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1. (WO2017152473) SYSTEM AND METHOD FOR TESTING THERMOPHYSICAL PROPERTIES OF ROCK UNDER HIGH PRESSURE CONDITION

Pub. No.:    WO/2017/152473    International Application No.:    PCT/CN2016/079687
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Apr 20 01:59:59 CEST 2016
IPC: G01N 25/20
Applicants: SOUTH CHINA SEA INSTITUTE OF OCEANOLOGY, CHINESE ACADEMY OF SCIENCES
中国科学院南海海洋研究所
Inventors: YANG, Xiaoqiu
杨小秋
LIN, Weiren
林为人
TADAI, Osamu
多田井修
XU, Ziying
徐子英
SHI, Xiaobin
施小斌
Title: SYSTEM AND METHOD FOR TESTING THERMOPHYSICAL PROPERTIES OF ROCK UNDER HIGH PRESSURE CONDITION
Abstract:
A system for testing thermophysical properties of rock under a high pressure condition, comprising two pressure resistant tanks (1, 2), a high-pressure pump (3), a temperature monitoring module (8), and a confining pressure monitoring module (9). The high-pressure pump (3) is connected to a first cavity (11) by means of a first connection pipe (5) on which a first bleeder valve (51) and a first pressure sensor (52) are mounted; a rock sample (4) is mounted in a second cavity (21); temperature sensors (61, 62, 63) are respectively mounted on the center and the outer surface of the rock sample (4) and in the second cavity (21); the first cavity (11) is connected to the second cavity (21) by means of a second connection pipe (7) on which a second bleeder valve (71) and a second pressure sensor (72) are mounted. Also disclosed is a method for testing thermophysical properties of rock under a high pressure condition. Without the use of an electrical heating heat source, the system and method can implement instantaneous loading of the rock sample (4) by quickly opening a second bleeder valve (71), and thermophysical property parameters of the rock sample (4) under a high pressure condition are obtained by means of an established finite element numerical inversion model and in combination with a global optimization method.