Title:
A SUBSEA WELLHEAD ARRANGEMENT FOR HYDRAULICALLY PUMPING A WELL
Document Type and Number:
WIPO Patent Application WO2006033906
Kind Code:
B1
Abstract:
A subsea well pumping system for installing and retrieving a hydraulically actuated down hole pump employed within tubing suspended within casing extending above a seabed including a wellhead assembly affixed to the upper end of the casing and a remotely controllable main valve affixed to the tubing, a tubular pump lubricator affixed to the main valve, a removable pump latch sealably closing the pump lubricator and having a pump catcher extending downwardly therefrom for removably latching onto the pump and a system for guiding the pump suspended form the pump catcher into the pump lubricator whereby the pump can be moved downwardly in the tubing into a pumping position by fluid injected into the tubing and can be moved upwardly in the tubing into a retrievable position for grasping by the pump catcher by fluid injected into the casing.
Inventors:
KELLY MELVIN E (US)
JENKINS CHRISTOPHER H (US)
JENKINS CHRISTOPHER H (US)
Application Number:
PCT/US2005/032669
Publication Date:
March 29, 2007
Filing Date:
September 14, 2005
Export Citation:
Assignee:
KELLY MELVIN E (US)
JENKINS CHRISTOPHER H (US)
JENKINS CHRISTOPHER H (US)
International Classes:
E21B29/12; E21B7/12; E21B33/00
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