1
Timothy Lesko, J Ernest Brown, Dean M Willberg, Ivan Kosarev, Anatoly Medvedev: Heterogeneous proppant placement in a fracture with removable channelant fill. Schlumberger Technology Corporation, Rachel Greene, Thomas O Mitchell, Dave Cate, September 1, 2009: US07581590 (64 worldwide citation)

A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the ...


2
Timothy Lesko, J Ernest Brown, Dean Willberg, Ivan Kosarev, Anatoly Medvedev: Heterogeneous proppant placement in a fracture with removable channelant fill. Schlumberger Technology Corporation, David Cate, Rachel Greene, Jeff Griffin, November 29, 2011: US08066068 (38 worldwide citation)

A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the ...


3
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 ...


4
Timothy Lesko, J Ernest Brown, Dean M Willberg, Ivan Kosarev, Anatoly Medvedev: Heterogeneous proppant placement in a fracture with removable channelant fill. Schlumberger Technology Corporation, Daryl Wright, Robin Nava, July 23, 2013: US08490700 (8 worldwide citation)

A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant and a channelant through a wellbore into the fracture, heterogeneously placing the proppant in the fracture in a plurality of proppant clusters ...


5
Timothy Lesko, J Ernest Brown, Dean M Willberg, Ivan V Kosarev, Anatoly Medvedev: Heterogeneous proppant placement in a fracture with removable channelant fill. Schlumberger Technology Corporation, Daryl R Wright, Tim Curington, Robin Nava, January 28, 2014: US08636065 (8 worldwide citation)

A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the ...


6
Paul Howard, Philip F Sullivan, Timothy Lesko: Differential filters for stopping water during oil production. Schlumberger Technology Corporation, David Cate, Robin Nava, Charlotte Rutherford, December 29, 2009: US07637320 (6 worldwide citation)

A differential filter includes a swellable polymer that swells after contacting water such that permeability of the differential filter is reduced. A method of controlling water production in a well includes deploying a differential filter downhole; and performing a downhole operation, wherein the d ...


7
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 ...


8
Rod Shampine, Edward Leugemors, Timothy Lesko: System and method for delivering treatment fluid. SCHLUMBERGER TECHNOLOGY CORPORATION, Michael L Flynn, Rachel E Greene, Robin Nava, October 31, 2017: US09803457

The current application aims at methods and systems for preparing a pump-ready treatment fluid, delivering the pump-ready treatment fluid to a location operationally coupled to a wellsite, providing the pump-ready treatment fluid to a pump; and pumping the pump-ready treatment fluid into a wellbore. ...


9
Timothy Lesko, Hariharan Ramakrishnan, Dmitriy Potapenko, Leland Ramsey: Well operations. Schlumberger Technology Corporation, Michael L Flynn, Robin Nava, November 6, 2018: US10119378

The disclosure pertains to methods for completing a well may comprise lowering a coiled-tubing in the well thus forming an annulus between the casing and the coiled-tubing, pumping down said annulus a treatment fluid above the fracturing pressure of the formation while also pumping fluid through the ...


10
Timothy Lesko, Kim Hodgson, Edward Kent Leugemors, Rod Shampine: Solids delivery apparatus and method for a well. SCHLUMBERGER TECHNOLOGY CORPORATION, Mathiew Vandermolen, Rachel E Greene, Michael L Flynn, April 26, 2016: US09322246

A method that is usable with a well includes introducing solids into a pneumatic stream to produce a solids-containing pneumatic stream; communicating the solids-containing pneumatic stream to a blender assembly to mix the solids with at least one other material to produce a flow; and pumping the fl ...