CN107422377A - Utilize the method and device of geological data prediction hydrocarbon source rock total content of organic carbon - Google Patents

Utilize the method and device of geological data prediction hydrocarbon source rock total content of organic carbon Download PDF

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Publication number
CN107422377A
CN107422377A CN201710555401.7A CN201710555401A CN107422377A CN 107422377 A CN107422377 A CN 107422377A CN 201710555401 A CN201710555401 A CN 201710555401A CN 107422377 A CN107422377 A CN 107422377A
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China
Prior art keywords
wave impedance
pseudo
curve
well point
organic carbon
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CN201710555401.7A
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CN107422377B (en
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刘雷颂
孙星
郭增虎
代双和
聂刚
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China National Petroleum Corp
BGP Inc
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China National Petroleum Corp
BGP Inc
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
    • G01V1/30—Analysis
    • G01V1/306—Analysis for determining physical properties of the subsurface, e.g. impedance, porosity or attenuation profiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/62—Physical property of subsurface
    • G01V2210/622—Velocity, density or impedance
    • G01V2210/6226—Impedance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/60—Analysis
    • G01V2210/62—Physical property of subsurface
    • G01V2210/624—Reservoir parameters

Abstract

The embodiment of the present application provides a kind of method and device that hydrocarbon source rock total content of organic carbon is predicted using geological data, and this method includes：According to the interval transit time curve acquisition wave impedance that well point is specified in work area, and according to the pseudo- wave impedance of the resistivity curve of specified well point acquisition；Determine the first wave impedance differences of wave impedance and pseudo- wave impedance；It is determined that specify the total content of organic carbon curve of well point；Determine the relation curve of first wave impedance differences and organic carbon content curve；Wave impedance and pseudo- wave impedance are utilized respectively, wave impedance inversion is carried out to the geological data in work area, it is corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；Determine the second wave impedance difference of wave impedance inversion data volume and pseudo- wave impedance inversion data volume；According to the second wave impedance difference and relation curve, the hydrocarbon source rock total content of organic carbon data volume in work area is determined.The embodiment of the present application can improve the TOC content prediction precision in work area.

Description

Utilize the method and device of geological data prediction hydrocarbon source rock total content of organic carbon
Technical field
The application is related to hydrocarbon source rock total content of organic carbon (Total Organic Carbon, abbreviation TOC) Predicting Technique neck Domain, more particularly to a kind of method and device that hydrocarbon source rock total content of organic carbon is predicted using geological data.
Background technology
Oil field development enters stage middle and later periods, the reserve forecasting of remaining oil is increasingly paid attention to, oil field residual recoverable reserves Number often directly affect the follow-up offtake strategy in oil field.Obtain accurate oil field residual recoverable reserves, it is necessary to accurate Really prediction oil field residue gross reserves, and Accurate Prediction oil field residue gross reserves amount is wanted, the TOC contents for obtaining source bed are a passes Bond parameter.
It is much by being united to the TOC content information of each drilling well in work area at present to the prediction of TOC contents Meter, simulation and forecast then is carried out to whole work area using the mode being deteriorated.And during the application is realized, the hair of the application A person of good sense has found：For the place near the Nei Ge well points of work area, due to there is the TOC content information of each drilling well, it is ensured that TOC The precision of prediction of content.But for the place outside near the Nei Ge well points of work area, due to lacking to whole work area simulation and forecast Suitable constraints, the precision of the TOC contents in the whole work area for causing to predict is difficult to ensure that, whole so as to be difficult to objectively respond The actual TOC contents in individual work area.
The content of the invention
The purpose of the embodiment of the present application is to provide a kind of side for predicting hydrocarbon source rock total content of organic carbon using geological data Method and device, to improve the TOC content prediction precision in work area.
To reach above-mentioned purpose, on the one hand, the embodiment of the present application provides a kind of total using geological data prediction hydrocarbon source rock The method of organic carbon content, including：
According to the interval transit time curve acquisition wave impedance that well point is specified in work area, and according to the resistivity of the specified well point Curve acquisition puppet wave impedance；
Determine the first wave impedance differences of the wave impedance and pseudo- wave impedance；
Determine the total content of organic carbon curve of the specified well point；
Determine the relation curve of the first wave impedance differences and the organic carbon content curve；
The wave impedance and the pseudo- wave impedance are utilized respectively, wave impedance inversion is carried out to the geological data in the work area, It is corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
Determine the second wave impedance difference of the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume；
According to the second wave impedance difference and the relation curve, the hydrocarbon source rock total content of organic carbon in the work area is determined Data volume.
The method that hydrocarbon source rock total content of organic carbon is predicted using geological data of the application, it is described according to specified well in work area The interval transit time curve of point obtains wave impedance, including：
According to formulaObtain wave impedance；
Wherein, CimpTo specify the wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t is the sound for specifying well point The ripple time difference.
The method that hydrocarbon source rock total content of organic carbon is predicted using geological data of the application, it is described according to the specified well point Resistivity curve obtain pseudo- wave impedance, including：
The resistivity curve of the specified well point is converted into pseudo- interval transit time curve；
Pseudo- wave impedance is obtained using the pseudo- interval transit time curve.
The method that hydrocarbon source rock total content of organic carbon is predicted using geological data of the application, it is described by the specified well point Resistivity curve is converted into pseudo- interval transit time curve, including：
According to formula Δ t'=KHCdRThe resistivity curve of specified well point is converted into pseudo- interval transit time curve；
Wherein, Δ t' is the pseudo- interval transit time for specifying well point, and K, d and C are constant, and H is the depth for specifying well point, and R is to refer to Determine the resistivity of well point.
The application using geological data predict hydrocarbon source rock total content of organic carbon method, it is described using the pseudo- sound wave when Poor curve acquisition puppet wave impedance, including：
According to formulaObtain pseudo- wave impedance；
Wherein, CimprTo specify the pseudo- wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t' is to specify well point Pseudo- interval transit time.
The method that hydrocarbon source rock total content of organic carbon is predicted using geological data of the application, according to determining below equation Specify the total content of organic carbon curve of well point：
TOC=10 × (2.297-0.1688R0)×ΔlogR；
Wherein, TOC specifies the total content of organic carbon of well point, R0For resistivity corresponding to baseline, Δ logR is same depth Under, the distance of interval transit time curve and resistivity curve, and Δ logR=log (R/R0)+0.02(Δt-Δt0), R is actual measurement electricity Resistance rate, Δ t are to survey interval transit time, Δ t0Interval transit time corresponding to baseline.
On the other hand, the embodiment of the present application additionally provides a kind of predicts hydrocarbon source rock total content of organic carbon using geological data Device, including：
Wave impedance acquisition module, for the interval transit time curve acquisition wave impedance according to specified well point in work area, and according to The resistivity curve of the specified well point obtains pseudo- wave impedance；
First wave impedance differences determining module, for determining the first wave impedance differences of the wave impedance and pseudo- wave impedance；
Single-point content determining module, for determining the total content of organic carbon curve of the specified well point；
Relation curve determining module, for determining the relation of the first wave impedance differences and the organic carbon content curve Curve；
Wave impedance inversion module, for being utilized respectively the wave impedance and the pseudo- wave impedance, the earthquake to the work area Data carry out wave impedance inversion, corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
Second wave impedance difference determining module, for determining the wave impedance inversion data volume and the pseudo- wave impedance inversion Second wave impedance difference of data volume；
Overall content determining module, for according to the second wave impedance difference and the relation curve, determining the work The hydrocarbon source rock total content of organic carbon data volume in area.
The device that hydrocarbon source rock total content of organic carbon is predicted using geological data of the embodiment of the present application, it is described according in work area The interval transit time curve of well point is specified to obtain wave impedance, including：
According to formulaObtain wave impedance；
Wherein, CimpTo specify the wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t is the sound for specifying well point The ripple time difference.
The device that hydrocarbon source rock total content of organic carbon is predicted using geological data of the embodiment of the present application, it is described according to the finger The resistivity curve for determining well point obtains pseudo- wave impedance, including：
The resistivity curve of the specified well point is converted into pseudo- interval transit time curve；
Pseudo- wave impedance is obtained using the pseudo- interval transit time curve.
The device that hydrocarbon source rock total content of organic carbon is predicted using geological data of the embodiment of the present application, it is described to be specified described The resistivity curve of well point is converted into pseudo- interval transit time curve, including：
According to formula Δ t'=KHCdRThe resistivity curve of specified well point is converted into pseudo- interval transit time curve；
Wherein, Δ t' is the pseudo- interval transit time for specifying well point, and K, d and C are constant, and H is the depth for specifying well point, and R is to refer to Determine the resistivity of well point.
The device that hydrocarbon source rock total content of organic carbon is predicted using geological data of the embodiment of the present application, it is described to utilize the puppet Interval transit time curve obtains pseudo- wave impedance, including：
According to formulaObtain pseudo- wave impedance；
Wherein, CimprTo specify the pseudo- wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t' is to specify well point Pseudo- interval transit time.
The device that hydrocarbon source rock total content of organic carbon is predicted using geological data of the embodiment of the present application, it is true according to below equation The total content of organic carbon curve of the fixed specified well point：
TOC=10 × (2.297-0.1688R0)×ΔlogR；
Wherein, TOC specifies the total content of organic carbon of well point, R0For resistivity corresponding to baseline, Δ logR is same depth Under, the distance of interval transit time curve and resistivity curve, and Δ logR=log (R/R0)+0.02(Δt-Δt0), R is actual measurement electricity Resistance rate, Δ t are to survey interval transit time, Δ t0Interval transit time corresponding to baseline.
Another further aspect, the embodiment of the present application additionally provides a kind of predicts hydrocarbon source rock total content of organic carbon using geological data Device, including memory, processor and the computer program being stored on the memory, the computer program is by institute Following steps are performed when stating processor operation：
According to the interval transit time curve acquisition wave impedance that well point is specified in work area, and according to the resistivity of the specified well point Curve acquisition puppet wave impedance；
Determine the first wave impedance differences of the wave impedance and pseudo- wave impedance；
Determine the total content of organic carbon curve of the specified well point；
Determine the relation curve of the first wave impedance differences and the organic carbon content curve；
The wave impedance and the pseudo- wave impedance are utilized respectively, wave impedance inversion is carried out to the geological data in the work area, It is corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
Determine the second wave impedance difference of the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume；
According to the second wave impedance difference and the relation curve, the hydrocarbon source rock total content of organic carbon in the work area is determined Data volume.
The technical scheme provided from above the embodiment of the present application, the embodiment of the present application utilize specified well point in work area Log data, which is obtained between TOC and wave impedance difference, has corresponding relation, then, whole work is obtained by the geological data in work area The difference of the wave impedance in area and pseudo- wave impedance, so that according to the corresponding relation, and with the wave impedance in whole work area and pseudo- wave impedance Difference as constraint information, obtain the TOC contents in whole work area.Because the constraint information in the embodiment of the present application derives from work The geological data in area, and the geological data in work area is the objective reaction that work area underground includes the integrated informations such as lithology, fluid, because This, the embodiment of the present application improves the precision of prediction of the TOC contents in whole work area.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments described in application, for those of ordinary skill in the art, do not paying the premise of creative labor Under, other accompanying drawings can also be obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is the method flow diagram for predicting hydrocarbon source rock total content of organic carbon in the embodiment of the application one using geological data；
Fig. 2 be the embodiment of the application one in interval transit time (Δ t), resistivity (R), interval transit time and resistivity overlapping, with And cross the TOC curve synoptic diagrams of overlay interpretation；
Fig. 3 is the pseudo- interval transit time (Δ tR) that resistivity (R), resistivity are converted into the embodiment of the application one, pseudo- sound wave Pseudo- ingrated seismic trace (impR) schematic diagram that the time difference is converted into；
Fig. 4 be the embodiment of the application one in wave impedance (imp), pseudo- wave impedance (impR), wave impedance and pseudo- wave impedance overlapping, And the difference curve of pseudo- wave impedance and wave impedance (impR-imp) schematic diagram；
Fig. 5 is difference curve and TOC cross analysis schematic diagrames in the application Fig. 4；
Fig. 6 is that the earthquake for respectively obtaining wave impedance and pseudo- wave impedance progress wave impedance inversion in the embodiment of the application one is anti- Drill result diagrammatic cross-section；
Fig. 7 is that the difference profile that two kinds of inversion results in Fig. 6 are subtracted each other to obtain by the embodiment of the application one is (upper in Fig. 7 Figure), and the TOC sections (figure below in Fig. 7) obtained by the relation curve shown in the difference profile and Fig. 5；
Fig. 8 is the apparatus structure frame for predicting hydrocarbon source rock total content of organic carbon in the embodiment of the application one using geological data Figure；
Fig. 9 is the apparatus structure frame for predicting hydrocarbon source rock total content of organic carbon in another embodiment of the application using geological data Figure.
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 example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection Scope.
With reference to shown in figure 1, the embodiment of the present application predicts that the method for hydrocarbon source rock total content of organic carbon can using geological data With including：
S101, the interval transit time curve acquisition wave impedance according to specified well point in work area, and according to the specified well point Resistivity curve obtains pseudo- wave impedance.
In the embodiment of the present application, when there is resistivity curve (R in such as Fig. 2), sound wave of specified well point in work area (the Δ t) well-log informations in such as Fig. 2, i.e., the same position in work area, existing Electric Log Data, also there is sound wave to poor curve Log data.The pseudo- wave impedance is the wave impedance obtained by resistivity curve, passes through interval transit time curve to be different from Obtained wave impedance, the wave impedance obtained by resistivity curve is referred to as pseudo- wave impedance in the embodiment of the present application.
In the application one embodiment, the interval transit time curve according to specified well point in work area obtains wave impedance can With including：According to formulaObtain wave impedance；Wherein, CimpTo specify the wave impedance of well point in work area (in such as Fig. 3 Imp), ρ be specify well point density, Δ t be specify well point interval transit time.
In the application one embodiment, the basis is specified the resistivity curve of well point to obtain pseudo- wave impedance and can wrapped Include：The resistivity curve (R in such as Fig. 3) of the specified well point is converted into pseudo- interval transit time curve (the Δ tR in such as Fig. 3)； Then pseudo- wave impedance (impR in such as Fig. 3) is obtained using the pseudo- interval transit time curve.Wherein：
The resistivity curve of the specified well point is converted into pseudo- interval transit time curve, can be according to formula Δ t'=KHCdR Realize.Wherein, Δ t' is the pseudo- interval transit time for specifying well point, and K, d and C are constant, and H is the depth for specifying well point, and R is to specify well The resistivity of point.Obtaining pseudo- wave impedance using the pseudo- interval transit time curve can be according to formulaRealize.Its In, CimprTo specify the pseudo- wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t' is when specifying the pseudo- sound wave of well point Difference.
S102, the first wave impedance differences for determining the wave impedance and pseudo- wave impedance.
In the embodiment of the present application, can by ingrated seismic trace and pseudo- ingrated seismic trace are overlapped (as shown in figure 4, In Fig. 4, imp is ingrated seismic trace, and impR is pseudo- ingrated seismic trace), to determine the first wave of the wave impedance and pseudo- wave impedance Impedance contrast).
S103, the total content of organic carbon curve for determining the specified well point.
In the embodiment of the present application, the resistivity curve of the specified well point in work area is overlapped with interval transit time curve, The total content of organic carbon curve of well point can be obtained specifying (as shown in the TOC in Fig. 2).After overlapping, for a certain depth, work as electricity Resistance rate is completely superposed with interval transit time, then it is that zero (position is free of in other words to show the position hydrocarbon source rock total content of organic carbon TOC)；For a certain depth, when resistivity is misaligned with interval transit time, then show that the position residue has TOC, and it is misaligned tighter Weight, the corresponding remaining TOC of reaction are more.Therefore, the embodiment of the present application is by by the resistance of the same specified well point in work area Rate curve is overlapped with interval transit time curve, it can be determined that this specifies each depth in well point position, and whether residue has TOC and remained Remaining situation.
Specifically, in the embodiment of the application one, it is described to determine to specify the total content of organic carbon curve of well point basis Formula TOC=10 × (2.297-0.1688R0) × Δ logR is realized.
Wherein, TOC specifies the total content of organic carbon of well point, R0For resistivity corresponding to baseline, Δ logR is same depth Under, the distance of interval transit time curve and resistivity curve, and Δ logR=log (R/R0)+0.02(Δt-Δt0), R is actual measurement electricity Resistance rate, Δ t are to survey interval transit time, Δ t0Interval transit time corresponding to baseline.
In the application other embodiment, as needed, above-mentioned TOC=10 × (2.297-0.1688R0) × Δ logR TOC=a Δ logR can be reduced to, wherein a is coefficient.
S104, the relation curve for determining the first wave impedance differences and the organic carbon content curve.
In the embodiment of the present application, by the way that above-mentioned first wave impedance differences and above-mentioned TOC curves are crossed, it can be fitted Relation curve TOC=f (the C gone out between first wave impedance differences and TOC curvesimpr-Cimp) (as shown in the curve in Fig. 5).Should Relation curve, which is reflected between TOC and first wave impedance differences, has corresponding relation.
S105, the wave impedance and the pseudo- wave impedance are utilized respectively, wave impedance is carried out to the geological data in the work area Inverting, it is corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume.
In the embodiment of the present application, the geological data in work area is that work area underground includes the objective of the integrated informations such as lithology, fluid Reaction, it forms the constraint in whole block face.It is utilized respectively the wave impedance and the pseudo- wave impedance, the earthquake to the work area Data carry out wave impedance inversion, can correspond to and obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume (as shown in Figure 6). As can be seen here, what the difference of the wave impedance inversion data volume in the embodiment of the present application and pseudo- wave impedance inversion data volume was reacted is whole The situation in individual work area, consequently facilitating subsequently calculating the wave impedance in whole block face and the difference of pseudo- wave impedance.
S106, the second difference of impedance for determining the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume Value.
, can be by the way that the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume be entered in the embodiment of the present application Row overlapping, to determine the second wave impedance difference of the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume (such as Shown in upper figure in Fig. 7).
S107, according to the second wave impedance difference and the relation curve, determine that the hydrocarbon source rock in the work area is always organic Carbon content data volume.
In the embodiment of the present application, by that can know corresponding relation, therefore, the above between TOC and wave impedance difference be present above The second wave impedance difference is stated as input, substitutes into above-mentioned TOC=f (Cimpr-Cimp) relation curve, it can obtain the hydrocarbon in whole work area Source rock total content of organic carbon (as shown in figure below in Fig. 7).As can be seen here, the embodiment of the present application utilizes specified well point in work area Log data, which is obtained between TOC and wave impedance difference, has corresponding relation, then, whole work is obtained by the geological data in work area The difference of the wave impedance in area and pseudo- wave impedance, so that according to the corresponding relation, and with the wave impedance in whole work area and pseudo- wave impedance Difference as constraint information, obtain the TOC contents in whole work area.Because the constraint information in the embodiment of the present application derives from work The geological data in area, and the geological data in work area is the objective reaction that work area underground includes the integrated informations such as lithology, fluid, because This, the embodiment of the present application improves the precision of prediction of the TOC contents in whole work area.
Although procedures described above flow includes the multiple operations occurred with particular order, it should however be appreciated that understand, These processes can include more or less operations, and these operations sequentially can be performed or performed parallel (such as using parallel Processor or multi-thread environment).
With reference to shown in figure 8, the embodiment of the present application predicts that the device of hydrocarbon source rock total content of organic carbon can using geological data With including：
Wave impedance acquisition module 81, it can be used for according to the interval transit time curve acquisition wave impedance that well point is specified in work area, And pseudo- wave impedance is obtained according to the resistivity curve of the specified well point；
First wave impedance differences determining module 82, it is determined for the first wave impedance of the wave impedance and pseudo- wave impedance Difference；
Single-point content determining module 83, it is determined for the total content of organic carbon curve of the specified well point；
Relation curve determining module 84, it is determined for the first wave impedance differences and the organic carbon content curve Relation curve；
Wave impedance inversion module 85, it can be used for being utilized respectively the wave impedance and the pseudo- wave impedance, to the work area Geological data carry out wave impedance inversion, it is corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
Second wave impedance difference determining module 86, is determined for the wave impedance inversion data volume and the pseudo- wave resistance Anti-reflective drills the second wave impedance difference of data volume；
Overall content determining module 87, it can be used for according to the second wave impedance difference and the relation curve, it is determined that The hydrocarbon source rock total content of organic carbon data volume in the work area.
The device of the embodiment of the present application is corresponding with the method for above-described embodiment, therefore, is related to the device details of the application, The method for referring to above-described embodiment, will not be repeated here.
With reference to shown in figure 9, the embodiment of the present application predicts that the device of hydrocarbon source rock total content of organic carbon can using geological data So that including memory, processor and the computer program being stored on the memory, the computer program is by the place Following steps are performed during reason device operation：
According to the interval transit time curve acquisition wave impedance that well point is specified in work area, and according to the resistivity of the specified well point Curve acquisition puppet wave impedance；
Determine the first wave impedance differences of the wave impedance and pseudo- wave impedance；
Determine the total content of organic carbon curve of the specified well point；
Determine the relation curve of the first wave impedance differences and the organic carbon content curve；
The wave impedance and the pseudo- wave impedance are utilized respectively, wave impedance inversion is carried out to the geological data in the work area, It is corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
Determine the second wave impedance difference of the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume；
According to the second wave impedance difference and the relation curve, the hydrocarbon source rock total content of organic carbon in the work area is determined Data volume.
The device of the embodiment of the present application is corresponding with the method for above-described embodiment, therefore, is related to the device details of the application, The method for referring to above-described embodiment, will not be repeated here.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, this is being implemented The function of each unit can be realized in same or multiple softwares and/or hardware during application.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net Network interface and internal memory.
Internal memory may include computer-readable medium in volatile memory, random access memory (RAM) and/or The forms such as Nonvolatile memory, such as read-only storage (ROM) or flash memory (flash RAM).Internal memory is computer-readable medium Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method Or technology come realize information store.Information can be computer-readable instruction, data structure, the module of program or other data. The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moved State random access memory (DRAM), other kinds of random access memory (RAM), read-only storage (ROM), electric erasable Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only optical disc read-only storage (CD-ROM), Digital versatile disc (DVD) or other optical storages, magnetic cassette tape, the storage of tape magnetic rigid disk or other magnetic storage apparatus Or any other non-transmission medium, the information that can be accessed by a computing device available for storage.Define, calculate according to herein Machine computer-readable recording medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
It should also be noted that, term " comprising ", "comprising" or its any other variant are intended to nonexcludability Comprising so that process, method, commodity or equipment including a series of elements not only include those key elements, but also wrapping Include the other element being not expressly set out, or also include for this process, method, commodity or equipment intrinsic want Element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that wanted including described Other identical element also be present in the process of element, method, commodity or equipment.
It will be understood by those skilled in the art that embodiments herein can be provided as method, system or computer program product. Therefore, the application can be using the embodiment in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Form.Deposited moreover, the application can use to can use in one or more computers for wherein including computer usable program code The shape for the computer program product that storage media is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) Formula.
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 etc..The application can also be put into practice in a distributed computing environment, in these DCEs, by Task is performed and connected remote processing devices by communication network.In a distributed computing environment, program module can be with In the local and remote computer-readable storage medium including storage device.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment Divide mutually referring to what each embodiment stressed is the difference with other embodiment.It is real especially for system For applying example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method Part explanation.
Embodiments herein is the foregoing is only, is not limited to the application.For those skilled in the art For, the application can have various modifications and variations.All any modifications made within spirit herein and principle, it is equal Replace, improve etc., it should be included within the scope of claims hereof.

Claims (13)

  1. A kind of 1. method that hydrocarbon source rock total content of organic carbon is predicted using geological data, it is characterised in that including：
    According to the interval transit time curve acquisition wave impedance that well point is specified in work area, and according to the resistivity curve of the specified well point Obtain pseudo- wave impedance；
    Determine the first wave impedance differences of the wave impedance and pseudo- wave impedance；
    Determine the total content of organic carbon curve of the specified well point；
    Determine the relation curve of the first wave impedance differences and the organic carbon content curve；
    The wave impedance and the pseudo- wave impedance are utilized respectively, wave impedance inversion is carried out to the geological data in the work area, it is corresponding Obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
    Determine the second wave impedance difference of the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume；
    According to the second wave impedance difference and the relation curve, the hydrocarbon source rock total content of organic carbon data in the work area are determined Body.
  2. 2. the method for geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 1, it is characterised in that institute State according to the interval transit time curve acquisition wave impedance that well point is specified in work area, including：
    According to formulaObtain wave impedance；
    Wherein, CimpTo specify the wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t is when specifying the sound wave of well point Difference.
  3. 3. the method for geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 1, it is characterised in that institute State and pseudo- wave impedance is obtained according to the resistivity curve of the specified well point, including：
    The resistivity curve of the specified well point is converted into pseudo- interval transit time curve；
    Pseudo- wave impedance is obtained using the pseudo- interval transit time curve.
  4. 4. the method for geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 3, it is characterised in that institute State and the resistivity curve of the specified well point is converted into pseudo- interval transit time curve, including：
    According to formula Δ t'=KHCdRThe resistivity curve of specified well point is converted into pseudo- interval transit time curve；
    Wherein, Δ t' is the pseudo- interval transit time for specifying well point, and K, d and C are constant, and H is the depth for specifying well point, and R is to specify well The resistivity of point.
  5. 5. the method that hydrocarbon source rock total content of organic carbon is predicted using geological data as described in claim 3 or 4, its feature are existed In, it is described to obtain pseudo- wave impedance using the pseudo- interval transit time curve, including：
    According to formulaObtain pseudo- wave impedance；
    Wherein, CimprTo specify the pseudo- wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t' is the pseudo- sound for specifying well point The ripple time difference.
  6. 6. the method for geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 1, it is characterised in that root The total content of organic carbon curve of the specified well point is determined according to below equation：
    TOC=10 × (2.297-0.1688R0)×ΔlogR；
    Wherein, TOC specifies the total content of organic carbon of well point, R0For resistivity corresponding to baseline, Δ logR is sound under same depth The distance of ripple deviation curve and resistivity curve, and Δ logR=log (R/R0)+0.02(Δt-Δt0), R is actual measurement resistivity, Δ t is to survey interval transit time, Δ t0Interval transit time corresponding to baseline.
  7. A kind of 7. device that hydrocarbon source rock total content of organic carbon is predicted using geological data, it is characterised in that including：
    Wave impedance acquisition module, for obtaining wave impedance according to the interval transit time curve of specified well point in work area, and according to described The resistivity curve of well point is specified to obtain pseudo- wave impedance；
    First wave impedance differences determining module, for determining the first wave impedance differences of the wave impedance and pseudo- wave impedance；
    Single-point content determining module, for determining the total content of organic carbon curve of the specified well point；
    Relation curve determining module, for determining that the relation of the first wave impedance differences and the organic carbon content curve is bent Line；
    Wave impedance inversion module, for being utilized respectively the wave impedance and the pseudo- wave impedance, to the geological data in the work area Wave impedance inversion is carried out, it is corresponding to obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
    Second wave impedance difference determining module, for determining the wave impedance inversion data volume and the pseudo- wave impedance inversion data Second wave impedance difference of body；
    Overall content determining module, for according to the second wave impedance difference and the relation curve, determining the work area Hydrocarbon source rock total content of organic carbon data volume.
  8. 8. the device of geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 7, it is characterised in that institute State according to the interval transit time curve acquisition wave impedance that well point is specified in work area, including：
    According to formulaObtain wave impedance；
    Wherein, CimpTo specify the wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t is when specifying the sound wave of well point Difference.
  9. 9. the device of geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 7, it is characterised in that institute State and pseudo- wave impedance is obtained according to the resistivity curve of the specified well point, including：
    The resistivity curve of the specified well point is converted into pseudo- interval transit time curve；
    Pseudo- wave impedance is obtained using the pseudo- interval transit time curve.
  10. 10. the device of geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 9, it is characterised in that The resistivity curve by the specified well point is converted into pseudo- interval transit time curve, including：
    According to formula Δ t'=KHCdRThe resistivity curve of specified well point is converted into pseudo- interval transit time curve；
    Wherein, Δ t' is the pseudo- interval transit time for specifying well point, and K, d and C are constant, and H is the depth for specifying well point, and R is to specify well The resistivity of point.
  11. 11. the device that hydrocarbon source rock total content of organic carbon is predicted using geological data as described in claim 9 or 10, its feature are existed In, it is described to obtain pseudo- wave impedance using the pseudo- interval transit time curve, including：
    According to formulaObtain pseudo- wave impedance；
    Wherein, CimprTo specify the pseudo- wave impedance of well point in work area, ρ is the density for specifying well point, and Δ t' is the pseudo- sound for specifying well point The ripple time difference.
  12. 12. the device of geological data prediction hydrocarbon source rock total content of organic carbon is utilized as claimed in claim 7, it is characterised in that The total content of organic carbon curve of the specified well point is determined according to below equation：
    TOC=10 × (2.297-0.1688R0)×ΔlogR；
    Wherein, TOC specifies the total content of organic carbon of well point, R0For resistivity corresponding to baseline, Δ logR is sound under same depth The distance of ripple deviation curve and resistivity curve, and Δ logR=log (R/R0)+0.02(Δt-Δt0), R is actual measurement resistivity, Δ t is to survey interval transit time, Δ t0Interval transit time corresponding to baseline.
  13. 13. a kind of device that hydrocarbon source rock total content of organic carbon is predicted using geological data, including memory, processor, Yi Jicun Store up the computer program on the memory, it is characterised in that the computer program performs when being run by the processor Following steps：
    According to the interval transit time curve acquisition wave impedance that well point is specified in work area, and according to the resistivity curve of the specified well point Obtain pseudo- wave impedance；
    Determine the first wave impedance differences of the wave impedance and pseudo- wave impedance；
    Determine the total content of organic carbon curve of the specified well point；
    Determine the relation curve of the first wave impedance differences and the organic carbon content curve；
    The wave impedance and the pseudo- wave impedance are utilized respectively, wave impedance inversion is carried out to the geological data in the work area, it is corresponding Obtain wave impedance inversion data volume and pseudo- wave impedance inversion data volume；
    Determine the second wave impedance difference of the wave impedance inversion data volume and the pseudo- wave impedance inversion data volume；
    According to the second wave impedance difference and the relation curve, the hydrocarbon source rock total content of organic carbon data in the work area are determined Body.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108492014A (en) * 2018-03-09 2018-09-04 中国石油天然气集团有限公司 A kind of data processing method and device of determining geological resources
CN110501744A (en) * 2019-08-26 2019-11-26 中海石油(中国)有限公司上海分公司 Hydrocarbon source rock organic carbon geophysics quantitative forecasting technique, device, equipment and storage medium
CN111580179A (en) * 2019-01-30 2020-08-25 中国石油天然气股份有限公司 Method, device and system for determining organic carbon content
CN111949945A (en) * 2020-07-28 2020-11-17 中国石油大学(北京) Method, device, equipment and system for determining total organic carbon content of hydrocarbon source rock

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108492014A (en) * 2018-03-09 2018-09-04 中国石油天然气集团有限公司 A kind of data processing method and device of determining geological resources
CN108492014B (en) * 2018-03-09 2022-05-10 中国石油天然气集团有限公司 Data processing method and device for determining geological resource amount
CN111580179A (en) * 2019-01-30 2020-08-25 中国石油天然气股份有限公司 Method, device and system for determining organic carbon content
CN111580179B (en) * 2019-01-30 2023-02-28 中国石油天然气股份有限公司 Method, device and system for determining organic carbon content
CN110501744A (en) * 2019-08-26 2019-11-26 中海石油(中国)有限公司上海分公司 Hydrocarbon source rock organic carbon geophysics quantitative forecasting technique, device, equipment and storage medium
CN110501744B (en) * 2019-08-26 2021-06-25 中海石油(中国)有限公司上海分公司 Hydrocarbon source rock organic carbon geophysical quantitative prediction method, device, equipment and storage medium
CN111949945A (en) * 2020-07-28 2020-11-17 中国石油大学(北京) Method, device, equipment and system for determining total organic carbon content of hydrocarbon source rock
CN111949945B (en) * 2020-07-28 2023-10-17 中国石油大学(北京) Method, device, equipment and system for determining total organic carbon content of source rock

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