Weatherford Technology Holdings, LLC

Petrowell Limited

Ian Duncan

Daniel George Purkis

Matthew Manning

Damien Gerard Patton

Santiago Galvez Porta

Oliver Webster

Steve Corbett

A downhole actuator () comprises a tubular housing () which includes an indexing profile () on an inner surface thereof, and an indexing sleeve () mounted within the housing (). The indexing sleeve () comprises an engaging arrangement including first and second axially spaced engagement members () which cooperate with the indexing profile () of the housing () to be sequentially engaged by an actuation object () passing through a central bore () of the indexing sleeve () to drive the indexing sleeve () one discrete step of movement through the housing () towards an actuation site.

Downhole apparatus and method

A downhole tool () comprises a tool housing () defining a central bore () and including a fluid port (), and a valve member () mounted within the housing () and being moveable from a closed position in which the fluid port () is blocked to an open position in which the fluid port () is opened. The tool () further comprises a catching arrangement () mounted within the housing () and comprising one or more radially moveable seat members (), and being configurable from a free configuration in which the seat members () permit an object () to pass through the tool (), to a catching configuration in which the seat members () catch an object () passing through the tool ().

Growing community of inventors

Aberdeen, United Kingdom

Ian Duncan