Method and apparatus to determine wellhead level

Details Method and apparatus to determine wellhead level Method and apparatus to determine wellhead level

1992-03-18

1993-09-14

Britts, Ramon S.

Wells

Processes

With indicating, testing, measuring or locating

166368, 33304, E21B 4702

Patent

active

052440400

ABSTRACT:
The angular misalignment of a wellhead is determined by lowering onto the wellhead an assembly having centering means depending from a base plate and level indicator means fixed on top of the plate. The assembly is suspended from the end of a drillstring which carries a level monitoring means.

REFERENCES:
patent: 1891401 (1932-12-01), Bowlus
patent: 2046956 (1936-07-01), Lynch et al.
patent: 2184931 (1939-12-01), Straatman et al.
patent: 2301307 (1942-11-01), McMahan
patent: 2514492 (1950-07-01), Hayward
patent: 3869806 (1975-03-01), Humphrey
patent: 4164817 (1979-08-01), Walker
patent: 4385449 (1983-05-01), Miller
patent: 4852265 (1989-08-01), Rando et al.

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