E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
26/111, 166/42
E21B 34/06 (2006.01) E21B 23/03 (2006.01) E21B 43/12 (2006.01)
Patent
CA 1144066
SIDE POCKET MANDREL AND METHOD OF CONSTRUCTION Abstract of the Disclosure An improved side pocket mandrel having a body comprising a one-piece main body section in which a main bore and a recep- tacle bore extend longitudinally therein and an upper body section having space therein for operating a kickover tool, welded together with a circumferential weld. In another embodiment, the machined main body section is welded by circum- ferential welds between upper and lower body sections. Addi- tional embodiments are further disclosed having means therein for orienting kickover tools which are run and manipulated by wireline or pumpdown techniques and also having deflectors therein for deflecting regular well tools back into the main passage when approaching the receptacle from above and yet guilding flow control devices into the receptacle when such device is moved laterally into alignment with the receptacle by a kickover tool. Some disclosed embodiments have check valve means controlling flow between the exterior and the interior thereof. Methods of constructing such side pocket mandrels and methods of welding tubular members, such as body sections of such mandrels, together with circumferential welds are also disclosed.
360055
Higgins Robert S.
Merritt David T.
Otis Engineering Corporation
Smart & Biggar
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