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U.S. Department of Energy
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Liuhua 11-1 development -- Subsea production system overview

Conference ·
OSTI ID:433996

The Liuhua 11-1 Field is being developed using 20 subsea-completed wells. The development capitalizes on an innovative Modular Building Block method that does not require a seafloor template structure for the field`s diverless subsea production system. The modular assemblies are installed on the seafloor from semi-submersible floating production system while simultaneous in-field drilling and well completion activities are conducted. Electrical pumps downhole drive produced fluids through subsea pipelines to a floating production, storage, and offloading facility. The Liuhua 11-1 Development subsea system uses new and emerging diverless technology in several key areas. These include: a modular seafloor commingling production manifold system for multiple wells; wet-mateable electrical power connectors; horizontal spool trees and associated running tools; remotely operated vehicle (ROV) intervention packages; on-site-fabricated, rigid flowline and pipeline connections; and ROV-deployed, control-umbilical jumpers and instrument packages.

OSTI ID:
433996
Report Number(s):
CONF-960525--
Country of Publication:
United States
Language:
English

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