Edwards, Aberdeen

Jeffrey Edwards, Aberdeen GB

Patent application number	Description	Published
20090304454	Workover Riser Compensator System - A tensioning apparatus for applying a substantially constant tension to a workover riser (	12-10-2009
20100243267	CONTROL MECHANISM FOR SUBSURFACE SAFETY VALVE - A control mechanism for use with a safety valve adapted to seal a wellbore is described. The control mechanism comprises at least one valve actuator for engaging with the safety valve, the at least one actuator being moveable, in use, between a valve open position in which the safety valve is open and a valve closed position, in which the safety valve is closed. The control mechanism further comprises biasing apparatus adapted to bias the at least one valve actuator to the valve closed position, wherein, in use, the at least one valve actuator extends from the safety valve up to a wellbore wellhead. In one described embodiment, the safety valve is moved between the open and closed positions by movement of the at least one valve actuator with respect to the wellbore.	09-30-2010

Patent application number	Description	Published
20090038807	Lubricator System - A lubricator system for receiving the intervention tool string is described. The system includes a tubular body defining a tubular bore, and the tubular bore having a wall portion defining an aperture with a tool guide disposed in said aperture. A first sleeve surrounds the tubular body and is moveable between a first position where said aperture is covered by the first sleeve and a second position where said aperture is uncovered whereby access is provided to said tubular bore via said aperture. The system also includes a seal to allow the lubricator system to withstand operating pressures when the first sleeve is in the first position. Embodiments of the invention are described.	02-12-2009
20090045368	Axially Energisable Ball Valve - A ball valve (	02-19-2009
20090050332	Ball valve - A bearing mounted ball valve (	02-26-2009
20090050828	Blow out preventers - A blow out preventer (	02-26-2009
20100071913	WELL BORE CONTROL VALVE - The well bore control valve comprises a housing (	03-25-2010
20110127041	RISER WEAK LINK - A riser weak link (	06-02-2011

Patent applications by Jeffrey Charles Edwards, Aberdeen GB