21
Kevin England: Hydraulic fracturing method. Schlumberger Technology Corporation, Thomas O Mitchell, Robin Nava, Brigitte L Echols, August 17, 2004: US06776235 (173 worldwide citation)

This invention relates generally to the art of hydraulic fracturing in subterranean formations and more particularly to a method and means for optimizing fracture conductivity. According to the present invention, the well productivity is increased by sequentially injecting into the wellbore alternat ...


22
Jerald J Hinkel, Kevin W England: Fluids and techniques for maximizing fracture fluid clean-up. Schlumberger Technology Corporation, Robin C Nava, Maryam Bani Jamali, Thomas Mitchell, February 27, 2001: US06192985 (172 worldwide citation)

The present Invention relates to method to stimulate the production of hydrocarbons from a subterranean formation. In particular, the present Invention discloses and claims methods to enhance the removal of fracturing fluid from a fracture deliberately created in the formation, thereby increasing ef ...


23
Christopher L Farmer: Simulation gridding method and apparatus including a structured areal gridder adapted for use by a reservoir simulator. Schlumberger Technology Corporation, John H Bouchard, August 22, 2000: US06106561 (172 worldwide citation)

A Flogrid Simulation Gridding Program includes a Flogrid structured gridder. The structured gridder includes a structured areal gridder and a block gridder. The structured areal gridder will build an areal grid on an uppermost horizon of an earth formation by performing the following steps: (1) buil ...


24
Haoshi Song, Jack F Lands Jr, Wallace E Voreck: Sealing well casings. Schlumberger Technology Corporation, Gordon G Waggett, John J Ryberg, John Bouchard, November 10, 1998: US05833001 (167 worldwide citation)

An apparatus and method for sealing an inner wall of a portion of a casing positioned in a well employs an inflatable sleeve having an outer surface and a conformable composite sleeve of curable composition extending around the outer surface of the inflatable sleeve. The inflatable sleeve is inflate ...


25
Thomas O Mitchell, Roger J Card, Arthur Gomtsyan: Cleanup additive. Schlumberger Technology Corporation, Robin C Nava, Thomas Mitchell, John J Ryberg, June 5, 2001: US06242390 (162 worldwide citation)

According to the present invention, a composition and method for hydraulically fracturing a subterranean formation is provided. The composition comprises an aqueous mixture of a hydrated polysaccharide, preferably a galactomannan gum, the hydrated polysaccharide having a plurality of bonding sites; ...


26
Pierre Maroy, Jean Francois Baret: Fluids for oilfield use having high-solids content. Dowell a division of Schlumberger Technology Corporation, John E Vick Jr, May 21, 1996: US05518996 (160 worldwide citation)

The particulate phase of fluids according to the present invention comprises particles which have specifically adapted size ranges or granulometries. All the essential properties of fluids and their cost are very clearly improved. The technique may be applied to all well operations in oil wells or t ...


27
Jerald J Hinkel, Kevin W England: Enhancing fluid removal from fractures deliberately introduced into the subsurface. Schlumberger Technology Corporation, Douglas Y Barbo, Robin C Nava, May 30, 2000: US06069118 (156 worldwide citation)

The present Invention relates to hydrocarbon well stimulation, and more particularly to methods and compositions to remove (or more generally to transfer) fluid introduced into a subsurface fracture, in which the methods involve creating then exploiting chemical potential gradients at the fracture f ...


28
Herve Ohmer: Apparatus and method for establishing branch wells from a parent well. Schlumberger Technology Corporation, Gary L Bush, Wayne I Kanak, May 2, 2000: US06056059 (154 worldwide citation)

A method and apparatus for creating multiple branch wells from a parent well is disclosed. According to a first embodiment of the invention a multiple branching sub is provided for placement at a branching node of a well. Such sub includes a branching chamber and a plurality of branching outlet memb ...


29
Simon L Farrant, Jerry D Campbell, James S Almaguer, Kuo Chiang Chen: Downhole anchoring tools conveyed by non-rigid carriers. Schlumberger Technology Corporation, Trop Pruner & Hu P C, November 13, 2001: US06315043 (149 worldwide citation)

An apparatus and method provides an anchor device for use in a wellbore that comprises an actuator assembly responsive to an actuating signal, an operator coupled to the actuator assembly, and an engagement member moveable to a set position by the operator when actuated by the actuator assembly to s ...


30
Bruce W Boyle, Raghu Madhavan, Jacques Jundt: Wired pipe joint with current-loop inductive couplers. Schlumberger Technology Corporation, Jennie, Brigitte L Jeffery, John J Ryberg, November 4, 2003: US06641434 (149 worldwide citation)

A robust, low-loss wired pipe joint is provided for service as a component of a wired pipe string for transmitting measurement data to a surface station from locations in a borehole in oil well drilling and oil well operations. Conductive layers reduce signal energy losses over the length of the dri ...