US 12,066,424 B1
Deep rock in situ environment reconstruction and integrated three-dimensional mechanical- thermo-acousto-seismic-flow testing method
Minghui Li, Shenzhen (CN); Heping Xie, Shenzhen (CN); Jun Lu, Shenzhen (CN); Mingzhong Gao, Shenzhen (CN); Cunbao Li, Shenzhen (CN); Hongwei Zhou, Shenzhen (CN); Cancan Chen, Shenzhen (CN); Zhouqian Wu, Shenzhen (CN); and Delei Shang, Shenzhen (CN)
Assigned to SHENZHEN UNIVERSITY, Shenzhen (CN)
Filed by SHENZHEN UNIVERSITY, Shenzhen (CN)
Filed on Feb. 27, 2024, as Appl. No. 18/588,083.
Claims priority of application No. 202310192077.2 (CN), filed on Mar. 2, 2023.
Int. Cl. G01N 33/24 (2006.01); G01N 29/04 (2006.01); G01N 29/22 (2006.01); G01N 29/44 (2006.01)
CPC G01N 33/24 (2013.01) [G01N 29/046 (2013.01); G01N 29/223 (2013.01); G01N 29/228 (2013.01); G01N 29/4409 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A deep rock in situ environment reconstruction and integrated three-dimensional mechanical-thermo-acousto-seismic-flow testing method, comprising the following steps:
S1: preparing a cubic sample;
S2: placing the cubic sample in a sample holder, wherein the sample holder is provided with ports that are adapted to indenters in upper, lower, left, right, front and rear directions;
S3: respectively extending front ends of the 6 indenters into the sample holder from the ports of the sample holder in 6 directions to contact with six faces of the cubic sample;
wherein the front end of each indenter is provided with a plurality of permeation holes, each indenter is provided with a seepage medium channel, and one end of the percolation medium channel is communicated with the plurality of permeation holes; the front end of the indenter is provided with a temperature sensor, a heat flow sensor, an acoustic emission probe and an ultrasonic probe;
S4: placing the 6 indenters, the cubic sample and the sample holder in a box body, and mounting 6 butting indenters to 6 faces of the box body, wherein the butting indenters can move axially relative to the box body, and front ends of the 6 butting indenters are respectively butted with rear ends of the 6 indenters;
S5: placing the box body on a loading frame beam of a three-axis six-direction loading system, wherein 6 hydraulic actuators of the three-axis six-direction loading system are each butted with a rear end of one of the butting indenters;
S6: making inner edges of the ports of the sample holder in 6 directions in sealing contact with the cubic sample;
S7: comprising:
stress loading: performing stress loading on the cubic sample by using a hydraulic actuator;
filling a fluid medium into the cubic sample through the percolation medium channel;
wherein the following data are dynamically measured: fluid pressure, deformation of the cubic sample, percolation fluid flow, acoustic wave data and acoustic emission data.