Method and device for constructing cross subset

A cross subset and construction method technology, applied in seismic signal processing and other directions, can solve the problems of inability to process seismic wave data, slow data sorting, and large data volume, and achieve fast and effective construction and improve timeliness.

Active Publication Date: 2015-09-02
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the seismic wave data cannot be processed in time in the prior art, and the timeliness of data processing is very low
In addition, due to the need to achieve full coverage of the observation area, the amount of data involved in the construction is large, and the data sorting is slow

Method used

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  • Method and device for constructing cross subset
  • Method and device for constructing cross subset
  • Method and device for constructing cross subset

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the scope of protection of this application.

[0034] figure 1 It is a flowchart of a method for constructing a cross subset provided in the embodiment of this application. Although the processes described below include multiple operations occurring in a particular order, it should be clearly understood that these processes may include more or fewer operations, which may be pe...

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Abstract

The invention provides a method and a device for constructing a cross subset. The method comprises the steps of establishing single beam line observation system, wherein the single beam line observation system at least comprises a first preset number of receiving lines and a second preset number of shot points, and the receiving lines are provided with a third preset number of receiving points; acquiring seismic wave data according to the single beam line observation system; calculating the vector non vertical offset from each shot point to the receiving line; carrying out data rearrangement on the seismic wave data according to the vector non vertical offset and the position of each receiving point so as to acquire rearranged seismic wave data; and extracting a cross subset in the rearranged seismic wave data. The method and the device provided by the embodiment of the invention for constructing the cross subset can construct the cross subset quickly and effectively.

Description

technical field [0001] The present application relates to the technical field of seismic data processing, in particular to a method and device for constructing a cross subset. Background technique [0002] As the main geological targets of oil and gas exploration shift to subtle oil and gas reservoirs and lithologic oil and gas reservoirs, seismic exploration work has also shifted from conventional 3D seismic to high-precision 3D seismic. In order to obtain high-precision 3D seismic data, linear interference suppression processing in the 3D spatial domain is often required. Although the density of seismic acquisition data is getting higher and higher, the receiving line distance of a single 3D shot data is still too large relative to the wavelength of linear noise, resulting in discontinuity of the wave field in the CrossLine direction, so it is not possible to directly suppress linear interference in the 3D spatial domain . At this stage, the cross subset technique is the...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28
Inventor 杨全斌刘云田宁宏晓刘凤智张立军尹吴海
Owner BC P INC CHINA NAT PETROLEUM CORP
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