David Johnkai Wang

6745843, Jun 8, 2004

Jan 22, 2002

10/054337

Craig D. Johnson - Montgomery TX
Matthew R. Hackworth - Pearland TX
David W. Wang - Houston TX

Schlumberger Technology Corporation - Sugar Land TX

E21B 4312

166386, 166205, 166233, 166234, 166296

A completion assembly for use in a lateral well bore has a base pipe with a plurality of holes through the sidewall of the base pipe. Flow through the holes is regulated to produce an influx difference between the ends of the base pipe. Flow can be regulated by variably spacing or sizing the holes. Flow can also be regulated by selectively inserting a rod between adjacent splines located on the base pipe to cover and block the flow through certain holes in the base pipe. Flow can also be regulated using a rotatable sleeve adjacent to the base pipe such that rotation of the sleeve brings the holes and openings in the pipe and sleeve, respectively, into and out of alignment. A filter can be used to filter sand and other particulates. An erosion inhibitor can be used to extend the useful life of the assembly.

7147054, Dec 12, 2006

Sep 3, 2003

10/654101

David Wei Wang - Manvel TX, US
Bruno Khan - Houston TX, US
Michael D. Langlais - Houston TX, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 43/04
E21B 43/08

166278, 166 51, 166227

A technique that is usable with a subterranean well includes communicating a slurry through a shunt flow path and operating a control device to isolate slurry from being communicated to an ancillary flow path. The system may include a shunt tube and a diverter. The shunt tube is adapted to communicate a slurry flow within the well to form a gravel pack. The diverter is located in a passageway of the shunt tube to divert at least part of the flow. A slurry may be communicated through the shunt flow path, and a control device may be operated to isolate the slurry from being communicated to the ancillary flow path.

7243715, Jul 17, 2007

Jul 25, 2003

10/626916

David Wei Wang - Manvel TX, US
Colin J. Price-Smith - Missouri City TX, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 43/08
E03B 3/18

166230, 166276, 166278, 210499

The present invention provides for a design and method of manufacture for a mesh-type screen to be used in subsurface well completions to prevent the production of sand.

7363974, Apr 29, 2008

Oct 18, 2006

11/550532

David Wei Wang - Manvel TX, US
Bruno Khan - Houston TX, US
Michael D. Langlais - Bartlesville OK, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 43/04

166278, 166 51, 166227

A technique that is usable with a subterranean well includes communicating a slurry through a shunt flow path and operating a control device to isolate slurry from being communicated to an ancillary flow path. The system may include a shunt tube and a diverter. The shunt tube is adapted to communicate a slurry flow within the well to form a gravel pack. The diverter is located in a passageway of the shunt tube to divert at least part of the flow. A slurry may be communicated through the shunt flow path, and a control device may be operated to isolate the slurry from being communicated to the ancillary flow path.

7798212, Sep 21, 2010

Apr 26, 2006

11/380303

Victor M. Bolze - Houston TX, US
David Wei Wang - Manvel TX, US
Rex C. Mennem - Stafford TX, US
David L. Verzwyvelt - West Columbia TX, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 17/02

1662426, 1662421

A technique is provided to facilitate connection of completion assemblies at a downhole location. A completion assembly comprises a control line conduit having a connector designed for coupling with a corresponding connector of a next adjacent completion assembly. A cover is selectively used to block entry of debris and other contaminants into the connector during deployment of the completion assembly downhole prior to engagement with the next adjacent completion of assembly.

8220533, Jul 17, 2012

Jul 17, 2009

12/505340

Colin Longfield - Sugar Land TX, US
David Wei Wang - Sugar Land TX, US
Gary L. Rytlewski - League City TX, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 34/08

166 666, 25112906

According to one or more aspects of the present disclosure, a piezoelectric pump may include a hydraulic fluid path between a low pressure source and a high pressure tool port; a fluid disposed in the hydraulic fluid path; a piston in communication with the fluid; and a piezoelectric material connected to the piston to pump the fluid through the high pressure tool port.

8469109, Jun 25, 2013

Jan 27, 2010

12/695110

David Wei Wang - Sugar Land TX, US
Gary L. Rytlewski - League City TX, US

Schlumberger Technology Corporation - Sugar Land TX

E21B 33/128

166386, 166318, 166194

An apparatus and method for plugging a wellbore completion. The apparatus includes a body and a variable diameter ring. The body includes a first portion having a first diameter, and a second portion having a second diameter that is smaller than the first diameter. The variable diameter ring is disposed around the body and slidable on the first and second portions. The ring is configured to engage a flow path reduction device when located on the first portion, and to move past the flow path reduction device when located on the second portion.

20110168406, Jul 14, 2011

Jan 11, 2011

13/004237

Michael Hui Du - Pearland TX, US
Gary Rytlewski - League City TX, US
David Wei Wang - Sugar Land TX, US

SCHLUMBERGER TECHNOLOGY CORPORATION - Sugar Land TX

E21B 19/16
E21B 19/18
E21B 19/00

166380, 166 7751, 166 855

A completions system utilizing a unique hydraulic coupling. The system includes an upper completion stinger configured for coupling to a lower completion tubular. Both the stinger and the tubular are outfitted with hydraulic lines therethrough. Thus, as the stinger is coupled to the tubular, hydraulic lines are also coupled. However, the termination of each line is sealingly covered by a slidable sleeve in advance of attaining the coupling between the stinger and tubular. Therefore, the lines are protected from contamination during potentially significant periods of well deployment that may occur in advance of completed coupling and system installation. Furthermore, the manner of hydraulic coupling between the stinger and tubular reduces the likelihood of damage to the hydraulic lines during the installation process.