A method and device for determining the quality of dolomite reservoirs
A technology for reservoir quality and determination methods, applied in image analysis, image enhancement, instruments, etc., can solve the problems of simple considerations and inability to accurately determine the quality of dolomite reservoirs, and achieve the effect of improving accuracy
Active Publication Date: 2019-11-08
PETROCHINA CO LTD
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Problems solved by technology
With the exploration and development of carbonate rock oil and gas fields, the complexity of the actual geological conditions is becoming more and more prominent. The factors considered by traditional methods are too simple, and it is often impossible to accurately determine the reservoir quality of dolomite
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[0022] 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 making creative efforts shall fall within the scope of protection of this application.
[0023] An embodiment of the present application provides a method for determining the quality of a dolomite reservoir. figure 1 It is a flowchart of a method for determining the quality of dolomite reservoirs provided in the implementation mode of this application. Although the processes described below include multiple operations...
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The application provides a determination method and device for dolostone reservoir quality, wherein the method comprises: acquiring the core sample of the dolostone to be processed; determining the reservoir type the core sample belonging and determining the reservoir type evaluation parameter corresponding to the reservoir type; determining the physical property evaluation parameter of the core sample, the data of the reservoir physical property test comprises the porosity test data and / or permeability test data; determining the non-homogeneity evaluation parameter of the core sample; determining the economical-effective evaluation parameter corresponding to the core sample; determining the quality parameter corresponding to the core sample according to the reservoir type evaluation parameter, the physical property evaluation parameter, the non-homogeneity evaluation parameter and the economical-effective evaluation parameter, and determining the core sample quality according to the quality parameter. The determination method and device for dolostone reservoir quality provided hereunder can improve accuracy of dolostone reservoir quality determination.
Description
technical field [0001] This application relates to the technical field of oil and gas exploration and development, in particular to a method and device for determining the quality of dolomite reservoirs. Background technique [0002] In recent years, dolomite reservoirs have gradually become an important new field of oil and gas exploration. Dolomite reservoirs in domestic oilfields (Sichuan Basin, Tarim Basin and Ordos Basin) are usually buried deep and have complicated origins. There are various types of dolomite reservoirs formed under different geological backgrounds and different genesis, and the reservoir space usually has a complex structure of pores, caves and fractures, with strong heterogeneity. [0003] In oil and gas exploration, it is often necessary to evaluate the quality of dolomite reservoirs before drilling. At present, petrophysical test data (porosity, permeability, maximum displacement pressure and pore throat radius, etc.) are usually used to classify ...
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IPC IPC(8): G06T7/00G06T7/41G06T7/62
CPCG06T7/0004G06T7/40G06T2207/30108
Inventor 周波
Owner PETROCHINA CO LTD