1
Rajesh Luharuka, Chi Fu Wu, Peter Hesketh: Apparatus for fluid storage and delivery at a substantially constant pressure. Georgia Tech Research Corporation, Thomas Kayden Horstemeyer & Risley, January 27, 2009: US07481337 (48 worldwide citation)

Microfluidic pumps, methods of fabrication thereof, and methods of use thereof, as well as method of pumping a fluid, are disclosed.


2
Edward Leugemors, Rajesh Luharuka, Hubertus V Thomeer: Suction stabilizer for pump assembly. Schlumberger Technology Corporation, Jeffrey R Anderson, Rachel E Greene, Tim Curington, December 2, 2014: US08899940 (13 worldwide citation)

A fluid flow stabilizing method and a pump having a stabilized fluid flow passage where a process fluid contains suspended solid particles and is subject to pressure oscillations. The method comprises positioning an expandable membrane along the lower transverse surface, inflating the membrane with ...


3
Rajesh Luharuka, Galina Gennadievna Petukhova, Kim A Hodgson, Edward Leugemors, Sergey Makarychev Mikhailov, Artem Valeryevich Kabannik, Bobby Link, Dennis Johnson, Olga Vladimirovna Nevvonen, Megrose Quiterio: System and method for mitigating dust migration at a wellsite. SCHLUMBERGER TECHNOLOGY CORPORATION, Michael L Flynn, April 18, 2017: US09624036 (5 worldwide citation)

A system and method for mitigating dust migration at a wellsite is described. An oilfield material reservoir is provided for receiving oilfield material, the oilfield material reservoir having an enclosure. A dust collector is provided for collecting dust generated at the oilfield material reservoir ...


4
Rajesh Luharuka, Rod Shampine, Jean Louis Pessin, Philippe Gambier, Joe Hubenschmidt, John Lassek: Method for oilfield material delivery. Schlumberger Technology Corporation, Myron K Stout, Michael M Dae, Michael Flynn, March 6, 2012: US08127844 (4 worldwide citation)

In an embodiment, a method of operating at least one pressure vessel to inject a particulate slurry into a high-pressure line, comprises a first operating cycle comprising: isolating the at least one pressure vessel from the high-pressure line; introducing particulate solids into the pressure vessel ...


5
Rajesh Luharuka, Rod Shampine, Jean Louis Pessin, Philippe Gambier, Joe Hubenschmidt: Apparatus and method for oilfield material delivery. Schlumberger Technology Corporation, Jeffrey Anderson, Rachel Greene, Tim Curington, September 15, 2015: US09133701 (2 worldwide citation)

An embodiment of a method of operating at least two pressure vessels to inject a particulate slurry into a high-pressure line, comprises a first operating cycle comprising: isolating a pressure vessel from the high-pressure line, introducing, under low-pressure conditions, particulate solids into th ...


6
Edward Leugemors, Rajesh Luharuka, Toshimichi Wago, Philippe Gambier, Jean Louis Pessin, Aparna Raman: Methods of use for a positive displacement pump having an externally assisted valve. Schlumberger Technology Corporation, Myron Stout, Daryl R Wright, Tim Curington, August 13, 2013: US08506262 (2 worldwide citation)

A method for operating at least one pump in a pump assembly comprises providing a pump assembly comprising a fluid end and a power end, the fluid end in communication with a fluid source and at least one downstream destination and comprising a pump housing for a pressurizable chamber, at least one v ...


7
Edward Leugemors, Rajesh Luharuka: System, apparatus, and method for rapid pump displacement configuration. Schlumberger Technology Corporation, Myron K Stout, Daryl R Wright, November 12, 2013: US08579599 (2 worldwide citation)

A system for changing a pump displacement configuration includes a blender that provides low-pressure fluid to a pump. The pump has a power end and fluid end, where the fluid end includes a number of plungers. The system includes an actuator that couples the power end with a selectable subset of the ...


8
Philippe Gambier, Rod Shampine, Joe Hubenschmidt, Rajesh Luharuka, Hubertus V Thomeer: Pump assembly. Schlumberger Technology Corporation, Rachel E Greene, Tim Curington, October 28, 2014: US08874383 (2 worldwide citation)

A pump assembly and maintenance system and method. An inventory of pump components has an identifier to track the pump component and a sensor to gather operating data associated with the pump component. A population of pumps is assembled from the pump components. The operating data are correlated wi ...


9
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 ...


10
Hau Pham, Rajesh Luharuka: Hydration apparatus and method. SCHLUMBERGER TECHNOLOGY CORPORATION, Michael L Flynn, Tim Curington, October 4, 2016: US09457335 (1 worldwide citation)

Vessels including an enclosure having an outer perimeter and an interior space, a channel disposed in the interior space, a first port disposed on a surface of the first enclosure at or proximate to a first end of the channel, and a second port disposed on a surface of the first enclosure at or prox ...