Weatherford Technology Holdings, LLC

Petrowell Limited

Oliver Webster

Matthew Manning

Damien Gerard Patton

Daniel George Purkis

Santiago Galvez Porta

Steve Corbett

Ian Duncan

Ian Jaffrey

A method for manufacturing a metal structure () for use in a downhole assembly comprises plastically deforming at least a portion of the metal structure (); and heating at least the deformed portion of the metal structure to a temperature below its critical and/or transformation temperature. An assembly for performing the method comprises a production fixture () configured to receive the metal structure (), wherein the production fixture is adapted to undergo heating to a temperature below and/or up to the critical and/or transformation temperature of the metal structure. By heating at least the deformed portion of the metal structure to a temperature below its critical and/or transformation temperature, the metal structure may undergo stress relief, which may help prevent undesirable movement of deformed portion, e.g. collet fingers of a catching apparatus, against the direction of deformation after impact(s) and/or shock(s) from moving objects, in use.

Heat treat production fixture

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 ().

A downhole shifting tool () for shifting a downhole component () comprises a body with a positioning arrangement () provided on the body for engaging or interacting with a downhole component to provide alignment of the shifting tool with said component. The tool further includes a connecting member () provided on the body and being moveable to selectively engage a connection profile of the downhole component.

Growing community of inventors

Aberdeenshire, United Kingdom

Oliver Webster