Data processing method and device in vertical seismic profiling (VSP) acquisition
A vertical seismic profile and data processing device technology, applied in seismic signal processing, electrical digital data processing, special data processing applications, etc., can solve problems such as error-prone, affect VSP acquisition efficiency, and error-prone, so as to improve acquisition efficiency and the effect on accuracy
Active Publication Date: 2018-01-05
BC P INC CHINA NAT PETROLEUM CORP +1
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In this way, in addition to the normal instrument recording time, a large part of the acquisition time of each shot is wasted on this kind of check, which seriously affects the VSP acquisition efficiency, and is prone to errors, especially for frequent data entry during continuous excitation. An error occurred
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[0054] 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 creative efforts shall fall within the scope of protection of this application.
[0055] In one embodiment of the present application, the acquisition system and the excitation source used in the acquisition of the vertical seismic section can be uniformly timed by the same positioning system. Specifically, the acquisition system and the excitation source can be equipped with a positioning device on the hardware. The p...
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The embodiment of the invention provides a data processing method and a device in vertical seismic profiling (VSP) acquisition. The same positioning system performs unified timing for an acquisition system and an excitation source used by vertical seismic profiling acquisition. The method comprises steps: the excitation time and the plane coordinates of the current excitation point acquired by thepositioning device at the excitation source are acquired; according to the plane coordinates and a preset observation system, the pile number and the spatial coordinates of the current excitation point are acquired; according to the excitation time and the recording time of each recording file in the acquisition system, the file number of the recording file corresponding to the excitation time isacquired; and the pile number and the spatial coordinates are written to the file header of the recording file corresponding to the file number. The embodiment of the invention can improve the VSP acquisition efficiency.
Description
technical field [0001] The present application relates to the field of vertical seismic profile (Vertical Seismic Profiling, VSP for short) data acquisition technology, and in particular to a data processing method and device in vertical seismic profile acquisition. Background technique [0002] VSP is a seismic observation method. It corresponds to the seismic section usually observed on the ground. The seismic profile of ground observation is to excite seismic waves at some points near the surface, and at the same time observe at some receiver points arranged along the surface survey line; VSP also excites seismic waves at some points near the surface, but it is different along the drilling Observations are made at some receiver points arranged in depth, that is, the seismic wave field is observed in the well. [0003] A crucial point in VSP acquisition is to ensure the one-to-one correspondence between shot points and recorded files. At present, usually, during the col...
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IPC IPC(8): G01V1/30G06F17/30
Inventor 刘聪伟陈朔蔡志东陈沅忠王艳华
Owner BC P INC CHINA NAT PETROLEUM CORP