Title:
PRODUCTION WELL APPARATUS FOR UNDERGROUND COAL GASIFICATION AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2018/035733
Kind Code:
A1
Abstract:
A production well apparatus for underground coal gasification and an underground coal gasification method using same. The production well apparatus comprises a well head apparatus, a sleeve (8), a product pipe (1), a coolant pipe (3), and a monitoring meter system (7). Coolant is injected, during underground coal gasification, to be in contact and mixed with product gas, and the product gas is discharged after cooled, such that the operation is safer and more controllable. Moreover, most of the components of the production well apparatus can be completely or partially recycled and reused after the gasification is completed.
Inventors:
BURGER CASPER JAN HENDRIK (CN)
WANG YUANLI (CN)
MIN ZHENHUA (CN)
WANG YUANLI (CN)
MIN ZHENHUA (CN)
Application Number:
PCT/CN2016/096482
Publication Date:
March 01, 2018
Filing Date:
August 24, 2016
Export Citation:
Assignee:
ZHONGWEI SHANGHAI ENERGY TECH CO LTD (CN)
International Classes:
E21B43/295
Domestic Patent References:
| WO2013090979A1 | 2013-06-27 |
Foreign References:
| GB2501074A | 2013-10-16 | |||
| GB807195A | 1959-01-07 | |||
| CN106089179A | 2016-11-09 | |||
| CN206053928U | 2017-03-29 | |||
| RU2177544C2 | 2001-12-27 | |||
| RU2358101C1 | 2009-06-10 | |||
| RU2287056C1 | 2006-11-10 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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