Jorge Lopez de Cardenas, Gary L Rytlewski, Matthew R Hackworth: System for completing multiple well intervals. Schlumberger Technology Corporation, Fred G Pruner, Daryl R Wright, Bryan P Galloway, June 17, 2008: US07387165 (231 worldwide citation)

A system for completing a well with multiple zones of production includes a casing having a plurality of valves that are integrated therein for isolating each well zone. Communication is established between each underlying formation and the interior of the casing, and a treatment fluid is delivered ...

Thomas D MacDougall: System and method for gas shut off in a subterranean well. Schlumberger Technology Corporation, Van Someren PC, James L Kurka, Daryl R Wright, May 26, 2009: US07537056 (60 worldwide citation)

A gas inflow control system is used in a well. A downhole tool is combined with an automatic valve that is automatically actuatable to a flow position in the presence of a well liquid flowing into the downhole tool. In the presence of gas flow into the valve, the valve automatically transitions towa ...

Ives Loretz, Donald Ross: System and method for protecting downhole components during deployment and wellbore conditioning. Schlumberger Technology Corporation, Rodney V Warfford, Daryl R Wright, Robert Van Someren PC, May 11, 2010: US07712541 (51 worldwide citation)

A technique is provided to temporarily protect well system components during transport, movement downhole and/or initial downhole operations. A sacrificial material is formed as a protective sacrificial element disposed proximate susceptible well system components. The protective sacrificial element ...

Erwann Lemenager, Herve Ohmer, Klaus B Huber, Randolph J Sheffield: Wireless communications associated with a wellbore. Schlumberger Technology Corporation, Daryl R Wright, Trop Pruner & Hu P C, James L Kurka, January 13, 2009: US07477160 (46 worldwide citation)

A subsea communication system includes addressable nodes in a wellbore and addressable nodes on a floor, where the nodes in the wellbore and on the floor are able to communicate wirelessly with each other, such as through a formation.

Songming Huang, Franck Monmont, Robert Tennent, Matthew Hackworth, Craig Johnson: Borehold telemetry system. Schlumberger Technology Corporation, Bryan P Galloway, Daryl R Wright, Trop Pruner & Hu P C, July 8, 2008: US07397388 (42 worldwide citation)

A system that is usable with a subterranean well includes an assembly and a telemetry tool. The system includes an assembly that performs a downhole measurement. The system also includes a downhole telemetry tool to modulate a carrier stimulus that is communicated through a downhole fluid to communi ...

Dinesh R Patel, Donald W Ross, Anthony Veneruso, Fabien Cens, John Lovell, Jean Philippe Beaulieu, Christian Chouzenoux: Completion system having a sand control assembly, an inductive coupler, and a sensor proximate to the sand control assembly. Schlumberger Technology Corporation, Daryl R Wright, Brandon S Clark, Rodney V Warfford, June 15, 2010: US07735555 (35 worldwide citation)

A completion system for use in a well includes a first completion section and a second section. The first completion section has a sand control assembly to prevent passage of particulates, a first inductive coupler portion, and a sensor positioned proximate to the sand control assembly that is elect ...

Dylan Davies, Arthur H Hartog, Kamal Kader: Distributed vibration sensing system using multimode fiber. Schlumberger Technology Corporation, James L Kurka, Daryl R Wright, Trop Pruner & Hu P C, February 23, 2010: US07668411 (35 worldwide citation)

An optical time domain reflectometry (OTDR) system is configured to detect Rayleigh backscatter reflected from a multimode sensing optical fiber. The system includes a single spatial mode filtering system to select a single speckle of the Rayleigh backscatter produced in response to an optical pulse ...

John R Meijer, Raghuram Kamath, Jason K Jonas, Robert S Neves, David L Verzwyvelt: Downhole connection system. Schlumberger Technology Corporation, Bryan P Galloway, Daryl R Wright, Robert Van Someren, July 15, 2008: US07398822 (33 worldwide citation)

A technique is provided in which a contraction joint is used to facilitate connection of well equipment assemblies at a downhole location. The contraction joint accommodates changes in system length during engagement and use or the well equipment assemblies in a wellbore. Additionally, the contracti ...

Ives D Loretz: Providing a rechargeable hydraulic accumulator in a wellbore. Schlumberger Technology Corporation, Rodney Warfford, Daryl R Wright, Trop Pruner & Hu PC, February 23, 2010: US07665527 (23 worldwide citation)

A rechargeable hydraulic accumulator is provided in a wellbore, and a component is actuated by discharging the hydraulic accumulator. The hydraulic accumulator is recharged by increasing pressure in a fluid conduit.

Arthur H Hartog: Interferometric method and apparatus for measuring physical parameters. Sensor Highway, Trop Pruner & Hu P C, Daryl R Wright, James L Kurka, June 16, 2009: US07548319 (20 worldwide citation)

A method of measuring a selected physical parameter at a location within a region of interest comprises the steps of: launching optical pulses at a plurality of preselected interrogation wavelengths into an optical fiber (1) deployed along the region of interest, reflectors (20, 21, 2n) being arraye ...