Soft landing system and method of achieving same
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United States of America Patent
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May 24, 2016
Grant Date -
Apr 30, 2015
app pub date -
Jan 5, 2015
filing date -
Oct 20, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A subsea wireline system for soft landing equipment during installation. The subsea soft landing wireline system includes coarse alignment members that can be part of a tree and interact with a funnel located on the equipment to be installed by the soft landing system. Smaller alignment members can provide fine alignment and also interact with a funnel located on the equipment to be installed. The funnels are used to trap sea water that provides a cushion for the equipment being installed. Once in alignment, trapped water can be released from the funnel via a restricted orifice or a control valve located on an ROV. The system achieves soft landing without the use of a running tool, thus reducing expense.
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