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Hemant K J Ladva, Anthony Loiseau: Subterranean treatment fluid composition and method of treatment. SCHLUMBERGER TECHNOLOGY CORPORATION, Mathieu Vandermolen, Rachel E Greene, Tim Currington, March 29, 2016: US09296943 (1 worldwide citation)

A thickened composition comprising a polymer, a divalent ions source, water and cement is disclosed. Such composition enables fluid loss reduction and higher gel strength. This may be useful for treating a well for example as a fluid spacer or a scavenger; this may also be used a hydraulic fracturin ...


42
Evgeny Khvoshchev, Sarmad Adnan: Hydraulic system and method of monitoring. Schlumberger Technology Corporation, Rachel E Greene, Tim Curington, December 8, 2015: US09206667 (1 worldwide citation)

A technique involves monitoring a hydraulic system having a hydraulic pump coupled to a hydraulic motor which can be used to drive well related equipment. The system and methodology utilize sensors positioned to monitor parameters related to operation of the hydraulic pump and the hydraulic motor. A ...


43
Rod Shampine, Paul Dwyer, Ronnie Stover, Mike Lloyd, Jean Louis Pessin, Edward Leugemors, Larry D Welch, Joe Hubenschmidt, Philippe Gambier, William Troy Huey, Thomas Allan: Split stream oilfield pumping systems. Schlumberger Technology Corporation, Rachel E Greene, Tim Curington, October 7, 2014: US08851186 (1 worldwide citation)

A method of pumping an oilfield fluid from a well surface to a wellbore is provided that includes providing a clean stream; operating one or more clean pumps to pump the clean stream from the well surface to the wellbore; providing a dirty stream including a solid material disposed in a fluid carrie ...


44
Felix Chen, Christian Stoller, Olivier Philip, Luke T Perkins: Injector for betatron. Schlumberger Technology Corporation, Rachel E Greene, Brigid Laffey, October 11, 2011: US08035321 (1 worldwide citation)

An electron acceleration portion of a Betatron having a vacuum chamber with an interior wall spaced from an exterior wall with a main electron orbit located approximate to the exterior wall and the interior wall. An electron injector has an anode structured and arranged adjacent a wall selected from ...


45
William Marshall, Rod Shampine, Edward Leugemors, Hubertus V Thomeer: Pump body. Schlumberger Technology Corporation, Jeffrey R Anderson, Rachel E Greene, Tim Curington, September 1, 2015: US09121402 (1 worldwide citation)

A pump body is pre-compressed by expanding a displacement plug in a cavity to pre-compress a portion of a pump body comprising a piston bore, an inlet bore and an outlet bore spaced from said cavity, and connected in a pump assembly. A fluid pump assembly is made up of a plurality of pump bodies con ...


46
Hubertus V Thomeer, Ed Faught, Kay Stefan Capps, Cole Tepe, Rock Rodriguez: System and method for tracking wellsite equipment maintenance data. Schlumberger Technology Corporation, Rachel E Greene, Tim Curington, April 26, 2016: US09324049 (1 worldwide citation)

A maintenance system includes a plurality of wellsite equipment located at or nearby a wellsite, and a communication interface device for monitoring data that is representative of a health status of the equipment. The system further includes a database containing prior health status of the equipment ...


47
Kuo Chiang Chen, Partha Ganguly, Dominique Guillot, Agathe Robisson, Huilin Tu: Utilizing swellable materials to control fluid flow. Schlumberger Technology Corporation, Bridget Laffey, Rachel E Greene, Jakub Michna, October 8, 2013: US08550103 (1 worldwide citation)

Methods and related systems are described for controlling inflow of fluid into a production string. In aspects, the invention provides an inflow control device with a shut-off feature that is operated automatically utilizing swellable materials.


48
Rajesh Luharuka, Rod Shampine, Joe Hubenschmidt, Philippe Gambier, Brian Ochoa, Thomas Allan, Michael D Parris, Jean Louis Pessin, Edward Leugemors, Alejandro J Martinez: Oilfield material delivery mechanism. Schlumberger Technology Corporation, Rachel E Greene, Tim Curington, September 30, 2014: US08844615 (1 worldwide citation)

A mechanism for pressurized delivery of material into a well without exposure to a high pressure pump. The mechanism may include material delivery equipment that is coupled to the high pressure pump or other pressure inducing equipment through a material carrier that intersects a fluid line from the ...


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Jean Louis Pessin, Joe Hubenschmidt, Erik Rhein Knudsen, Toshimichi Wago, Nathan St Michel: Sensor system for a positive displacement pump. Schlumberger Technology Corporation, Jeffrey R Anderson, Rachel E Greene, Tim Curington, March 17, 2015: US08979505 (1 worldwide citation)

A positive displacement pump is provided that includes a pump housing having a pump chamber; a plunger mounted in the pump housing for reciprocating motion in the pump chamber; a suction valve positioned to allow a fluid to enter the pump chamber upon movement of the plunger in a first direction; a ...


50
Chaur Jian Hsu: Measurement of sound speed of downhole fluid by helmholtz resonator. Schlumberger Technology Corporation, Jakub Michna, Rachel E Greene, Bridget Laffey, December 17, 2013: US08612154 (1 worldwide citation)

A downhole logging tool is equipped with a modified Helmholtz resonator for facilitating acoustic formation evaluation and reservoir characterization. The resonator permits calculation of sound speed and viscosity of the fluid in the resonator cavity. The presence of gas bubbles in the fluid may als ...