Processing method of polarity collection and recording in seismic exploration
A processing method and polarity technology, which is applied in the field of polarity processing of seismic exploration acquisition records, can solve problems such as high cost, low efficiency, and difficulty in meeting quality control
Active Publication Date: 2016-11-30
CHINA PETROLEUM & CHEM CORP +1
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[0003] The traditional method of judging the polarity "reversal" is to judge the polarity based on the operator's experience by monitoring the shot record displayed on the screen or the paper shot record, which has low efficiency, heavy workload, and high cost. It is difficult to meet the current quality control requirements for efficient collection of massive data
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[0024] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0025] figure 1 It is a flowchart of a method for processing the polarity of seismic exploration acquisition records according to an embodiment of the present invention. Such as figure 1 As shown, the present invention provides a method for processing the polarity of seismic exploration acquisition records, the processing method may include: S12, determine the amplitude maximum time for each data track according to the wave data collected by the geophone; S14, obtain the corresponding The sample point amplitude at the determined amplitude maximum time; S16, determine the polarity sign of the data track according to the obtained sample point amplitude; a polar...
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The invention provides a processing method of polarity collection and recording in seismic exploration. The processing method comprises the steps of: determining amplitude maximum value time of each data channel according to wave data collected by a detector; obtaining sample point amplitudes corresponding to the determined amplitude maximum value time; according to the obtained sample point amplitudes, determining the polarity symbols of data channels; and repeating the above steps to obtain the polarity symbol of each data channel of the plurality of data channels, and determining that the data channel in which the proportion of the polarity symbol is smaller than a preset value is a reversed polarity data channel. According to the above technical scheme, the polarity symbols of data channels are determined by the sample point amplitudes corresponding to the determined amplitude maximum value time, and the polarity of each data channel is determined according to the proportion of the polarity symbols in the plurality of data channels. By adopting the method, the polarity detection of the data channels is accurate and efficient.
Description
technical field [0001] The invention relates to the field of acquisition and processing of seismic data of geophysical exploration, in particular to a method for processing the polarity of seismic exploration acquisition records, which can be applied to the quality control and data processing of data acquisition in oil and gas seismic exploration and unconventional seismic exploration. Background technique [0002] Nowadays, the speed of seismic exploration and acquisition construction is getting faster and faster, and the amount of data is increasing. The number of channels received by seismic exploration and acquisition is usually a lot, some as many as tens of thousands, and sometimes there are several construction teams in a 3D work area at the same time Collect seismic exploration data together, and the number of channels received at the same time will be more. During construction, there will often be situations such as "reversal" of the receiving polarity of the geopho...
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Inventor 刘小民金红娣徐春梅梁硕博邬达理蒋波
Owner CHINA PETROLEUM & CHEM CORP