Pressure seal for pumping instruments through drill rod

Details Pressure seal for pumping instruments through drill rod Pressure seal for pumping instruments through drill rod

F - Mech Eng,Light,Heat,Weapons

16

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277/27, 33/92

F16J 9/00 (2006.01) E21B 7/04 (2006.01) E21B 23/08 (2006.01) E21B 23/14 (2006.01) E21B 33/072 (2006.01) E21B 47/022 (2006.01) E21F 7/00 (2006.01) F16L 55/00 (2006.01)

Patent

CA 1143399

Abstract of the Disclosure A sealing device for placement between a rotary drill motor and a drill rod for use in pumping instruments down the drill rod comprising a housing having an axial flow passage therethrough, which is split along its longitudinal axis and formed of two half sections joined together. A sealing gasket is provided at each end of the housing which sealingly engages a pipe pressed thereagainst in alignment with the flow passage. A bore is provided through the housing in fluid communication with the flow passage and at an acute angle therewith, the bore being partially formed in each of the half members. Packing means are provided in the bore for sealingly engaging a cable extending therethrough.

355769

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