The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 1983
Filed:
Jan. 27, 1981
Kenneth L Schwendemann, Lewisville, TX (US);
Olen R Long, Celina, TX (US);
Otis Engineering Corporation, Dallas, TX (US);
Abstract
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 beyond 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.