Patents by Inventor Marina Bulova

Marina Bulova 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).

  • Publication number: 20180306016
    Abstract: A method can include receiving stimulation treatment scenario definitions for stimulation treatment of a reservoir that includes hydrocarbons; receiving reservoir data; receiving imagery data of a proppant pack; generating a model of the proppant pack based at least in part on the imagery data; simulating physical phenomena associated with a plurality of the stimulation treatment scenarios based at least in part on the model to generate simulation results; and, based at least in part on the simulation results, selecting parameter values for a stimulation treatment.
    Type: Application
    Filed: October 14, 2016
    Publication date: October 25, 2018
    Inventors: Sergey Safonov, Dean Willberg, Marina Bulova, Oleg Dinariev
  • Patent number: 9120963
    Abstract: 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: Grant
    Filed: November 8, 2006
    Date of Patent: September 1, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Kseniya Nosova, Marina Bulova, Simon James, Sergey Sokolov
  • Patent number: 8657002
    Abstract: 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: Grant
    Filed: June 28, 2012
    Date of Patent: February 25, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Patent number: 8604111
    Abstract: 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: Grant
    Filed: April 24, 2012
    Date of Patent: December 10, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Carlos Abad, Marina Bulova, Dzanis Menshikau
  • Publication number: 20120285695
    Abstract: A method of treating a downhole region penetrated by a wellbore with a treatment agent is given, including delivering the treatment agent to the wellsite enclosed in one or more destructible containers, inserting the one or more destructible containers into the fluid being pumped down the well, and mechanically breaking the one or more destructible containers in the wellbore or in the formation to release the treatment agent. A method is also given for treating a downhole region penetrated by a wellbore with a special solid diverting material, which includes special shapes such as fibers or flakes and/or blends of specially sized particles, including delivering the special solid diverting material to the wellsite enclosed in one or more containers, inserting the one or more containers into fluid being pumped down the well, and allowing the one or more containers to release the special solid diverting material in the wellbore.
    Type: Application
    Filed: May 11, 2011
    Publication date: November 15, 2012
    Applicant: Schlumberger Technology Corporation
    Inventors: Theodore Lafferty, John Daniels, Dmitry Potapenko, Bruno Lecerf, Marina Bulova
  • Publication number: 20120267103
    Abstract: 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: Application
    Filed: June 28, 2012
    Publication date: October 25, 2012
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Publication number: 20120208729
    Abstract: 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: Application
    Filed: April 24, 2012
    Publication date: August 16, 2012
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Dean M. Willberg, Carlos Abad, Marina Bulova, Dzanis Menshikau
  • Patent number: 8230925
    Abstract: 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: Grant
    Filed: November 15, 2010
    Date of Patent: July 31, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Patent number: 8167043
    Abstract: A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allowing the degradable material to form a plug in a perforation, a fracture, or a wellbore in a well penetrating a formation; performing a downhole operation; and allowing the degradable material to degrade after a selected time such that the plug disappears.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: May 1, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Marina Bulova, Christopher N. Fredd, Alexey Vostrukhov, Curtis L. Boney, John Lassek, Ann M. W. Hoefer, Philip F. Sullivan
  • Patent number: 8163826
    Abstract: 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: Grant
    Filed: November 21, 2006
    Date of Patent: April 24, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Carlos Abad, Marina Bulova, Dzanis Menshikau
  • Publication number: 20110056684
    Abstract: 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: Application
    Filed: November 15, 2010
    Publication date: March 10, 2011
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Patent number: 7833950
    Abstract: 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: Grant
    Filed: May 30, 2008
    Date of Patent: November 16, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Patent number: 7775278
    Abstract: A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allowing the degradable material to form a plug in a perforation, a fracture, or a wellbore in a well penetrating a formation; performing a downhole operation; and allowing the degradable material to degrade after a selected time such that the plug disappears.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: August 17, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Marina Bulova, Christopher N. Fredd, Alexey Vostrukhov, Curtis L. Boney, John Lassek, Ann M. W. Hoefer, Philip F. Sullivan
  • Publication number: 20080289823
    Abstract: A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allowing the degradable material to form a plug in a perforation, a fracture, or a wellbore in a well penetrating a formation; performing a downhole operation; and allowing the degradable material to degrade after a selected time such that the plug disappears.
    Type: Application
    Filed: August 8, 2008
    Publication date: November 27, 2008
    Inventors: Dean M. Willberg, Marina Bulova, Christopher N. Fredd, Alexey Vostrukhov, Curtis L. Boney, John Lassek, Ann M.W. Hoefer, Philip F. Sullivan
  • Publication number: 20080236823
    Abstract: 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: Application
    Filed: May 30, 2008
    Publication date: October 2, 2008
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Publication number: 20080200352
    Abstract: A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allowing the degradable material to form a plug in a perforation, a fracture, or a wellbore in a well penetrating a formation; performing a downhole operation; and allowing the degradable material to degrade after a selected time such that the plug disappears.
    Type: Application
    Filed: February 29, 2008
    Publication date: August 21, 2008
    Inventors: Dean M. Willberg, Marina Bulova, Christopher N. Fredd, Alexey Vostrukhov, Curtis L. Boney, John Lassek, Ann M.W. Hoefer, Philip F. Sullivan
  • Patent number: 7398826
    Abstract: Well treatment is disclosed that includes injecting a well treatment fluid with insoluble polyol polymer such as polyvinyl alcohol (PVOH) dispersed therein, depositing the insoluble polymer in the wellbore or an adjacent formation, and thereafter dissolving the polymer by reducing salinity and/or increasing temperature conditions in the environment of the polymer deposit. The method is disclosed for filter cake formation, fluid loss control, drilling, hydraulic fracturing and fiber assisted transport, where removal of the polyol at the end of treatment or after treatment is desired. The method is also disclosed for providing dissolved polyol as a delayed breaker in crosslinked polymer viscosified systems and viscoelastic surfactant systems. Also disclosed are well treatment fluids containing insoluble amorphous or at least partially crystalline polyol, and a PVOH fiber composition wherein the fibers are stabilized from dissolution by salinity.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: July 15, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Ann M. W. Hoefer, Philip F. Sullivan, Golchehreh Salamat, Curtis L. Boney, Jesse C. Lee, Yiyan Chen, Dean M. Willberg, Marina Bulova, Christopher N. Fredd, Belgin Baser, Timothy L. Pope
  • Patent number: 7380600
    Abstract: A method for well treatment by forming a temporary plug in a fracture, a perforation, a wellbore, or more than one of these locations, in a well penetrating a subterranean formation is provided, in which the method of well treatment includes: injecting a slurry comprising a degradable material, allowing the degradable material to form a plug in a perforation, a fracture, or a wellbore in a well penetrating a formation; performing a downhole operation; and allowing the degradable material to degrade after a selected time such that the plug disappears.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: June 3, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean Willberg, Marina Bulova, Christopher N. Fredd, Alexey Vostrukhov, Curtis L. Boney, John Lassek, Ann M. W. Hoefer, Philip F. Sullivan
  • Patent number: 7380601
    Abstract: 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: Grant
    Filed: August 28, 2007
    Date of Patent: June 3, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Publication number: 20080119374
    Abstract: 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: Application
    Filed: November 21, 2006
    Publication date: May 22, 2008
    Inventors: Dean M. Willberg, Carlos Abad, Marina Bulova, Dzanis Menshikau