Method and device for determining rock mass conductivity parameters
A technology for determining the transport capacity and parameters, applied in the field of geological exploration, can solve the problems of other types of rock mass transport capacity without quantitative characterization methods, and achieve the effect of reducing risks and improving the distribution law.
Active Publication Date: 2019-10-11
PETROCHINA CO LTD
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[0004] In the above-mentioned existing technologies, qualitative or semi-quantitative methods are mainly used, such as directly characterizing the conductivity of the rock mass, that is, the connectivity, through connectivity or disconnection. There is no quantitative characterization method for the conductivity of other types of rock mass
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[0027] 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.
[0028] Considering that qualitative or semi-quantitative methods are generally used in the prior art to determine the transport capacity parameters of the rock mass to be tested, this application proposes to quantitatively determine the transport capacity parameters of the rock mass to be tested by using the dip angle of the formation and ...
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The invention provides a method and device for determining a transporting capability parameter of rock mass. The method comprises the steps of obtaining an included angle between to-be-tested rock mass and a horizontal plane and taking the included angle as a stratigraphic dip; obtaining the permeability of the to-be-tested rock mass, wherein the permeability comprises horizontal permeability and vertical permeability; and calculating the transporting capability parameter of the to-be-tested rock mass according to the horizontal permeability, the vertical permeability and the stratigraphic dip. According to the method and the device, the transporting capability parameter of the to-be-tested rock mass is calculated through the angle between the to-be-tested rock mass and the horizontal plane and the permeability of the to-be-tested rock mass, and the target of quantitative evaluation of the transporting capability of the to-be-tested rock mass is achieved, so that the distribution law of an oil-gas reservoir can be better predicted according to the transporting capability parameter and the geological prospecting risk is reduced.
Description
technical field [0001] The invention relates to the technical field of geological exploration, in particular to a method and a device for determining parameters of rock mass conductivity. Background technique [0002] The transport system can refer to all the pathway networks and related surrounding rocks experienced by oil and gas in the process of migrating from source rocks to traps, and can include connected sand bodies, faults, unconformities and their combinations. The description of the rock mass transport system and the quantitative characterization of the transport capacity are of great significance in the quantitative study of oil and gas migration and oil and gas accumulation. Through the quantitative characterization of rock mass transport capacity, the application level of oil and gas system analysis and simulation can be effectively improved. [0003] At present, the research on the transport system has made remarkable progress. From the analysis of sedimenta...
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IPC IPC(8): G01N13/04G01V9/00
Inventor 郭秋麟陈宁生武娜梁坤
Owner PETROCHINA CO LTD