FN Archimer Export Format
PT J
TI A Long Gravity-Piston Corer Developed for Seafloor Gas Hydrate Coring Utilizing an In Situ Pressure-Retained Method
BT 
AF CHEN, Jia-Wang
   FAN, Wei
   BINGHAM, Brian
   CHEN, Ying
   GU, Lin-Yi
   LI, Shi-Lun
AS 1:1,2;2:3;3:2;4:1,4;5:4;6:4;
FF 1:;2:;3:;4:;5:;6:;
C1 Zhejiang Univ, Ocean Coll, Hangzhou 310058, Peoples R China.
   Univ Hawaii, Dept Mech Engn, Honolulu, HI 96822 USA.
   Hangzhou Dianzi Univ, Dept Ocean Engn, Hangzhou 310018, Peoples R China.
   Zhejiang Univ, State Key Lab Fluid Power Transmiss & Control, Hangzhou 310027, Peoples R China.
C2 UNIV ZHEJIANG, CHINA
   UNIV HAWAII, USA
   UNIV HANGZHOU DIANZI, CHINA
   UNIV ZHEJIANG, CHINA
IN DOAJ
IF 1.602
TC 25
UR https://archimer.ifremer.fr/doc/00264/37516/35842.pdf
LA English
DT Article
CR MD 130 / CADO
   MD 190 / CIRCEA
BO Marion Dufresne
DE ;gas hydrate corer;in situ pressure-retained corer;mechanism of coring;long coring;gravity-piston;key pressure-retained structure
AB A corer, which can obtain long in situ pressure-retained sediments of up to 30 m core containing gas hydrates, has been applied in the South China Sea (SCS) dozens of times. The corer presented in this paper is a convenient, efficient and economical long in situ pressure-retained coring and research tool for submarine sediments, that can applied to completely cope with all sediments close to the seafloor ranging from shallow waters to the deep sea depths of 6000 m. This article mainly presents the overall structure, working principles, key pressure-retained components, coring mechanism, sea trials and outlook of the corer. The analyses found that the coring ability was affected by formation characteristics, the outer diameter of the core barrels and inner diameter of the core liners, the shapes of the cutter and the dead weight of the corer. This study can provide the practical basis for the structural optimization of this type of corer and designs for corers with greater penetrability. Sea trials showed that the developed corer presented in this paper can support the in situ pressure of the seafloor sediment core, which is an improvement over the conventional piston corer.
PY 2013
PD JUN
SO Energies
SN 1996-1073
PU Mdpi Ag
VL 6
IS 7
UT 000322185100015
BP 3353
EP 3372
DI 10.3390/en6073353
ID 37516
ER

EF