GAS PRODUCTION METHOD AND SYSTEM FOR NATURAL GAS HYDRATE EXPLOITATION

WIPO Patent Application WO/2019/134220

A1

A gas production method and system for natural gas hydrate exploitation. The gas production method uses the gas lift effect of methane gas released by decomposition of a natural gas hydrate to transport gas hydrate from the bottom of a production well to an offshore platform via a marine vertical pipe, thereby realizing controlled flow production of a marine natural gas hydrate. The gas production system comprises an offshore platform (9) having a gas-liquid separator (8), a gas storage tank (7), and a compressor (6), a production well (13) vertically disposed on a seabed rock layer, a marine vertical pipe (10), and a submarine gas-liquid cyclone separator (11). The gas production method and apparatus are simple, easy to operate, consume less energy and eliminate the need for moving equipment on the seabed. Industrialization and automated production is easily achieved, effectively avoiding the risk of clogging caused by the formation of a secondary hydrate in the marine vertical pipe. The method and system have a wide application range.

JPS60212591	EQUIPMENT FOR MINING ORE FROM SEA BOTTOM
JP6762150	Underwater resource collection method and system
WO/2022/093036	METHOD OF ESTIMATING POLYMETALLIC NODULE ABUNDANCE

CHEN ZHAOYANG (CN)
LI XIAOSEN (CN)
ZHANG JINMING (CN)
ZHANG YU (CN)
LI GANG (CN)
LV QIUNAN (CN)
WANG YI (CN)
YAN KEFENG (CN)

PCT/CN2018/076449

July 11, 2019

February 12, 2018

Click for automatic bibliography generation  

GUANGZHOU INST ENERGY CONVERSION CAS (CN)

E21C50/00

CN101016841A	2007-08-15
CN106761588A	2017-05-31
CN103216219A	2013-07-24
RU2617748C1	2017-04-26
RU2550164C1	2015-05-10
US20120193103A1	2012-08-02

GUANGZHOU KEYUE I.P. LAW OFFICE (CN)

View/Download PDF      PDF Help

Previous Patent: WEBPAGE ADVERTISEMENT ANTI-SHIELDING METHOD, CONTENT DISTRIBUTION NETWORK AND CLIENT

Next Patent: GOA CIRCUIT