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Reservoir prediction method and device based on synthetic seismogram

A technology for synthetic seismic records and reservoir prediction, applied in seismology, measuring devices, seismology, etc. for well logging records, can solve problems such as inaccurate reservoir prediction, improve inversion accuracy and reduce multiple solutions performance, and the effect of improving accuracy

Active Publication Date: 2018-12-21
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a reservoir prediction method based on synthetic seismic records, to solve the problem of inaccurate reservoir prediction due to the distortion of the density, sound wave and other curves in the detection depth caused by mudstone collapse in the current reservoir prediction; The invention also provides a reservoir prediction device based on synthetic seismic records

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  • Reservoir prediction method and device based on synthetic seismogram
  • Reservoir prediction method and device based on synthetic seismogram
  • Reservoir prediction method and device based on synthetic seismogram

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Embodiment Construction

[0040] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0041] The present invention first carries out statistical analysis to the logging data of all wells in the research area, obtains the empirical formula of the density-velocity relationship in the research area; then according to the caliper logging curve, corrects the density logging curve at the expanding diameter; The final density logging data is brought into the empirical formula of the density-velocity relationship to convert the acoustic logging curve at the diameter expansion; finally, the seismic synthetic record is made according to the corrected density logging curve and acoustic logging curve. The implementation process of this method is as follows figure 1 As shown, the specific implementation steps are as follows:

[0042] 1. Obtain well logging data in the research area, make statistics on the whole well logging curves in the...

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Abstract

The invention relates to a reservoir prediction method and device based on a synthetic seismogram, and belongs to the technical field of petroleum exploration development. A density-speed relationshipempirical formula suitable for a research area is searched to carry out the environment correction of a mudstone collapse section on well logging data in the research area to obtain a corrected density well logging curve and acoustic logging curve, according to the corrected density well logging curve, a synthetic seismogram record is manufactured to obtain a synthetic record which is more matched with a well byway, so that important basic data is provided for lowering multiplicity and improving inversion accuracy for subsequent model inversion, and therefore, reservoir predication accuracy is further improved.

Description

technical field [0001] The invention relates to a reservoir prediction method and device based on synthetic seismic records, belonging to the technical field of petroleum exploration and development. Background technique [0002] With the continuous deepening of petroleum exploration and development, it is becoming more and more difficult to find structural trap oil and gas reservoirs, and the exploration of subtle oil and gas reservoirs is becoming more and more important. As a core technology, seismic inversion technology plays an important role in the exploration of subtle oil and gas reservoirs. The purpose of seismic inversion is to use seismic reflection data to invert the distribution of the wave impedance body or velocity of the underground formation, and obtain relevant parameters of the reservoir, so as to predict the reservoir and describe the reservoir, providing a powerful reference for oil and gas exploration in accordance with. [0003] The model-based inver...

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Application Information

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IPC IPC(8): G01V1/50
CPCG01V1/50G01V2210/624
Inventor 张晓亮贾艳霞朱煜华范凤英王树芳马玉杨星李平和
Owner CHINA PETROLEUM & CHEM CORP
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