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Patent Searching and Data


Title:
MULTI-PASSAGE PIPE ASSEMBLY
Document Type and Number:
WIPO Patent Application WO2001092768
Kind Code:
A3
Abstract:
A well production apparatus includes a down-hole gear pump and a transport assembly to which the gear pump is attached. The transport assembly is formed from a string of modular pipe assemblies (520) having one or more passages (554, 556, 558, 560) for carrying production fluid from the bottom of the well to the surface. The passages can be arranged in a side-by-side configuration, and include pressure and return lines such as used to drive a hydraulic motor connected to the gear pump. The modular pipe assemblies can have two, three, four, or more passages, and can be stepped relative to each other to give a unique assembly orientation. The modular assemblies have mating fitting that can be tightened without the need to spin the pipe joints at the same time.

Inventors:
THOMAS WAYNE (CA)
MORCOM GARY (CA)
Application Number:
CA0100789W
Publication Date:
April 04, 2002
Filing Date:
May 29, 2001
Export Citation:
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Assignee:
PANCANADIAN PETROLEUM (CA)
THOMAS WAYNE (CA)
MORCOM GARY (CA)
International Classes:
A61M39/00; E21B17/18; F16L39/00; (IPC1-7): E21B17/18; F16L39/00
Foreign References:
US4424859A1984-01-10
US4836305A1989-06-06
US5246070A1993-09-21
FR2526853A11983-11-18
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