Repeated broken edge data filtering method and device
A technique of repeated breaking and filtering, applied in the field of seismic exploration, can solve problems such as errors, multiple interpretations of seismic data, repetitive work, etc., and achieve the effect of improving processing efficiency and finely determining the characteristics of geological structures
Active Publication Date: 2021-08-17
CHINA OILFIELD SERVICES
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Problems solved by technology
In the initial stage of exploration, due to the influence of existing seismic data imaging effects and seismic interpretation personnel's understanding of the study area's geology, the interpretation of seismic data is ambiguous.
Different interpreters may have repeated work on the interpretation of the same block structure, that is, the problem of duplication of broken edges
Repetition of broken ridges will cause errors when combining broken ridges into sections during geological modeling, which will cause great inconvenience to geological modeling and structural description. Therefore, it is necessary to filter out repeated broken ridge data
Method used
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[0035] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0036] figure 1 A flow chart showing a method for filtering out repeated edge-breaking data according to an embodiment of the present invention, as shown in figure 1 As shown, the method includes the following steps:
[0037] Step S101, according to the seismic data, determine the coordinate axis of the direction of the main survey line and the coordinate axis of the direction of the contact survey line.
[0038] Seismic data are various data...
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The embodiment of the invention discloses a repeated broken edge data filtering method and device, and the method comprises the steps: determining a main measuring line direction coordinate axis and a connection measuring line direction coordinate axis according to seismic data; wherein the coordinate axis in the main measuring line direction is perpendicular to the coordinate axis in the cross measuring line direction; extracting a plurality of main measuring line numbers and a plurality of contact measuring line numbers from the seismic data; for any one of the plurality of main measuring line numbers and the plurality of contact measuring line numbers, obtaining any two broken edges on the line number, and calculating the spatial distance between the two broken edges; judging whether the spatial distance meets a repetition condition or not; and if yes, determining the two broken edges as repeated broken edges so as to delete any one of the broken edges. By calculating the spatial distance between any two broken edges on the line number of the main survey line and the line number of the connection survey line, the repeated broken edges can be accurately determined and filtered according to the spatial distance, the processing efficiency is improved, and the geological structure features can be more finely determined.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of seismic exploration, and in particular to a method and device for filtering repeated broken edge data. Background technique [0002] In the process of seismic data interpretation, interpreters combined with the structural geological background of the study area, along the Inline (main measuring line) or Crossline (connecting measuring line) based on the breakpoints and section characteristics on the seismic section, comprehensively interpreted the reaction faults The line segment of the feature. Multiple broken edges of the same fault are combined in space to form a surface to form a section, so the broken edge is the basic unit of a section. [0003] Interpretation of faulted ridges is an important link in structural interpretation, and its results directly affect the subsequent geological modeling, reservoir description and development of oil and gas reservoirs. In the initial st...
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IPC IPC(8): G01V1/36
CPCG01V1/36
Inventor 刘旭明张建峰王子秋唐进李江吴尧李艳青张鹏陈磅李欣刘兴达邓勇
Owner CHINA OILFIELD SERVICES