Patents by Inventor Dean M. Willberg
Dean M. Willberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9120963Abstract: A water absorbing composition includes a particle having a core of a water-swelling material. A coating substantially surrounds the core that temporarily prevents contact of water with the water-swelling material. The coating may be formed from a layer of water degradable material or a non-water-degradable, non-water absorbent encapsulating layer. A quantity of particles including delayed water-swelling particles formed at least in part from a water-swelling material and, optionally, non-water-swelling particles of the same or different size distributions can be used in treating a formation penetrated by a wellbore. A slurry of the particles is formed with a carrier fluid. The slurry of particles is introduced into the wellbore of the formation to facilitate treatment.Type: GrantFiled: November 8, 2006Date of Patent: September 1, 2015Assignee: Schlumberger Technology CorporationInventors: Dean M. Willberg, Kseniya Nosova, Marina Bulova, Simon James, Sergey Sokolov
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Patent number: 9085727Abstract: 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 (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the material (24), and removing the filler material (24) to form open channels (26) around the pillars (28). The filler material can be dissolvable particles, initially acting as a consolidator during placement of the proppant in the fracture, and later dissolving to leave flow channels between the proppant pillars. The well treatment fluid can include extrametrical materials to provide reinforcement and consolidation of the proppant and, additionally or alternatively, to inhibit settling of the proppant in the treatment fluid.Type: GrantFiled: July 13, 2012Date of Patent: July 21, 2015Assignee: Schlumberger Technology CorporationInventors: Fedor Nikolaevich Litvinets, Andrey Vladimirovich Bogdan, Sergey Mikhailovich Makarychev-Mikhailov, Oleg Medvedev, Alejandro Pena, Konstantin Mikhailovich Lyapunov, Alexander Vuacheslavovich Mikhaylov, Timothy M. Lesko, J. Ernest Brown, Dean M. Willberg, Ivan Vitalievich Kosarev, Anatoly Vladimirovich Medvedev, Jonathan Abbott, Alexander Alexandrovich Burukhin
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Publication number: 20150167443Abstract: 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 (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the material (24), and removing the filler material (24) to form open channels (26) around the pillars (28). The filler material can be dissolvable particles, initially acting as a consolidator during placement of the proppant in the fracture, and later dissolving to leave flow channels between the proppant pillars. The well treatment fluid can include extrametrical materials to provide reinforcement and consolidation of the proppant and, additionally or alternatively, to inhibit settling of the proppant in the treatment fluid.Type: ApplicationFiled: February 23, 2015Publication date: June 18, 2015Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Fedor Nikolaevich Litvinets, Andrey Vladimirovich Bogdan, Sergey Mikhailovich Makarychev-Mikhailov, Oleg Medvedev, Alejandro Pena, Konstantin Mikhailovich Lyapunov, Alexander Vuacheslavovich Mikhaylov, Timothy M. Lesko, J. Ernest Brown, Dean M. Willberg, Ivan Vitalievich Kosarev, Anatoly Vladimirovich Medvedev, Jonathan Abbott, Alexander Alexandrovich Burukhin
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Publication number: 20150159465Abstract: A method of treating a subterranean formation includes generating a fracture in the subterranean formation, introducing a predetermined amount of proppant into a treatment fluid, and subsequently introducing a plugging agent into the treatment fluid before the entire predetermined amount of proppant reaches the fracture, minimizing overdisplacement of the proppant from the fracture.Type: ApplicationFiled: December 11, 2013Publication date: June 11, 2015Applicant: Schlumberger Technology CorporationInventors: Bruno Lecerf, Chad Kraemer, Timothy L. Pope, Dean M. Willberg, Zinaida Usova
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Publication number: 20140366621Abstract: Systems and methods for gas sorption analysis, or analogous practices, of samples from unconventional reservoirs are described. The described analysis of samples is used to determine various properties of unconventional reservoirs, which are used in evaluating their worth and producibility.Type: ApplicationFiled: September 2, 2014Publication date: December 18, 2014Inventors: John J. Valenza, Nicholas J. Drenzek, Flora Marques, Hendrik Grotheer, Dean M. Willberg
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Patent number: 8881587Abstract: Systems and methods for gas sorption analysis, or analogous practices, of samples from unconventional reservoirs are described. The described analysis of samples is used to determine various properties of unconventional reservoirs, which are used in evaluating their worth and producibility.Type: GrantFiled: January 26, 2012Date of Patent: November 11, 2014Assignee: Schlumberger Technology CorporationInventors: John J. Valenza, II, Nicholas J. Drenzek, Flora Marques, Hendrik Grotheer, Dean M. Willberg
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Publication number: 20140262249Abstract: Method of stimulating subterranean formations for are given in which a thermite is placed downhole and then ignited. The thermite may be ignited with a downhole tool, the fracture may be mapped, and the thermite-affected region of the formation may be reconnected to the surface after the thermite reaction through the original or a second wellbore.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Dean M. Willberg, James Ernest Brown
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Patent number: 8763699Abstract: A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting a first treatment fluid comprising a gas and substantially free of macroscopic particles through a wellbore to initiate a fracture in a subterranean formation; injecting a second treatment fluid comprising proppant and channelant through the wellbore into the fracture; placing the proppant in the fracture in a plurality of proppant clusters forming pillars spaced apart by the channelant; and removing the channelant to form open channels around the pillars for fluid flow from the subterranean formation through the fracture toward the wellbore.Type: GrantFiled: November 19, 2010Date of Patent: July 1, 2014Assignee: Schlumberger Technology CorporationInventors: Oleg Medvedev, Alejandro Pena, Timothy Lesko, J. Ernest Brown, Dean M. Willberg, Ivan V. Kosarev, Anatoly Medvedev
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Patent number: 8757259Abstract: 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 proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the channelant (24), and removing the channelant filler material (24) to form open channels (26) around the pillars (28) for fluid flow from the formation (14) through the fracture (20) toward the wellbore (10). The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture.Type: GrantFiled: November 12, 2010Date of Patent: June 24, 2014Assignee: Schlumberger Technology CorporationInventors: Timothy Lesko, J. Ernest Brown, Dean M. Willberg, Ivan V. Kosarev, Anatoly Medvedev, Jonathan Abbott, Alexander Burukhin
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Publication number: 20140138085Abstract: 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 proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the channelant (24), and removing the channelant filler material (24) to form open channels (26) around the pillars (28) for fluid flow from the formation (14) through the fracture (20) toward the wellbore (10). The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars.Type: ApplicationFiled: January 27, 2014Publication date: May 22, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Timothy M. Lesko, J. Ernest Brown, Dean M. Willberg, Ivan Ivan Vitalievich, Anatoly Vladimirovich Medvedev
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Patent number: 8657002Abstract: A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity to prevent particulate settling. Fibers are given that have properties optimized for proppant transport but degrade after the treatment into degradation products that do not precipitate in the presence of ions in the water such as calcium and magnesium. Crosslinked polymer carrier fluids are identified that are not damaged by contaminants present in the fibers or by degradation products released by premature degradation of the fibers.Type: GrantFiled: June 28, 2012Date of Patent: February 25, 2014Assignee: Schlumberger Technology CorporationInventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
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Patent number: 8636065Abstract: 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 proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the channelant (24), and removing the channelant filler material (24) to form open channels (26) around the pillars (28) for fluid flow from the formation (14) through the fracture (20) toward the wellbore (10). The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars.Type: GrantFiled: April 29, 2011Date of Patent: January 28, 2014Assignee: Schlumberger Technology CorporationInventors: Timothy Lesko, J. Ernest Brown, Dean M. Willberg, Ivan V. Kosarev, Anatoly Medvedev
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Patent number: 8604111Abstract: A composition is formed from a polymeric acid precursor, such as polylactic acid (PLA), that is a least partially dissolved within a polymer dispersing solvent. An emulsion may be from polymeric acid precursor that is at least partially dissolved within a solvent and a liquid that is substantially immiscible with the solvent. In certain cases, the molecular weight of the polymeric acid precursor may be reduced in forming the solution. The solution may be used in treating a formation penetrated by a wellbore.Type: GrantFiled: April 24, 2012Date of Patent: December 10, 2013Assignee: Schlumberger Technology CorporationInventors: Dean M. Willberg, Carlos Abad, Marina Bulova, Dzanis Menshikau
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Patent number: 8584755Abstract: The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage comprising injection of fracturing fluid into a borehole, the fluid containing thickeners to create a fracture in the formation; and a second stage comprising introduction of proppant into the injected fracturing fluid to prevent closure of the created fracture, and further, comprising introducing an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids.Type: GrantFiled: November 18, 2011Date of Patent: November 19, 2013Assignee: Schlumberger Technology CorporationInventors: Dean M. Willberg, Matthew J. Miller, Marc Jean Thiercelin, Ivan Vitalievich Kosarev
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Patent number: 8490700Abstract: 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 or islands spaced apart by the channelant, and removing the channelant filler material to form open channels around the pillars for fluid flow from the formation through the fracture toward the wellbore. The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include fibers to provide reinforcement and consolidation of the proppant and/or to inhibit settling of the proppant in the treatment fluid.Type: GrantFiled: November 28, 2011Date of Patent: July 23, 2013Assignee: Schlumberger Technology CorporationInventors: Timothy Lesko, J. Ernest Brown, Dean M. Willberg, Ivan Kosarev, Anatoly Medvedev
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Publication number: 20130146292Abstract: A method of injecting well treatment fluid including proppant and proppant-spacing filler material through a wellbore into the fracture, heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands spaced apart by the material, and removing the filler material to form open channels around the pillars for fluid flow from the formation through the fracture toward the wellbore. The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The filler material can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars. The well treatment fluid can include extrametrical materials to provide reinforcement and consolidation of the proppant and/or to inhibit settling of the proppant.Type: ApplicationFiled: June 12, 2012Publication date: June 13, 2013Inventors: Fedor Nikolaevich Litvinets, Andrey Vladimirovich Bogdan, Sergey Mikhailovich Makarychev-Mikhaylov, Oleg Medvedev, Alejandro Pena, Konstantin Mikhailovich Lyapunov, Alexander Vuacheslavovich Mikhaylov, Timothy M. Lesko, J. Ernest Brown, Dean M. Willberg, Ivan Vitalievich Kosarev, Anatoly Vladimirovich Medvedev, Jonathan Abbott, Alexander Alexandrovich Burukhin
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Publication number: 20120325472Abstract: 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 (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the material (24), and removing the filler material (24) to form open channels (26) around the pillars (28). The filler material can be dissolvable particles, initially acting as a consolidator during placement of the proppant in the fracture, and later dissolving to leave flow channels between the proppant pillars. The well treatment fluid can include extrametrical materials to provide reinforcement and consolidation of the proppant and, additionally or alternatively, to inhibit settling of the proppant in the treatment fluid.Type: ApplicationFiled: July 13, 2012Publication date: December 27, 2012Inventors: Fedor Nikolaevich Litvinets, Andrey Vladimirovich Bogdan, Sergey Mikhailovich Makarychev-Mikhailov, Oleg Medvedev, Alejandro Pena, Konstantin Mikhailovich Lyapunov, Alexander Vuacheslavovich Mikhaylov, Timothy M. Lesko, J. Ernest Brown, Dean M. Willberg, Ivan Vitalievich Kosarev, Anatoly Vladimirovich Medvedev, Jonathan Abbott, Alexander Alexandrovich Burukhin
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Publication number: 20120267103Abstract: A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity to prevent particulate settling. Fibers are given that have properties optimized for proppant transport but degrade after the treatment into degradation products that do not precipitate in the presence of ions in the water such as calcium and magnesium. Crosslinked polymer carrier fluids are identified that are not damaged by contaminants present in the fibers or by degradation products released by premature degradation of the fibers.Type: ApplicationFiled: June 28, 2012Publication date: October 25, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
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Publication number: 20120208729Abstract: A composition is formed from a polymeric acid precursor, such as polylactic acid (PLA), that is a least partially dissolved within a polymer dispersing solvent. An emulsion may be from polymeric acid precursor that is at least partially dissolved within a solvent and a liquid that is substantially immiscible with the solvent. In certain cases, the molecular weight of the polymeric acid precursor may be reduced in forming the solution. The solution may be used in treating a formation penetrated by a wellbore.Type: ApplicationFiled: April 24, 2012Publication date: August 16, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Dean M. Willberg, Carlos Abad, Marina Bulova, Dzanis Menshikau
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Publication number: 20120192639Abstract: Systems and methods for gas sorption analysis, or analogous practices, of samples from unconventional reservoirs are described. The described analysis of samples is used to determine various properties of unconventional reservoirs, which are used in evaluating their worth and producibility.Type: ApplicationFiled: January 26, 2012Publication date: August 2, 2012Inventors: JOHN J. VALENZA, II, NICHOLAS J. DRENZEK, FLORA MARQUES, HENDRIK GROTHEER, DEAN M. WILLBERG