CN113537702A - Geological dessert evaluation method, device, equipment and storage medium - Google Patents
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Abstract
The application provides a geological dessert evaluating method, a geological dessert evaluating device, equipment and a storage medium, wherein the method comprises the steps of obtaining multiple types of dessert evaluating parameters of an area to be determined, wherein the dessert evaluating parameters comprise the total organic carbon content, the maturity, the porosity and the oil content of the area to be determined; homogenizing each type of dessert evaluation parameter to obtain a homogenized dessert evaluation parameter, wherein the homogenized dessert evaluation parameter comprises a homogenized total organic carbon content, a homogenized maturity, a homogenized porosity and a homogenized oil content; determining a geological dessert evaluation index according to the preset weight coefficient and the homogenization dessert evaluation parameter corresponding to each type of homogenization dessert evaluation parameter; according to the geological dessert evaluation index, the exploration potential of the oil and gas resources in the area to be determined is determined, the dessert area with good oil and gas resources can be conveniently found according to the evaluation result, and the exploration and development process of the oil and gas resources is further accelerated.
Description
Technical Field
The invention relates to the technical field of oil exploration, in particular to a method, a device, equipment and a storage medium for evaluating a geological dessert.
Background
In the field of geological exploration, shale oil and gas geological dessert evaluation is preferably the basis for effective exploration and development of shale oil and gas resources. The 'sweet spot' is an area or an interval which is enriched with oil gas and can be effectively developed under the current economic and technical conditions, the sweet spot is important for geological development of shale, the oil gas is very important for geological development of shale, and the sweet spot is found, so that the shale exploration and development cost is reduced, and the gas-bearing shale bottom layer productivity is improved.
In the prior art, several factors of lithofacies characteristics, hydrocarbon source rock characteristics, reservoir characteristics, oil-containing properties and mobility characteristics of shale strata are generally utilized to preliminarily and roughly estimate and judge geological desserts and determine the geological desserts.
However, the prior art is difficult to accurately determine the geological dessert, and the evaluation accuracy of the geological dessert is poor.
Disclosure of Invention
The application provides a geological dessert evaluation method, a geological dessert evaluation device, equipment and a storage medium, so that the technical problems that the geological dessert is difficult to accurately determine and the accuracy of geological dessert evaluation is poor in the prior art are solved.
In a first aspect, the present application provides a method of evaluating a geological dessert, comprising:
obtaining multi-type dessert evaluation parameters of a region to be determined, wherein the dessert evaluation parameters comprise the total organic carbon content, the maturity, the porosity and the oil content of the region to be determined;
homogenizing each type of dessert evaluation parameter to obtain homogenized dessert evaluation parameters, wherein the homogenized dessert evaluation parameters comprise homogenized total organic carbon content, homogenized maturity, homogenized porosity and homogenized oil content;
determining a geological dessert evaluation index according to a preset weight coefficient corresponding to each type of the homogenized dessert evaluation parameters and the homogenized dessert evaluation parameters;
and determining the exploration potential of the oil and gas resources in the region to be determined according to the geological dessert evaluation index.
The geological dessert evaluation index is determined according to the total organic carbon content, the maturity, the porosity and the oil content of the area to be determined, homogenization treatment is firstly carried out during the determination of the geological dessert evaluation index to eliminate errors, weights are set for the parameters in order to better reflect the influence of the parameters on the geological dessert evaluation index, the geological dessert evaluation index of the area to be determined is accurately determined according to the preset weights and by combining a plurality of key parameters influencing the geological dessert, the geology can be accurately evaluated according to the geological dessert evaluation index, a dessert area with good oil and gas resources can be conveniently found according to the evaluation result, and the exploitation efficiency of the oil and gas resources is further improved.
Optionally, the determining the exploration potential of the hydrocarbon resources in the area to be determined according to the geological dessert evaluation index includes:
if the geological dessert evaluation index is larger than or equal to a first preset index, determining that the region to be determined is a first dessert region;
if the geological dessert evaluation index is smaller than a first preset index and larger than a second preset index, determining the region to be determined as a second dessert region;
if the geological dessert evaluation index is smaller than or equal to a second preset index, determining the region to be determined as a third dessert region;
and determining the exploration potential of the oil and gas resources in the region to be determined according to the dessert classification condition of the region to be determined.
Here, the examples of the present application determine a geological dessert evaluation index by combining several parameters of total organic carbon content, maturity, porosity and oil content, and classify geological desserts according to the geological dessert evaluation index, wherein the development interval with high organic matter abundance, high oil content, high maturity and high porosity is a favorable position for the development of the geological dessert, namely a region with the geological dessert evaluation index being more than or equal to a first preset index, which can be determined as a first dessert region, according to the decrease of the geological dessert evaluation index, the second dessert area and the third dessert area are also divided, the different classifications of different desserts facilitate accurate evaluation and mastering of the oil and gas resources of the current geology, so that an accurate evaluation result of the desserts of the geology is obtained, and the exploration and exploitation efficiency of the oil and gas resources is further improved.
Optionally, the obtaining of the multiple types of dessert evaluation parameters of the area to be determined includes:
and performing nuclear magnetic resonance experiments on the multiple types of experimental samples of the region to be determined to obtain the multiple types of porosities of the region to be determined.
Here, the embodiments of the present application determine a plurality of types of porosities through a nuclear magnetic resonance experiment, and specifically, a porosity log may be determined through a nuclear magnetic resonance experiment, the porosity log has a good response to the porosity of a reservoir, an effective porosity log prediction model may be established according to acoustic moveout, density, neutron log response and measured porosity, longitudinal and spatial comparison evaluation of reservoir physical properties is achieved, thereby determining accurate porosity data, and through accurate porosity data, accuracy of dessert evaluation is further improved, and further efficiency of oil and gas resource exploration is improved.
Optionally, the obtaining of the multiple types of dessert evaluation parameters of the area to be determined includes:
and carrying out conventional pyrolysis and distributed pyrolysis experiments on the multi-type experimental samples in the region to be determined, and carrying out light hydrocarbon recovery and heavy hydrocarbon compensation treatment to obtain the multi-type oil-containing property.
The oil content is determined by analyzing conventional pyrolysis, distributed pyrolysis, light hydrocarbon recovery and heavy hydrocarbon compensation, basic determination is carried out on the oil content of an experimental sample through the conventional pyrolysis and the distributed pyrolysis, influences caused by dissipation of hydrocarbon components are eliminated through the light hydrocarbon recovery and the heavy hydrocarbon compensation, the dissipation of the hydrocarbon components existing in the sample collection and storage processes and the experimental process is compensated into oil content parameters determined by the experiment, actual oil content information of the sample is truly reflected, the accuracy of determining the oil content is improved, and the accuracy of geological dessert evaluation is further improved.
Optionally, the obtaining of the multiple types of dessert evaluation parameters of the area to be determined includes:
and carrying out analysis and test on the rock core samples of the multiple types of experimental samples in the area to be determined to obtain multiple types of maturity.
Here, the embodiments of the present application perform analysis and test on core samples of multiple types of experimental samples to obtain multiple types of maturity, so as to obtain accurate maturity, thereby improving accuracy of determining a geological dessert.
Optionally, the obtaining of the multiple types of dessert evaluation parameters of the area to be determined includes:
and carrying out a rock pyrolysis experiment and a chloroform extraction experiment on the various experimental samples in the area to be determined to obtain the contents of various total organic carbon.
Here, the total organic carbon content can be determined through a rock pyrolysis experiment and a chloroform extraction experiment performed on an experimental sample, the experiment can measure the relationship between the total organic carbon content and a logging curve, an accurate total organic carbon content value can be obtained according to the relationship, and the accuracy of determining the geological dessert is further improved.
In a second aspect, embodiments of the present application provide a geological dessert evaluating apparatus, including:
the system comprises an acquisition module, a determination module and a processing module, wherein the acquisition module is used for acquiring multi-type dessert evaluation parameters of a region to be determined, and the dessert evaluation parameters comprise the total organic carbon content, the maturity, the porosity and the oil content of the region to be determined;
the first processing module is used for carrying out homogenization processing on each type of dessert evaluation parameters to obtain homogenized dessert evaluation parameters, wherein the homogenized dessert evaluation parameters comprise homogenized total organic carbon content, homogenized maturity, homogenized porosity and homogenized oil content;
the determining module is used for determining a geological dessert evaluation index according to a preset weight coefficient corresponding to each type of the homogenized dessert evaluation parameters and the homogenized dessert evaluation parameters;
and the second processing module is used for determining the exploration potential of the oil and gas resources in the region to be determined according to the geological dessert evaluation index.
Optionally, the second processing module is specifically configured to:
if the geological dessert evaluation index is larger than or equal to a first preset index, determining that the region to be determined is a first dessert region;
if the geological dessert evaluation index is smaller than a first preset index and larger than a second preset index, determining the region to be determined as a second dessert region;
if the geological dessert evaluation index is smaller than or equal to a second preset index, determining the region to be determined as a third dessert region;
and determining the exploration potential of the oil and gas resources in the region to be determined according to the dessert classification condition of the region to be determined.
Optionally, the obtaining module is specifically configured to:
and performing nuclear magnetic resonance experiments on the multiple types of experimental samples of the region to be determined to obtain the multiple types of porosities of the region to be determined.
Optionally, the obtaining module is specifically configured to:
and carrying out conventional pyrolysis and distributed pyrolysis experiments on the multi-type experimental samples in the region to be determined, and carrying out light hydrocarbon recovery and heavy hydrocarbon compensation treatment to obtain the multi-type oil-containing property.
Optionally, the obtaining module is specifically configured to:
and carrying out analysis and test on the rock core samples of the multiple types of experimental samples in the area to be determined to obtain multiple types of maturity.
Optionally, the obtaining module is specifically configured to:
the obtaining of the multiple types of dessert evaluation parameters of the to-be-determined area includes:
and carrying out a rock pyrolysis experiment and a chloroform extraction experiment on the various experimental samples in the area to be determined to obtain the contents of various total organic carbon.
In a third aspect, an embodiment of the present application provides a geological dessert evaluating apparatus, including: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the method for geologic sweet spot evaluation as set forth in the first aspect above and in various possible designs of the first aspect.
In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the geological dessert evaluation method according to the first aspect and various possible designs of the first aspect is implemented.
In a fifth aspect, embodiments of the present invention provide a computer program product comprising a computer program that, when executed by a processor, implements a method of geological dessert evaluation as set forth in the first aspect above and in various possible designs of the first aspect.
The geological dessert evaluating method, the device, the equipment and the storage medium provided by the embodiment of the application determine the geological dessert evaluating index according to the parameters of the total organic carbon content, the maturity, the porosity and the oil content of the region to be determined, firstly carry out homogenization treatment to eliminate errors when the geological dessert evaluating index is determined, set weights for the parameters in order to better reflect the influence of the parameters on the geological dessert evaluating index, accurately determine the geological dessert evaluating index of the region to be determined according to the preset weights by combining a plurality of key parameters influencing the geological dessert, accurately evaluate the geology according to the geological dessert evaluating index, conveniently search a dessert region with good oil and gas resources according to the evaluating result, and further improve the oil and gas resource exploitation efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a geological dessert evaluation system provided in an embodiment of the present application;
FIG. 2 is a schematic flow chart of a method for evaluating a geological dessert provided in the embodiments of the present application;
FIG. 3 is a schematic flow chart of another method for evaluating a geological dessert provided in an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a geological dessert evaluating device provided by the embodiment of the present application;
fig. 5 is a schematic structural diagram of a geological dessert evaluating device provided in the embodiment of the present application.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The terms "first," "second," "third," and "fourth," if any, in the description and claims of this application and the above-described figures are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
With the rapid development of global economy, the demand for petroleum and natural gas is increasing, and oil and gas as important strategic resources play an important role in the development of the world. Shale oil and gas resources are rich, sea-phase shale gas is developed and produced on a large scale, exploration, development and research on continental facies shale oil are still in a starting stage, and at present, the continental facies shale oil exploration and development face a plurality of challenges which are mainly reflected in the following aspects: the continental facies shale deposition phase change is fast, and the shale oil source storage heterogeneity is strong; secondly, the continental immature-low mature organic-rich shale has wide distribution, high shale oil viscosity and poor flowability; and thirdly, the continental facies shale has weak diagenetic effect, high clay mineral content and poor compressibility, and the key of the continental facies shale oil exploration and development lies in searching for a geological dessert area enriched with oil gas.
In the prior art, there are mainly the following three methods for evaluating shale oil geological desserts: a comprehensive factor superposition method, an earthquake prediction method and a comprehensive evaluation index method. The connotation of the comprehensive factor superposition method is that two or more key parameters of the organic matter abundance, maturity, oil content, movable oil quantity and other parameters of the region are selected according to the difference of geological conditions of different regions, and the favorable regions of the key geological parameters are superposed to further determine the shale oil geological dessert region, so that the method can evaluate the dessert region in a plane range, but only qualitatively evaluate the shale oil geological dessert region due to the difference of evaluation indexes and mutual influence among the indexes, and the precision is relatively low; the earthquake prediction method is characterized in that rock physical analysis data are utilized to optimize sensitive earthquake attribute parameters, inversion is carried out on the sensitive earthquake attribute parameters to obtain the dominant reservoir distribution of the continental facies shale oil layer and characteristic information such as lithofacies, organic matter abundance, physical properties, oil content and the like, a dessert earthquake characterization model is further constructed, and the shale oil dessert plane spread characteristics are predicted, so that the method is low in prediction resolution, low in longitudinal precision and difficult to meet the requirements of single-well dessert evaluation; the comprehensive evaluation index method is characterized in that weights of key geological parameters influencing shale oil geological desserts are determined, then quantitative assignment and summation are carried out on the parameters, and therefore the shale oil geological desserts are quantitatively analyzed.
Aiming at the technical problems that the geological dessert is difficult to accurately determine and the accuracy of the geological dessert evaluation is poor in the prior art, the embodiment of the application provides a method, a device, equipment and a storage medium for evaluating the geological dessert, a comprehensive index evaluation method is adopted, evaluation parameters such as total organic carbon content, maturity, porosity and oil content are used for evaluating longitudinal geological dessert sections, each evaluation index is normalized in order to eliminate the influence of different parameter dimensions, different weights are given to the evaluation indexes according to grading standards, and the geological dessert is evaluated.
Optionally, fig. 1 is a schematic structural diagram of a geological dessert evaluation system provided in an embodiment of the present application. In fig. 1, the above-described architecture includes at least one of a receiving device 101, a processor 102, and a display device 103.
It is to be understood that the illustrated structure of the embodiments of the present application does not constitute a specific limitation on the architecture of the geological dessert evaluation system. In other possible embodiments of the present application, the foregoing architecture may include more or less components than those shown in the drawings, or combine some components, or split some components, or arrange different components, which may be determined according to practical application scenarios, and is not limited herein. The components shown in fig. 1 may be implemented in hardware, software, or a combination of software and hardware.
In a specific implementation process, the receiving device 101 may be an input/output interface or a communication interface.
The processor 102 may obtain evaluation parameters such as total organic carbon content, maturity, porosity, oil content, etc., evaluate the longitudinal geological dessert segment by calculating the parameters, normalize each evaluation index to eliminate the influence of different parameter dimensions, assign different weights to the evaluation indexes according to the grading standard, and evaluate the geological dessert.
The display device 103 may be used to display the above results and the like.
The display device may also be a touch display screen for receiving user instructions while displaying the above-mentioned content to enable interaction with a user.
It should be understood that the processor may be implemented by reading instructions in the memory and executing the instructions, or may be implemented by a chip circuit.
In addition, the network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and it can be known by a person skilled in the art that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
The technical scheme of the application is described in detail by combining specific embodiments as follows:
optionally, fig. 2 is a schematic flow chart of a method for evaluating a geological dessert provided in the embodiment of the present application. The execution subject of the embodiment of the present application may be the processor 102 in fig. 1, and the specific execution subject may be determined according to an actual application scenario. As shown in fig. 2, the method comprises the steps of:
s201: and acquiring multiple types of dessert evaluation parameters of the area to be determined.
Wherein the dessert evaluation parameters include the total organic carbon content, the ripeness, the porosity and the oil content of the area to be determined.
Here, each type of normalized dessert evaluation parameter in the embodiments of the present application may include different types of normalized dessert evaluation parameters of the plurality of experimental samples. Wherein the types of the homogenized dessert evaluation parameters include homogenized total organic carbon content, homogenized maturity, homogenized porosity, and homogenized oil content.
Optionally, the obtaining of multiple types of dessert evaluation parameters of the area to be determined includes:
and performing nuclear magnetic resonance experiments on multiple types of experimental samples of the region to be determined to obtain the porosity of the multiple types of regions to be determined.
The multiple types of test samples may include test samples in different collection areas or test samples in different time periods in the same area, and may also include the same batch of test samples.
Here, the embodiments of the present application determine a plurality of types of porosities through a nuclear magnetic resonance experiment, and specifically, a porosity log may be determined through a nuclear magnetic resonance experiment, the porosity log has a good response to the porosity of a reservoir, an effective porosity log prediction model may be established according to acoustic moveout, density, neutron log response and measured porosity, longitudinal and spatial comparison evaluation of reservoir physical properties is achieved, thereby determining accurate porosity data, and through accurate porosity data, accuracy of dessert evaluation is further improved, and further efficiency of oil and gas resource exploration is improved.
Optionally, the obtaining of multiple types of dessert evaluation parameters of the area to be determined includes:
and carrying out conventional pyrolysis and distributed pyrolysis experiments on various experimental samples in the region to be determined, and carrying out light hydrocarbon recovery and heavy hydrocarbon compensation treatment to obtain various oil properties.
The oil content is determined by analyzing conventional pyrolysis, distributed pyrolysis, light hydrocarbon recovery and heavy hydrocarbon compensation, basic determination is carried out on the oil content of an experimental sample through the conventional pyrolysis and the distributed pyrolysis, influences caused by dissipation of hydrocarbon components are eliminated through the light hydrocarbon recovery and the heavy hydrocarbon compensation, the dissipation of the hydrocarbon components existing in the sample collection and storage processes and the experimental process is compensated into oil content parameters determined by the experiment, actual oil content information of the sample is truly reflected, the accuracy of determining the oil content is improved, and the accuracy of geological dessert evaluation is further improved.
Optionally, the obtaining of multiple types of dessert evaluation parameters of the area to be determined includes:
and performing analysis and test on the rock core samples of the multiple types of experimental samples in the area to be determined to obtain the multiple types of maturity.
Here, the embodiments of the present application perform analysis and test on core samples of multiple types of experimental samples to obtain multiple types of maturity, so as to obtain accurate maturity, thereby improving accuracy of determining a geological dessert.
Optionally, the obtaining of multiple types of dessert evaluation parameters of the area to be determined includes:
and performing a rock pyrolysis experiment and a chloroform extraction experiment on multiple types of experimental samples in the area to be determined to obtain the content of multiple types of total organic carbon.
Here, the total organic carbon content can be determined through a rock pyrolysis experiment and a chloroform extraction experiment performed on an experimental sample, the experiment can measure the relationship between the total organic carbon content and a logging curve, an accurate total organic carbon content value can be obtained according to the relationship, and the accuracy of determining the geological dessert is further improved.
S202: and carrying out homogenization treatment on each type of dessert evaluation parameters to obtain homogenized dessert evaluation parameters.
Wherein the homogenized dessert evaluation parameters include homogenized total organic carbon content, homogenized maturity, homogenized porosity, and homogenized oiliness.
Here, the embodiments of the present application may perform homogenization processing on multiple types of data obtained for each dessert evaluation parameter, so as to obtain a homogenized total organic carbon content, a homogenized maturity, a homogenized porosity, and a homogenized oil content.
Optionally, the formula of the homogenization method is as follows:
wherein S is a uniform dessert evaluation parameter; x is a dessert evaluation parameter needing homogenization; xmaxAnd XminEach representing the maximum value of the sweet spot evaluation parameter.
S203: and determining the geological dessert evaluation index according to the preset weight coefficient and the homogenization dessert evaluation parameter corresponding to each type of homogenization dessert evaluation parameter.
Optionally, the preset weight coefficient may be determined according to actual conditions, and the embodiment of the present application is not particularly limited.
The preset weight coefficient is determined according to the influence condition of different dessert evaluation parameters on the geological dessert, and different weight coefficients can be determined according to the conditions of different geology.
In one possible implementation, the determination of the geological sweet spot evaluation index is achieved using the following formula:
wherein GS is a geological dessert evaluation index and is dimensionless; siTo uniform dessert evaluation parameters; sLThe weight coefficient is used for each parameter.
Optionally, by analyzing the dessert characteristics of the oil wells in different areas by using the method, the distribution characteristics of each evaluation index of the dessert in the area to be determined are analyzed, and by using a comprehensive factor superposition method, the total organic carbon content, the maturity, the porosity and the oil content are superposed, so that the planar dessert can be analyzed.
S204: and determining the exploration potential of the oil and gas resources in the region to be determined according to the geological dessert evaluation index.
Optionally, the larger the geological dessert evaluation index determined according to the method is, the better the development condition of the oil and gas resources in the region to be determined is determined to be, and the method is suitable for development.
According to the method and the device, the geological dessert evaluation index is determined according to the parameters of the total organic carbon content, the maturity, the porosity and the oil content of the area to be determined, homogenization treatment is firstly carried out during the determination of the geological dessert evaluation index to eliminate errors, in order to better reflect the influence of each parameter on the geological dessert evaluation index, the weight is set for each parameter, according to the preset weight, several key parameters influencing the geological dessert are combined, the geological dessert evaluation index of the area to be determined is accurately determined, according to the geological dessert evaluation index, the geological dessert area with good oil and gas resources can be conveniently found according to the evaluation result, and the exploitation efficiency of the oil and gas resources is further improved.
In a possible implementation manner, the embodiment of the present application may further perform hierarchical classification on the geological dessert, and accordingly, fig. 3 is a flowchart of another geological dessert evaluation method provided by the embodiment of the present application, and as shown in fig. 3, the method includes:
s301: and acquiring multiple types of dessert evaluation parameters of the area to be determined.
Wherein the dessert evaluation parameters include the total organic carbon content, the ripeness, the porosity and the oil content of the area to be determined.
S302: and carrying out homogenization treatment on each type of dessert evaluation parameters to obtain homogenized dessert evaluation parameters.
Wherein the homogenized dessert evaluation parameters include homogenized total organic carbon content, homogenized maturity, homogenized porosity, and homogenized oiliness.
S303: and determining the geological dessert evaluation index according to the preset weight coefficient and the homogenization dessert evaluation parameter corresponding to each type of homogenization dessert evaluation parameter.
The implementation manners of steps S301 to S303 are similar to the implementation manners of steps S201 to S203, and are not described herein again.
S304: if the geological dessert evaluation index is larger than or equal to a first preset index, determining that the region to be determined is a first dessert region; if the geological dessert evaluation index is smaller than a first preset index and larger than a second preset index, determining that the region to be determined is a second dessert region; and if the geological dessert evaluation index is less than or equal to a second preset index, determining the region to be determined as a third dessert region.
It is understood that the first preset index and the second preset index may be determined according to actual situations, and the embodiments of the present application are not particularly limited.
Exemplarily, the influence degree of the parameters such as the total organic carbon content, the maturity, the porosity and the oil content on the total hydrocarbon content and the oil yield is large, the parameters are main factors for shale oil enrichment and are in a direct proportion relation, the following table is an example of a grading evaluation standard of desserts, the first type of desserts are type I in the table, the second type of desserts are type II in the table, and the third type of desserts are type III in the table.
S305: and determining the exploration potential of the oil and gas resources in the region to be determined according to the dessert classification condition of the region to be determined.
According to the method, the geological dessert evaluation index is determined by combining several parameters of the total organic carbon content, the maturity, the porosity and the oil content, and the classification of the geological dessert is performed according to the geological dessert evaluation index, wherein the development intervals with high organic matter abundance, high oil content, high maturity and high porosity are favorable positions for the development of the geological dessert, namely, the region where the geological dessert evaluation index is greater than or equal to a first preset index can be determined as a first dessert region, and the region is further divided into a second dessert region and a third dessert region according to the reduction of the geological dessert evaluation index, wherein different classifications of different desserts facilitate accurate evaluation and grasp of the oil and gas resources of the current geology, so that an accurate geological dessert evaluation result is obtained, and the exploration and exploitation efficiency of the oil and gas resources is further improved.
Fig. 4 is a schematic structural diagram of a geological dessert evaluating device provided in an embodiment of the present application, and as shown in fig. 4, the device in the embodiment of the present application includes: an acquisition module 401, a first processing module 402, a determination module 403 and a second processing module 404. The geological sweet spot evaluation device may be the processor 102 itself, or a chip or integrated circuit that implements the functions of the processor 102. It should be noted here that the division of the obtaining module 401, the first processing module 402, the determining module 403, and the second processing module 404 is only a division of logical functions, and the two may be integrated or independent physically.
The system comprises an acquisition module, a determination module and a display module, wherein the acquisition module is used for acquiring multiple types of dessert evaluation parameters of a region to be determined, and the dessert evaluation parameters comprise the total organic carbon content, the maturity, the porosity and the oil content of the region to be determined;
the first processing module is used for carrying out homogenization processing on each type of dessert evaluation parameters to obtain homogenized dessert evaluation parameters, wherein the homogenized dessert evaluation parameters comprise homogenized total organic carbon content, homogenized maturity, homogenized porosity and homogenized oil content;
the determining module is used for determining a geological dessert evaluation index according to the preset weight coefficient and the homogenization dessert evaluation parameter corresponding to each type of homogenization dessert evaluation parameter;
and the second processing module is used for determining the development condition of the oil and gas resources in the area to be determined according to the geological dessert evaluation index.
Optionally, the second processing module is specifically configured to:
if the geological dessert evaluation index is larger than or equal to a first preset index, determining that the region to be determined is a first dessert region;
if the geological dessert evaluation index is smaller than a first preset index and larger than a second preset index, determining that the region to be determined is a second dessert region;
if the geological dessert evaluation index is smaller than or equal to a second preset index, determining the region to be determined as a third dessert region;
and determining the exploration potential of the oil and gas resources in the region to be determined according to the dessert classification condition of the region to be determined.
Optionally, the obtaining module is specifically configured to:
and performing nuclear magnetic resonance experiments on multiple types of experimental samples of the region to be determined to obtain the porosity of the multiple types of regions to be determined.
Optionally, the obtaining module is specifically configured to:
and carrying out conventional pyrolysis and distributed pyrolysis experiments on various experimental samples in the region to be determined, and carrying out light hydrocarbon recovery and heavy hydrocarbon compensation treatment to obtain various oil properties.
Optionally, the obtaining module is specifically configured to:
and performing analysis and test on the rock core samples of the multiple types of experimental samples in the area to be determined to obtain the multiple types of maturity.
Optionally, the obtaining module is specifically configured to:
obtaining multiple types of dessert evaluation parameters of the region to be determined, including:
and performing a rock pyrolysis experiment and a chloroform extraction experiment on multiple types of experimental samples in the area to be determined to obtain the content of multiple types of total organic carbon.
Fig. 5 is a schematic structural diagram of a geological dessert evaluating device provided in the embodiment of the present application. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not limiting to the implementations of the present application described and/or claimed herein.
As shown in fig. 5, the geological sweet spot evaluation apparatus includes: a processor 501 and a memory 502, the various components being interconnected using different buses, and may be mounted on a common motherboard or in other manners as desired. The processor 501 may process instructions executed within the geological sweet spot evaluation equipment, including instructions for graphical information stored in or on a memory for display on an external input/output device (such as a display device coupled to an interface). In other embodiments, multiple types of processors and/or multiple buses may be used, along with multiple types of memory and multiple types of memory, if desired. In fig. 5, one processor 501 is taken as an example.
The memory 502, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the methods of the geological dessert evaluation device in the embodiments of the present application (e.g., the acquisition module 401, the first processing module 402, the determination module 403, and the second processing module 404 shown in fig. 4). The processor 501 executes various functional applications of the server and data processing by running non-transitory software programs, instructions, and modules stored in the memory 502, that is, the method of implementing the geological sweet spot evaluation apparatus in the above method embodiments.
The geological dessert evaluating apparatus may further include: an input device 503 and an output device 504. The processor 501, the memory 502, the input device 503 and the output device 504 may be connected by a bus or other means, and fig. 5 illustrates the connection by a bus as an example.
The input device 503 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the geological dessert evaluating apparatus, such as a touch screen, keypad, mouse, or various types of mouse buttons, trackballs, joysticks, and like input devices. The output 504 may be an output device such as a display device of the geological dessert evaluating apparatus. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.
The geological dessert evaluating device in the embodiment of the present application may be used to execute the technical solutions in the method embodiments of the present application, and the implementation principle and the technical effect are similar, which are not described herein again.
Embodiments of the present application further provide a computer-readable storage medium, in which computer-executable instructions are stored, and when executed by a processor, the computer-executable instructions are used to implement any one of the above-mentioned geological dessert evaluation methods.
Embodiments of the present application also provide a computer program product comprising a computer program for implementing any one of the above methods of geologic sweet spot evaluation when executed by a processor.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, multiple types of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A method for evaluating a geological dessert, comprising:
obtaining multi-type dessert evaluation parameters of a region to be determined, wherein the dessert evaluation parameters comprise the total organic carbon content, the maturity, the porosity and the oil content of the region to be determined;
homogenizing each type of dessert evaluation parameter to obtain homogenized dessert evaluation parameters, wherein the homogenized dessert evaluation parameters comprise homogenized total organic carbon content, homogenized maturity, homogenized porosity and homogenized oil content;
determining a geological dessert evaluation index according to a preset weight coefficient corresponding to each type of the homogenized dessert evaluation parameters and the homogenized dessert evaluation parameters;
and determining the exploration potential of the oil and gas resources in the region to be determined according to the geological dessert evaluation index.
2. The method of claim 1, wherein determining the exploration potential of the hydrocarbon resources in the area to be determined according to the geological dessert evaluation index comprises:
if the geological dessert evaluation index is larger than or equal to a first preset index, determining that the region to be determined is a first dessert region;
if the geological dessert evaluation index is smaller than a first preset index and larger than a second preset index, determining the region to be determined as a second dessert region;
if the geological dessert evaluation index is smaller than or equal to a second preset index, determining the region to be determined as a third dessert region;
and determining the exploration potential of the oil and gas resources in the region to be determined according to the dessert classification condition of the region to be determined.
3. The method of claim 1, wherein the obtaining of the multi-type dessert evaluation parameters of the area to be determined comprises:
and carrying out rock organic carbon determination experiments on the various types of experimental samples in the region to be determined to obtain the contents of various types of total organic carbon.
4. The method of claim 1, wherein the obtaining of the multi-type dessert evaluation parameters of the area to be determined comprises:
and carrying out analysis and test on the rock core samples of the multiple types of experimental samples in the area to be determined to obtain multiple types of maturity.
5. The method of claim 1, wherein the obtaining of the multi-type dessert evaluation parameters of the area to be determined comprises:
and performing nuclear magnetic resonance experiments on the multiple types of experimental samples of the region to be determined to obtain the multiple types of porosities of the region to be determined.
6. The method according to any one of claims 1 to 5, wherein the obtaining of the multiple types of dessert evaluation parameters of the area to be determined comprises:
and carrying out conventional pyrolysis and distributed pyrolysis experiments on the multi-type experimental samples in the region to be determined, and carrying out light hydrocarbon recovery and heavy hydrocarbon compensation treatment to obtain the multi-type oil-containing property.
7. A geological dessert evaluating apparatus, comprising:
the system comprises an acquisition module, a determination module and a processing module, wherein the acquisition module is used for acquiring multi-type dessert evaluation parameters of a region to be determined, and the dessert evaluation parameters comprise the total organic carbon content, the maturity, the porosity and the oil content of the region to be determined;
the first processing module is used for carrying out homogenization processing on each type of dessert evaluation parameters to obtain homogenized dessert evaluation parameters, wherein the homogenized dessert evaluation parameters comprise homogenized total organic carbon content, homogenized maturity, homogenized porosity and homogenized oil content;
the determining module is used for determining a geological dessert evaluation index according to a preset weight coefficient corresponding to each type of the homogenized dessert evaluation parameters and the homogenized dessert evaluation parameters;
and the second processing module is used for determining the exploration potential of the oil and gas resources in the region to be determined according to the geological dessert evaluation index.
8. A geological dessert evaluating apparatus, comprising:
at least one processor; and
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 6.
9. A computer readable storage medium having computer executable instructions stored thereon which, when executed by a processor, are configured to implement a method of geological dessert evaluation as claimed in any one of claims 1 to 6.
10. A computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the method of any one of claims 1 to 6.
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