Manufacturing method and device for synthesizing earthquake record

A technology for synthesizing seismic records and data, applied in the field of geophysical exploration, it can solve the problems of low resolution of well logging data, inability to accurately reflect formation reflection, inability to effectively perform seismic horizon calibration and reservoir interpretation, etc. The effect of resolution

Active Publication Date: 2015-12-23
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

However, the seismic wavelets used are generally given wavelets or wavelets extracted from seismic traces beside wells. These two methods use constant wavelets, and there is a certain deviation in the description of real formation reflections.
At the same time, the reflection coefficient used is obtained directly from the well logging data. Generally, the resolution of the ...

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  • Manufacturing method and device for synthesizing earthquake record
  • Manufacturing method and device for synthesizing earthquake record
  • Manufacturing method and device for synthesizing earthquake record

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Embodiment Construction

[0070] 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.

[0071] The specific implementation of the embodiment of the present application will be described in detail below with several specific examples.

[0072] In practical application, the vertical seismic method is a geophysical technique between seismic and logging methods. This method can set the seismic source on the surface, set the geo...

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Abstract

The invention discloses a manufacturing method and a device for synthesizing earthquake record. The manufacture method comprises steps of obtaining earthquake data comprising time-depth relation data and corridor stack profile data, utilizing the time-depth relation data to perform correction processing on acoustic logging data, obtaining corrected acoustic logging data and depth correction data, utilizing depth-correction data to perform correction processing on density logging data to obtain corrected density logging data, obtaining a reflection coefficient sequence according to the calculation of the corrected acoustic logging data and corrected density logging data, utilizing time-depth relation data to perform time-depth conversion on the reflection coefficient sequence to obtain time-domain reflection coefficient sequence, determining a dominant frequency curve according to the corridor stack profile data, generating a ricker wavelet set, and performing convolution calculation on the ricker wavelet set and the time-domain reflection coefficient sequence to obtain synthesized earthquake record. The invention can obtain the synthetic earthquake record according with the reality.

Description

technical field [0001] The invention relates to the technical field of geophysical exploration, in particular to a method and device for making synthetic seismic records. Background technique [0002] Synthetic seismic records are an important bridge between seismic data and well logging data. Synthetic seismic records play an important role in structural interpretation, reservoir analysis, wave impedance inversion and reservoir description in the field of geophysical exploration technology. The production accuracy of synthetic seismic records will affect the accuracy of seismic geological horizon calibration. [0003] In the prior art, the convolution of seismic wavelets and reflection coefficients is generally used to produce synthetic seismic records. However, the seismic wavelets used are generally given wavelets or wavelets extracted from side-hole seismic traces. These two methods use constant wavelets, and there is a certain deviation in the description of the real ...

Claims

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Application Information

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IPC IPC(8): G01V1/28
Inventor 蔡志东张庆红鲍磊英王艳华赵予凤
Owner BC P INC CHINA NAT PETROLEUM CORP
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