Seismic reservoir prediction method by cross analysis based on target analysis

A technology of intersection analysis and reservoir prediction, applied in seismology and seismic signal processing for well logging records, can solve problems such as blind operation, increased analysis workload, and no intuitive corresponding relationship between intersection parameter mapping results , to achieve the effect of simple and intuitive operation, accurate range, fast precision

Active Publication Date: 2012-10-31
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0009] The existing intersection analysis reservoir prediction technology is more effective for simple reservoirs with obvious characteristics, that is, when the reservoir characteristics on the intersection map can be reflected by independent regional response characteristics, and the response characteristic parameter range can be delineated on the intersection map , can delineate the distribution range of characteristic regions on the corresponding seismic attribute data; but for complex reservoirs with no obvious features on the intersection map,

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  • Seismic reservoir prediction method by cross analysis based on target analysis
  • Seismic reservoir prediction method by cross analysis based on target analysis
  • Seismic reservoir prediction method by cross analysis based on target analysis

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Embodiment Construction

[0026] Embodiments of the method for predicting seismic reservoirs based on intersection analysis based on target analysis according to the present invention will be described in detail below with reference to the accompanying drawings.

[0027] figure 1 It is a flow chart showing the method of seismic reservoir prediction based on the intersection analysis of target analysis according to the present invention.

[0028] First, at step 101, data for seismic reservoir prediction is prepared. Various methods can be used for field exploration and collection to obtain the original collected data. Then, post-stack seismic data are obtained through seismic data processing. In addition, the original logging data can be obtained according to various drilling and logging methods, and then the logging data can be processed and interpreted to obtain the logging data for geophysical interpretation. In addition, methods such as seismic attribute extraction and seismic inversion calculati...

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Abstract

The invention provides a seismic reservoir prediction method by cross analysis based on target analysis. The method comprises the following steps of: carrying out attribute calculation and back calculation on original seismic data so as to obtain seism preparation data for seism reservoir prediction and preparation data for well measurement; carrying out the cross analysis on well measuring data, thus determining whether a reservoir section on a cross plot of the well measuring data has obvious characteristics; and if so, defining a rational seismic reservoir prediction result according to the scope of parameters obtained from the cross analysis on the well measuring data and the existing data.

Description

technical field [0001] The invention relates to the technical field of geophysical prospecting seismic data interpretation, more specifically, relates to a seismic reservoir prediction method based on intersection analysis based on target analysis, and the seismic reservoir prediction method can be used for reservoir prediction of seismic data interpretation technology. Background technique [0002] In geophysical prospecting technology, after acquiring seismic data through conventional methods, it is necessary to interpret the seismic data, generally requiring reservoir prediction and interpretation process. In the reservoir prediction and interpretation process, it is necessary to analyze the logging data, perform attribute extraction, seismic inversion and other related calculations on the seismic data, and then use various methods (such as intersection analysis, multi-attribute fusion, principal component analysis, etc.) Perform qualitative and quantitative analysis on t...

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Application Information

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IPC IPC(8): G01V1/30G01V1/40
Inventor 洪余刚何光明陶正喜邹文张洞君陈小二周晶晶黄东山
Owner BC P INC CHINA NAT PETROLEUM CORP
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