Multi-rigid-block-body multistage multi-position extension-retraction deformation physical simulation experiment method
A technology of physical simulation and experimental method, which is applied in the direction of testing the strength of materials by applying stable tension/pressure, and can solve problems such as single method
Inactive Publication Date: 2019-06-11
NORTHEAST GASOLINEEUM UNIV
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[0003] The purpose of the present invention is to provide multi-period and multi-direction expansion-contraction deformation physical simulation experiment method of multi-rigid block, this multi-period multi-direction expansion-contraction deformation physical simulation experiment method is used to solve the prior art using two-dimensional Or the three-dimensional sand box physical simulation experiment method only studies the deformation process in one direction, and the method is relatively simple
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Embodiment 1
[0048] By obtaining geological information and structural overview of the study area, the distribution characteristics of two pre-existing faults F1 and F2 in the basement of the study area were determined; Index and other methods are used to determine the fault activity period, activity intensity and tectonic evolution process in the study area, and it is determined that there are multiple periods of extension and compression deformation in different directions in the study area, including: EW extension in the Huoshiling Formation and Shahezi Formation , the end of the Shahezi Formation was EW-directed extrusion; the first member of the Yingcheng Formation was EW-directed extension and EW-terminal extrusion; the third member of the Yingcheng Formation was nearly NW-directed extension, and the end of the third member of the Yingcheng Formation was NW-directed extrusion.
[0049] According to the size of the actual research area: the aspect ratio of the research area is about 51...
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Abstract
The invention relates to a multi-rigid-block-body multistage multi-position extension-retraction deformation physical simulation experiment method, which comprises the following steps of obtaining thestratum information and construction condition of a research region; clearly defining the existing construction distribution features of a substrate; performing systematic interpretation on the faultby using earthquake data; analyzing the geometrical and kinematics features of the fault according to the fault fine interpretation results; judging the current stage stress field direction; compiling a construction development history balance profile; clearly defining the fault activity stage number and the intensity; designing an experiment model at equal proportion by determining the proportion of the practical region and the experiment model; determining the shape and the placement features of a rigid model according to the substrate fracture form and features; selecting proper experimentmaterials; determining the material laying thicknesses; loading an experiment power device; performing staged deformation; laying an experiment material; and recording experiment process data and experiment results to obtain the experiment conclusion. The method provided by the invention is used for studying multistage deformation superimposed basin structures, and the simulation results are wellanastomotic with the practical deformation features.
Description
Technical field: [0001] The invention relates to an experimental method for sandbox physical simulation of fault activity evolution in oil-gas-bearing basins in the field of structural geology, in particular to a physical simulation experimental method for multi-rigid blocks, multi-period, multi-direction expansion-contraction deformation. Background technique: [0002] For oil and gas-bearing basins, in the geological history period, the basin did not only experience one tectonic movement, but the early basement faults experienced multiple stages of stretching and compression in different directions in the late period, and the superposition caused the reactivation of the pre-existing faults , which makes the current fault and strata distribution in the study area very complex, with the characteristics of multi-stage superposition. The existing technology adopts two-dimensional or three-dimensional sand box physical simulation experiment method to simulate the geological evo...
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IPC IPC(8): G01N3/08
Inventor 王琦孙永河陈树民付晓飞王有功刘志达
Owner NORTHEAST GASOLINEEUM UNIV
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