Title:
EFFICIENT NATURAL GAS HYDRATE EXPLOITATION SYSTEM CAPABLE OF COMPENSATING FOR HEAT OF RESERVOIR STRATUM BY USING FLUE GAS WASTE HEAT/SOLAR ENERGY ABSORPTION HEAT PUMP
Document Type and Number:
WIPO Patent Application WO/2022/011796
Kind Code:
A1
Abstract:
An efficient natural gas hydrate exploitation system capable of compensating for the heat of a reservoir stratum by using a flue gas waste heat/a solar absorption heat pump, comprising three parts, i.e., a solar energy-flue gas waste heat-based heat source system, an absorption heat pump system, and a seafloor hydrate exploitation system, to achieve efficient exploitation of seafloor natural gas hydrate by means of heat compensation. By using low-grade heat energy of an offshore platform, the problems of heat source and energy consumption during natural gas hydrate exploitation are solved, and a commercially feasible solution is provided for achieving large-scale natural gas hydrate exploitation. A condenser module, an evaporator module, and an injection well module of the system can be flexibly added or removed, so as to adapt to the distribution of multiple actual hydrate reservoir strata. The injection well module uses a ball-shaped spray nozzle (23) which can dispersedly and evenly inject hot injection water into the reservoir stratum so as to facilitate fast and effective transfer of heat of the reservoir stratum, thereby improving the speed of compensating for the heat of the reservoir stratum.
Inventors:
SONG YONGCHEN (CN)
YANG MINGJUN (CN)
WANG XINRU (CN)
ZHENG JIANAN (CN)
ZHAO JIAFEI (CN)
JIANG LANLAN (CN)
YANG MINGJUN (CN)
WANG XINRU (CN)
ZHENG JIANAN (CN)
ZHAO JIAFEI (CN)
JIANG LANLAN (CN)
Application Number:
PCT/CN2020/111716
Publication Date:
January 20, 2022
Filing Date:
August 27, 2020
Export Citation:
Assignee:
UNIV DALIAN TECH (CN)
International Classes:
E21B43/01; E21B43/24; E21B43/295; E21B43/30; E21B43/34; F01K17/00; F24S20/40; F25B27/00; F25B27/02; F25B30/02
Foreign References:
| CN108005618A | 2018-05-08 | |||
| CN105840159A | 2016-08-10 | |||
| CN1690360A | 2005-11-02 | |||
| CN108387013A | 2018-08-10 | |||
| CN106593372A | 2017-04-26 | |||
| US4110628A | 1978-08-29 |
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