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Method and device for merging and processing seismic data of land and water geophones

A technology of seismic data and land geophones, which is applied in the fields of oil exploration, mining and development, and can solve problems such as time-consuming calculations

Active Publication Date: 2019-03-15
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

This method requires a large number of autocorrelation calculations and maximum variance norm calculations, so the calculations are very time-consuming

Method used

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  • Method and device for merging and processing seismic data of land and water geophones
  • Method and device for merging and processing seismic data of land and water geophones
  • Method and device for merging and processing seismic data of land and water geophones

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Embodiment Construction

[0091] Embodiments of the present application provide a method and device for merging and processing seismic data of hydrophones.

[0092] 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.

[0093] An embodiment of the present application provides a method for merging and processing seismic data of hydrophones. The method provides hydrophone seismic data and geophone seismic data for an area of ...

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Abstract

The embodiment of the invention discloses a water and land geophone seismic data combined processing method and a combined processing device. The method comprises steps: land geophone seismic data aresubjected to phase processing; the water geophone seismic data and the land geophone seismic data after phase processing are subjected to amplitude processing; the water geophone seismic data and theland geophone seismic data after amplitude processing are subjected to Fourier transform respectively; according to the water geophone seismic data and the land geophone seismic data after amplitudeprocessing, a calibration factor is calculated, and according to the water geophone seismic data and the land geophone seismic data after Fourier transform, a sea water depth and a seabed reflection coefficient are calculated; based on the sea water depth, a mirror combination factor is determined; and mirror combination processing is carried out on the water geophone seismic data and the land geophone seismic data in a target area, and water and land geophone combined data are obtained. Through the embodiment of the invention, the water and land geophone seismic data combined processing accuracy can be improved.

Description

technical field [0001] The present application relates to the technical field of petroleum exploration, exploitation and development, in particular to a method and device for merging and processing seismic data of hydrophones. Background technique [0002] With the development of seismic exploration technology, offshore oil and gas exploration is becoming more and more difficult and deeper, and the requirements for signal-to-noise ratio and resolution of seismic data are also getting higher and higher. OBC (Ocean Bottom Cable) is a combined offshore and land seismic data acquisition technology, which fixes the geophone on the seabed to obtain high-resolution 3D seismic data. In OBC data collection, at least three ships: a source ship, which merely tows the air gun source arrangement, for seismic wave excitation; a receiver ship, which is stationary, connected to a submarine cable, to receive seismic waves; a ship Or several ships, laying submarine cables and recovering subm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/38
Inventor 高少武赵波钱忠平黄少卿祝树云刘增强
Owner BC P INC CHINA NAT PETROLEUM CORP
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