CN-117761770-B - Method, device, equipment and medium for estimating horizontal slip distance of tension-torsion construction area

CN117761770BCN 117761770 BCN117761770 BCN 117761770BCN-117761770-B

Abstract

The application discloses a method, a device, equipment and a medium for estimating horizontal slip distance of a tension-torsion construction area, which relate to the technical field of petroleum geological exploration and comprise the steps of performing seismic interpretation on horizon information and fracture information contained according to phase axis data of the tension-torsion construction area to be estimated to obtain fault information and target horizon information of a target layer, determining a local small-fracture-distance fracture development area of a vertical structure trend from the tension-torsion construction area to be estimated based on the fault information and the target horizon information, screening a target horizontal slice group from the local small-fracture-distance fracture development area according to similarity information, amplitude intensity information and frequency information of wave groups, analyzing the target horizontal slice group overlapped with fracture tracks corresponding to the target layer to determine a plurality of fracture positions for horizontal slip distance estimation, performing measurement and calculation on data pairs of horizontal slip distances and vertical fracture distances on all the fracture positions, performing fitting analysis on the measured data pairs, and estimating the horizontal slip distances of the tension-torsion construction area to be estimated.

Inventors

CUI LIJIE
LIU NI
DONG DANDAN
HUANG YAWEN
GAO ZENGWEI
Leng Yanmei
CHEN YONGRUI

Assignees

中国石油大学(北京)

Dates

Publication Date: 20260508
Application Date: 20240202

Claims (10)

1. A method for estimating horizontal slip distance of a tension torsion construction area is characterized by comprising the following steps: Performing seismic interpretation on the horizon information and the fracture information contained in the event data according to the tension-torsion construction area to be estimated so as to obtain different fault information and target horizon information of a target layer; determining a local small-break-distance fracture development area of the vertical structure trend from the tension-torsion construction area to be estimated based on the fault information and the target position information; screening a target horizontal slice group from the local small-break-distance fracture development area according to the similarity information, amplitude intensity information and frequency information of the wave group; Analyzing the target horizontal slice group overlapped with the fracture track corresponding to the target layer to determine a plurality of fracture positions for horizontal slip distance estimation; and respectively measuring and calculating the horizontal slip distance and the vertical slip distance of the fracture positions, and carrying out fitting analysis on the measured and calculated data pairs to estimate the horizontal slip distance of the tension-torsion construction area to be estimated.
2. The method for estimating a horizontal slip distance of a construction area Zhang Niu according to claim 1, wherein the performing seismic interpretation on the horizon information and the fracture information included in the event data of the construction area to be estimated to obtain different fault information and target horizon information of the target layer comprises: And performing closed seismic interpretation on the same-phase axis data of the tension-torsion construction area to be estimated through preset seismic interpretation software so as to obtain different fault information and target layer position information of a target layer.
3. The method of claim 1, wherein determining a local small-break development zone of a vertical structure strike from the to-be-estimated tension-torsion structure zone based on the fault information and the target horizon information comprises: And judging the fault distribution condition of the tension-torsion construction area to be estimated based on the fault information and the target position information, so as to determine a local small-break-distance fracture development area of the vertical construction trend based on the fault distribution condition.
4. The Zhang Niu construction area horizontal slip estimation method of claim 1, wherein after determining the plurality of fracture locations for horizontal slip estimation, further comprising: And carrying out region selection on a section target layer in the sliding fault or a fault disc in a plane target layer based on a fracture track corresponding to the target layer in the fault information of the target horizontal slice group, then carrying out horizontal sliding recovery on the selected region, and observing the corresponding conditions of the seismic wave groups at two sides of the fault.
5. The method for estimating a horizontal slip distance in a Zhang Niu th construction area according to claim 4, wherein after performing horizontal slip recovery on the checked area and observing the corresponding condition of the seismic wave groups on both sides of the fault, further comprising: Judging whether the corresponding relation of two fault plates is natural or not according to the corresponding situation of the seismic wave groups at two sides of the fault, or setting any line planar display navigation path of the section destination layer based on the corresponding relation after fault recovery along the planar destination layer, and judging whether the corresponding relation of the seismic wave groups at two sides of the fault on the section destination layer is natural or not; If yes, indicating that the corresponding fracture position passes verification, and taking the fracture position passing verification as a target fracture position for data sampling and analysis; If not, indicating that the corresponding fracture position fails to pass the verification, and discarding the fracture position which fails to pass the verification.
6. The method for estimating a horizontal slip distance in a Zhang Niu th construction area according to the claim 5, wherein in the process of measuring and calculating the data pairs of the horizontal slip distance and the vertical slip distance for all the fracture positions, further comprising: And respectively marking points of all the target fracture positions in the two fault discs on the section target layer or the plane target layer, and reading the time difference between the two points as the time vertical fracture distance.
7. A method of estimating a horizontal slip of a construction area Zhang Niu according to any one of claims 1 to 6, wherein the fitting of the pair of measured data to estimate the horizontal slip of the construction area to be estimated comprises: setting a credibility reference parameter value, and acquiring a target parameter value obtained by fitting and analyzing the measured current data pair; and comparing the magnitude relation between the target parameter value and the credibility reference parameter value, and selecting whether to execute the step of estimating the horizontal slip distance of the tension-torsion construction area to be estimated based on the current data pair based on the magnitude relation.
8. A tension torsion construction area horizontal slip distance estimating device, comprising: The information interpretation module is used for performing seismic interpretation on the horizon information and the fracture information contained in the phase axis data according to the tension-torsion construction area to be estimated so as to obtain different fault information and target horizon information of a target layer; The region determining module is used for determining a local small-break-distance fracture development region of the vertical structure trend from the tension-torsion construction region to be estimated based on the fault information and the target layer position information of the target layer; the slice group screening module is used for screening a target horizontal slice group from the local small-break-distance fracture development area according to the similarity information, the amplitude intensity information and the frequency information of the wave groups; The track overlapping module is used for analyzing the target horizontal slice group overlapped with the fracture track corresponding to the target layer so as to determine a plurality of fracture positions for estimating the horizontal sliding distance; The estimating module is used for respectively measuring and calculating the horizontal slip distance and the vertical slip distance of all the fracture positions, and carrying out fitting analysis on the measured and calculated data pairs so as to estimate the horizontal slip distance of the tension-torsion construction area to be estimated.
9. An electronic device, comprising: A memory for storing a computer program; a processor for executing the computer program to implement the steps of the Zhang Niu construction area horizontal slip estimation method as claimed in any one of claims 1 to 7.
10. A computer readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements the steps of the Zhang Niu construction area horizontal slip estimation method as claimed in any one of claims 1 to 7.

Description

Method, device, equipment and medium for estimating horizontal slip distance of tension-torsion construction area Technical Field The invention relates to the technical field of petroleum geological exploration, in particular to a method, a device, equipment and a medium for estimating horizontal slip distance of a tension-torsion construction area. Background The fine interpretation of Zhang Niu formation fractures using seismic data plays a critical role in hydrocarbon exploration and production. Horizontal slip measurement is always a challenging research topic, and is still one of research hotspots in the field of seismic data interpretation. And the method for measuring and calculating the horizontal slip distance is updated continuously. In recent years, regarding the aspect of calculating the horizontal slip distance of an underground slip fault, the method mainly comprises the steps of comparing, analyzing and measuring two-disc markers of the fault, constructing a physical simulation method and estimating the difference of the stretching amounts at two sides of the fault. In addition, the phenomenon that the inclined stratum in the basin is broken by the sliding fault is relatively more. Therefore, for most skid breaks, the (inclined formation) event fault method can be considered. In general, the measurement of horizontal slip distance of a slip fault is relatively realistic and commonly used method by comparing stratum or sediments of two discs at the fault plane. However, during practical use it was found that the Zhang Niu building block was relatively large in vertical break distance due to the break, which resulted in a break horizontal slip distance that was difficult to measure, thus affecting knowledge of the break horizontal slip strength. Leading to freshly published horizontal slip data and related analysis, a profound understanding of Zhang Niu's structure was restricted. In summary, how to realize the horizontal slip distance estimation of the Zhang Niu structural region with a larger vertical break fault, and make up for the defect that the former cannot or is difficult to perform the fracture horizontal slip distance estimation in the Zhang Niu structural region is a technical problem to be solved in the field. Disclosure of Invention Accordingly, the present invention is directed to a method, apparatus, device and medium for estimating horizontal slip distance of a torsion structure region, which can realize the estimation of horizontal slip distance of a Zhang Niu structure region with a larger vertical break distance fault, and make up for the defect that the former cannot or is difficult to estimate the breaking horizontal slip distance in Zhang Niu structure region. The specific scheme is as follows: In a first aspect, the present application discloses a method for estimating a horizontal slip distance of a tension-torsion construction area, comprising: Performing seismic interpretation on the horizon information and the fracture information contained in the event data according to the tension-torsion construction area to be estimated so as to obtain different fault information and target horizon information of a target layer; determining a local small-break-distance fracture development area of the vertical structure trend from the tension-torsion construction area to be estimated based on the fault information and the target layer position information of the target layer; screening a target horizontal slice group from the local small-break-distance fracture development area according to the similarity information, amplitude intensity information and frequency information of the wave group; Analyzing the target horizontal slice group overlapped with the fracture track corresponding to the target layer to determine a plurality of fracture positions for horizontal slip distance estimation; and respectively measuring and calculating the horizontal slip distance and the vertical slip distance of the fracture positions, and carrying out fitting analysis on the measured and calculated data pairs to estimate the horizontal slip distance of the tension-torsion construction area to be estimated. Optionally, the performing seismic interpretation on the horizon information and the fracture information contained in the event data according to the tension-torsion construction area to be estimated to obtain different fault information and target horizon information of the target layer includes: And performing closed seismic interpretation on the same-phase axis data of the tension-torsion construction area to be estimated through preset seismic interpretation software so as to obtain different fault information and target layer position information of a target layer. Optionally, the determining, based on the fault information and the target horizon information of the target layer, a local small-break-distance fracture development area of the vertical structure trend from the to-be-estimated