The invention relates to a deep draft dry tree semi-submersible platform which comprises a ship body, a water ballast tank, an upper module and a mooring system, the water ballast tank, the upper module and the mooring system are installed on the ship body, and the ship body comprises a plurality of bypass channels, a plurality of node channels, a plurality of stand columns and a heaving body. A plurality of bypass channels and a plurality of node channels are connected in a staggered mode to form a rectangular-ambulatory-plane frame, a heaving body is arranged on the outer side of the rectangular-ambulatory-plane frame, a stand column is arranged above each node channel, an upper module is arranged above each stand column, water ballast tanks are arranged on the bypass channels and the node channels respectively, and mooring systems are further arranged on the stand columns. The heaving performance of the platform is optimized by additionally arranging the heaving body, optimizing the main scale and draught and the like, the technical requirement for oil extraction of the dry tree is met, the platform application water depth range is wider, the deck area is larger, the variable load is larger, overall installation is easy, economical efficiency is good, and the application range is wide. The method is combined with the advantages of low drilling cost, low operation and maintenance cost and high oil and gas recovery efficiency of a dry Christmas tree.
本发明涉及一种深吃水干树半潜平台,包括船体、压载水舱、上部组块和系泊系统,压载水舱、上部组块和系泊系统分别安装在船体上,船体包括多个旁通通道、多个节点通道、多个立柱和垂荡体,多个旁通通道与多个节点通道交错连接组成回字形框架,回字形框架的外侧设有垂荡体,并且,每一个节点通道上方设有一个立柱,立柱上方设有上部组块,压载水舱分别设置在旁通通道、节点通道上,立柱上还设有系泊系统。本发明通过增设垂荡体、优化主尺度以及吃水等方式优化平台垂荡性能,满足干树采油的技术要求,平台应用水深范围更广、甲板面积更大、可变载荷更大、整体安装简单、经济性好,与干式采油树钻井成本低、运维费用低、油气采收率高的优势相结合。
Deep-draft dry tree semi-submersible platform and design method thereof
一种深吃水干树半潜平台及其设计方法
2025-01-21
Patent
Electronic Resource
Chinese
IPC: | B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS |
REVIEW OF DRY TREE WELL CONDUCTOR TENSIONING FOR A DEEP DRAFT SEMI-SUBMERSIBLE
British Library Conference Proceedings | 1999
|DOAJ | 2016
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