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US08991503B2 Subsea wellhead assembly 有权
海底井口总成

Subsea wellhead assembly
摘要:
A subsea wellhead assembly is provided. The subsea wellhead assembly comprises a tubing head structure with a tree above the tubing head structure, and a recoverable module attached to the tubing head structure below said tree, the recoverable module comprising at least one valve and at least one sensor.
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