Title:
SOLID FLUIDIZATION GREEN MINING APPARATUS AND METHOD FOR SHALLOW-LAYER NATURAL GAS HYDRATES IN SEABED
Document Type and Number:
WIPO Patent Application WO/2019/205182
Kind Code:
A1
Abstract:
A solid fluidization green mining apparatus and method for shallow-layer natural gas hydrates in a seabed, the mining apparatus comprising a sea surface support system, a pipeline conveying system and a seabed drilling and mining system. The sea surface support system comprises a hydrate drilling and mining ship (1) which floats on sea water. The pipeline conveying system comprises a double-layered continuous oil pipe (5) and a recoverable duct (8). The seabed drilling and mining system comprises a hydrate slurry separator (9), a single-screw pump (17), a hydrate drill bit (15), and an injector (13) that is internally provided with a differential pressure sliding sleeve (14).
Inventors:
TANG YANG (CN)
WANG GUORONG (CN)
ZHOU SHOUWEI (CN)
LIU QINGYOU (CN)
ZHONG LIN (CN)
LI WANG (CN)
LI QINGPING (CN)
FU QIANG (CN)
HE YUFA (CN)
WANG CHUAN (CN)
WANG LEIZHEN (CN)
WANG GUORONG (CN)
ZHOU SHOUWEI (CN)
LIU QINGYOU (CN)
ZHONG LIN (CN)
LI WANG (CN)
LI QINGPING (CN)
FU QIANG (CN)
HE YUFA (CN)
WANG CHUAN (CN)
WANG LEIZHEN (CN)
Application Number:
PCT/CN2018/085796
Publication Date:
October 31, 2019
Filing Date:
May 07, 2018
Export Citation:
Assignee:
UNIV SOUTHWEST PETROLEUM (CN)
International Classes:
E21B43/38; E21B43/01; E21B43/40
Foreign References:
| CN107448176A | 2017-12-08 | |||
| CN107642346A | 2018-01-30 | |||
| CN105545257A | 2016-05-04 | |||
| US6148911A | 2000-11-21 | |||
| US5076364A | 1991-12-31 |
Attorney, Agent or Firm:
CHENGDU JINYING PATENT FIRM (CN)
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