Flexible casing for well boreholes

Details Flexible casing for well boreholes Flexible casing for well boreholes

1991-04-17

1993-12-14

Nicholson, Eric K.

Pipe joints or couplings

Flexible joint, rigid members

Bellows

138121, 285226, 285114, F16L 7710, F16L 5102

Patent

active

052695700

ABSTRACT:
Tubulars for casing a well borehole which are drilled by high angle or horizontal drilling techniques. The tubulars contain an annularly disposed upset whose cross sectional shape is omega-like. This omega-like upset enables the tubulars to be set around the curved section of the borehole without detrimental buckling.

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