Method of securing a tubular member within an annular well membe

Details Method of securing a tubular member within an annular well membe Method of securing a tubular member within an annular well membe

1988-07-11

1990-01-09

Dang, Hoang C.

Wells

Processes

Assembling well part

29523, 166208, 166380, 285140, 2853825, E21B 3304

Patent

active

048921491

ABSTRACT:
The present invention relates to an improved well structure and the method of connecting the support ring to the well string within the well bore which includes the steps of lowering the support ring into the well bore in surrounding relationship to the well string and into seated position in the housing seat, lowering a pressure forming tool through the well string to the level of the support ring, pressurizing the tool to form the well string into tight secured and sealed relationship within the support ring and recovering the tool from the well string. The tool includes a means of increasing the pressure used in the forming process without subjecting the interior of the string along its full length to such forming pressure. The structure includes a support ring with an exterior shoulder for engaging the seat within the housing, a sealing profile of a plurality of internal grooves each of which is partially filled with pressure compensating material and a gripping profile of a plurality of gripping teeth. The improved well structure includes the support ring and a tubular element within the support ring deformed into tight gripping and sealing engagement with the interior of the support ring.

REFERENCES:
patent: 2134311 (1938-10-01), Minor et al.
patent: 3191677 (1965-06-01), Kinley
patent: 3434194 (1969-03-01), Whittaker et al.
patent: 3712376 (1973-01-01), Owen et al.
patent: 4388752 (1983-06-01), Vineiguerra et al.
patent: 4485547 (1984-12-01), Busse
patent: 4648626 (1987-03-01), Vincignerra et al.
patent: 4662663 (1987-05-01), Schmitz

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