A kind of karst carbonate reservoir shear wave prediction method and device
A carbonate rock reservoir and shear wave prediction technology, which is applied in the seismology for logging records, etc., can solve the problems of large secondary changes, complex pore structure of reservoirs, and many types of storage spaces.
Active Publication Date: 2019-11-08
PETROCHINA CO LTD
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[0005] However, compared with sandstone and mudstone reservoirs, the pore structure of karst carbonate reservoirs is more complex, with more types of storage spaces and greater secondary changes, resulting in carbonate reservoirs having a greater characteristics such as diversity, complexity, and heterogeneity
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[0084] 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.
[0085] refer to figure 1 As shown, the shear wave prediction method for karst carbonate reservoirs in the embodiment of the present application may include the following steps:
[0086] S101. Obtain well logging data of a destination formation in an area to be predicted.
[0087] In the embodiment of the present application, the logging...
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The embodiment of the invention provides a karst carbonate reservoir shear wave forecast method and device. The method comprises the steps that the logging data of the regional destination layer to beforecasted are acquired; the destination layer reservoir space is depicted according to the logging data and different pore structures so as to construct the equivalent dielectric of the destinationlayer; the elasticity modulus of the rock matrix in the equivalent dielectric and the elasticity modulus of the dry rock in the equivalent dielectric are determined; the elasticity modulus of the equivalent dielectric is determined according to the elasticity modulus of the rock matrix and the elasticity modulus of the dry rock; and the shear wave curve of the destination layer is forecasted according to the logging data and the elasticity modulus of the equivalent dielectric. Shear wave forecasting of the karst carbonate reservoir can be realized.
Description
technical field [0001] The present application relates to the technical field of petrophysical modeling, in particular to a shear wave prediction method and device for karst carbonate reservoirs. Background technique [0002] The reservoir characteristics of carbonate reservoirs are mainly karst reservoirs reformed by atmospheric fresh water leaching. This kind of reservoirs is composed of irregular karst fractures, pores and caves, and the physical properties of the reservoirs are strongly heterogeneous. sexual characteristics. Studying the relationship between seismic wave field elastic parameters and reservoir physical properties is an important means to characterize karst carbonate reservoirs. [0003] Seismic rock physics technology is to closely link seismic exploration with the study of the physical properties of rock reservoirs, and can quantitatively describe the relationship between rocks and oil and gas. The research results of seismic rock physics mainly lay th...
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IPC IPC(8): G01V1/40
CPCG01V1/40
Inventor 常少英
Owner PETROCHINA CO LTD