize oil reservoir in the target oil well
Physical features, the reservoir physical property parameter includes oil-water relative permeability data, reservoir porosity, permeability and the saturation number of degrees
According to；The rock mechanics parameters are used for the elastic characteristic for characterizing rock in the target oil well, and the rock mechanics parameters include
The three-dimensional stress of the Young's modulus of rock core, Poisson when reservoir；The reservoir fluid physical data under high pressure is used to characterize the mesh
Physical features of the oil well Crude Oil under strata pressure effect are marked, the reservoir fluid physical data under high pressure is included in target oil well
In-place oil volume in the volume factor of crude oil, pressure dependence data, fluid viscosity, dissolved gas oil ratio, and the target oil well
With generation water volume.
In the present embodiment, the user terminal 10, will be to obtaining after the oil reservoir physical data of target oil well is got
To the oil reservoir physical data carry out classification processing, and established and target oil accordingly based upon the oil reservoir physical data
The corresponding reservoir model of well.
Step S320, the strata pressure based on the reservoir model to the target oil well under different energized liquid injection rates
Recovery is simulated, and obtains corresponding strata pressure Restoration model.
In the present embodiment, the strata pressure recovery is the target oil well under different energized liquid injection rates
Strata pressure recovers to the specific situation of original formation pressure.Specifically, when energized liquid injection rate and history oil production and water outlet
When measuring equal, the strata pressure of the target oil well recovers to original formation pressure；When energized liquid injection rate is 0, target oil
The strata pressure of well is strata pressure now.Therefore, can be to the target oil well in different energizations based on the reservoir model
Strata pressure recovery under liquid injection rate is simulated, and is obtained the corresponding strata pressure of different energized liquid injection rates and is recovered mould
Type.Wherein described energized liquid may be, but not limited to, slippery water, active water etc..
Step S330, based on the strata pressure Restoration model to target oil well described in different energized liquid injection rate fracturings
When oil-producing situation simulated, obtain corresponding fracture simulation model under different energized liquid injection rates, and oil production and production
Correspondence between time.
In the present embodiment, the user terminal 10 can be in the corresponding strata pressure Restoration model of different energized liquid injection rates
On the oil-producing situation described in different energized liquid injection rate fracturings during target oil well is simulated, obtain the injection of different energized liquids
The mesh under the fracture simulation model for characterizing the fracturing process to the target oil well under amount, and different energized liquid injection rates
Mark the oil production of oil well and the correspondence between the production time.
Specifically, Fig. 5 is refer to, is the flow diagram for the sub-step that the step S330 shown in Fig. 4 includes.In this hair
In bright embodiment, based on the strata pressure Restoration model to described in different energized liquid injection rate fracturings in the step S330
The step of oil-producing situation during target oil well is simulated can include sub-step S331, sub-step S332 and sub-step S333.
Wherein, the sub-step S331, sub-step S332 and sub-step S333 are as follows：
Sub-step S331, splits the waterpower described in pressure break during target oil well according to the rock mechanics parameters of the target oil well
Seam information is calculated, and obtains corresponding hydraulic fracture information.
In the present embodiment, the user terminal 10 can be according to the rock mechanics parameters of the target oil well, with reference to usual
In the case of liquid measure and sand amount, log data and well data when carrying out pressure break when being injected without energized liquid to the target oil well, it is right
The relevant information of hydraulic fracture is calculated caused by target oil well described in the pressure break, obtains corresponding hydraulic fracture letter
Breath.Wherein described hydraulic fracture information includes the corresponding hydraulic fracture length of the hydraulic fracture, hydraulic fracture width, waterpower and splits
Seam height and fracture condudtiviy.
Sub-step S332, the hydraulic fracture is loaded on the corresponding strata pressure Restoration model of different energized liquid injection rates
Information, obtains the fracture simulation model of target oil well described in different energized liquid injection rate fracturings.
In the present embodiment, waterpower of the user terminal 10 when getting target oil well described in normal conditions fracturing
After the information of crack, the hydraulic fracture information will be loaded on the corresponding strata pressure Restoration model of different energized liquid injection rates,
So as to obtain the fracture simulation model for characterizing the fracturing process of target oil well described in pressure break under different energized liquid injection rates.
Sub-step S333, carries out data analysis to the fracture simulation model, obtains corresponding oil production and production time
Between correspondence.
In the present embodiment, the user terminal 10 is after the fracture simulation model under obtaining different energized liquid injection rates,
Data analysis will be carried out to the corresponding fracture simulation model of each energized liquid injection rate, and obtain the target under each energized liquid injection rate
The oil production of oil well and the correspondence between the production time.
Specifically, it is described that data analysis is carried out to the fracture simulation model, obtain corresponding oil production and production time
Between correspondence the step of include：
According to the correspondence between the pressure change situation of the target oil well and cumulative oil production, and mesh described in pressure break
Hydraulic fracture flow conductivity during oil well is marked, data analysis is carried out to the fracture simulation model under different energized liquid injection rates, is obtained
The oil production of the target oil well and the correspondence between the production time under to different energized liquid injection rates.
Step S340, target oil well of sening as an envoy to is chosen in default production according to the correspondence from each energized liquid injection rate
Oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in period, and it is corresponding based on the energized liquid injection rate
Fracture simulation model generates corresponding Fracturing Project.
In the present embodiment, the oil-producing efficiency is preset for the target oil well under the action of different energized liquid injection rates
Ratio in production time section between cumulative oil production and corresponding energized liquid, can characterize the target oil well in different energized liquids
The number of oil production in unit injection rate under injection rate；The economic benefit is injected for the target oil well in different energized liquids
The financial cost of the economic value of cumulative oil production and respective energized liquid injection rate in production time section is preset under the action of amount
Between economic net present value (ENPV), the number of output profit of the target oil well under different energized liquid injection rates can be characterized.Institute
Stating user terminal 10 can be according to the oil production of the target oil well under different energized liquid injection rates and corresponding between the production time
Relation, the target oil well oil-producing efficiency highest or warp in section of default production time can be made by being chosen from each energized liquid injection rate
The energized liquid injection rate for helping most effective, and it is preposition based on the corresponding fracture simulation model generation of the energized liquid injection rate
State the Fracturing Project of energized liquid injection rate.
Specifically, Fig. 6 is refer to, is the flow diagram for a part of sub-step that the step S340 shown in Fig. 4 includes.
In embodiments of the present invention, chosen in the step S340 according to the correspondence from each energized liquid injection rate described in sening as an envoy to
Target oil well oil-producing efficiency highest or can be with the step of economic benefit highest energized liquid injection rate in section of default production time
Including sub-step S341, sub-step S342 and sub-step S343.Wherein, the sub-step S341, sub-step S342 and sub-step
S343 is as follows：
Sub-step S341, according to the oil production of the target oil well under different energized liquid injection rates and between the production time
Correspondence, obtains accumulation oil-producing total amount of the target oil well in default production time section under different energized liquid injection rates.
In the present embodiment, the user terminal 10 can be according to the oil-producing of the target oil well under different energized liquid injection rates
Measure the correspondence between the production time, obtain in default production time section the target oil well in different energized liquid injection rates
Accumulation oil-producing total amount under effect.Wherein described default production time section can be 3 years or 4 years, can also be five
Year, specific numerical value can carry out different settings according to throughput requirements by engineer.
Sub-step S342, according to it is each accumulation oil-producing total amount and corresponding energized liquid injection rate between ratio relation,
Oil-producing efficiency of the target oil well under different energized liquid injection rates is obtained, or passes through the economic valency to each accumulation oil-producing total amount
The financial cost of value and corresponding energized liquid injection rate carries out net present value (NPV) computing, obtains the target oil well in different energizations
Economic benefit under liquid injection rate.
In the present embodiment, the user terminal 10 is getting in default production time section the target oil well in difference
Energized liquid injection rate effect under accumulation oil-producing total amount when, each cumulative production total amount can be compared with corresponding energized liquid injection rate
It is worth computing, obtains oil-producing efficiency of the target oil well under different energized liquid injection rates；Also can be by total to each accumulation oil-producing
The financial cost of the economic value of amount and corresponding energized liquid injection rate carries out net present value (NPV) computing, obtains the target oil well
Economic benefit under different energized liquid injection rates.
Sub-step S343, chooses oil-producing efficiency numbers highest or the highest energization of economic benefit from each energized liquid injection rate
Liquid injection rate.
In the present embodiment, the user terminal 10 can be according to the size of oil-producing efficiency numbers or economic benefit numerical value from each
Chosen and the matched energized liquid injection rate of the target oil well in energized liquid injection rate.Specifically, the user terminal 10 is from each
Oil-producing efficiency numbers highest or the highest energized liquid injection rate of economic benefit are chosen in energized liquid injection rate, as with the target
The matched energized liquid injection rate of oil well.
In the present embodiment, the user terminal 10 can choose pattern or warp under the control of engineer using oil-producing efficiency
Benefit of helping chooses pattern, and the matched energized liquid injection rate of the target oil well is chosen, and specific selection mode can be by work
Cheng Shi carries out different settings according to demand.
Fig. 7 is refer to, is the flow diagram for another part sub-step that the step S340 shown in Fig. 4 includes.At this
In inventive embodiments, based on the corresponding corresponding pressure of fracture simulation model generation of the energized liquid injection rate in the step S340
The step of splitting scheme can include sub-step S345 and sub-step S346.Wherein, the sub-step S345 and sub-step S346 be such as
Shown in lower：
Sub-step S345, based on the corresponding fracture simulation model of the energized liquid injection rate, to the fracture simulation model
The pressure diffusion time around middle hydraulic fracture is calculated, and obtains the corresponding pressure diffusion time.
In the present embodiment, the user terminal 10 choose arrive and the matched energized liquid injection rate of the target oil well
Afterwards, hydraulic fracture in the case of being injected into for energized liquid described in the corresponding fracture simulation model of the energized liquid injection rate
The pressure diffusion time of surrounding is calculated, and obtains the corresponding pressure diffusion time.The wherein described pressure diffusion time is one
Period, rather than time point, such as the pressure diffusion time can be 3S~5S.
Sub-step S346, chooses from the pressure diffusion time and relatively low time work is injured to the target oil reservoir
To boil in a covered pot over a slow fire the well time, and corresponding pressure is generated according to the energized liquid injection rate, the fracture simulation model and the stewing well time
Split scheme.
In the present embodiment, pressure of the user terminal 10 when getting the energized liquid and being injected into hydraulic fracture
After diffusion time, situation will be injured to the target oil reservoir with reference to the energized liquid, be selected from the pressure diffusion time
Time relatively low to the target oil reservoir extent of injury and that degree of stability is high is taken as the stewing well time, and according to the energization
Liquid injection rate, the fracture simulation model and stewing well time generation is corresponding with the target oil well preposition has the energization
The Fracturing Project of liquid injection rate, to improve the pressure break oil production of the target oil well, improves oil-producing efficiency.
Fig. 8 is refer to, is the another of the prepad fluid energization Fracturing Project generation method that preferred embodiments of the present invention provide
Kind flow diagram.In embodiments of the present invention, the prepad fluid energization Fracturing Project generation method can also include：
Step S309, obtains the historical production data of target oil well and corresponding pressure change data, generates the target
Correspondence between the pressure change situation and cumulative oil production of oil well.
In the present embodiment, the user terminal 10 can get the target from the second memory 21 of server 20
The historical production data of oil well and corresponding pressure change data, and given birth to according to the historical production data and pressure change data
Correspondence between the pressure change situation of the target oil well and cumulative oil production.
Fig. 9 is refer to, is the prepad fluid energization Fracturing Project generation shown in Fig. 2 of preferred embodiments of the present invention offer
A kind of block diagram of device 100.In embodiments of the present invention, the prepad fluid energization Fracturing Project generating means 100 are wrapped
Include：Reservoir model establishes module 110, Restoration model analog module 120, fracturing model analog module 130 and Fracturing Project generation
Module 140.
The reservoir model establishes module 110, for obtaining the oil reservoir physical data of target oil well, and according to the oil reservoir
Physical data establishes reservoir model corresponding with the target oil well.
In the present embodiment, the reservoir model, which establishes module 110, can perform step S310 in Fig. 4, specifically retouch
State and can refer to above to the detailed description of step S310.
The Restoration model analog module 120, for based on the reservoir model to the target oil well in different energizations
Strata pressure recovery under liquid injection rate is simulated, and obtains corresponding strata pressure Restoration model.
In the present embodiment, the Restoration model analog module 120 can perform the step S320 in Fig. 4, specifically retouch
State and can refer to above to the detailed description of step S320.
The fracturing model analog module 130, for being injected based on the strata pressure Restoration model to different energized liquids
Oil-producing situation described in amount fracturing during target oil well is simulated, and obtains corresponding fracture simulation under different energized liquid injection rates
Correspondence between model, and oil production and production time.
In the present embodiment, the fracturing model analog module 130 is based on the strata pressure Restoration model to different increasings
The mode that oil-producing situation described in energy liquid injection rate fracturing during target oil well is simulated includes：
The hydraulic fracture information described in pressure break during target oil well is carried out according to the rock mechanics parameters of the target oil well
Calculate, obtain corresponding hydraulic fracture information；
The hydraulic fracture information is loaded on the corresponding strata pressure Restoration model of different energized liquid injection rates, is obtained not
With the fracture simulation model of target oil well described in energized liquid injection rate fracturing；
Data analysis is carried out to the fracture simulation model, obtains the corresponding pass between corresponding oil production and production time
System.
Wherein, the fracturing model analog module 130 can perform the step S330 in Fig. 4, and the sub-step in Fig. 5
S331, sub-step S332, sub-step S333, specific description can refer to above to step S330, sub-step S331, sub-step
The detailed description of S332 and sub-step S333.
The Fracturing Project generation module 140, for being selected according to the correspondence from each energized liquid injection rate
Make target oil well oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in section of default production time, and be based on institute
State the corresponding fracture simulation model of energized liquid injection rate and generate corresponding Fracturing Project.
In the present embodiment, the Fracturing Project generation module 140 according to the correspondence from each energized liquid injection rate
It is middle to choose send as an envoy to target oil well oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in section of default production time
Mode include：
According to the oil production of the target oil well and the correspondence between the production time under different energized liquid injection rates, obtain
Accumulation oil-producing total amount of the target oil well in default production time section under to different energized liquid injection rates；
According to the ratio relation between each accumulation oil-producing total amount and corresponding energized liquid injection rate, the target is obtained
Oil-producing efficiency of the oil well under different energized liquid injection rates, or correspond to by the economic value to each accumulation oil-producing total amount and each
Energized liquid injection rate financial cost carry out net present value (NPV) computing, obtain the target oil well under different energized liquid injection rates
Economic benefit；
Oil-producing efficiency numbers highest or the highest energized liquid injection rate of economic benefit are chosen from each energized liquid injection rate.
It is corresponding that the Fracturing Project generation module 140 is based on the corresponding fracture simulation model generation of the energized liquid injection rate
The mode of Fracturing Project include：
Based on the corresponding fracture simulation model of the energized liquid injection rate, to hydraulic fracture week in the fracture simulation model
The pressure diffusion time enclosed is calculated, and obtains the corresponding pressure diffusion time；
The selection time minimum to target oil reservoir injury is used as the stewing well time from the pressure diffusion time,
And corresponding Fracturing Project is generated according to the energized liquid injection rate, the fracture simulation model and the stewing well time.
Wherein, the Fracturing Project generation module 140 can perform the sub-step in the step S340, Fig. 6 in Fig. 4
S341, sub-step S342, sub-step S343, and sub-step S345, sub-step S346 in Fig. 7, specific description can refer to
To the detailed of step S340, sub-step S341, sub-step S342, sub-step S343, sub-step S345 and sub-step S346 in text
Description.
Figure 10 is refer to, is the prepad fluid energization Fracturing Project life shown in Fig. 2 of preferred embodiments of the present invention offer
Into another block diagram of device 100.In embodiments of the present invention, the prepad fluid energization Fracturing Project generating means
100 can also include corresponding relation building module 150.
The corresponding relation building module 150, historical production data and corresponding pressure for obtaining target oil well become
Change data, generate the correspondence between the pressure change situation of the target oil well and cumulative oil production.
In the present embodiment, the corresponding relation building module 150 can perform the step S309 in Fig. 8, specifically retouch
State and can refer to above to the detailed description of step S309.
In conclusion in prepad fluid energization Fracturing Project generation method and device that preferred embodiments of the present invention provide,
The prepad fluid energization Fracturing Project generation method has a wide range of application, before being generated by the oil well correspondence for different situations
The mode of the Fracturing Project of the energized liquid of suitable implant dose is equipped with, improves the pressure break oil production of corresponding oil well.Specifically, the side
Method will be established corresponding with the target oil well after the oil reservoir physical data of target oil well is obtained according to the oil reservoir physical data
Reservoir model, and strata pressure of the target oil well under different energized liquid injection rates is recovered based on the reservoir model
Situation is simulated, and is obtained the strata pressure Restoration model under different energized liquid injections, is then based on the strata pressure and recovers
Model simulates the oil-producing situation described in different energized liquid injection rate fracturings during target oil well, obtains different energized liquid notes
Enter corresponding fracture simulation model under amount, and the correspondence between oil production and production time, finally according to the corresponding pass
System chooses send as an envoy to the target oil well oil-producing efficiency highest or economy in section of default production time from each energized liquid injection rate
Most effective energized liquid injection rate, and corresponding pressure break is generated based on the corresponding fracture simulation model of the energized liquid injection rate
Scheme, so that the Fracturing Project of the energized liquid by being equipped with suitable implant dose before generation, improves the pressure break of the target oil well
Oil production.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. prepad fluid energization Fracturing Project generation method, it is characterised in that the described method includes：The oil reservoir physical data of target oil well is obtained, and it is corresponding with the target oil well according to oil reservoir physical data foundation Reservoir model；Strata pressure recovery of the target oil well under different energized liquid injection rates is carried out based on the reservoir model Simulation, obtains corresponding strata pressure Restoration model；Based on the strata pressure Restoration model to the oil-producing situation described in different energized liquid injection rate fracturings during target oil well Simulated, obtain corresponding fracture simulation model under different energized liquid injection rates, and pair between oil production and production time It should be related to；Chosen according to the correspondence from each energized liquid injection rate and send as an envoy to the target oil well in section of default production time Oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit, and it is based on the corresponding fracture simulation of the energized liquid injection rate Model generates corresponding Fracturing Project.
- 2. according to the method described in claim 1, it is characterized in that, the oil reservoir physical data includes the rock of the target oil well Stone mechanics parameter, it is described based on the strata pressure Restoration model to described in different energized liquid injection rate fracturings during target oil well Oil-producing situation the step of being simulated include：The hydraulic fracture information described in pressure break during target oil well is calculated according to the rock mechanics parameters of the target oil well, Obtain corresponding hydraulic fracture information；The hydraulic fracture information is loaded on the corresponding strata pressure Restoration model of different energized liquid injection rates, obtains different increasings The fracture simulation model of target oil well described in energy liquid injection rate fracturing；Data analysis is carried out to the fracture simulation model, obtains corresponding oil production and the correspondence between the production time.
- 3. according to the method described in claim 2, it is characterized in that, it is described to the fracture simulation model carry out data analysis, The step of obtaining corresponding oil production and correspondence between the production time includes：According to the correspondence between the pressure change situation of the target oil well and cumulative oil production, and target oil described in pressure break Hydraulic fracture flow conductivity during well, carries out data analysis to the fracture simulation model under different energized liquid injection rates, obtains not With the oil production of the target oil well and the correspondence between the production time under energized liquid injection rate.
- 4. according to the method described in claim 1, it is characterized in that, it is described according to the correspondence from each energized liquid injection rate It is middle to choose send as an envoy to the target oil well oil-producing efficiency highest or the highest energized liquid note of economic benefit in section of default production time The step of entering amount includes：According to the oil production of the target oil well and the correspondence between the production time under different energized liquid injection rates, obtain not With accumulation oil-producing total amount of the target oil well under energized liquid injection rate in default production time section；According to the ratio relation between each accumulation oil-producing total amount and corresponding energized liquid injection rate, the target oil well is obtained Oil-producing efficiency under different energized liquid injection rates, or pass through the economic value to each accumulation oil-producing total amount and corresponding increasing The financial cost of energy liquid injection rate carries out net present value (NPV) computing, obtains economy of the target oil well under different energized liquid injection rates Benefit；Oil-producing efficiency numbers highest or the highest energized liquid injection rate of economic benefit are chosen from each energized liquid injection rate.
- 5. according to the method described in claim 1, it is characterized in that, described be based on the corresponding pressure break mould of the energized liquid injection rate The step of analog model generation corresponding Fracturing Project, includes：Based on the corresponding fracture simulation model of the energized liquid injection rate, around hydraulic fracture in the fracture simulation model The pressure diffusion time is calculated, and obtains the corresponding pressure diffusion time；The selection time relatively low to target oil reservoir injury is used as stewing well time, and root from the pressure diffusion time Corresponding Fracturing Project is generated according to the energized liquid injection rate, the fracture simulation model and the stewing well time.
- 6. according to the method described in claim 1, it is characterized in that, the method further includes：The historical production data of target oil well and corresponding pressure change data are obtained, generate the pressure change of the target oil well Correspondence between situation and cumulative oil production.
- 7. a kind of prepad fluid energization Fracturing Project generating means, it is characterised in that described device includes：Reservoir model establishes module, is built for obtaining the oil reservoir physical data of target oil well, and according to the oil reservoir physical data Found reservoir model corresponding with the target oil well；Restoration model analog module, for based on the reservoir model to the target oil well under different energized liquid injection rates Strata pressure recovery is simulated, and obtains corresponding strata pressure Restoration model；Fracturing model analog module, for based on the strata pressure Restoration model to described in different energized liquid injection rate fracturings Oil-producing situation during target oil well is simulated, and obtains corresponding fracture simulation model under different energized liquid injection rates, and oil-producing Correspondence between amount and production time；Fracturing Project generation module, for choosing the target oil of sening as an envoy to from each energized liquid injection rate according to the correspondence Well oil-producing efficiency highest or the highest energized liquid injection rate of economic benefit in section of default production time, and it is based on the energized liquid The corresponding fracture simulation model of injection rate generates corresponding Fracturing Project.
- 8. device according to claim 7, it is characterised in that the Fracturing Project generation module is according to the correspondence Send as an envoy to the target oil well oil-producing efficiency highest or economic effect in section of default production time are chosen from each energized liquid injection rate The mode of the highest energized liquid injection rate of benefit includes：According to the oil production of the target oil well and the correspondence between the production time under different energized liquid injection rates, obtain not With accumulation oil-producing total amount of the target oil well under energized liquid injection rate in default production time section；According to the ratio relation between each accumulation oil-producing total amount and corresponding energized liquid injection rate, the target oil well is obtained Oil-producing efficiency under different energized liquid injection rates, or pass through the economic value to each accumulation oil-producing total amount and corresponding increasing The financial cost of energy liquid injection rate carries out net present value (NPV) computing, obtains economy of the target oil well under different energized liquid injection rates Benefit；Oil-producing efficiency numbers highest or the highest energized liquid injection rate of economic benefit are chosen from each energized liquid injection rate.
- 9. device according to claim 7, it is characterised in that the Fracturing Project generation module is noted based on the energized liquid Entering the mode of the corresponding Fracturing Project of the corresponding fracture simulation model generation of amount includes：Based on the corresponding fracture simulation model of the energized liquid injection rate, around hydraulic fracture in the fracture simulation model The pressure diffusion time is calculated, and obtains the corresponding pressure diffusion time；The selection time relatively low to target oil reservoir injury is used as stewing well time, and root from the pressure diffusion time Corresponding Fracturing Project is generated according to the energized liquid injection rate, the fracture simulation model and the stewing well time.
- 10. device according to claim 7, it is characterised in that described device further includes：Corresponding relation building module, for the historical production data for obtaining target oil well and corresponding pressure change data, generation Correspondence between the pressure change situation and cumulative oil production of the target oil well.
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