CN-119716984-B - Graphic comparison method, system and equipment for geological success rate of oil and gas exploration target

CN119716984BCN 119716984 BCN119716984 BCN 119716984BCN-119716984-B

Abstract

The invention relates to the technical field of petroleum and natural gas exploration and discloses a graphical comparison method, a system and equipment for geological success rate of an oil and gas exploration target, comprising the steps of reading well drilling geological information and oil and gas reservoir condition parameter factors of corresponding seismic data geological interpretation results to compile an oil and gas reservoir condition parameter factor plan; the method comprises the steps of establishing a scoring basis of the development probability of the reservoir condition according to regional statistics results of the development relation between the parameter factors and the reservoir condition, converting the reservoir condition parameter factor plane graph into a reservoir condition development probability plane graph, calculating each development probability product in the reservoir condition development probability plane graph to obtain a reservoir condition development probability plane graph of the oil and gas complex, and overlapping the reservoir condition development probability plane graph and the plane position and trap condition scoring of the oil and gas exploration target to obtain a geological success rate plane distribution map of the oil and gas exploration target. The invention improves the geological success rate evaluation efficiency and is convenient for comparison and analysis of evaluation results.

Inventors

Zhu Dancheng
HUANG JINLA
Peng Zixiao
ZENG BANG
QU JIANHUA
XIE EN
ZHANG ZHENGHONG
Ren Benbing
WANG HE
SU YUN
ZHANG KE
LI YUYUAN

Assignees

成都北方石油勘探开发技术有限公司

Dates

Publication Date: 20260512
Application Date: 20241213

Claims (9)

1. A graphical comparison method of geological success rate of an oil and gas exploration target, comprising: reading well drilling geological information and oil and gas reservoir condition parameter factors of corresponding seismic data geological interpretation results to compile an oil and gas reservoir condition parameter factor plan; Establishing a scoring basis of the development probability of the reservoir conditions by referring to regional statistics results of the development relationship between the parameter factors and the reservoir conditions of the oil and gas, which are obtained based on drilling information of which the oil and gas exploration targets to be evaluated are located in the same geological unit of the structure but are out of the ore weight range; the specific method for establishing the scoring basis of the development probability of the hiding condition comprises the following steps: Scoring the development probability of the hydrocarbon source condition according to the statistical result of the hydrocarbon supply capacity region corresponding to the reflectivity of the hydrocarbon source petrography body; the hydrocarbon source conditional development probability was scored as: , ; The development probability of the reservoir conditions is scored according to the statistical result of rock reservoir validity areas corresponding to various types of sediments; the reservoir conditional development probability was scored as: ; the development probability of the cap layer condition is scored according to the statistical result of the oil gas plugging validity area corresponding to the cap layer thickness; The cap layer conditional development probability was scored as: , ; Scoring the development probability of the conducting condition according to the regional statistics result of the relation between the distance from the oil source fracture and the fault conducting effectiveness; The scoring of the development probability of the infusion condition is as follows: , ; according to the scoring basis, converting the oil gas reservoir condition parameter factor plane graph into an oil gas reservoir condition development probability plane graph; Overlapping the development probability plane diagrams of the oil and gas reservoir conditions, and calculating the product of each development probability in the development probability plane diagrams of the oil and gas reservoir conditions to obtain an oil and gas comprehensive reservoir condition development probability plane diagram; And overlapping the hydrocarbon synthesis reservoir condition development probability plane graph with the plane position and trap condition score of the hydrocarbon exploration target, and calculating the product to obtain a geological success rate plane distribution map of the hydrocarbon exploration target.
2. The graphic comparison method of geological success rate of oil and gas exploration targets according to claim 1, wherein the oil and gas reservoir conditions corresponding to the well geological information comprise hydrocarbon source conditions, reservoir conditions and cap layer conditions, the oil and gas reservoir conditions corresponding to the seismic data geological interpretation results comprise hydrocarbon source conditions, reservoir conditions, cap layer conditions and conductivity conditions, parameter factors corresponding to the hydrocarbon source conditions are the vitrinite reflectivity of hydrocarbon source rocks, parameter factors corresponding to the reservoir conditions are the sedimentary facies of stratum to which the reservoir belongs, parameter factors corresponding to the cap layer conditions are the thickness of stratum to which the cap layer belongs, and parameter factors corresponding to the conductivity conditions are the distribution of oil source fracture.
3. The graphic comparison method for geological success rate of oil and gas exploration targets according to claim 2, wherein the specific construction process for compiling the oil and gas reservoir condition parameter factor plan is as follows: inputting oil and gas reservoir condition parameter factors corresponding to the drilling geological information related to regional drilling in a data point form, and acquiring the drilling in which the data range is the range of the block ore weight to which the target to be evaluated belongs; And inputting the oil and gas reservoir condition parameter factors corresponding to the seismic data geological interpretation results corresponding to the oil and gas exploration targets in a data grid form, and acquiring interpretation results with a data range being the range of the ore rights of the block to which the targets to be evaluated belong, thereby forming an oil and gas reservoir condition parameter factor plan.
4. The method for comparing the geological success rate of the oil and gas exploration targets according to claim 1, wherein the specific process of converting the oil and gas reservoir condition parameter factor plane graph into the oil and gas reservoir condition development probability plane graph according to the scoring basis is as follows: Fitting the corresponding relation between each parameter factor data in the oil and gas reservoir condition parameter factor plan and the oil and gas reservoir condition development probability, so as to obtain a corresponding rule of the parameter factors and the oil and gas reservoir condition development probability, calculating the development probability in the ore weight range according to the corresponding rule, and forming the oil and gas reservoir condition development probability plan, wherein the acquired range of each parameter factor data is the drilling well in the geological unit of the structure to which the target to be evaluated belongs.
5. The graphic comparison method for geological success rate of oil and gas exploration targets according to claim 4, wherein the specific process of calculating each development probability product in the development probability plan of oil and gas reservoir conditions to obtain the development probability plan of oil and gas comprehensive reservoir conditions is as follows: Obtaining the oil and gas comprehensive reservoir condition development probability according to a formula P H =P S *P R *P T *P C , wherein P S is hydrocarbon source condition development probability, P R is reservoir condition development probability, P T is cap layer condition development probability, P C is transportation and conduction condition development probability, and P H is oil and gas comprehensive reservoir condition development probability; and drawing a plan view of the oil and gas comprehensive reservoir condition development probability according to the oil and gas comprehensive reservoir condition development probability.
6. The method for comparing the geological success rate of the oil and gas exploration target according to claim 5, wherein the specific process of overlapping the oil and gas comprehensive reservoir condition development probability plan with the plane position and trap condition score of the oil and gas exploration target and calculating the product to obtain the geological success rate plane distribution map of the oil and gas exploration target is as follows: Obtaining the geological success rate of the oil and gas exploration target according to a formula P g =P H *P A , wherein P A is the trap condition score of the exploration target; and drawing a geological success rate plane distribution map of the oil and gas exploration target according to the geological success rate of the oil and gas exploration target.
7. The method for comparing geologic success rate of oil and gas exploration targets according to claim 6, wherein the specific acquisition process of the trap condition score is that the score is performed according to the structural amplitude of the trap of the oil and gas exploration targets which is interpreted by earthquake and the regional statistics result of the relation between the structural amplitude of the trap which is drilled in the region and the oil and gas content.
8. A graphic comparison system for the geological success rate of an oil and gas exploration target, for implementing a graphic comparison method for the geological success rate of an oil and gas exploration target according to any one of claims 1 to 7, comprising: The oil and gas reservoir condition parameter factor plan drawing module is used for reading the drilling geological information and the parameter factors of the oil and gas reservoir conditions of the corresponding seismic data geological interpretation results so as to compile an oil and gas reservoir condition parameter factor plan; The scoring basis construction module is used for referring to the regional statistics result of the relationship between the parameter factors and the oil and gas reservoir condition development, and establishing a scoring basis of the reservoir condition development probability; The oil gas reservoir condition development probability plane graph conversion module is used for converting the oil gas reservoir condition parameter factor plane graph into an oil gas reservoir condition development probability plane graph according to the scoring basis; The oil-gas comprehensive hiding condition development probability plan construction module is used for superposing the development probability plan of the oil-gas hiding condition, and calculating the product of each development probability in the development probability plan of the oil-gas hiding condition to obtain an oil-gas comprehensive hiding condition development probability plan; the oil and gas exploration target geological success rate plane distribution diagram construction module is used for superposing the oil and gas comprehensive synthetic reservoir condition development probability plane diagram with the plane position and trap condition score of the oil and gas exploration target, and obtaining the oil and gas exploration target geological success rate plane distribution diagram through product calculation.
9. An electronic device comprising at least one processor and a memory communicatively coupled to the at least one processor, wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a graphical comparison of a geological success rate of a hydrocarbon exploration target as described in any one of claims 1 to 7.

Description

Graphic comparison method, system and equipment for geological success rate of oil and gas exploration target Technical Field The invention relates to the technical field of petroleum and natural gas exploration, in particular to a graphical comparison method, a graphical comparison system and graphical comparison equipment for geological success rate of an oil and gas exploration target. Background The oil and gas exploration target is potential oil and gas containing trap in the oil and gas exploration block, which is determined through geological and geophysical prospecting technology research. The geological success rate of the oil and gas exploration targets is represented by the data of the geological reliability evaluation results of technicians, so that the exploration favorable degree of each target can be reflected, a drilling scheme is optimized, the petroleum enterprise manager can be helped to know the resource potential of the block, and reasonable exploration operation planning can be formulated. Therefore, the evaluation of the geological success rate of the exploration targets is an important link of oil and gas exploration project management. The conventional technical scheme for evaluating the geological success rate of the oil and gas exploration target is to draw a plurality of parameter factors related to oil and gas reservoir, assign the development probability of each parameter factor through geological research, and the product of the development probabilities of the parameter factors is the geological success rate of the exploration target. However, the method has the problems that the value process of the development probability of the oil and gas reservoir parameter factors has subjectivity, the plane contrast of geological success rates of different exploration targets in the block is not visual, and the like, and is not beneficial to project management personnel to understand technical processes and results of schemes and to transversely compare evaluation results. In order to improve objectivity and visibility of the evaluation result of the geological success rate of the oil and gas exploration target, and facilitate visual understanding and comparison of related data by oil and gas exploration project management personnel, a graphical comparison method of the geological success rate of the oil and gas exploration target needs to be established. Disclosure of Invention The invention provides a graphical comparison method, a system and equipment for geological success rate of oil and gas exploration targets, which solve the problems that the value process of the development probability of oil and gas reservoir parameter factors in the prior art has subjectivity, and the reservoir conditions of different oil and gas exploration targets are not visually compared with the geological success rate plane. The invention is realized by the following technical scheme: A graphical comparison method of geological success rate of an oil and gas exploration target, comprising: reading well drilling geological information and oil and gas reservoir condition parameter factors of corresponding seismic data geological interpretation results to compile an oil and gas reservoir condition parameter factor plan; Establishing a scoring basis of the development probability of the reservoir formation condition according to the regional statistical result of the development relationship between the parameter factors and the reservoir formation condition of the oil gas; according to the scoring basis, converting the oil gas reservoir condition parameter factor plane graph into an oil gas reservoir condition development probability plane graph; Overlapping the development probability plane diagrams of the oil and gas reservoir conditions, and calculating the product of each development probability in the development probability plane diagrams of the oil and gas reservoir conditions to obtain an oil and gas comprehensive reservoir condition development probability plane diagram; And overlapping the hydrocarbon synthesis reservoir condition development probability plane graph with the plane position and trap condition score of the hydrocarbon exploration target, and calculating the product to obtain a geological success rate plane distribution map of the hydrocarbon exploration target. As optimization, the hydrocarbon reservoir conditions corresponding to the drilling geological information comprise hydrocarbon source conditions, reservoir conditions and cap layer conditions, the hydrocarbon reservoir conditions corresponding to the seismic data geological interpretation results comprise hydrocarbon source conditions, reservoir conditions, cap layer conditions and conducting conditions, wherein parameter factors corresponding to the hydrocarbon source conditions are the specular reflectivity of hydrocarbon source rocks, parameter factors corresponding to the reservoir conditions are sedimentary phases of