Apparatus for measuring bottom hole well conditions

Details Apparatus for measuring bottom hole well conditions Apparatus for measuring bottom hole well conditions

1981-09-08

1983-11-15

Purser, Ernest R.

Wells

Expansible anchor or casing

166318, 166332, E21B 2300, E21B 3406

Patent

active

044150288

ABSTRACT:
An apparatus for measuring bottom hole conditions such as pressure in the tubing of a well including a locking and sealing sub to lock into and seal against the interior of the tubing, an isolation valve connected in the sub and a measuring instrument connected to the valve for measuring conditions in the tubing. The isolation valve has a bore with an annular seat in the bore and side ports leading into the bore below the seat. A valve element is longitudinally movable in the valve between an open position below the ports and a closed position against the seat and includes an elongate mandrel having a backup shoulder. A latch mechanism initially holds the valve in the open position and includes a collet member initially engaging the mandrel and holding the valve element in the open position and the collet is held in a latched position by a spring loaded backup shoulder. Spring means yieldably urge the collet out of engagement with the mandrel and close the valve when the backup shoulder is moved out of engagement with a collet. The valve flow passageway is as large as the bore through the locking sub. A closing prong which actuates the valve to the closed position has a cross-sectional area substantially smaller than the valve passageway.

REFERENCES:
patent: 4159643 (1979-07-01), Watkins
patent: 4252195 (1981-02-01), Fredd

Affiliated with

Also associated with

Rating

Apparatus for measuring bottom hole well conditions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for measuring bottom hole well conditions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for measuring bottom hole well conditions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-155158