CN107366533A - The determination method and apparatus of the yield increase of oil reservoir - Google Patents

The determination method and apparatus of the yield increase of oil reservoir Download PDF

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Publication number
CN107366533A
CN107366533A CN201710650477.8A CN201710650477A CN107366533A CN 107366533 A CN107366533 A CN 107366533A CN 201710650477 A CN201710650477 A CN 201710650477A CN 107366533 A CN107366533 A CN 107366533A
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China
Prior art keywords
yield increase
oil
reservoir
target reservoir
increase
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CN201710650477.8A
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CN107366533B (en
Inventor
常宝华
崔永平
周代余
孙贺东
刘志良
曹雯
周登洪
马小平
江杰
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/02Agriculture; Fishing; Mining

Abstract

This application provides a kind of determination method and apparatus of the yield increase of oil reservoir, wherein, this method includes:Obtain the characteristics of reservoirs of target reservoir;Obtain the characteristic parameter of each default yield increase in multiple default yield increases to be determined;According to the characteristic parameter of each default yield increase in the characteristics of reservoirs of target reservoir and multiple default yield increases, the oil increment of each default yield increase is determined respectively;According to the oil increment of each default yield increase in multiple default yield increases, the yield increase applied to target reservoir is determined from multiple default yield increases.Because the program is by having taken into full account the geological condition of target reservoir and the implementation feature of different yield increases, the oil increment corresponding to different yield increases is determined respectively, and using oil increment as the foundation of quantitative assessment, determine the yield increase of target reservoir.Therefore, can simply, accurately determine out the yield increase of the target reservoir being adapt to, so as to reach preferable effect of increasing production.

Description

The determination method and apparatus of the yield increase of oil reservoir
Technical field
The application belongs to oil reservoir development technical field, the determination method and dress of more particularly to a kind of yield increase of oil reservoir Put.
Background technology
During to fracture-pore reservoir specifically develop, it will usually first this kind of oil reservoir is carried out by natural energy Exhaustion is exploited;After oil well stop-spraying, then using one kind in oil pumper, electric submersible pump or gaslift measure etc., carry out volume increase exploitation.No Same yield increase has the characteristics of each different;Corresponding to different oil reservoir situations, increased using different yield increases Production exploitation, obtained effect also differ.Therefore, the yield increase being adapted with target reservoir how is determined, so as to target It is a major issue that oil reservoir, which carries out effective volume increase exploitation,.
In order to determine the yield increase of oil reservoir, existing method is the experience according to constructor mostly, from a variety of yield increases Select a kind of to the corresponding volume increase exploitation of target reservoir progress.But this method influenceed by human factor it is bigger, can not Quantitatively the effect of different yield increases is accurately evaluated.Therefore, when it is implemented, error can be relatively Greatly, identified yield increase may not be the yield increase for being best suitable for target reservoir yet.
In summary, need at present it is a kind of can be relatively accurately according to the concrete condition of oil reservoir, with reference to different volume increase sides The implementation feature of formula, the method or apparatus of the preferable yield increase of effect is determined from a variety of yield increases.
The content of the invention
The application purpose is to provide a kind of determination method and apparatus of the yield increase of oil reservoir, can simply, exactly The yield increase of target reservoir being adapt to is determined, so as to reach preferable effect of increasing production.
This application provides a kind of determination method of the yield increase of oil reservoir, including:
Obtain the characteristics of reservoirs of target reservoir;
Obtain the characteristic parameter of each default yield increase in multiple default yield increases to be determined;
According to each default yield increase in the characteristics of reservoirs of the target reservoir and the multiple default yield increase Characteristic parameter, the oil increment of each default yield increase in the multiple default yield increase is determined respectively;
According to the oil increment of each default yield increase, determine to be applied to from the multiple default yield increase The yield increase of the target reservoir.
In one embodiment, the target reservoir includes fracture-pore reservoir.
In one embodiment, the characteristics of reservoirs of the target reservoir includes at least one of:Reservoir reserve, synthesis The compressed coefficient, oil density, the first oil volume factor, the second oil volume factor.
In one embodiment, the oil increment of each default yield increase in the multiple default yield increase is determined, Including:The oil increment of default yield increase is determined according to below equation:
In above formula, Δ NPiTo preset the oil increment of yield increase, ρoFor oil density, g is acceleration of gravity, hiIt is default The characteristic parameter of yield increase, CtFor system compressibility, N is reservoir reserve, BoiFor the first oil volume factor, BoFor second Oil volume factor.
In one embodiment, multiple default yield increases include at least one of:Increased production using oil pumper, utilized Electric submersible pump volume increase, utilize gaslift measure volume increase.
In one embodiment, in the case of in default yield increase to increase production using oil pumper, yield increase is preset Characteristic parameter be oil pumper pump barrel lower end depth;In the case where default yield increase is to be increased production using electric submersible pump, presets and increase The characteristic parameter of production mode is electric submersible pump pump intake lower end depth;It is situation about being increased production using gaslift measure in default yield increase Under, the characteristic parameter for presetting yield increase is gas lift valve lower end depth.
In one embodiment, according to the oil increment of each default yield increase, from the multiple default volume increase The yield increase applied to the target reservoir is determined in mode, including:
The oil increment of each default yield increase in more the multiple default yield increase, determine the maximum increasing oil of numerical value Yield increase of the corresponding default yield increase of amount as the target reservoir.
In one embodiment, after the yield increase of target reservoir is determined, methods described also includes:
According to the characteristic parameter of the yield increase of the target reservoir, the oil increment of the yield increase of the target reservoir, Establish the relation curve of target reservoir oil increment;
According to the relation curve of the target reservoir oil increment, volume increase exploitation is carried out to the target reservoir.
The application please also provide a kind of determining device of the yield increase of oil reservoir, including:
First acquisition module, for obtaining the characteristics of reservoirs of target reservoir;
Second acquisition module, for obtaining the feature of each default yield increase in multiple default yield increases to be determined Parameter;
First determining module, for each in the characteristics of reservoirs according to the target reservoir and the multiple default yield increase The characteristic parameter of individual default yield increase, the increasing oil of each default yield increase in the multiple default yield increase is determined respectively Amount;
Second determining module, for the oil increment according to each default yield increase, from the multiple default volume increase The yield increase applied to the target reservoir is determined in mode.
In one embodiment, described device also includes:Development module, for the volume increase side according to the target reservoir The characteristic parameter of formula, the target reservoir yield increase oil increment, establish the relation curve of target reservoir oil increment;According to The relation curve of the target reservoir oil increment, volume increase exploitation is carried out to the target reservoir.
The determination method and apparatus of the yield increase for the oil reservoir that the application provides, by taking into full account target reservoir geology feelings Condition and the implementation feature of different yield increases, are determined using the oil increment corresponding to different yield increases, and to increase oil respectively The foundation as quantitative assessment yield increase is measured, determines the yield increase of target reservoir.Therefore, can simply, accurately determine Go out to be suitable for the yield increase of target reservoir, so as to reach preferable effect of increasing production.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the application embodiment or technical scheme of the prior art Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only It is some embodiments described in the application, for those of ordinary skill in the art, is not paying creative labor On the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram of embodiment of the determination method of the yield increase for the oil reservoir that the application provides;
Fig. 2 is a kind of composition structural representation of embodiment of the determining device of the yield increase for the oil reservoir that the application provides Figure;
Fig. 3 is the determination side of the yield increase of the oil reservoir provided in a Sample Scenario using the application embodiment The schematic diagram of the characteristic parameter for the different yield increases that method/device obtains;
Fig. 4 is the determination side of the yield increase of the oil reservoir provided in a Sample Scenario using the application embodiment The schematic diagram of the oil increment for the different yield increases that method/device obtains;
Fig. 5 is the determination side of the yield increase of the oil reservoir provided in a Sample Scenario using the application embodiment The schematic diagram of the relation curve for the target reservoir oil increment that method/device obtains.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application The accompanying drawing in mode is applied, the technical scheme in the application embodiment is clearly and completely described, it is clear that described Embodiment is only a part of embodiment of the application, rather than whole embodiments.Based on the embodiment party in the application Formula, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all should When the scope for belonging to the application protection.
Specific quantitative assessment is usually not carried out to the effect of different yield increases in view of existing method, but root According to the experience of constructor, selected from a variety of yield increases and a kind of volume increase exploitation is carried out to target reservoir.Therefore, error can be relative More, identified yield increase may not be most suitably adapted for the yield increase of target reservoir sometimes.For the above situation, sheet Application considers that implementation feature of the target reservoir geological condition from different yield increases can be considered, introduces and predict different increasings Oil increment corresponding to production mode, and the foundation using oil increment as quantitative assessment yield increase, determine to be adapted to target reservoir Yield increase.Thus, it is possible to it is simple, accurately determine out the yield increase for being suitable for target reservoir, reach preferable volume increase Effect.
Based on one of above-mentioned innovative idea, this application provides a kind of determination method of the yield increase of oil reservoir.Specifically please A kind of method flow diagram of embodiment of the determination method of the yield increase of the oil reservoir provided refering to the application shown in Fig. 1. The determination method of the yield increase for the oil reservoir that the application embodiment provides, can specifically include herein below.
S11:Obtain the characteristics of reservoirs of target reservoir.
In one embodiment, above-mentioned target reservoir can be specifically fracture-pore reservoir.Wherein, above-mentioned fracture hole type oil Hide, also referred to as fractured-cavernous carbonate reservoir, can specifically refer to using large scale solution cavity, corrosion hole, crack and microcrack as Reservoir space, using crack and microcrack as flow channel, oil reservoir generally has extremely strong anisotropism, and oil reservoir is empty Between continuity it is poor (for example, with most a bite well control an oil reservoir feature) oil reservoir.When specifically exploiting this kind of oil reservoir, Due to the complexity of oil reservoir, cause that fracture-pore reservoir production decline is very fast, stable yields is more difficult.The process of exploitation generally can be First exhaustion exploitation is carried out by natural energy;After oil well stop-spraying, during yield reduction, oil pumper, electric submersible pump, gaslift can be used The yield increases such as measure carry out volume increase exploitation.
In the present embodiment, the yield increase of the oil reservoir provided due to the application determines that method is considered with fracture hole type oil Hide as representative, have:Oil reservoir internal connectivity is good, flow resistance is small, meets this kind of oil reservoir of the features such as constant volume feature Internal feature and withdrawal mechanism, therefore, the application embodiment provide oil reservoir yield increase determination method be applied to but It is not limited to fracture-pore reservoir.For other types but satisfaction:Oil reservoir internal connectivity is good, flow resistance is small, meets constant volume feature The features such as oil reservoir can also be applied.
In one embodiment, the characteristics of reservoirs of above-mentioned target reservoir can specifically include:Reservoir reserve, comprehensive compression Coefficient, oil density, the first oil volume factor, second oil volume factor etc..Certainly, it is necessary to which explanation, above-mentioned listed The supplemental characteristic of act is intended merely to that the application embodiment is better described, when it is implemented, can also as the case may be and Corresponding construction requirement, introduces characteristics of reservoirs of other data in addition to above-mentioned cited supplemental characteristic as target reservoir.Such as This, by features described above parameter, can reflect that the oil reservoir internal connectivity of fracture-pore reservoir is good, flow resistance is small, it is fixed to meet The features such as holding feature.
In the present embodiment, it is necessary to which explanation, above-mentioned system compressibility can specifically refer to meet target reservoir The geology pressure of region, the system compressibility of temperature conditionss.Above-mentioned first oil volume factor can specifically refer to full The oil volume factor of the initial formation condition in foot-eye oil reservoir region (i.e. without exploitation).Above-mentioned second crude oil volume system Number can specifically refer to meet that target reservoir region current formation condition (carries out exhaustion to open by natural energy Adopt) oil volume factor.
S13:Obtain the characteristic parameter of each default yield increase in multiple default yield increases to be determined.
In one embodiment, above-mentioned multiple default yield increases can specifically include at least one of:Using taking out Oil machine is increased production, is increased production using electric submersible pump, utilizes gaslift measure to increase production.When it is implemented, it can select above-mentioned as the case may be In two or three of yield increase as above-mentioned multiple default yield increases.Certainly, it is necessary to explanation, above-mentioned cited three Kind of yield increase is intended merely to that the application embodiment is better described, when it is implemented, as the case may be and can also apply Work requires mode of the selection in addition to above-mentioned cited yield increase as default yield increase.
In one embodiment, according to the implementation principle and construction characteristic of different yield increases, with reference to fracture-pore reservoir Recovery features, characteristic parameter of the different parameters as the yield increase can be selected according to different yield increases.Specifically , in the case where default yield increase is to be increased production using oil pumper, the characteristic parameter for presetting yield increase is oil pumper pump barrel Lower end depth;In the case where default yield increase is to be increased production using electric submersible pump, the characteristic parameter for presetting yield increase is latent for electricity Pump pump intake lower end depth;In the case where default yield increase is to increase production using gaslift measure, the feature of yield increase is preset Parameter is gas lift valve lower end depth.In this way, the feature of different yield increases can be preferably combined, accurately to different increasings The effect of production mode is predicted.
S15:According to each default volume increase side in the characteristics of reservoirs of the target reservoir and the multiple default yield increase The characteristic parameter of formula, the oil increment of each default yield increase in the multiple default yield increase is determined respectively.
In one embodiment, in order to determine the oil increment of each default yield increase respectively, when it is implemented, can be with According to the characteristics of reservoirs of above-mentioned target reservoir, and the characteristic parameter of the default yield increase, according to below equation, it is determined that specifically Oil increment:
In above formula, Δ NPiTo preset the oil increment of yield increase, ρoFor oil density, g is acceleration of gravity, hiIt is default The characteristic parameter of yield increase, CtFor system compressibility, N is reservoir reserve, BoiFor the first oil volume factor, BoFor second Oil volume factor.
In the present embodiment, it is necessary to which explanation, the increasing that oil pumper increased production is being determined the use of using above formula During oil mass, above-mentioned default yield increase is increases production using oil pumper, corresponding, the h in above formulaiTo utilize the spy of oil pumper volume increase Parameter, i.e. oil pumper pump barrel lower end depth are levied, h can be designated as1, it is corresponding determined by oil increment can be designated as Δ NP1.In profit When determining the use of the oil increment that electric submersible pump is increased production with above formula, above-mentioned default yield increase is to be increased production using electric submersible pump, It is corresponding, the h in above formulaiFor using the characteristic parameter of electric submersible pump volume increase, i.e. electric submersible pump pump intake lower end depth, h can be designated as2, Oil increment determined by corresponding can be designated as Δ NP2.The increasing oil that gaslift measure increased production is being determined the use of using above formula During amount, above-mentioned default yield increase is to be increased production using gaslift measure, corresponding, the h in above formulaiTo utilize gaslift measure volume increase Characteristic parameter, i.e. gas lift valve lower end depth, can be designated as h3, it is corresponding determined by oil increment can be designated as Δ NP3.In this way, can So that according to the characteristics of different yield increases, the feature of combining target oil reservoir determines the oil increment corresponding to different yield increases.
In the present embodiment, it is necessary to supplement, according to determining that the process of the oil increment of yield increase is appreciated that The characteristics of different yield increase, and the feature of objectives oil reservoir is combined, to being increased production using different yield increases, obtain Corresponding effect, i.e., corresponding to oil increment be predicted.So as to subsequently can according to the oil increment corresponding to different yield increases, The effect of different yield increases uniformly, objectively evaluate, so as to accurately determine out the volume increase of suitable target reservoir Mode.
S17:According to the oil increment of each default yield increase, being determined from the multiple default yield increase should Yield increase for the target reservoir.
In one embodiment, the above-mentioned oil increment according to each default yield increase, preset from the multiple Determine that the yield increase applied to the target reservoir can specifically include in yield increase:More the multiple default volume increase The oil increment of each default yield increase in mode, determine the default yield increase corresponding to the maximum oil increment of numerical value as institute State the yield increase of target reservoir.Specifically, for example, by it was found that, using oil pumper volume increase oil increment be more than utilize The oil increment of electric submersible pump volume increase, and utilize the oil increment of electric submersible pump volume increase to be more than the oil increment for utilizing gaslift measure volume increase, i.e., Oil increment using oil pumper volume increase is maximum.And then may determine that for the target reservoir, it is default to increase production this using oil pumper The prediction effect that yield increase is increased production is relatively best, can will increase production this default yield increase using oil pumper and be defined as The yield increase of target reservoir, and specific volume increase construction is carried out to target reservoir using the yield increase of the target reservoir.
In the present embodiment, it is necessary to explanation, by according to the characteristics of different yield increases and objectives oil reservoir Feature, the oil increments of different yield increases is calculated respectively, so as to determine the effect of increasing production of different yield increases The prediction of amount.And then can be objective, accurately determine out using the oil increment of different yield increases as Appreciation gist, for tool The target reservoir of body, any yield increase oil increasing effect are optimal.It is thus possible to determine to be suitable for the volume increase side of target reservoir Formula, to carry out volume increase exploitation to target reservoir, reach preferable effect of increasing production.
In the application embodiment, compared to existing method, by take into full account target reservoir geological condition from it is different The implementation feature of yield increase, introduce and determine respectively using the oil increment corresponding to different yield increases, and with oil increment As the foundation of quantitative assessment yield increase, determine to be suitable for the yield increase of target reservoir.Therefore, can simply, accurately Ground is determined to be suitable for the yield increase of target reservoir, so as to reach preferable effect of increasing production.
In one embodiment, after the yield increase of target reservoir is determined, methods described also includes herein below.
S1:According to the characteristic parameter of the yield increase of the target reservoir, the increasing oil of the yield increase of the target reservoir Amount, establish the relation curve of target reservoir oil increment.
S2:According to the relation curve of the target reservoir oil increment, volume increase exploitation is carried out to the target reservoir.
In the present embodiment, the relation curve of above-mentioned target reservoir increment can be specifically target reservoir yield increase The relation curve of characteristic parameter and corresponding oil increment.When it is implemented, it can be made with the relation curve of target reservoir oil increment For foundation, the preferable characteristic parameter of Selection effect, and according to this feature parameter by the yield increase of target reservoir to target oil Tibetan carries out volume increase exploitation.In this way, relatively good effect of increasing production can be obtained.
As can be seen from the above description, the determination method of the yield increase for the oil reservoir that the application provides, by abundant Consider implementation feature of the target reservoir geological condition from different yield increases, introduce and determine to apply different yield increases respectively Corresponding oil increment, and the foundation using oil increment as quantitative assessment yield increase, determine to be suitable for the increasing of target reservoir Production mode.Therefore, can simply, accurately determine out the yield increase for being suitable for target reservoir, so as to reach preferable volume increase Effect;Further through the relation curve for establishing target reservoir oil increment, and according to the relation curve, volume increase is carried out to target reservoir and opened Hair, improves effect of increasing production.
Based on same inventive concept, present invention also provides a kind of determining device of the yield increase of oil reservoir, as following Described in embodiment.It is similar to the determination method of the yield increase of oil reservoir to solve the principle of problem due to device, therefore, oil reservoir The implementation of the determining device of yield increase may refer to the implementation of the determination method of the yield increase of oil reservoir, and it is no longer superfluous to repeat part State.Used below, term " unit " or " module " can realize the combination of the software and/or hardware of predetermined function.To the greatest extent Device described by pipe implementation below is preferably realized with software, but hardware, or the combination of software and hardware Realize to be also what may and be contemplated.Refer to the determining device of the yield increase for the oil reservoir that the application shown in Fig. 2 provides A kind of composition structural representation of embodiment.The device can specifically include:First acquisition module 21, the second acquisition module 23rd, the first determining module 25, the second determining module 27, the structure is specifically described below.
First acquisition module 21, it specifically can be used for the characteristics of reservoirs for obtaining target reservoir.
Second acquisition module 23, it specifically can be used for obtaining each default volume increase in multiple default yield increases to be determined The characteristic parameter of mode.
First determining module 25, it specifically can be used for the characteristics of reservoirs according to the target reservoir and the multiple default increasing The characteristic parameter of each default yield increase in production mode, each default volume increase in the multiple default yield increase is determined respectively The oil increment of mode.
Second determining module 27, it specifically can be used for the oil increment according to each default yield increase, from described more The yield increase applied to the target reservoir is determined in individual default yield increase.
In one embodiment, described device can also specifically include:Development module, specifically it can be used for according to The characteristic parameter of the yield increase of target reservoir, the target reservoir yield increase oil increment, establish target reservoir increase oil The relation curve of amount;According to the relation curve of the target reservoir oil increment, volume increase exploitation is carried out to the target reservoir.
In one embodiment, the target reservoir can specifically include but is not limited to fracture-pore reservoir.
In one embodiment, the characteristics of reservoirs of the target reservoir can specifically include at least one of:Oil reservoir Reserves, system compressibility, oil density, the first oil volume factor, second oil volume factor etc..
In one embodiment, first determining module 25 according to below equation when it is implemented, can determine pre- If the oil increment of yield increase:
In above formula, Δ NPiTo preset the oil increment of yield increase, ρoFor oil density, g is acceleration of gravity, hiIt is default The characteristic parameter of yield increase, CtFor system compressibility, N is reservoir reserve, BoiFor the first oil volume factor, BoFor second Oil volume factor.
In one embodiment, the multiple default yield increase can specifically include at least one of:Using taking out Oil machine is increased production, increased production using electric submersible pump, utilizing gaslift measure volume increase etc..
In one embodiment, when it is implemented, in the case where default yield increase is to be increased production using oil pumper, in advance If the characteristic parameter of yield increase is specifically as follows oil pumper pump barrel lower end depth;It is to be increased using electric submersible pump in default yield increase In the case of production, the characteristic parameter of default yield increase is specifically as follows electric submersible pump pump intake lower end depth;In default volume increase side Formula is in the case of being increased production using gaslift measure, and the characteristic parameter of default yield increase is specifically as follows gas lift valve lower end depth.
In one embodiment, second determining module 27 specifically can in such a way, from the multiple pre- If the yield increase applied to the target reservoir is determined in yield increase:Oil increment will be stated in multiple default yield increases most Big default yield increase is as the yield increase applied to the target reservoir.
Each embodiment in this specification is described by the way of progressive, identical similar between each embodiment Part mutually referring to what each embodiment stressed is the difference with other embodiment.Especially, it is right For system embodiment, because it is substantially similar to method embodiment, so description is fairly simple, related part is joined The part explanation of square method embodiment.
It should be noted that system, device, module or unit that above-mentioned embodiment illustrates, specifically can be by computer Chip or entity are realized, or are realized by the product with certain function.For convenience of description, in this manual, retouch It is divided into unit when stating apparatus above with function to describe respectively.Certainly, can be the function of each unit when implementing the application Realized in same or multiple softwares and/or hardware.
In addition, in this manual, adjective can be only used for an element or dynamic such as first and second Make to make a distinction with another element or action, without requiring or implying any actual this relation or order.Permit in environment Perhaps in the case of, be should not be interpreted as limited to reference to element or part or step (s) in only element, part or step one It is individual, and can be one or more of element, part or step etc..
As can be seen from the above description, the determining device of the yield increase for the oil reservoir that the application provides, passes through first Determining module and the second determining module have taken into full account implementation feature of the target reservoir geological condition from different yield increases, introduce And determine respectively using the oil increment corresponding to different yield increases, and using oil increment as quantitative assessment yield increase according to According to determining to be suitable for the yield increase of target reservoir.Therefore, can simply, accurately determine out and be suitable for target reservoir Yield increase, so as to reach preferable effect of increasing production;The relation curve of target reservoir oil increment is established further through development module, and According to the relation curve, volume increase exploitation is carried out to target reservoir, improves effect of increasing production.
In a specific implement scene, the determination method and dress of the yield increase of the oil reservoir provided using the application Put, the yield increase of the fracture-pore reservoir in certain region specifically evaluate and select.Specific implementation process can refer to Lower content.
S1:Determine oil reservoir underlying parameter (i.e. the characteristics of reservoirs of target reservoir).
In the present embodiment, when it is implemented, can be studied according to reservoir engineering, fracture-pore reservoir reserves N, comprehensive is determined Close compressed coefficient CtAnd the parameter such as oil density parameter, the characteristic parameter as above-mentioned oil reservoir.Wherein, specifically, can obtain Following parameter:The crude oil reserve N of fracture-pore reservoir is 50 × 104T, system compressibility CtFor 0.001 × 10-6Pa-1, underground it is former Oil density ρ is 850Kg/m3, oil volume factor (i.e. the first oil volume factor) B under the conditions of prime stratumoiFor 1.5, at present Oil volume factor B under formation conditiono(i.e. the second oil volume factor) is 1.2.
S2:Determine oil production method (i.e. default yield increase).
In the present embodiment, according to oil reservoir situation, it is determined that intending the oil production method used:Oil pumper, electric submersible pump, or gaslift (determine multiple default yield increases:Increased production using oil pumper, increased production using electric submersible pump, increased production using gaslift measure).
S3:Determine key process parameter (characteristic parameter of i.e. default yield increase).
In the present embodiment, according to identified oil production method, it is determined that corresponding key process parameter.Specifically, adopt When oily mode is oil pumper, oil pumper barrel lower end depth h1(joined for key process parameter using the feature of oil pumper volume increase Number);When oil production method is electric submersible pump, electric submersible pump pump intake lower end depth h is determined2It is (latent i.e. using electricity for key process parameter The characteristic parameter of pump volume increase);When oil production method is gaslift, bottom gas lift valve depth h is determined3For key process parameter (i.e. The characteristic parameter increased production using gaslift measure).It can specifically refer to real using the application in a Sample Scenario shown in Fig. 3 The signal of the characteristic parameter for the different yield increases that the determination method, device of the yield increase for the oil reservoir that the mode of applying provides obtains Figure.
S4:Calculate analysis oil increment (oil increment for determining each default yield increase in multiple default yield increases).
In the present embodiment, the feature of fracture-pore reservoir is considered:Reservoir internal access is had friendly relations, fluid flow resistance is small, is adopted Analyzed with material balance principle, and then can be according to the key determined in the oil reservoir underlying parameter and S103 determined in S101 Technological parameter, oil machine, electric submersible pump and the oil increment of gaslift measure are calculated, can specifically be handled according to below equation:
In above formula, Δ NPFor oil increment, unit 104t;ρoFor oil density under formation condition, unit Kg/m3;G is Acceleration of gravity, unit N/Kg;hiFor key process parameter, (corresponding when i takes 1 is oil pumper, when i takes 2 for i=1,2,3 When it is corresponding be electric submersible pump, corresponding when i takes 3 is gaslift), unit m;CtFor system compressibility under formation condition (i.e. System compressibility), unit Pa–1;N is fracture-pore reservoir reserves, unit 104t;BoiFor crude oil body under the conditions of prime stratum Product coefficient (i.e. the first oil volume factor);BoFor (i.e. the second crude oil volume system of oil volume factor under current formation condition Number).
S5:The oil production method for determining specifically to use according to oil increment.
In the present embodiment, implement specifically, can refer to shown in Fig. 4 in a Sample Scenario using the application The schematic diagram of the oil increment for the different yield increases that the determination method, device of the yield increase for the oil reservoir that mode provides obtains, with And the determination method of the yield increase of the oil reservoir provided in a Sample Scenario using the application embodiment shown in Fig. 5/ The schematic diagram of the oil increment relation curve for the target reservoir that device obtains, is performed in such a way.Wherein, Fig. 5 ordinate h The characteristic parameter of the yield increase applied to target reservoir can be specifically represented, abscissa can specifically represent different yield increases Characteristic parameter corresponding to oil increment.
S5-1:With reference to formula (1), a series of key process parameter h and oil increment relation curve (i.e. target reservoir are calculated Oil increment relation curve).
S5-2:According to the key technological parameter h being calculated and oil increment relation curve, it is determined that the increasing oil of corresponding oil production method Amount.And the oil reservoir in the region is specifically exploited according to the curve.
Specifically, for example key process parameter and oil increment relation curve are calculated, determines the region with reference to formula (1) Oil production method (i.e. the yield increase of target reservoir) is electric submersible pump, according to above-mentioned relation curve, determines electric submersible pump pump intake lower end Depth h2Corresponding for 3500m, the oil increment of electric submersible pumping is 1.82 × 104t.And then can be with the supplemental characteristic of above-mentioned determination As guidance, specific volume increase exploitation is carried out to the region oil reservoir.
By above-mentioned Sample Scenario, the determination method and apparatus of the yield increase of the oil reservoir of the application offer are demonstrated, By taking into full account implementation feature of the target reservoir geological condition from different yield increases, introduce and determine respectively using difference Oil increment corresponding to yield increase, and the foundation using oil increment as quantitative assessment yield increase, determine to be suitable for target The yield increase of oil reservoir.Really can simply, accurately determine out the yield increase for being suitable for target reservoir, reach preferable increasing Produce effect.
It should be noted that although mentioning different embodiments in teachings herein, still, the application not office It is limited to be professional standard or the situation described by embodiment etc., some professional standards or uses self-defined mode or reality Embodiment amended slightly can also realize that above-mentioned embodiment is identical, equivalent or phase on the practice processes that the mode of applying describes The implementation result closely or after deformation being anticipated that.Using the data acquisition after these modifications or deformation, processing, output, judgment mode Deng embodiment, still may belong within the scope of the optional embodiment of the application.
Although this application provides the method operating procedure as described in embodiment or flow chart, routine or nothing are based on Creative means can include more or less operating procedures.The step of being enumerated in embodiment order is only numerous A kind of mode in step execution sequence, does not represent unique execution sequence.Device or client production in practice performs When, can according to embodiment either method shown in the drawings order perform or it is parallel perform (such as parallel processor or The environment of multiple threads, even distributed data processing environment).Term " comprising ", "comprising" or its any other change Body is intended to including for nonexcludability, so that process, method, product or equipment including a series of elements are not only wrapped Those key elements, but also the other element including being not expressly set out are included, or is also included for this process, method, product Or the key element that equipment is intrinsic.In the absence of more restrictions, it is not precluded from the process including the key element, side Other identical or equivalent elements in method, product or equipment also be present.
Device that above-mentioned embodiment illustrates or module etc., it can specifically be realized by computer chip or entity, Huo Zheyou Product with certain function is realized.For convenience of description, modules difference is divided into function when describing apparatus above Description.Certainly, the function of each module can be realized in same or multiple softwares and/or hardware when implementing the application, The module for realizing same function can also be realized by the combination of multiple submodule etc..Device embodiments described above are only It is only illustrative, for example, the division of the module, only a kind of division of logic function, can have in addition when actually realizing Dividing mode, such as multiple module or components can combine or be desirably integrated into another system, or some features can be with Ignore, or do not perform.
In addition, it is also known in the art that except realized in a manner of pure computer readable program code controller with Outside, completely can be by the way that above method step be carried out into programming in logic come controller with gate, switch, special integrated electricity The form of road, programmable logic controller (PLC) and embedded microcontroller etc. realizes identical function.Therefore this controller can be by It is considered a kind of hardware component, and what its inside was included is used to realize that the device of each function can also to be considered as in hardware component Structure.Or even, can by for realize the device of each function be considered as not only can be implementation method software module but also It can be the structure in hardware component.
The application can be described in the general context of computer executable instructions, such as program Module.Usually, program module includes performing particular task or realizes routine, program, object, the group of particular abstract data type Part, data structure, class etc..The application can also be put into practice in a distributed computing environment, in these DCEs, By performing task by communication network and connected remote processing devices.In a distributed computing environment, program module can With in the local and remote computer-readable storage medium including storage device.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can Realized by the mode of software plus required general hardware platform.Based on such understanding, the technical scheme essence of the application On the part that is contributed in other words to prior art can be embodied in the form of software product, the computer software product It can be stored in storage medium, such as ROM/RAM, magnetic disc, CD, including some instructions are causing a computer equipment (can be personal computer, mobile terminal, server, either network equipment etc.) perform each embodiment of the application or reality Apply the method described in some parts of mode.
Each embodiment in this specification is described by the way of progressive, same or similar between each embodiment Part mutually referring to what each embodiment stressed is the difference with other embodiment.The application Available in numerous general or special purpose computing system environments or configuration.Such as:Personal computer, server computer, hand It is holding equipment or portable set, laptop device, multicomputer system, the system based on microprocessor, set top box, programmable Electronic equipment, network PC, minicom, mainframe computer include the DCE of any of the above system or equipment Etc..
Although having passed through multiple different embodiments depicts the application, it will be appreciated by the skilled addressee that the application Can have many deformations and change, but without departing from spirit herein, it is desirable to appended different embodiments it is included these Deformation and change do not depart from the scope that the application is protected.

Claims (10)

  1. A kind of 1. determination method of the yield increase of oil reservoir, it is characterised in that including:
    Obtain the characteristics of reservoirs of target reservoir;
    Obtain the characteristic parameter of each default yield increase in multiple default yield increases to be determined;
    According to the feature of each default yield increase in the characteristics of reservoirs of the target reservoir and the multiple default yield increase Parameter, the oil increment of each default yield increase in the multiple default yield increase is determined respectively;
    According to the oil increment of each default yield increase, determined from the multiple default yield increase applied to described The yield increase of target reservoir.
  2. 2. according to the method for claim 1, it is characterised in that the target reservoir includes fracture-pore reservoir.
  3. 3. according to the method for claim 1, it is characterised in that the characteristics of reservoirs of the target reservoir include it is following at least it One:Reservoir reserve, system compressibility, oil density, the first oil volume factor, the second oil volume factor.
  4. 4. according to the method for claim 3, it is characterised in that determine each default increasing in the multiple default yield increase The oil increment of production mode, including:The oil increment of default yield increase is determined according to below equation:
    <mrow> <msub> <mi>&amp;Delta;N</mi> <mrow> <mi>P</mi> <mi>i</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>&amp;rho;</mi> <mi>o</mi> </msub> <msub> <mi>gh</mi> <mi>i</mi> </msub> <msub> <mi>C</mi> <mi>t</mi> </msub> <mi>N</mi> <mfrac> <msub> <mi>B</mi> <mrow> <mi>o</mi> <mi>i</mi> </mrow> </msub> <msub> <mi>B</mi> <mi>o</mi> </msub> </mfrac> </mrow>
    In above formula, Δ NPiTo preset the oil increment of yield increase, ρoFor oil density, g is acceleration of gravity, hiFor default volume increase The characteristic parameter of mode, CtFor system compressibility, N is reservoir reserve, BoiFor the first oil volume factor, BoFor the second crude oil Volume factor.
  5. 5. according to the method for claim 1, it is characterised in that multiple default yield increases include at least one of:Profit Increased production with oil pumper, increased production using electric submersible pump, increased production using gaslift measure.
  6. 6. according to the method for claim 5, it is characterised in that be situation about being increased production using oil pumper in default yield increase Under, the characteristic parameter for presetting yield increase is oil pumper pump barrel lower end depth;It is to be increased production using electric submersible pump in default yield increase In the case of, the characteristic parameter for presetting yield increase is electric submersible pump pump intake lower end depth;It is to utilize gas in default yield increase In the case that volume increase is applied in behave, the characteristic parameter for presetting yield increase is gas lift valve lower end depth.
  7. 7. according to the method for claim 1, it is characterised in that determine to be applied to from the multiple default yield increase The yield increase of the target reservoir, including:
    The default yield increase of oil increment maximum in multiple default yield increases will be stated as the increasing applied to the target reservoir Production mode.
  8. 8. according to the method for claim 1, it is characterised in that after the yield increase of target reservoir is determined, the side Method also includes:
    According to the characteristic parameter of the yield increase of the target reservoir, the oil increment of the yield increase of the target reservoir, establish The relation curve of target reservoir oil increment;
    According to the relation curve of the target reservoir oil increment, volume increase exploitation is carried out to the target reservoir.
  9. A kind of 9. determining device of the yield increase of oil reservoir, it is characterised in that including:
    First acquisition module, for obtaining the characteristics of reservoirs of target reservoir;
    Second acquisition module, the feature for obtaining each default yield increase in multiple default yield increases to be determined are joined Number;
    First determining module, for each pre- in the characteristics of reservoirs according to the target reservoir and the multiple default yield increase If the characteristic parameter of yield increase, the oil increment of each default yield increase in the multiple default yield increase is determined respectively;
    Second determining module, for the oil increment according to each default yield increase, from the multiple default yield increase In determine yield increase applied to the target reservoir.
  10. 10. device according to claim 9, it is characterised in that described device also includes:Development module, for according to institute State the characteristic parameter of the yield increase of target reservoir, the target reservoir yield increase oil increment, establish target reservoir increasing The relation curve of oil mass;According to the relation curve of the target reservoir oil increment, volume increase exploitation is carried out to the target reservoir.
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