Qinetiq Limited

Adrian Robert Bowles

Jonathan Geoffrey Gore

Michael William Hopkins

Richard Carson McBride

Mark Gregory Maylin

Timothy Rupert Charles Jarman

Abdul-Salam Kaddour

Stuart John Eaton

Jeremy Leonard Clive Ludlow

Ahmed Yehia Amin Abdel-Rahman

Jeremy Leonard Ludlow

Richard Carson Mcbride

David Gordon Madgwick

Ahmed Yehia Abdel Rahman

Ahmed Yehia Amin Abdel Rahaman

Apparatus for the wireless transmission of data, and preferably also of power, across a space between a length of production tubing and a surrounding casing in a petrochemical well, includes a pair of inductively-coupled coils, a first of which is located on the exterior of the production tubing generally coaxially therewith, and the second of which is located on the interior of the casing generally coaxially therewith. This may be used in particular as part of a system for transmitting power and data to/from a sensor monitoring the pressure and/or other environmental conditions within the 'B' annulus B of a sub-sea well.

Down-hole wireless communication system

A high pressure pump for use in the injection of liquid chemicals into subsea oil or gas wells, and intended to be positioned in the subsea environment adjacent to the wellhead, comprises a piezoelectric actuator () for reciprocating a plunger () which acts to compress and expand the effective volume of a pumping chamber () having a valved inlet () connected to a source of the liquid and a valved outlet () to lead the liquid to the well. The device has a minimum of moving parts and in particular avoids the need for any rotating parts and attendant high performance bearings and seals.

Subsea chemical injection system and pumps therefor

Growing community of inventors

Farnborough, United Kingdom

Adrian Robert Bowles