Title:
CONSTANT-TEMPERATURE AND CONSTANT-PRESSURE CORE PRESERVATION CHAMBER
Document Type and Number:
WIPO Patent Application WO/2020/034360
Kind Code:
A1
Abstract:
A constant-temperature and constant-pressure core preservation chamber, comprising a mechanical part and a control part. The mechanical part comprises an inner core extraction barrel (8), an outer core extraction barrel (6), and an energy accumulator (29), the outer core extraction barrel (6) is sleeved on the inner core extraction barrel (8), the upper end of the inner core extraction barrel (8) is communicated with a liquid nitrogen storage tank (25), the liquid nitrogen storage tank (25) is located in the outer core extraction barrel (6), the energy accumulator (29) is communicated with the outer core extraction barrel (6), and the outer core extraction barrel (6) is provided with a flap valve (3); the control part comprises an electric heater (214), a temperature sensor (5), an electric control valve (26) provided on a pipe A, a pressure sensor (7), and a three-way stop valve A (210) provided on a pipe B, two ports of the three-way stop valve A (210) are respectively connected to the energy accumulator (29) and the outer core extraction barrel (6), and the third port of the three-way stop valve A (210) is connected to a pressure relief valve (211). The core preservation chamber can automatically control the temperature and pressure in the preservation chamber, so that a core is preserved in the same state as in an in-situ environment.
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Inventors:
GAO MINGZHONG (CN)
XIE HEPING (CN)
ZHANG RU (CN)
CHEN LING (CN)
ZHANG ZETIAN (CN)
ZHANG ZHILONG (CN)
LU YIQIANG (CN)
LI CONG (CN)
HE ZHIQIANG (CN)
HUA XIA (CN)
MING CHUANJIAN (CN)
PENG GAOYOU (CN)
LU TONG (CN)
XIE HEPING (CN)
ZHANG RU (CN)
CHEN LING (CN)
ZHANG ZETIAN (CN)
ZHANG ZHILONG (CN)
LU YIQIANG (CN)
LI CONG (CN)
HE ZHIQIANG (CN)
HUA XIA (CN)
MING CHUANJIAN (CN)
PENG GAOYOU (CN)
LU TONG (CN)
Application Number:
PCT/CN2018/108981
Publication Date:
February 20, 2020
Filing Date:
September 30, 2018
Export Citation:
Assignee:
UNIV SICHUAN (CN)
UNIV SHENZHEN (CN)
UNIV SHENZHEN (CN)
International Classes:
E21B25/10
Foreign References:
| CN106124242A | 2016-11-16 | |||
| CN102561970A | 2012-07-11 | |||
| CN102182414A | 2011-09-14 | |||
| CN108150122A | 2018-06-12 | |||
| CN107165597A | 2017-09-15 | |||
| CN108360994A | 2018-08-03 | |||
| US6000481A | 1999-12-14 |
Attorney, Agent or Firm:
GAOYUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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