US 11,054,351 B2
Strain and acoustic wave testing device and method for high-temperature rock sample
Gao Li, Chengdu (CN); Ze Chen, Chengdu (CN); Yijian Chen, Chengdu (CN); Xin Yu, Chengdu (CN); Dong Liu, Chengdu (CN); and Yi Zhang, Chengdu (CN)
Assigned to SOUTHWEST PETROLEUM UNIVERSITY, Chengdu (CN)
Appl. No. 16/305,943
Filed by SOUTHWEST PETROLEUM UNIVERSITY, Chengdu (CN)
PCT Filed Sep. 27, 2017, PCT No. PCT/CN2017/103762
§ 371(c)(1), (2) Date Nov. 30, 2018,
PCT Pub. No. WO2018/233120, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. 201710484758.0 (CN), filed on Jun. 23, 2017.
Prior Publication US 2020/0333221 A1, Oct. 22, 2020
Int. Cl. G01N 3/08 (2006.01); G01N 3/06 (2006.01); G01N 33/24 (2006.01); G01D 21/02 (2006.01); G01N 3/12 (2006.01); G01N 29/04 (2006.01); G01N 3/18 (2006.01)
CPC G01N 3/08 (2013.01) [G01D 21/02 (2013.01); G01N 3/06 (2013.01); G01N 33/24 (2013.01); G01N 3/12 (2013.01); G01N 3/18 (2013.01); G01N 29/04 (2013.01); G01N 2203/0019 (2013.01); G01N 2203/0226 (2013.01); G01N 2203/0252 (2013.01); G01N 2203/0256 (2013.01); G01N 2203/0658 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A strain and acoustic wave testing device for a high temperature rock sample, comprising: an upper pressure-bearing head, an acoustic wave transmitting terminal, an upper pressure-bearing shaft, corundum ejector pins, an upper displacement slide, an upper fixed foot block, a lower fixed foot block, a lower displacement slide, a heat insulation shell, a carbon fiber sleeve, a rock sample, a lower pressure-bearing shaft, a lower pressure-bearing head, an acoustic wave receiving terminal, a lower copper electrode, pearl powder, a temperature sensor, a transformer, a temperature-acoustic wave control box, an oscilloscope, an upper copper electrode, and a data collection and processing system,
wherein the carbon fiber sleeve wraps the rock sample and is fixed inside the heat insulation shell through two pairs of upper and lower corundum ejector pins;
a gap between the carbon fiber sleeve and the heat insulation shell is filled with perlite powder;
the upper corundum ejector pins are used to fix the upper displacement slide through the upper fixed foot block, and the lower corundum ejector pins are used to fix the lower displacement slide through the lower fixed foot block;
the upper displacement slide and the lower displacement slide are connected to the data collection and processing system respectively;
an upper end of the rock sample is connected to the acoustic wave transmitting terminal and the upper pressure-bearing head through the upper pressure-bearing shaft, and a lower end of the rock sample is connected to the acoustic wave receiving terminal and the lower pressure-bearing head through the lower pressure-bearing shaft;
the upper copper electrode and the lower copper electrode are mounted on the upper pressure-bearing shaft and the lower pressure-bearing shaft respectively and are connected to the transformer respectively;
a middle end of the rock sample is connected to the temperature sensor, the transformer and the temperature-acoustic wave control box;
the temperature-acoustic wave control box is connected to the oscilloscope, the acoustic wave transmitting terminal and the acoustic wave receiving terminal respectively; and
the carbon fiber sleeve, the temperature sensor, the oscilloscope and the temperature-acoustic wave control box are connected to the data collection and processing system respectively.