Carbonate rock crack hole reservoir prediction method and device

A carbonate rock and reservoir prediction technology, applied in the field of exploration, can solve problems such as difficulty in use, inconsistent results, and indirect and clear results, and achieve the effect of improving the success rate and high prediction accuracy

Active Publication Date: 2015-02-25
PETROCHINA CO LTD
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Problems solved by technology

Therefore, the P-wave anisotropy test results are very expressive, resulting in inconsistent results. From the user's point of view, the P-wave anisotropy test results do not obtain the distribution of simple fracture-vuggy reservoirs, and the results are not straightforward. difficult to use

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  • Carbonate rock crack hole reservoir prediction method and device
  • Carbonate rock crack hole reservoir prediction method and device
  • Carbonate rock crack hole reservoir prediction method and device

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[0062] 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.

[0063] figure 1 A schematic diagram showing the carbonate fracture-cavity reservoir prediction method provided by the present application, such as figure 1 As shown, the method includes:

[0064] Step S101: preparing seismic data;

[0065] Step S102: perform seismic horizon interpretation on the seismic data;

[0066] Step S103: Gener...

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Abstract

The embodiment of the invention provides a carbonate rock crack hole reservoir prediction method and device. The method includes the steps that seismic data are prepared; seismic horizon interpretation is performed on the seismic data; the average speed of converted shear waves is generated by the seismic data; the gradient data body and the intercept data body of the converted shear waves are obtained according to the seismic data and the average speed of the converted shear waves, and a lithological character indicator factor data body is generated according to the gradient data body and the intercept data body of the converted shear waves; a simulated hole coefficient data body is generated according to the lithological character indicator factor data body; longitudinal waves and converted shear waves are matched, and the longitudinal span range of the time domain of the wave field of the converted shear waves is determined; according to the simulated hole coefficient data body and the longitudinal span range of the time domain of the wave field of the converted shear waves, carbonate rock weathering crust crack hole reservoirs can be predicted.

Description

technical field [0001] The present application relates to the field of exploration technology, in particular to a method and device for predicting carbonate rock reservoirs. Background technique [0002] There are oil fields and oil and gas reservoirs in the underground bottom layer, and the bottom layer that preserves oil and natural gas is called oil and gas reservoir. Oil and gas reservoirs are mostly bottom layers with certain porosity. Among them, the reservoirs containing a large number of fractures or mainly fractures are fracture-type reservoirs, such as mudstone fracture reservoirs, sandstone fracture reservoirs, carbonate rock fracture reservoirs, and volcanic rock fracture reservoirs. The oil and gas layers formed are fracture-type reservoirs. oil and gas reservoirs. [0003] The purpose of oil exploration is to comprehensively use geophysical exploration methods, earth gravity or magnetic exploration methods, logging exploration methods, geological exploration ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28G01V1/30
Inventor 刘军迎雍学善刘伟方高建虎
Owner PETROCHINA CO LTD
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