Robert Hanna Green
Engineering at Winding Crk Way, Houston, TX

6155344, Dec 5, 2000

Sep 8, 1998

9/149420

William Desmond Myers - Houston TX
Robert R. Green - Houston TX

Baker Hughes Incorporated - Houston TX

F21B 17046

166 551

A connector is presented for tubing conveyed perforating guns which facilitates connection or disconnection between guns without the need for rotation. A latching mechanism is disclosed which latches by setting down weight and unlatches by an actuating ram camming the latch out of a window. The connectors are configured so that they are sealed internally and have an external profile for interengagement with a seal ram for support and sealing around the outer periphery. Accordingly, a live well can be isolated using a seal ram around a fired gun because the internal passages through the gun are sealed off by virtue of seals around a hammer piston. The connectors are configured so that an upper gun creates the pressure required to set off the gun below. The connectors are also configured such that when a lower gun is supported by a seal ram, an emergency shear zone is presented opposite a shear ram to ensure that if an emergency well shutdown is required that the shear ram does not have to cut through a section of the gun which contains explosives.

2005002, Feb 3, 2005

May 25, 2004

10/853556

Robert Green - Houston TX, US
John Harrell - Spring TX, US

E21B047/00, G10H001/12

166250170

A method and apparatus for acoustically actuating wellbore tools using two-way acoustic communication is disclosed.

5680905, Oct 28, 1997

Jan 4, 1995

8/368693

Robert R. Green - Houston TX
William D. Myers - Houston TX

Baker Hughes Incorporated - Houston TX

E21B 4311

175 454

An apparatus for actuating a firing head is disclosed. The apparatus contains a firing head that is operatively connected to a detonating cord of a perforating gun containing a series of shaped charges. The perforating gun will be connected to a work string in a wellbore filled with a fluid. The apparatus generally comprises a housing member having an inner portion and an outer portion; a blocking member for blocking passage of a hydrostatic pressure; a mechanical activation piston, adapted to be received within the housing member, for mechanically opening the blocking member. The apparatus further contains a hydraulic activation piston, adapted to be received within the housing member, for activating a percussion initiator firing member; and a transfer charge booster that transfers the detonation to a detonation cord.

4979568, Dec 25, 1990

Jan 16, 1990

7/465509

Harold A. Spencer - Missouri City TX
Robert R. Green - Houston TX

Baker Hughes Incorporated

E21B 3410, E21B 4908

166374

A method and apparatus for operating a ball valve in a test tool string for a subterranean well, including a tubular actuator for the ball valve which is movable from a closing position of the ball valve to an opening position and beyond the opening position to a lock setting position, preventing the return of the tubular actuator to the ball valve closing position until the cycle of additional movements of the tubular actuator is accomplished. A metal-to-metal seal is provided for the ball valve and a larger than normal biasing force derived from a spring and a trapped pressurized gas is applied to the tubular actuator in its valve position to insure the integrity of the metal-to-metal seal.