F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/142, 166/70
F04B 47/02 (2006.01)
Patent
CA 1135996
ABSTRACT OF THE DISCLOSURE A downhole tool suction screen assembly includes a top screen assembly adapter, a lower screen assembly adapter, and a tubular screen mandrel connected between the top and lower screen assembly adapters. A cylindrical pump screen is disposed about an outer surface of the screen mandrel. A flow tube is disposed concentrically within the screen mandrel. An inner mandrel is disposed concentrically within the flow tube. A seal mandrel engages upper ends of the inner mandrel and flow tube. The seal mandrel has a central bore communicated with an interior of the inner mandrel and has a longitudinal bore communicated with an annulus between the inner mandrel and the flow tube. The seal mandrel also includes a central outer cylindrical surface spaced radially inward from an inner surface of the upper screen assembly adapter. The seal man- drel includes first and second successively reduced diameter upwardly extending cylindrical outer surfaces which are con- nected by an upward facing shoulder. The seal mandrel further includes first and second successively reduced diameter down- wardly extending cylindrical outer surfaces connected by a downward facing shoulder. The longitudinal bore of the seal mandrel communicates the upward and downward facing shoulders of the seal mandrel.
382827
Company Halliburton
Swabey Ogilvy Renault
LandOfFree
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