E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/51.6
E21B 23/03 (2006.01) E21B 23/04 (2006.01) E21B 23/08 (2006.01) E21B 23/10 (2006.01) E21B 33/076 (2006.01)
Patent
CA 1161750
Abstract of the Disclosure A pumpdown well completion system for pumpdown well servicing of remotely located wells such as subsea wells including particularly a parking tool and a parking tool landing nipple for a pumpdown flowline to permit pumping a tool train to the landing nipple using a large size piston unit and thereafter pumping a section of the tool train be- yond the landing nipple using small size piston units. The parking tool includes a central mandrel having a coupling collet telescopically engaged in a housing having a parking collet. The mandrel is telescopically engaged in the housing for movement between a first traveling position at which the coupling collet connects a large size section of a tool train with a small size section and a second release position at which the small size tool train section is released from the parking tool. The housing includes a parking collet operated by movement of the coupling collet for releasably locking the parking tool in the landing nipple when the coupling collet moves to a release position. The landing nipple is a dual wall flow conductor having an inner parking tube including a stop shoulder and a locking recess and fluid bypass ports longitudinally spaced on either side of the parking position of the parking tool and an outer housing defining an annular bypass flow passage between the ports.
385498
Long Olen R.
Schwendemann Kenneth L.
Otis Engineering Corporation
Riches Mckenzie & Herbert Llp
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