David J Biddick

US Patent:

7779919, Aug 24, 2010

Filed:

Apr 23, 2008

Appl. No.:

12/108295

Inventors:

Paul G. Goughnour - Fresno TX, US
David James Biddick - Missouri City TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B 34/06
E21B 34/00
E21B 33/00

US Classification:

166373, 166323, 1663328

Abstract:

A system and method for use in a wellbore that includes a string comprising a housing. The housing comprises a valve including a valve seat having an inner channel and a flapper configured to pivot relative to the valve seat between a first position and a second position in which the inner channel is obstructed. A valve actuating device may be provided for selectively opening the valve and comprising a first hydraulic device. In addition, a retention device including a second hydraulic device may be provided and configured to selectively retain the flapper in the first position. In some cases, the first hydraulic device and the second hydraulic device may be driven by the same fluid source.

US Patent:

8002040, Aug 23, 2011

Filed:

Apr 23, 2008

Appl. No.:

12/108151

Inventors:

Dwayne May - Humble TX, US
David McCalvin - Missouri City TX, US
Paul Gordon Goughnour - Fresno TX, US
David James Biddick - Missouri City TX, US
Russell Alan Johnston - Alvin TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B 34/00
G05D 7/01

US Classification:

1663328, 1375133, 138 45, 251212

Abstract:

A technique enables control over flow in a wellbore with a flow control system. The flow control system combines a flow reduction mechanism with a flow control device, such as a valve. The flow reduction mechanism comprises a closure member which can be selectively moved between an unactuated and actuated position, allowing relatively greater flow through the flow control device in the unactuated position. The flow reduction mechanism actuates prior to or in conjunction with the flow control device to reduce flow and thus reduce the loading forces that would otherwise act against the flow control mechanism upon closure of the flow control device.

US Patent:

8151889, Apr 10, 2012

Filed:

Dec 8, 2008

Appl. No.:

12/329802

Inventors:

David James Biddick - Missouri City TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B 34/06

US Classification:

1663328

Abstract:

A technique enables control over flow in a wellbore with a flow control system. In some cases, the flow control system may comprise a flapper device, an isolation assembly, and an actuation assembly. The flapper device may be configured to rotate within an approximate angular range from 15 to 75 when shifting between an open and closed state. In some situations, the engaging member may contain a profiled end configured to increase the moment applied to the flapper device during opening and control the rate of closure of the flapper device. The limitation to the angular range of the flapper device may reduce the loading forces that would otherwise act against the flow control system upon closure of the flapper device.

US Patent:

20090242206, Oct 1, 2009

Filed:

Mar 27, 2008

Appl. No.:

12/056727

Inventors:

Paul Gordon Goughnour - Fresno TX, US
David James Biddick - Missouri City TX, US
Dwayne May - Humble TX, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX

International Classification:

E21B 34/06

US Classification:

1663328

Abstract:

A system for completing a well bore, comprises, a string having a housing, a valve having a valve seat positioned within the housing, the valve seat having an inner channel, a flapper pivotally coupled to the valve seat in which the flapper is configured to move from a first open position to a second closed position such that the inner channel is at least partially obstructed. An energy dampening device is coupled to the valve seat, such that the energy dampening device is configured to at least partially absorb an impact of the flapper on the valve seat.

US Patent:

20110083858, Apr 14, 2011

Filed:

Oct 8, 2010

Appl. No.:

12/900966

Inventors:

Russell A. Johnston - Alvin TX, US
Paul G. Goughnour - Farmers Branch TX, US
David J. Biddick - Houston TX, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - SUGAR LAND TX

International Classification:

E21B 34/06
E21B 34/00

US Classification:

166373, 1663324

Abstract:

According to one or more embodiments of the invention, a downhole tool includes one or more actuator apparatuses to facilitate actuation of the downhole tool. The actuation apparatus includes a piston that is dynamically coupled to a tool actuator by an actuator connector in a manner that the piston and the tool actuator necessarily move in unison in response to movement of the piston in a first direction and the piston and the tool actuator do not necessarily move in unison in response to movement of the piston in the second direction.

US Patent:

20110253392, Oct 20, 2011

Filed:

Jun 28, 2011

Appl. No.:

13/170366

Inventors:

Dwayne May - Humble TX, US
David McCalvin - Missouri City TX, US
Paul Gordon Goughnour - Fresno TX, US
David James Biddick - Missouri City TX, US
Russell Alan Johnston - Alvin TX, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - SUGAR LAND TX

International Classification:

E21B 34/10

US Classification:

166386, 1663323, 1663328, 1663321

Abstract:

A technique enables control over flow in a wellbore with a flow control system. The flow control system combines a flow reduction mechanism with a flow control device, such as a valve. The flow reduction mechanism comprises a closure member which can be selectively moved between an unactuated and actuated position, allowing relatively greater flow through the flow control device in the unactuated position. The flow reduction mechanism actuates prior to or in conjunction with the flow control device to reduce flow and thus reduce the loading forces that would otherwise act against the flow control mechanism upon closure of the flow control device.

US Patent:

20120031624, Feb 9, 2012

Filed:

Aug 6, 2010

Appl. No.:

12/852275

Inventors:

Paul G. Goughnour - Farmers Branch TX, US
Russell A. Johnston - Alvin TX, US
David J. Biddick - Houston TX, US

Assignee:

SCHLUMBERGER TECHNOLOGY CORPORATION - SUGAR LAND TX

International Classification:

E21B 34/06

US Classification:

166373, 1663328

Abstract:

According to one or more aspects of the present disclosure, an engaging member for operating a subsurface valve between an open position and a closed position includes a bottom portion comprising a terminal end adapted for contacting a valve closure member, the bottom portion having a first material characteristic and an upper portion having a second material characteristic that is quantitatively different from the first material characteristic. The material characteristics include, without limitation, strength, coefficient of friction, and the modulus of elasticity.

US Patent:

20120205114, Aug 16, 2012

Filed:

Nov 7, 2011

Appl. No.:

13/290348

Inventors:

David James Biddick - Missouri City TX, US
Paul G. Goughnour - Singapore, SG
Geoffrey Pinard - Missouri City TX, US

International Classification:

E21B 34/06
B23P 15/00
B23P 11/00
E21B 34/10

US Classification:

166319, 2989009, 2952501, 294262, 29890124

Abstract:

A technique facilitates prolonging the useful life of a subsurface valve without requiring replacement of the entire hydraulic chamber housing of the subsurface valve. A removable piston tube is provided and may be inserted into a valve housing of a subsurface valve. The removable piston tube is removably secured within a piston passage in the valve housing via a fastening mechanism. If necessary, the removable piston tube can be removed and replaced without requiring replacement of the overall housing.