Wells – Processes – Placing or shifting well part
Patent
1988-02-04
1989-12-19
Neuder, William P.
Wells
Processes
Placing or shifting well part
175423, 188 67, 285144, E21B 1910
Patent
active
048876739
ABSTRACT:
A bowl-slip assembly is used to complete shallow wells having a tension set hold down device such as a packer or tubing anchor. The bowl includes a trap door which is opened to allow the bowl to pass around the tubing string and rest on an underlying well head support, such as a tubing head. The trap door is closed and a short set of slips placed to receive the load of the tubing string and transfer it to the tubing head at a time when it is necessary to attach a Christmas tree to the tubing string and tubing head. The trap door bowl and slips are easily installed and removed and require a minimum clearance between the top of the tubing head flange and the bottom flange of the Christmas tree.
REFERENCES:
patent: 1502628 (1924-07-01), Hanna
patent: 1579648 (1926-04-01), Crickmer
patent: 1650074 (1927-11-01), Kammerdiner
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patent: 1986283 (1935-01-01), Penick et al.
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patent: 2712455 (1955-07-01), Neilon
patent: 3330354 (1967-07-01), Chamblee
patent: 4279308 (1981-07-01), Gray et al.
TRW Mission Catalog C900, Jul. 1984.
Foster Oilfield Equipment Co. catalog FOEC 0286, Feb. 1986.
Moller G. Turner
Neuder William P.
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