1
George Lange, Vibhas J Pandey, Samih Alsyed, Timothy Lesko: Method of preventing or reducing fluid loss in subterranean formations. Schlumberger Technology Corporation, David Cate, Rachel E Greene, Robin Naua, August 31, 2010: US07786051 (15 worldwide citation)

A method of treating a formation penetrated by a wellbore to reduce fluid loss to the formation is carried out by providing a quantity of water-degradable particles formed from a solid polymeric acid precursor having a number average molecular weight (Mn) of greater than 4000. A slurry of the partic ...


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
Agathe Robisson, Francois Auzerais, Sudeep Maheshwari, Kuo Chiang Chen, Partha Ganguly, Nitin Vaidya: Oilfield apparatus and method comprising swellable elastomers. Schlumberger Technology Corporation, Bridget Laffey, Rachel E Greene, Jakub Michna, July 23, 2013: US08490707 (6 worldwide citation)

The subject disclosure relates to apparatus and methods that are particularly suited for creating a seal in a borehole annulus. More particularly, the subject disclosure relates to a seal with enhanced sealing capability. In one embodiment the subject disclosure relates to a reinforced and permanent ...


4
Li Jiang, Oliver C Mullins, Gale H Gustavson, Christopher Harrison, Bhavani Raghuraman, Ronald E G Van Hal, Jimmy Lawrence, Kosta Ladavac, Albert Ballard Andrews, Timothy Gareth John Jones, Rogerio Tadeu Ramos: Downhole spectroscopic hydrogen sulfide detection. Schlumberger Technology Corporation, Rachel E Greene, Brigid Laffey, November 15, 2011: US08058071 (6 worldwide citation)

Methods and related apparatuses and mixtures are described for detecting hydrogen sulfide in a formation fluid downhole. A detection mixture is combined with the formation fluid downhole. The detection mixture includes metal ions for reacting with hydrogen sulfide forming a metal sulfide, and charge ...


5
Belgin Baser, Curtis L Boney, Eric Clum, Jorge E Lopez de Cardenas: Multilayered ball sealer and method of use thereof. Schlumberger Technology Corporation, Rachel E Greene, Tim Curington, May 6, 2014: US08714250 (6 worldwide citation)

A multilayered ball sealer having a deformable layer. The multilayered ball sealer has an outer or intermediate layer that is deformable under pressure. In the former, the deformable layer may be water-soluble or hydrolysable. In the latter, the outer layer is a sheath that contains the deformable l ...


6
Jahir A Pabon, Giorgia Bettin: Energy harvesting from flow-induced vibrations. Schlumberger Technology Corporation, Bridget Laffey, Rachel E Greene, Jakub M Michna, December 10, 2013: US08604634 (5 worldwide citation)

Electrical energy is produced at a remote site by converting kinetic energy from fluid flow to electrical energy using a downhole harvesting apparatus. The downhole harvesting apparatus includes a vibrating sleeve member that vibrates in response to fluid flow through a tubular housing structure. Th ...


7
William B Underhill, Scott W Leaney, David Gerez, Alfredo Fayard: Technique and system for performing a cross well survey. Schlumberger Technology Corporation, Myron K Stout, Rachel E Greene, David Cate, January 31, 2012: US08107317 (5 worldwide citation)

A technique includes providing a source in a first well and a seismic receiver in a second well to detect a seismic event that is caused by the source. The technique includes referencing clocks in the source and receiver to a common reference time frame and determining a time in the reference time f ...


8
Andrew E Pomerantz, Jerome Breviere: Fast mud gas logging using tandem mass spectroscopy. Schlumberger Technology Corporation, Bridget Laffey, Rachel E Greene, Jakub Michna, September 17, 2013: US08536524 (5 worldwide citation)

Systems and methods for high speed mud gas logging are described. A general workflow of mud gas logging uses tandem mass spectroscopy. The workflow involves first separating the volatile components of the hydrocarbons (typically C8 and below) from the drilling fluid using a fluid extractor (or degas ...


9
Rod Shampine, Edward Leugemors, Timothy M Lesko: System and method for delivering treatment fluid. SCHLUMBERGER TECHNOLOGY CORPORATION, Michael L Flynn, Rachel E Greene, Robin Nava, January 9, 2018: US09863228 (4 worldwide citation)

A system includes a regional blending facility having a number of bulk receiving facilities, where each bulk facility receives and stores a particle type having a distinct size modality, a bulk moving device that transfers particles between the bulk receiving facilities and of a blending/continuousl ...


10
Timothy Lesko, J Ernest Brown, Dean M Willberg, Ivan V Kosarev, Anatoly Medvedev, Jonathan Abbott, Alexander Burukhin: Heterogeneous proppant placement in a fracture with removable channelant fill. Schlumberger Technology Corporation, Rachel E Greene, Tim Curington, June 24, 2014: US08757259 (4 worldwide citation)

A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) wherein the proppant comprises from 1 to 100 percent in weight of stiff, low-elasticity and low-deformability elongated particles (34) and ...