Nitin Y Vaidya, Rashmi Bhavsar, Manuel Marya: Oilfield elements having controlled solubility and methods of use. Schlumberger Technology Corporation, Chadwick A Sullivan, Rodney Warfford, July 31, 2012: US08231947 (94 worldwide citation)

Oilfield elements are described, one embodiment comprising a combination of a normally insoluble metal with an element selected from a second metal, a semi-metallic material, and non-metallic materials; and one or more solubility-modified high strength and/or high-toughness polymeric materials selec ...

Jeff Beckel, Roger Keese: Method of transporting and storing an oilfield proppant. Schlumberger Technology Corporation, Rodney Warfford, Michael Dae, David Cate, November 23, 2010: US07837427 (62 worldwide citation)

A method of transporting and storing an oilfield proppant is provided that includes transporting the proppant to a storage facility by use of a dump truck; providing a load assembly at the storage facility which comprises a load hopper and a load conveyor; transferring the proppant from the dump tru ...

Dinesh R Patel: Downhole dissolvable plug. Schlumberger Technology Corporation, Chadwick Sullivan, Rodney Warfford, Matthias Abrell, October 2, 2012: US08276670 (61 worldwide citation)

A downhole plug can include a housing having an aperture disposed generally through the center of the housing. A stopper can be disposed in the aperture and adapted to block fluid flow therethrough. The stopper can have a composition of at least two different materials. One or more covers can be at ...

Manuel P Marya: Aged-hardenable aluminum alloy with environmental degradability, methods of use and making. Schlumberger Technology Corporation, Chadwick A Sullivan, Rodney Warfford, July 3, 2012: US08211248 (60 worldwide citation)

Disclosed herein is an aluminum alloy that is both age-hardenable and degradable in water-containing fluids. Some embodiments include aluminum alloy compositions with about 0.5 to 8.0 wt. % Ga (Gallium); about 0.5 to 8.0 wt. % Mg (Magnesium); less than about 2.5 wt. % In (Indium); and less than abou ...

John R Whitsitt, Jason K Jonas, Gary L Rytlewski, Dinesh R Patel: System and method for facilitating downhole operations. Schlumberger Technology Corporation, Robert Van Someren, David G Matthews, Rodney Warfford, November 15, 2011: US08056628 (60 worldwide citation)

A technique is provided to facilitate use of a service tool at a downhole location. The service tool has different operational configurations that can be selected and used without moving the service string.

John R Lovell, Michael G Gay, Sarmad Adnan, Kean Zemlak: System and methods using fiber optics in coiled tubing. Schlumberger Technology Corporation, Rodney Warfford, David Cate, Robin Nava, November 17, 2009: US07617873 (57 worldwide citation)

Apparatus having a fiber optic tether disposed in coiled tubing for communicating information between downhole tools and sensors and surface equipment and methods of operating such equipment. Wellbore operations performed using the fiber optic enabled coiled tubing apparatus includes transmitting co ...

Pierre Yves Corre, Gilles Carree: Expandable packer. Schlumberger Technology Corporation, Rodney Warfford, David Cate, Jaime Castano, April 29, 2008: US07363970 (57 worldwide citation)

An integral bodied composite packer is constructed entirely of a composite material. It can include an expandable middle portion with an elastomeric cover to engage an exterior surface of a well bore. The expandable portion can include continuous strands of polymeric fibers to reinforce the body and ...

Hubertus V Thomeer, Sarmad Adnan: Apparatus and method for downhole well equipment and process management, identification, and operation. Schlumberger Technology Corporation, Rodney Warfford, David Cate, Robin Nava, June 10, 2008: US07385523 (50 worldwide citation)

A method for operating a downhole tool. The method includes moving an instrument through a wellbore, and the instrument includes a first non-acoustic transponder that is adapted to detect identification codes. An identification code detected from at least one second non-acoustic transponder is compa ...

Manuel P Marya, Rashmi B Bhavsar, Gary L Rytlewski: Degradable compositions, apparatus comprising same, and method of use. Schlumberger Technology Corporation, Chadwick A Sullivan, Rodney Warfford, July 3, 2012: US08211247 (48 worldwide citation)

Compositions, apparatus incorporating a composition, and methods of use are described, one composition embodiment consisting essentially of one or more reactive metals in major proportion, and one or more alloying elements in minor proportion, with the provisos that the composition is high-strength, ...

Thomas D MacDougall, Nihat Ovutmen, Mark Fraker, Qing Yao, Donald Ross: Flow control device with a permeable membrane. Schlumberger Technology Corporation, Jeremy P Welch, Rodney Warfford, Trop Pruner & Hu P C, March 9, 2010: US07673678 (42 worldwide citation)

A system for use in a well includes plural flow control devices to control fluid flow in respective zones of the well, where each of at least some of the flow control devices includes a membrane having a permeable material to provide a flow restriction. The membranes of the at least some flow contro ...