CN-121995522-A - Skid break structure simulation method, system, device, storage medium and program product

CN121995522ACN 121995522 ACN121995522 ACN 121995522ACN-121995522-A

Abstract

The application provides a walking slip fracture structure simulation method, a system and equipment, a storage medium and a program product. The method comprises the steps of obtaining physical simulation data and numerical simulation data of a target area with a sliding fracture structure, obtaining deformation characteristic data of each stratum of the target area, sent by simulation equipment, wherein the deformation characteristic data are obtained after the simulation equipment simulates a stratum structure deformation process of the target area based on the physical simulation data from processing equipment, simulating a stratum fracture evolution process of the target area based on the numerical simulation data to obtain fracture morphology data of each stratum of the target area, the fracture morphology data are used for indicating morphological changes caused by fracture of each stratum under a plurality of evolution stages, and a sliding fracture model related to the target area is constructed based on the deformation characteristic data and the fracture morphology data, and the sliding fracture model is used for describing the sliding fracture structure of the target area. The method improves the accuracy of the simulation of the sliding fracture structure.

Inventors

ZHANG YINTAO
MA YINGLONG
XU MENGJIA
XIE ZHOU
SUN CHONG
KANG PENGFEI
LIU RUIDONG
YUAN JINGYI
LI TING
WANG XUAN
ZHENG MINGJUN

Assignees

中国石油天然气股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (12)

1. A method of simulating a slip break configuration, comprising: Acquiring physical simulation data and numerical simulation data of a target area with a sliding fracture structure, wherein the physical simulation data are used for simulating related data required by a formation structure deformation process; The deformation characteristic data of each stratum of the target area are obtained, and the deformation characteristic data are obtained after the stratum structure deformation process of the target area is simulated based on the physical simulation data; Simulating a stratum fracture evolution process of the target area based on the numerical simulation data to obtain fracture morphology data of each stratum of the target area, wherein the fracture morphology data are used for indicating morphology changes caused by fracture of each stratum under a plurality of evolution stages; And acquiring a sliding fracture model related to the target area based on the deformation characteristic data and the fracture morphology data, wherein the sliding fracture model is used for describing a sliding fracture structure of the target area.
2. The method of claim 1, wherein the obtaining deformation characteristic data of each stratum of the target area comprises: And applying a construction acting force for indicating relative movement of two sides of a fault to the stratum simulation model so as to simulate a construction deformation process of the target area, and performing slice analysis on the simulated stratum simulation model so as to obtain deformation characteristic data of each stratum, wherein the deformation characteristic data comprises profile deformation characteristics.
3. The method of claim 1, wherein the acquiring physical simulation data of the target area having the skid fracture configuration comprises: Acquiring seismic data and logging data of the target area; determining geological feature data based on the seismic data; Determining a geological horizon and geological structure data of each reflecting layer based on the logging data, the geological feature data and reflecting layer features recorded in the seismic data; The physical simulation data is determined based on the geologic structure data.
4. The method of claim 3, wherein the acquiring numerical simulation data of the target area having the skid fracture configuration comprises: Acquiring characteristic parameters of spherical particles, and determining model parameters of a particle contact model and mechanical parameters between the spherical particles and boundaries, wherein the spherical particles are used for simulating rocks in a stratum with a sliding fracture structure in the target area; determining the simulation thickness associated with each stratum in any appointed evolution stage based on the geological structure data; Numerical simulation data is determined based on the characteristic parameters, the model parameters, the mechanical parameters, and the simulated thickness.
5. The method of claim 4, wherein simulating formation fracture evolution processes of the target zone based on the numerical simulation data to obtain fracture morphology data for each formation of the target zone comprises: Marking broken discs positioned at two sides of a fault in the sliding fracture structure by using spherical particles with distinguishing marks based on the numerical simulation data, and filling with particle samples to form a particle model; And performing motion simulation on the spherical particles related to each broken disc in the particle model according to preset motion conditions, and simulating the fracture evolution process of the sliding fracture structure in the target area in a plurality of evolution stages based on the simulation thickness to obtain fracture morphology data of each stratum, wherein the motion conditions comprise the same motion speed and the same relative motion direction, and the fracture morphology data comprise structural morphology data, strain data and stress data in the plurality of evolution stages.
6. The method according to claim 1, wherein the step of acquiring a step fracture model with respect to the target region based on the deformation characteristic data and the fracture morphology data includes: determining a construction interpretation model based on the seismic data, the interpretation model being used to indicate a planar interpretation and a spatial morphology of the walk-slip fracture construction; and constructing a sliding fracture model about the sliding fracture structure based on the deformation characteristic data, the fracture morphology data, the geological structure data and the interpretation model.
7. The method of claim 1, wherein the constructing a skid fracture model for the target region based on the deformation characteristic data and the fracture morphology data, further comprises: Extracting a seismic profile feature of the target region based on the seismic data; Calculating the similarity between the level slice for the walk-slip fracture model and the seismic profile features; and when the similarity is lower than a preset similarity threshold, adjusting simulation parameters used in the simulation process until the similarity exceeds the similarity threshold, wherein the simulation parameters comprise one or more of the physical simulation data, the numerical simulation data, the construction acting force and the movement speed.
8. The slip break configuration simulation method according to any one of claims 1 to 7, further comprising: The deformation characteristic data is utilized to visually display the construction deformation process; and quantitatively analyzing the fracture morphology data through a preset image processing model to generate a video frame for displaying a fracture evolution process.
9. A skid fracture structure simulation system is characterized by comprising a processing device and a simulation device; the processing equipment is used for acquiring physical simulation data and sending the physical simulation data to the simulation equipment; The simulation device is used for simulating each stratum in the target area based on the physical simulation data so as to establish a stratum simulation model; the processing apparatus is further configured to obtain a walk-slip fracture model based on the physical simulation data and the stratigraphic simulation model using the walk-slip fracture construction simulation method of any one of claims 1-8.
10. An electronic device includes a processor, and a memory communicatively coupled to the processor; The memory stores computer-executable instructions; The processor executes computer-executable instructions stored in the memory to implement the skid break configuration simulation method of any one of claims 1-8.
11. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are for implementing a slip break construction simulation method according to any of claims 1-8.
12. A computer program product comprising a computer program which, when executed by a processor, implements the skid break construction simulation method of any one of claims 1-8.

Description

Skid break structure simulation method, system, device, storage medium and program product Technical Field The present application relates to geological exploration technology, and more particularly, to a method, system and apparatus for simulating a sliding fracture structure, a storage medium and a program product. Background With the development of geological exploration technology, simulating a geological structure is generally helpful for exploring and developing resources such as oil gas, mineral products and the like, and it is important to deeply research the geological structure. The existing geologic structure simulation method usually adopts a finite difference method, a finite element method, a boundary element method, a lattice Boltzmann method or a discrete element method to carry out numerical simulation of geologic structures, adopts sandbox simulation, wax simulation, centrifugal simulation or fluid simulation to carry out physical simulation of the geologic structures, adopts a single method to carry out physical simulation or numerical simulation, and the obtained model is relatively single and cannot accurately describe complex geologic structures, in particular to the sliding structure in a fault system, so that the accuracy of geologic structure simulation is limited to a great extent. Disclosure of Invention The application provides a sliding fracture structure simulation method, a sliding fracture structure simulation system, sliding fracture structure simulation equipment, a storage medium and a program product, which are used for solving the problem that the conventional geologic structure simulation technology cannot accurately describe a complex geologic structure. In a first aspect, the present application provides a method for simulating a slip fracture configuration, comprising: Acquiring physical simulation data and numerical simulation data of a target area with a sliding fracture structure, wherein the physical simulation data are used for simulating related data required by a formation structure deformation process; The deformation characteristic data of each stratum of the target area are obtained, and the deformation characteristic data are obtained after the stratum structure deformation process of the target area is simulated based on the physical simulation data; Simulating a stratum fracture evolution process of the target area based on the numerical simulation data to obtain fracture morphology data of each stratum of the target area, wherein the fracture morphology data are used for indicating morphology changes caused by fracture of each stratum under a plurality of evolution stages; And acquiring a sliding fracture model related to the target area based on the deformation characteristic data and the fracture morphology data, wherein the sliding fracture model is used for describing a sliding fracture structure of the target area. In one possible implementation manner, the acquiring deformation characteristic data of each stratum of the target area sent by the simulation device includes: And applying a construction acting force for indicating relative movement of two sides of a fault to the stratum simulation model so as to simulate a construction deformation process of the target area, and performing slice analysis on the simulated stratum simulation model so as to obtain deformation characteristic data of each stratum, wherein the deformation characteristic data comprises profile deformation characteristics. In one possible implementation, the acquiring physical simulation data of the target area with the skid fracture configuration includes: Acquiring seismic data and logging data of the target area; determining geological feature data based on the seismic data; Determining a geological horizon and geological structure data of each reflecting layer based on the logging data, the geological feature data and reflecting layer features recorded in the seismic data; the physical simulation data is determined based on the geologic structure data. In one possible implementation, the acquiring the numerical simulation data of the target area with the skid fracture configuration includes: Acquiring characteristic parameters of spherical particles, and determining model parameters of a particle contact model and mechanical parameters between the spherical particles and boundaries, wherein the spherical particles are used for simulating rocks in a stratum with a sliding fracture structure in the target area; determining the simulation thickness associated with each stratum in any appointed evolution stage based on the geological structure data; numerical simulation data is determined based on the characteristic parameters, the model parameters, the mechanical parameters, and the simulated thickness. In one possible implementation manner, the simulating the formation fracture evolution process of the target area based on the numerical simulation data to obtain fracture mor