Robert W Ference

8342094, Jan 1, 2013

Oct 22, 2009

12/603996

Manuel P. Marya - Sugar Land TX, US
Wenbo Yang - Sugar Land TX, US
Lawrence A. Behrmann - Houston TX, US
Steven W. Henderson - Katy TX, US
Robert Ference - Sugar Land TX, US

Schlumberger Technology Corporation - Sugar Land TX

F42B 1/02
E21B 43/117

102306, 102305, 102313, 89 115, 166297, 175 46

A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid.

20080053298, Mar 6, 2008

Nov 20, 2006

11/561641

Chenghua Han - Sugar Land TX, US
Bennie Gill - Fulshire TX, US
Mark C. Duhon - Sugar Land TX, US
Robert Ference - Sugar Land TX, US
Jerry D. Campbell - Katy TX, US
Ronald Lutz - Deer Park TX, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 43/116

89 115, 89 1151

Weight spacer apparatus is disclosed which comprises a carrier which is tubular in shape and a spacer tube which is also tubular in shape for insertion into the carrier. The weight spacer apparatus according to the present invention further comprises a plurality of weight bars which may be inserted into the spacer tube after the spacer tube is inserted into the carrier and which are also removable from the spacer tube. In one embodiment, a weight tray is inserted into the spacer tube for receiving the weight bars, and the weight tray may be fabricated from half-round tubing with a welded plate to cover the diametric opening. In another embodiment, a center plate is attached inside the spacer tube along the length of the spacer tube to divide the spacer tube into first and second compartments. The first compartment comprises a weight tray for receiving the plurality of weight bars, and the portion of the spacer tube opposite the first compartment has openings formed in it to receive shaped charges.

20090151949, Jun 18, 2009

Dec 17, 2007

11/957768

Manuel Marya - Pearland TX, US
Wenbo Yang - Sugar Land TX, US
Lawrence A. Behrmann - Houston TX, US
Steven W. Henderson - Katy TX, US
Robert Ference - Sugar Land TX, US
Brindesh Dhruva - Missouri City TX, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 29/02

166297, 166 551

An apparatus that is usable with a well includes a perforating system that is adapted to be fired downhole in the well. The perforating system includes a component, which includes an alloy that has a negative corrosion potential and is unable to passivate, or self-protect, while deployed in the well. The component is adapted to disintegrate to form substantially no debris in response to the firing of the perforating system.

20100147587, Jun 17, 2010

Dec 16, 2008

12/336490

Steven Henderson - Katy TX, US
Robert Ference - Sugar Land TX, US
Moises Smart - Houston TX, US

SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX

E21B 43/117
E21B 43/116

175 2

A wellbore tool includes a perforating charge adapted to create a tunnel in a subterranean formation upon activation; a propellant that provides a pressure cycle when activated; and a delay device operationally connected to the perforating charge and the propellant to activate the perforating charge and the propellant in a manner to influence a selected wellbore condition.

20130087061, Apr 11, 2013

Nov 29, 2012

13/688329

SCHLUMBERGER TECHNOLOGY CORPORATIO - Sugar Land TX, US
Wenbo Yang - Sugar Land TX, US
Lawrence A. Behrmann - Houston TX, US
Steven W. Henderson - Katy TX, US
Robert Ference - Sugar Land TX, US

SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX

F42B 1/02
E21B 43/116

102306, 89 115, 166297

A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid.

20140151046, Jun 5, 2014

Feb 6, 2014

14/174528

- Sugar Land TX, US
Wenbo Yang - Sugar Land TX, US
Lawrence A. Behrmann - Houston TX, US
Steven W. Henderson - Katy TX, US
Robert Ference - Sugar Land TX, US

SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX

F42B 3/22
E21B 29/02

166297, 89 115

A shaped charge includes a charge case; a liner; an explosive retained between the charge case and the liner; and a primer core disposed in a hole in the charge case and in contact with the explosive, wherein at least one of the case, the liner, the primer core, and the explosive comprising a material soluble in a selected fluid. A perforation system includes a perforation gun, comprising a gun housing that includes a safety valve or a firing valve, wherein the safety valve or the firing valve comprises a material soluble in a selected fluid.