Well testing apparatus

Details Well testing apparatus Well testing apparatus

1990-08-07

1992-12-01

Dang, Hoang C.

Wells

Combined

166250, 166332, E21B 3414, E21B 4312, E21B 4706

Patent

active

051672782

ABSTRACT:
Apparatus for testing an oil well comprises a tubular test string (10) fixed at the bottom of production tubing (11) and including a ball test valve (14) at its bottom end. The apparatus also includes a wireline assembly (50) suspended from a cable (51) so as to be capable of being lowered down the tubing. Beneath a measurement device (53) the wireline assembly includes a housing suitable for engaging in the test string (10), and an actuator rod suitable for engaging a moving sleeve (34) mounted in the tubular test string. By exerting traction on the cable (51) the sleeve (34) is raised, thereby opening a distributor valve (52) received in the thickness of the wall of the test string (10), and thereby putting the fluid situated beneath the test valve (14) into communication with the measurement device (53) via a passage (20).

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patent: 4790378 (1988-12-01), Montgomery et al.
patent: 4830107 (1989-05-01), Rumbaugh
patent: 4842064 (1989-06-01), Gazda

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