DOWNHOLE HYDRAULIC COUPLING ASSEMBLY

Title:

DOWNHOLE HYDRAULIC COUPLING ASSEMBLY

Document Type and Number:

WIPO Patent Application WO/2011/088013

Kind Code:

A3

Abstract:

A completions system utilizing a unique hydraulic coupling. The system includes an upper completion stinger configured for coupling to a lower completion tubular. Both the stinger and the tubular are outfitted with hydraulic lines therethrough. Thus, as the stinger is coupled to the tubular, hydraulic lines are also coupled. However, the termination of each line is sealingly covered by a slidable sleeve in advance of attaining the coupling between the stinger and tubular. Therefore, the lines are protected from contamination during potentially significant periods of well deployment that may occur in advance of completed coupling and system installation. Furthermore, the manner of hydraulic coupling between the stinger and tubular reduces the likelihood of damage to the hydraulic lines during the installation process.

Inventors:

DU MICHAEL HUI (US)
RYTLEWSKI GARY (US)
WANG DAVID WEI (US)

Application Number:

PCT/US2011/020765

Publication Date:

November 17, 2011

Filing Date:

January 11, 2011

Export Citation:

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Assignee:

SCHLUMBERGER CA LTD (CA)
SCHLUMBERGER SERVICES PETROL (FR)
SCHLUMBERGER HOLDINGS (GB)
SCHLUMBERGER TECHNOLOGY BV (NL)
PRAD RES & DEV LTD (GB)
SCHLUMBERGER TECHNOLOGY CORP (US)
DU MICHAEL HUI (US)
RYTLEWSKI GARY (US)
WANG DAVID WEI (US)

International Classes:

E21B17/02; E21B17/06; E21B23/04; F16L25/00

Foreign References:

US4347900A	1982-09-07
US4637469A	1987-01-20
US20080317547A1	2008-12-25
US20090056934A1	2009-03-05

Other References: