Weatherford Technology Holdings, LLC

Petrowell Limited

Alan Craigon

Philip Cg Egleton

Stephen Reid

Philip C G Egleton

Andrew John Elrick

Santiago Galvez Porta

A flow restrictor for restricting flow in an annulus, the flow restrictor comprising a body and a restrictor assembly mounted on the body, wherein the restrictor assembly is actuatable between a run-in configuration and a set configuration in which at least a portion of the restrictor assembly is radially splayed to thereby substantially restrict flow in the annulus, and wherein the flow restrictor is actuatable by fluid flow over the restrictor assembly above a threshold flow rate to actuate the restrictor assembly from the run-in configuration to the set configuration.

Flow restrictor

An activation apparatus () for activating a downhole tool comprising a top sub (), a bottom sub (), an outer sleeve () having a port () and an inner sleeve () having a port (). The apparatus () is configurable between a run-in configuration in which the ports () are not aligned and an activated configuration in which the ports () are aligned and permit lateral passage of fluid through the apparatus (), the activation apparatus () being configured such that application of at least two forces to the activation apparatus () transitions the activation apparatus () from the run-in configuration to the activated configuration.

Downhole apparatus and method

Growing community of inventors

Angus, United Kingdom

Alan Craigon