Quantitative experiment method for shale physical property response under influence of multi-factor coupling
A technology with physical properties and experimental methods, which can be used in material inspection products, complex mathematical operations, soil material testing, etc., and can solve problems such as shortening production molding cycle, labor and time consumption
Inactive Publication Date: 2021-03-12
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0006] In order to solve the above problems, the object of the present invention is to provide a quantitative experimental method for the response of shale physical properties under the influence of multi-factor coupling. This method can reduce investment funds while reflecting the real impact of each factor on the target properties as much as possible. The production molding cycle is shortened, and the phenomenon of labor and time consumption is avoided
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[0031] A quantitative experimental method for the response of shale physical properties under the influence of multi-factor coupling, the specific process is as follows figure 1 shown, including the following steps:
[0032] S1: Establish the physical properties of the shale to be studied, and determine the inducing factors and quantities (fixed factors) that affect the physical properties of the shale for the physical properties;
[0033] Select the elastic properties of shale as the research target, and after establishing the research target, further determine the physical parameters that can characterize the physical properties. In this example, the longitudinal and transverse wave anisotropy parameters, Young's modulus anisotropy parameters and brittleness parameters are selected as the measurement Metrics for experiment results.
[0034] The calculation formula of each elastic parameter is as follows:
[0035] Longitudinal wave anisotropy parameters:
[0036] Shear...
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Abstract
The invention provides a quantitative experiment method for shale physical property response under influence of multi-factor coupling. The quantitative experiment method comprises the steps of S1, determining the physical property of shale to be researched, and determining induction factors and the number; S2, determining the specific gravity change quantity of each induction factor according to the quantity of the induction factors and the coupling relationship between the induction factors; S3, introducing an orthogonal experiment design method of mathematical statistics category, selectinga corresponding orthogonal table, determining the specific proportion and combination of all induction factors under all levels according to the orthogonal table, and determining the proportion of shale modeling components and modeling conditions; S4, constructing a controllable artificial shale sample to be detected by adopting an artificial shale modeling technology based on a hot pressing method; and S5, testing the physical properties of the built series of rock samples through a rock experiment, and decoupling the quantitative influence relationship of different influence factors on the physical properties by adopting a mathematical statistics method. The method can effectively solve the ubiquitous problem of quantitative research on the physical property response under the influenceof rock multi-factor coupling in the field of geophysics.
Description
technical field [0001] The invention relates to the field of geological and geophysical research technology and laboratory testing, in particular to a quantitative experimental method for the response of shale physical properties under the influence of multi-factor coupling. Background technique [0002] Shale is located in a large geological and geophysical environment. The properties of shale are affected by many geological factors such as buried depth, pressure, organic matter content, etc., and the final properties are a comprehensive reflection of many influencing conditions. But at the level of actual research and application, it is more hoped to separate the comprehensive influence of multiple factors from the general background, and then obtain the specific influence of a single factor on the result. [0003] If the influence of each single factor affecting shale physical properties on the target properties can be separated, the overall situation of the area can be r...
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IPC IPC(8): G01N33/24G06F17/18
CPCG01N33/24G06F17/18
Inventor 谢剑勇曹俊兴张俊杰刘浩运方艳萍
Owner CHENGDU UNIVERSITY OF TECHNOLOGY