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Common source receiving system of seismic prospecting instrument and VSP logging instrument

A technology for seismic exploration and well logging instruments, which is applied in the direction of instruments, signal transmission systems, and seismology for well logging records, and can solve the problem of correct judgment of unfavorable operation results and correct judgment of target horizons, failure to ensure excitation and acquisition Data consistency, unfavorable seismic data acquisition and other issues, to avoid ambiguity, improve exploration accuracy, and improve work efficiency

Active Publication Date: 2014-05-07
CHINA PETROCHEMICAL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the construction method of repeated blasting and repeated laying and receiving in conventional seismic exploration and VSP logging, which is time-consuming, labor-intensive, low in efficiency and high in cost, and cannot ensure that the two sets of instruments are consistent with the excitation and acquisition data. It is not conducive to the correct judgment of the operation results and the correct judgment of the target layer, and the existing synchronization accuracy cannot be guaranteed, which is not conducive to high-quality seismic data acquisition. A flexible, convenient and accurate Synchronous seismic exploration tool and VSP logging tool common source receiving system

Method used

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  • Common source receiving system of seismic prospecting instrument and VSP logging instrument
  • Common source receiving system of seismic prospecting instrument and VSP logging instrument
  • Common source receiving system of seismic prospecting instrument and VSP logging instrument

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] like figure 1 As shown, a seismic exploration instrument and VSP logging instrument common-source receiving system is suitable for any seismic exploration instrument and any VSP logging instrument, including seismic exploration instruments (in this example, the model is 428XL produced in France) , modulator, encoder (in this example, the model is ZN601 made in China), the radio transceiver control module set at the location of the seismic exploration instrument 1, the radio station 1, the radio station set at the location of the shot point excitation device 2, the decoder (in this example The medium model is ZN601 made in China), the radio transceiver control module 2, the shot point excitation device (the model in this example is ZN601 made in China), the ground geophone installed at each shot point (the model in this example is SM24 made in the...

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Abstract

The invention discloses a common source receiving system of a seismic prospecting instrument and a VSP logging instrument. The system comprises the seismic prospecting instrument, a modulator, an encoder, a first broadcasting station arranged at the position where the seismic prospecting instrument is located, a second first broadcasting station arranged at the position where a shotpoint excitation device is located, a decoder, the shotpoint excitation device, a surface geophone, a VSP borehole geophone, a third broadcasting station and the VSP logging instrument, wherein the surface geophone and the VSP borehole geophone are arranged at receiving points, and the third broadcasting station is arranged at the position where the VSP logging instrument is located. The precise and synchronous relation among the seismic prospecting instrument, the VSP logging instrument and the excitation point is ensured through the modulator, the encoder, the decoder, the demodulator and radio stations connected between the modulator, the encoder, the decoder and the demodulator, two-dimensional and three-dimensional seismic exploration and VSP logging working are synchronously carried out, the shotpoint focus is shared, repeated excitation of the same excitation points in the same working area by the seismic exploration and the VSP logging is avoided, and the excitation workloads are saved by two times.

Description

technical field [0001] The invention relates to two exploration methods of seismic exploration and VSP well logging, same-source sharing and system synchronization. Specifically: the seismic waves excited by the seismic exploration that will be carried out separately in oil exploration, the reflected waves from the formation received by the 400 series seismic instruments, and the direct waves received by the VSP logging instrument, use the same excitation source, and the two sets of instruments simultaneously complete the seismic Reflected wave and logging direct wave reception work, complete the common source synchronous reception of seismic exploration instrument and VSP logging instrument. Background technique [0002] Petroleum exploration is accomplished by multi-disciplinary, wide-ranging technical areas and independent majors. Seismic exploration and VSP logging are different fields of geophysical exploration. The purpose is to find out the underground geological st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/42G08C17/02
Inventor 唐成鸽尤桃如沈月芳唐科伟朱军陈迎春
Owner CHINA PETROCHEMICAL CORP
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