CN106150491A - The exploitation method of a kind of oil reservoir and device - Google Patents

Abstract

The present invention provides exploitation method and the device of a kind of oil reservoir, first the actual percent inspiration of each oil reservoir in oil reservoir is obtained, then the theoretical percent inspiration of described each oil reservoir is obtained, ask for the absolute value of the actual percent inspiration of described each oil reservoir and the difference of the theoretical percent inspiration of described each oil reservoir again, the absolute value of described difference is obtained ratio compared with the actual percent inspiration of described each oil reservoir, finally according to described ratio, the injection well in oil reservoir is carried out profile control, the producing well in oil reservoir is carried out envelope and alters.The exploitation method of oil recovery oil reservoir of the present invention and device can instruct actual production, reduce workload, reduce expense and put into, improve working performance.

Description

The exploitation method of a kind of oil reservoir and device

Technical field

The present invention relates to technical field of petroleum extraction, be specifically related to exploitation method and the device of a kind of oil reservoir.

Background technology

Combustion in situ is that viscous crude converts a kind of mode of very attractive in development scheme, and the air resource that it is utilized is rich Richness, less input, modifies heating in crude oil simultaneously due to it on the spot, substantially increase the mobility of viscous crude in production process, due to Injected media is air, greatly reduces the workload that the surface water processes in production process.Currently for combustion in situ oil recovery state Inside and outside all expand application scale.

Fireflood development scheme is mainly monolayer fireflood, and multilamellar fireflood application scale is less.Multilamellar fireflood is due to multiple oil reservoirs Employing simultaneously, need the development degree of layer position, therefore, this process needs to monitor the getter capacity of oil reservoir.Field monitoring oil The getter capacity mode of layer mainly applies the test of gas entry profile.The test steel wire to be used of gas entry profile removes the test of down-hole Instrument, test instrunment mostly is the single-chip microcomputer microcomputer gathering and storing data, after instrument to be tested takes out, at ground host machine Playback, has explained the test of gas entry profile.

But owing to test instrunment is relatively small, when the borehole wall is rough or has dead oil, test instrunment is easily hampered, under not In designated layer position, it is impossible to complete the test of whole well section.Meanwhile, test fee and test job amount are relatively big, deposit for field operation In funds and the impact of time, this is the most not yet proposed effective solution.

Summary of the invention

The purpose of the embodiment of the present invention is to provide exploitation method and the device of a kind of oil reservoir, the oil reservoir of the oil recovery present invention Exploitation method and device can instruct actual production, reduce workload, reduce expense and put into, improve working performance.

The above-mentioned purpose of the present invention can use following technical proposal to realize:

The present invention provides the exploitation method of a kind of oil reservoir, including:

Obtain the actual percent inspiration of each oil reservoir in oil reservoir；

Obtain the theoretical percent inspiration of described each oil reservoir；

Ask for the actual percent inspiration of described each oil reservoir and the exhausted of the difference of the theoretical percent inspiration of described each oil reservoir To value；

The absolute value of described difference is obtained ratio compared with the actual percent inspiration of described each oil reservoir；

According to described ratio, the injection well in oil reservoir is carried out profile control, the producing well in oil reservoir is carried out envelope and alters.

In one embodiment, the actual percent inspiration of described each oil reservoir is actual inspiration capacity and the injection of each oil reservoir The ratio of total gas injection rate of well.

In one embodiment, according to the theoretical percent inspiration of the below equation described each oil reservoir of calculating:

${\mathrm{\θ}}_i=\frac{(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})}{{\Σ}_{i=1}^m(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})};$

Wherein, θ_iRepresent the theoretical percent inspiration of i-th oil reservoir；M represents oil reservoir number；y_1iRepresent i-th oil reservoir 1st reservoir parameter；y_2iRepresent the 2nd reservoir parameter of i-th oil reservoir；y_niIt is expressed as the n-th oil reservoir ginseng of i-th oil reservoir Number；Represent the weight correction value of the 1st reservoir parameter of i-th oil reservoir；Represent the 2nd oil reservoir ginseng of i-th oil reservoir The weight correction value of number；It is expressed as the weight correction value of the n-th reservoir parameter of i-th oil reservoir.

In one embodiment, according to the below equation described weight correction value of calculating:

$\∂y_{ji}=(y_{ji}-\stackrel{\‾}{y_{ji}})(a_j-\frac{1}{n})\×n;$

Wherein,Represent the weight correction value of the jth reservoir parameter of i-th oil reservoir；y_jiRepresent the jth of i-th oil reservoir Individual reservoir parameter, i takes the positive integer in 1 to m, and j takes the positive integer in 1 to n；N represents the number of reservoir parameter,Represent i-th The meansigma methods of the jth reservoir parameter of individual oil reservoir, a_jRepresent the weight of jth reservoir parameter.

In one embodiment, the number of described reservoir parameter is 4.

In one embodiment, 4 reservoir parameters are respectively as follows: the degree of depth of oil reservoir, thickness, porosity and permeability.

In one embodiment, according to described ratio, the injection well in oil reservoir is carried out profile control, to the production in oil reservoir Well carries out envelope and alters, including:

When described ratio is more than 50%, and the live wire of fireflood oil reservoir is away from injecting well less than injecting well and the spacing of producing well 1/3 time, described injection well is carried out profile control；

When described ratio is more than 50%, and the live wire of fireflood oil reservoir is away from injecting well more than injecting well and the spacing of producing well 1/3 time, described producing well is carried out envelope and alters.

It addition, the present invention also provides for the exploration device of a kind of oil reservoir, it includes:

First acquisition module, is configured to obtain the actual percent inspiration of each oil reservoir in oil reservoir；

Second acquisition module, is configured to obtain the theoretical percent inspiration of described each oil reservoir；

First analyzes module, is configured to the theory of actual percent inspiration and the described each oil reservoir asking for described each oil reservoir The absolute value of the difference of percent inspiration；

Second analyzes module, is configured to the actual percent inspiration phase of the absolute value of described difference with described each oil reservoir Ratio obtains ratio；

Adjustment module, is configured to the injection well in oil reservoir be carried out profile control, to the production in oil reservoir according to described ratio Well carries out envelope and alters.

In one embodiment, according to the theoretical percent inspiration of the below equation described each oil reservoir of calculating:

${\mathrm{\θ}}_i=\frac{(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})}{{\Σ}_{i=1}^m(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})};$

Wherein, θ_iRepresent the theoretical percent inspiration of i-th oil reservoir；M represents oil reservoir number；y_1iRepresent i-th oil reservoir 1st reservoir parameter；y_2iRepresent the 2nd reservoir parameter of i-th oil reservoir；y_niIt is expressed as the n-th oil reservoir ginseng of i-th oil reservoir Number；Represent the weight correction value of the 1st reservoir parameter of i-th oil reservoir；Represent the 2nd oil reservoir ginseng of i-th oil reservoir The weight correction value of number；It is expressed as the weight correction value of the n-th reservoir parameter of i-th oil reservoir.

In sum, first the present invention obtains the actual percent inspiration of each oil reservoir in oil reservoir, then obtains described each oil The theoretical percent inspiration of layer, then ask for the actual percent inspiration of described each oil reservoir and the theoretical air-breathing percentage of described each oil reservoir The absolute value of the difference of ratio, obtains ratio by the absolute value of described difference compared with the actual percent inspiration of described each oil reservoir； Finally can instruct actual production according to this ratio.

Accompanying drawing explanation

Accompanying drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention by any way Enclose.It addition, the shape of each parts in figure and proportional sizes etc. are only schematically, it is adapted to assist in the understanding of the present invention, and It not shape and the proportional sizes specifically limiting each parts of the present invention.Those skilled in the art under the teachings of the present invention, can To select various possible shape and proportional sizes to implement the present invention as the case may be.

Fig. 1 shows the flow chart of the exploitation method of oil reservoir of the present invention；

Fig. 2 shows the module map of the exploration device of oil reservoir of the present invention.

Detailed description of the invention

In conjunction with accompanying drawing and the description of the specific embodiment of the invention, it is possible to clearly understand the details of the present invention.But It is, the detailed description of the invention of invention described herein to be only used for explaining the purpose of the present invention, and can not understand by any way One-tenth is limitation of the present invention.Under the teachings of the present invention, technical staff is it is contemplated that the most possible change of based on the present invention Shape, these are regarded as belonging to the scope of the present invention.

As it is shown in figure 1, the present invention provides the exploitation method of a kind of oil reservoir, comprise the steps:

S1: obtain the actual percent inspiration of each oil reservoir in oil reservoir；

S2: obtain the theoretical percent inspiration of described each oil reservoir；

S3: ask for the actual percent inspiration of the described each oil reservoir difference with the theoretical percent inspiration of described each oil reservoir Absolute value；

S4: the absolute value of described difference is obtained ratio compared with the actual percent inspiration of described each oil reservoir；

S5: the injection well in oil reservoir is carried out profile control according to described ratio, carries out envelope to the producing well in oil reservoir and alters.

In the above-described embodiment, the actual percent inspiration of each oil reservoir in oil reservoir is first obtained.Wherein, each oil in oil reservoir The actual inspiration capacity that actual percent inspiration is each oil reservoir of layer and the ratio of total gas injection rate of injection well.Then obtain described respectively The theoretical percent inspiration of oil reservoir.Ask for the actual percent inspiration of described each oil reservoir and the theoretical air-breathing hundred of described each oil reservoir again The absolute value of the difference of proportion by subtraction, is compared the absolute value of described difference compared with the actual percent inspiration of described each oil reservoir Value；Finally according to described ratio, the injection well in oil reservoir is carried out profile control, the producing well in oil reservoir is carried out envelope and alters.

Specifically, described ratio is more than 50%, and the live wire of fireflood oil reservoir away from inject well less than inject well and producing well it The 1/3 of spacing, carries out profile control to described injection well.Described ratio is more than 50%, and the live wire of fireflood oil reservoir is big away from injecting well In the 1/3 of the spacing injecting well and producing well, described producing well is carried out envelope and alters.

The present invention utilizes existing reservoir parameter value to analyze the theoretical percent inspiration of Multi-level Fire oil reservoirs, then calculates each oil The absolute value of the difference of the theoretical percent inspiration of actual percent inspiration and each oil reservoir of layer, by the absolute value of described difference with The actual percent inspiration of described each oil reservoir is compared and is obtained ratio, utilizes this ratio can instruct actual production, reduces workload, Reduction expense puts into, and improves working performance.

In one embodiment, according to the theoretical percent inspiration of the below equation described each oil reservoir of calculating:

${\mathrm{\θ}}_i=\frac{(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})}{{\Σ}_{i=1}^m(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})};$

Wherein, θ_iRepresent the theoretical percent inspiration of i-th oil reservoir；M represents oil reservoir number；y_1iRepresent i-th oil reservoir 1st reservoir parameter；y_2iRepresent the 2nd reservoir parameter of i-th oil reservoir；y_niIt is expressed as the n-th oil reservoir ginseng of i-th oil reservoir Number；Represent the weight correction value of the 1st reservoir parameter of i-th oil reservoir；Represent the 2nd oil reservoir ginseng of i-th oil reservoir The weight correction value of number；It is expressed as the weight correction value of the n-th reservoir parameter of i-th oil reservoir.

Specifically, if n=4, the 1st reservoir parameter is the degree of depth of oil reservoir, and the 2nd reservoir parameter is the thickness of oil reservoir, the 3rd Individual reservoir parameter is porosity, and the 4th reservoir parameter is permeability.Then y_1iRepresent the reservoir depth of i-th oil reservoir；y_2iRepresent The thickness of i-th oil reservoir；y_3iRepresent the porosity of i-th oil reservoir；y_4iRepresent the permeability of i-th oil reservoir；Represent i-th The weight correction value of the reservoir depth of oil reservoir；Represent the weight correction value of the thickness of i-th oil reservoir；Represent i-th oil The weight correction value of the porosity of layer；Represent the weight correction value of the permeability of i-th oil reservoir.

Described weight correction value is:

Wherein,Represent the weight correction value of the jth reservoir parameter of i-th oil reservoir；y_jiRepresent the of i-th oil reservoir J reservoir parameter, i takes the positive integer in 1 to m, and j takes the positive integer in 1 to n；N represents the number of reservoir parameter,Represent i-th The meansigma methods of the jth reservoir parameter of individual oil reservoir, a_jRepresent the weight of jth reservoir parameter.

In one embodiment, the number of reservoir parameter is 4, say, that n=4, j value can be 1,2,3,4.This 4 reservoir parameters are respectively as follows: the degree of depth of oil reservoir, thickness, porosity and permeability.Certainly those skilled in the art obviously may be used Knowing, the choosing of reservoir parameter can be actually needed selected according to production.

Wherein, the weight of reservoir parameter can be asked for according to following equation:

(1) target sequence and analytical sequence are chosen:

$\begin{array}{c}{\stackrel{\→}{y}}_0=\left(y_0\right(1),y_0(2),\mathrm{...},y_0(m\left)\right);\\ {\stackrel{\→}{y}}_1=\left(y_1\right(1),y_1(2),\mathrm{...},y_1(m\left)\right);\\ \mathrm{......}\\ {\stackrel{\→}{y}}_j=\left(y_j\right(1),y_j(2),\mathrm{...},y_j(m\left)\right);\end{array}$

In formula,It is expressed as target sequence；It is expressed as comparative sequences；M is expressed as sequence length；J value is in 1 to n Positive integer, n is expressed as the number of comparative sequences.

(2) according to formulaThe target sequence chosen and analytical sequence are made at nondimensionalization Reason；Wherein, x_bK () is expressed as y_bThe nondimensionalization numerical value of (k)；y_bK () is expressed as in step 1Interior any number；B value It it is the positive integer in 0 to 4.

(3) according to formulaTry to achieve coefficient ξ_0j(k).Wherein, Δ_j (k)=| x₀(k)-x_j(k)|；x₀K () represents the actual inspiration capacity of nondimensional oil reservoir；x_jK () represents nondimensional reservoir parameter j；Represent each data point Δ_jThe minima of the absolute value of the difference of (k)；Represent each number Strong point Δ_jThe maximum of the absolute value of the difference of (k)；ρ is expressed as resolution ratio, ρ ∈ (0,1).

(4) according to formulaTry to achieve association numerical value r_0j.Wherein, the positive integer during j value is 1 to 4.

(5) the association numerical value r that will try to achieve_0jMake normalized, weight a of reservoir parameter can be obtained_j.Wherein, a₁It is expressed as The weight of reservoir depth；a₂It is expressed as the weight of core intersection；a₃Represent the weight of porosity；a₄Represent the weight of permeability.

The present invention gives a specific embodiment exploitation method of above-mentioned oil reservoir is illustrated.But, it is worth It is noted that this is embodied as, merely to the present invention is better described, being not intended that inappropriate limitation of the present invention.

In this example, it is assumed that oil reservoir number m=8 in oil reservoir, the number of reservoir parameter n is 4, these 4 oil reservoir ginsengs Number is respectively as follows: the degree of depth of oil reservoir, thickness, porosity and permeability.The average day gas injection rate injecting well in oil reservoir is 5773m³, average gas injection pressure is 4.4MPa.

Step 1: in acquisition oil reservoir, the actual inspiration capacity of 8 oil reservoirs is as target sequence:

$\stackrel{\→}{y_0}=(2222.61,67.28,132.779,75.05,2234.15,28.865,813.99,196.28);$

The average day gas injection rate injecting well in actual inspiration capacity according in oil reservoir 8 oil reservoirs and oil reservoir is 5773m³, can To obtain the actual percent inspiration of 8 oil reservoirs in oil reservoir:

Using 4 reservoir parameters of in oil reservoir 8 oil reservoirs: the degree of depth of oil reservoir, thickness, porosity and permeability are as dividing Analysis sequence is:

Reservoir depth:

Core intersection:

Porosity:

Permeability:

Step 2: according to formulaWherein, x_bK () is expressed as y_bThe nondimensionalization numerical value of (k)； y_bK () is expressed as in step 1Interior any number；B value is the positive integer in 0 to 4；

Each numerical value in target sequence in step 1 and analytical sequence carries out nondimensionalization process and can obtain:

${\stackrel{\→}{x}}_0=\left(\begin{array}{cccccccc}3.08,& 0.096,& 0.184,& 0.104,& 3.094,& 0.04,& 1.128,& 0.272\end{array}\right);$

${\stackrel{\→}{x}}_1=\left(\begin{array}{cccccccc}0.974,& 0.978,& 0.986,& 0.988,& 0.996,& 1.011,& 1.027,& 1.039\end{array}\right);$

${\stackrel{\→}{x}}_2=\left(\begin{array}{cccccccc}1.704,& 0.444,& 0.370,& 0.815,& 1.444,& 0.444,& 1.963,& 0.815\end{array}\right);$

${\stackrel{\→}{x}}_3=\left(\begin{array}{cccccccc}1.376,& 0.720,& 1.021,& 0.741,& 1.466,& 0.661,& 1.074,& 0.937\end{array}\right);$

${\stackrel{\→}{x}}_4=\left(\begin{array}{cccccccc}2.563,& 0.309,& 0.716,& 0.186,& 2.797,& 0.135,& 0.815,& 0.478\end{array}\right).$

Step 3: according to formulaTry to achieve coefficient ξ_0j(k).Wherein, Δ_j(k)=| x₀(k)-x_j(k)|；x₀K () represents the actual inspiration capacity of nondimensional oil reservoir；x_jK () represents that nondimensional oil reservoir is joined Number j；Represent each data point Δ_jThe minima of the absolute value of the difference of (k)；Represent each Data point Δ_jThe maximum of the absolute value of the difference of (k)；ρ is expressed as resolution ratio, ρ ∈ (0,1).

ξ₀₁(8)=(0.365,0.596,0.622,0.596,0.366,0.570,1.000,0.634)；

ξ₀₂(8)=(0.460,0.862,1.000,0.659,0.408,0.822,0.609,0.739)；

ξ₀₃(8)=(0.354,0.614,0.536,0.609,0.365,0.615,1.000,0.597)；

ξ₀₄(8)=(0.444,0.726,0.436,1.000,0.616,0.965,0.601,0.737).

Step 4: according to formulaTry to achieve association numerical value r_0j.Wherein, the most whole during j value is 1 to 4 Number.Can obtain: r₀₁=0.594, r₀₂=0.695, r₀₃=0.586, r₀₄=0.691.

Step 5: the association numerical value r that will try to achieve_0jMake normalized, weight a of reservoir parameter can be obtained_j, wherein, a₁Represent Weight for reservoir depth；a₂It is expressed as the weight of core intersection；a₃Represent the weight of porosity；a₄Represent the weight of permeability.

a₁=0.231, a₂=0.271, a₃=0.228, a₄=0.270.

Step 6: by weight a₁=0.231, a₂=0.271, a₃=0.228, a₄=0.270 brings weight correction formula into, asks Go out weight correction value.Weight correction formula is:

Wherein,Represent the weight correction value of the jth reservoir parameter of i-th oil reservoir；y_jiRepresent the jth of i-th oil reservoir Individual reservoir parameter, i takes the positive integer in 1 to m, and j takes the positive integer in 1 to n；N represents the number of reservoir parameter,Represent i-th The meansigma methods of the jth reservoir parameter of individual oil reservoir, a_jRepresent the weight of jth reservoir parameter.

Step 7: weight correction value step 6 obtained is brought in the theoretical percent inspiration formula of each oil reservoir, can be in the hope of Obtain the theoretical percent inspiration of each oil reservoir.Wherein, the theoretical percent inspiration formula of each oil reservoir is:

${\mathrm{\θ}}_i=\frac{(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})}{{\Σ}_{i=1}^m(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})};$

Wherein, θ_iRepresent the theoretical percent inspiration of i-th oil reservoir；M represents oil reservoir number；y_1iRepresent i-th oil reservoir 1st reservoir parameter；y_2iRepresent the 2nd reservoir parameter of i-th oil reservoir；y_niIt is expressed as the n-th oil reservoir ginseng of i-th oil reservoir Number；Represent the weight correction value of the 1st reservoir parameter of i-th oil reservoir；Represent the 2nd oil reservoir ginseng of i-th oil reservoir The weight correction value of number；It is expressed as the weight correction value of the n-th reservoir parameter of i-th oil reservoir.

Specifically, n=4, the 1st reservoir parameter is expressed as the degree of depth of oil reservoir, and the 2nd reservoir parameter is expressed as the thickness of oil reservoir Degree, the 3rd reservoir parameter is expressed as porosity, and the 4th reservoir parameter is expressed as permeability.Then y_1iRepresent the oil of i-th oil reservoir Layer depth；y_2iRepresent the thickness of i-th oil reservoir；y_3iRepresent the porosity of i-th oil reservoir；y_4iRepresent the infiltration of i-th oil reservoir Rate；Represent the weight correction value of the reservoir depth of i-th oil reservoir；Represent the weight correction value of the thickness of i-th oil reservoir；Represent the weight correction value of the porosity of i-th oil reservoir；Represent the weight correction value of the permeability of i-th oil reservoir.

The theoretical percent inspiration of each oil reservoir is:

$\stackrel{\→}{\mathrm{\θ}}=\left(\begin{array}{cccccccc}0.411,& 0.006,& 0.017,& 0.006,& 0.414,& 0.002,& 0.120,& 0.024\end{array}\right).$

Step 8: ask for the difference of the actual percent inspiration of described each oil reservoir and the theoretical percent inspiration of described each oil reservoir The absolute value of value, and the absolute value of described difference is obtained ratio compared with the actual percent inspiration of described each oil reservoir；.

The actual percent inspiration of each oil reservoir is:

$\stackrel{\→}{\mathrm{\η}}=\left(\begin{array}{cccccccc}0.385,& 0.012,& 0.023,& 0.013,& 0.387,& 0.005,& 0.141,& 0.034\end{array}\right).$

Try to achieve the absolute value of the actual percent inspiration of each oil reservoir and the theoretical percent inspiration difference of each oil reservoir, and by institute Stating the ratio that the absolute value of difference obtains compared with the actual percent inspiration of each oil reservoir is:

$\frac{\left|\stackrel{\→}{\mathrm{\η}}-\stackrel{\→}{\mathrm{\θ}}\right|}{\stackrel{\→}{\mathrm{\η}}}=\left(\begin{array}{cccccccc}0.068,& 0.5,& 0.261,& 0.538,& 0.070,& 0.6,& 0.149,& 0.294\end{array}\right).$

Step 9: the injection well in oil reservoir is carried out profile control according to described ratio, carries out envelope to the producing well in oil reservoir and alters.

Specifically, when described ratio is more than 50%, and the live wire of fireflood oil reservoir is away from injecting well less than injecting well and producing well Spacing 1/3 time, described injection well is carried out profile control；When described ratio is more than 50%, and the live wire of fireflood oil reservoir is away from note Enter well more than the spacing injecting well and producing well 1/3 time, described producing well is carried out envelope and alters.

According to above-mentioned dataThe data of visible 4th oil reservoir and the 6th oil reservoir are all higher than 50%, i.e. will be to the 4th Oil reservoir and the 6th oil reservoir carry out profile control or envelope is altered.Specifically take profile control also or envelope alter also will according to inject well and producing well it Between distance determine, do not make any restriction in this present invention.

The exploitation method of the oil reservoir of the present invention utilizes existing reservoir parameter value to analyze the theoretical air-breathing of Multi-level Fire oil reservoirs Percentage ratio, then calculate the absolute value of the actual percent inspiration of each oil reservoir and the difference of the theoretical percent inspiration of each oil reservoir, will The absolute value of described difference obtains ratio compared with the actual percent inspiration of described each oil reservoir, utilizes this ratio can instruct reality Border produces, and reduces workload, reduces expense and puts into, improves working performance.

Based on same inventive concept, the embodiment of the present invention additionally provides the exploration device of a kind of oil reservoir, such as following reality Execute described in example.Owing to the principle of the exploration device solution problem of a kind of oil reservoir is similar to the exploitation method of a kind of oil reservoir, therefore oil The enforcement of the exploration device hidden may refer to the enforcement of the exploitation method of oil reservoir, repeats no more in place of repetition.It is used below, Term " unit " or " module " can realize the software of predetermined function and/or the combination of hardware.Although following example are retouched The device stated preferably realizes with software, but hardware, or the realization of the combination of software and hardware be also possible and by structure Think.

As in figure 2 it is shown, the present invention also provides for the exploration device of a kind of oil reservoir, including: the first acquisition module 101, second obtain Delivery block 102, first is analyzed module 103, second and is analyzed module 104 and adjustment module 105, says this structure below Bright.

First acquisition module 101, is configured to obtain the actual percent inspiration of each oil reservoir in oil reservoir；

Second acquisition module 102, is configured to obtain the theoretical percent inspiration of described each oil reservoir；

First analyzes module 103, is configured to the actual percent inspiration asking for described each oil reservoir and described each oil reservoir The absolute value of the difference of theoretical percent inspiration；

Second analyzes module 104, is configured to the actual air-breathing percentage of the absolute value of described difference Yu described each oil reservoir Ratio is obtained than comparing；

Adjustment module 105, is configured to the injection well in oil reservoir be carried out profile control, to the life in oil reservoir according to described ratio Product well carries out envelope and alters.

In one embodiment, the actual percent inspiration of described each oil reservoir is actual inspiration capacity and the injection of each oil reservoir The ratio of total gas injection rate of well.

In one embodiment, according to the theoretical percent inspiration of the below equation described each oil reservoir of calculating:

${\mathrm{\θ}}_i=\frac{(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})}{{\Σ}_{i=1}^m(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})};$

Wherein, θ_iRepresent the theoretical percent inspiration of i-th oil reservoir；M represents oil reservoir number；y_1iRepresent i-th oil reservoir 1st reservoir parameter；y_2iRepresent the 2nd reservoir parameter of i-th oil reservoir；y_niIt is expressed as the n-th oil reservoir ginseng of i-th oil reservoir Number；Represent the weight correction value of the 1st reservoir parameter of i-th oil reservoir；Represent the 2nd oil reservoir ginseng of i-th oil reservoir The weight correction value of number；It is expressed as the weight correction value of the n-th reservoir parameter of i-th oil reservoir.

In one embodiment, according to the below equation described weight correction value of calculating:

$\∂y_{ji}=(y_{ji}-\stackrel{\‾}{y_{ji}})(a_j-\frac{1}{n})\×n;$

Wherein,Represent the weight correction value of the jth reservoir parameter of i-th oil reservoir；y_jiRepresent the jth of i-th oil reservoir Individual reservoir parameter, i takes the positive integer in 1 to m, and j takes the positive integer in 1 to n；N represents the number of reservoir parameter,Represent i-th The meansigma methods of the jth reservoir parameter of individual oil reservoir, a_jRepresent the weight of jth reservoir parameter.

In one embodiment, the number of described reservoir parameter is 4.These 4 reservoir parameters are respectively as follows: the deep of oil reservoir Degree, thickness, porosity and permeability.

In one embodiment, adjustment module 105 also includes regulating unit, and described ratio is more than 50%, and fireflood oil The live wire of layer is less than the 1/3 of the spacing injecting well and producing well away from injecting well, and described injection well is carried out by described regulation unit Profile control.Described ratio is more than 50%, and the live wire of fireflood oil reservoir is away from injecting well more than the 1/ of the spacing injecting well and producing well 3, described regulation unit carries out envelope to described producing well and alters.

In another one embodiment, additionally providing a kind of software, this software is used for performing above-described embodiment and preferably Technical scheme described in embodiment.

In another one embodiment, additionally providing a kind of storage medium, in this storage medium, storage has above-mentioned software, This storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc..

As can be seen from the above description, embodiment of the present invention achieves following technique effect: first the present invention obtains Take the actual percent inspiration of each oil reservoir in oil reservoir, then obtain the theoretical percent inspiration of described each oil reservoir, then ask for described The absolute value of the difference of the theoretical percent inspiration of the actual percent inspiration of each oil reservoir and described each oil reservoir, by described difference Absolute value obtains ratio compared with the actual percent inspiration of described each oil reservoir；Finally reality can be instructed raw according to this ratio Produce.

Obviously, those skilled in the art should be understood that each module of the above-mentioned embodiment of the present invention or each step are permissible Realizing with general calculating device, they can concentrate on single calculating device, or is distributed in multiple calculating device On the network formed, alternatively, they can realize with calculating the executable program code of device, it is thus possible to by it Store and perform by calculating device in the storage device, and in some cases, can hold with the order being different from herein Step shown or described by row, or they are fabricated to respectively each integrated circuit modules, or multiple by them Module or step are fabricated to single integrated circuit module and realize.So, the embodiment of the present invention is not restricted to any specific hard Part and software combine.

Each embodiment in this specification all uses the mode gone forward one by one to describe, what each embodiment stressed is with The difference of other embodiments, between each embodiment, identical similar part sees mutually.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made Any modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.

Claims (9)

1. the exploitation method of an oil reservoir, it is characterised in that including:

Obtain the actual percent inspiration of each oil reservoir in oil reservoir；

Obtain the theoretical percent inspiration of described each oil reservoir；

Ask for the absolute value of the actual percent inspiration of described each oil reservoir and the difference of the theoretical percent inspiration of described each oil reservoir；

The absolute value of described difference is obtained ratio compared with the actual percent inspiration of described each oil reservoir；

According to described ratio, the injection well in oil reservoir is carried out profile control, the producing well in oil reservoir is carried out envelope and alters.

The exploitation method of oil reservoir the most according to claim 1, it is characterised in that the actual percent inspiration of described each oil reservoir Actual inspiration capacity and the ratio of total gas injection rate injecting well for each oil reservoir.

The exploitation method of oil reservoir the most according to claim 1, it is characterised in that calculate described each oil reservoir according to below equation Theoretical percent inspiration:

${\mathrm{\θ}}_i=\frac{(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})}{{\mathrm{\Σ}}_{i=1}^m(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})};$

Wherein, θ_iRepresent the theoretical percent inspiration of i-th oil reservoir；M represents oil reservoir number；y_1iRepresent the 1st of i-th oil reservoir Reservoir parameter；y_2iRepresent the 2nd reservoir parameter of i-th oil reservoir；y_niIt is expressed as the n-th reservoir parameter of i-th oil reservoir； Represent the weight correction value of the 1st reservoir parameter of i-th oil reservoir；Represent the power of the 2nd reservoir parameter of i-th oil reservoir Rebuild on the occasion of；It is expressed as the weight correction value of the n-th reservoir parameter of i-th oil reservoir.

The exploitation method of oil reservoir the most according to claim 3, it is characterised in that calculate described weight according to below equation and repair On the occasion of:

$\∂y_{ji}=(y_{ji}-\stackrel{\‾}{y_{ji}})(a_j-\frac{1}{n})\×n;$

Wherein,Represent the weight correction value of the jth reservoir parameter of i-th oil reservoir；y_jiRepresent the jth oil of i-th oil reservoir Layer parameter, i takes the positive integer in 1 to m, and j takes the positive integer in 1 to n；N represents the number of reservoir parameter,Represent i-th oil The meansigma methods of the jth reservoir parameter of layer, a_jRepresent the weight of jth reservoir parameter.

The exploitation method of oil reservoir the most according to claim 4, it is characterised in that the number of described reservoir parameter is 4.

The exploitation method of oil reservoir the most according to claim 5, it is characterised in that 4 reservoir parameters are respectively as follows: the deep of oil reservoir Degree, thickness, porosity and permeability.

The exploitation method of oil reservoir the most according to claim 1, it is characterised in that according to described ratio to the injection in oil reservoir Well carries out profile control, the producing well in oil reservoir is carried out envelope and alters, including:

When described ratio is more than 50%, and the live wire of fireflood oil reservoir is away from injecting well less than the 1/ of the spacing injecting well and producing well When 3, described injection well is carried out profile control；

When described ratio is more than 50%, and the live wire of fireflood oil reservoir is away from injecting well more than the 1/ of the spacing injecting well and producing well When 3, described producing well is carried out envelope and alters.

8. the exploration device of an oil reservoir, it is characterised in that including:

First acquisition module, is configured to obtain the actual percent inspiration of each oil reservoir in oil reservoir；

Second acquisition module, is configured to obtain the theoretical percent inspiration of described each oil reservoir；

First analyzes module, is configured to the theoretical air-breathing of actual percent inspiration and the described each oil reservoir asking for described each oil reservoir The absolute value of the difference of percentage ratio；

Second analyzes module, is configured to the absolute value of described difference compared with the actual percent inspiration of described each oil reservoir To ratio；

Adjustment module, is configured to, according to described ratio, the injection well in oil reservoir is carried out profile control, enters the producing well in oil reservoir Row envelope is altered.

The exploration device of oil reservoir the most according to claim 8, it is characterised in that calculate described each oil reservoir according to below equation Theoretical percent inspiration:

${\mathrm{\θ}}_i=\frac{(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})}{{\mathrm{\Σ}}_{i=1}^m(y_{1i}+\∂y_{1i})(y_{2i}+\∂y_{2i})...(y_{ni}+\∂y_{ni})};$

Wherein, θ_iRepresent the theoretical percent inspiration of i-th oil reservoir；M represents oil reservoir number；y_1iRepresent the 1st of i-th oil reservoir Reservoir parameter；y_2iRepresent the 2nd reservoir parameter of i-th oil reservoir；y_niIt is expressed as the n-th reservoir parameter of i-th oil reservoir； Represent the weight correction value of the 1st reservoir parameter of i-th oil reservoir；Represent the power of the 2nd reservoir parameter of i-th oil reservoir Rebuild on the occasion of；It is expressed as the weight correction value of the n-th reservoir parameter of i-th oil reservoir.