Automatic blanking completion tool

Details Automatic blanking completion tool Automatic blanking completion tool

1998-07-17

1999-11-02

Bagnell, David

Wells

Valves, closures or changeable restrictors

Fluid operated

1662423, E21B 4312

Patent

active

059752092

ABSTRACT:
A differential pressure operated blanking tool (1) for use in a completion automatically permits logging operations to be carried out in the absence of fluid flow in the tool (1). The tool (1) includes a pair of limbs (3,5) which communicate via a diverter (7) with a production tubing connection (4). In the absence of fluid flow within the tool (1), the diverter remains open to allow access for logging operations but is movable to a closed position occluding one of the limbs (3) as a result of a pressure differential established by fluid movement in the tool (1).

REFERENCES:
patent: 4378847 (1983-04-01), Patel et al.
patent: 5323859 (1994-06-01), Smith et al.

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