Patents by Inventor Andrey A. Troshko

Andrey A. Troshko 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: 20170138166
    Abstract: Downhole gas separators, artificial lift systems including the downhole gas separators, hydrocarbon wells including the artificial lift systems, and methods of separating a gas from a liquid hydrocarbon within a hydrocarbon well. The downhole gas separators include an elongate outer housing that defines an enclosed volume, a fluid inlet port, and a gas outlet port. The downhole gas separators further include an elongate dip tube that extends within the enclosed volume, and the gas outlet port is configured to selectively provide fluid communication between the enclosed volume and an external region.
    Type: Application
    Filed: August 24, 2016
    Publication date: May 18, 2017
    Inventors: Jason Y. Wang, Andrey A. Troshko, Scott R. Buechler, Michael C. Romer
  • Publication number: 20170138167
    Abstract: Artificial lift apparatus, systems, and methods for use in a deviated or horizontal wellbore, including a downhole gas separators, hydrocarbon wells including the artificial lift systems, and methods of separating a gas from a liquid hydrocarbon within a hydrocarbon well. Included is a downhole gas separator positioned in a deviated or horizontal wellbore, further including a flow-regulating device configured to restrict fluid flow through the gas outlet during at least a portion of each intake stroke of a reciprocating pump and to permit the fluid flow during at least a portion of each exhaust stroke of the reciprocating pump.
    Type: Application
    Filed: August 24, 2016
    Publication date: May 18, 2017
    Inventors: Jason Y. Wang, Andrey A. Troshko, Scott R. Buechler, Michael C. Romer
  • Patent number: 9593559
    Abstract: A sand control device for restricting flow of particles from a subsurface formation into a tubular body within a wellbore, the device being divided into compartments along its length, each compartment comprises a base pipe. The base pipe defines an elongated tubular body having a permeable section and an impermeable section within each compartment, also comprising a first filtering conduit and a second filtering conduit. The filtering conduits are arranged so that the first filtering conduit is adjacent to the non-permeable section of the base pipe, while the second filtering conduit is adjacent to the permeable section of the base pipe.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: March 14, 2017
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Charles S. Yeh, Tracy J. Moffett, Ted A. Long, Andrey A. Troshko, Michael D. Barry, Michael T. Hecker, David A. Howell, Annabel Green, Stephen McNamee, Rodney S. Royer, Robert F. Hodge, Peter Olenick, Henry Nguyen, William Barry Fisher
  • Patent number: 9441474
    Abstract: A method of backfilling a subsurface formation that includes forming a mixture tailings from at least two sources that have particles with different size distributions. The water content of the mixture is varied to control the rheology of the mixture. The mixture is injected through one or more pipes into a target location, such as a subsurface formation.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: September 13, 2016
    Assignee: ExxonMobil Upstream Research Company
    Inventors: David P. Yale, Andrey A. Troshko, Sergio A. Leonardi, Neal L. Adair
  • Publication number: 20150240602
    Abstract: A method for removing liquids from a gas well. The method includes the steps of atomizing gas well liquids within a wellbore to produce a volume weighted average droplet size of less than or equal to about 400 ?m; dispersing the atomized gas well liquids within a gaseous production stream; producing the gaseous production stream having dispersed atomized gas well liquids; and adjusting atomization parameters to maximize the rate of gas well liquids removed. A system, apparatus and kit of parts for removing liquids from a gas well are also provided.
    Type: Application
    Filed: February 9, 2015
    Publication date: August 27, 2015
    Inventors: Andrey A. Troshko, Michael C. Romer
  • Publication number: 20150041123
    Abstract: Systems and methods for accessing and/or harvesting hydrocarbons from a wellbore. A method may include modeling a well to determine a length of a stimulation zone in the production interval, wherein the model is based, at least in part, on a reaction time for a stimulation process. Packers are placed in the well to fluidically isolate the stimulation zone from other zones in the well. The targeted zone is stimulated, such as by acid treatment. Hydrocarbons may be recovered from the stimulation zone.
    Type: Application
    Filed: October 4, 2012
    Publication date: February 12, 2015
    Inventors: Andrey A. Troshko, James S. Brown, III, Chris E. Shuchart
  • Publication number: 20140231083
    Abstract: A sand control device for restricting flow of particles from a subsurface formation into a tubular body within a wellbore, the device being divided into compartments along its length, each compartment comprises a base pipe. The base pipe defines an elongated tubular body having a permeable section and an impermeable section within each compartment, also comprising a first filtering conduit and a second filtering conduit. The filtering conduits are arranged so that the first filtering conduit is adjacent to the non-permeable section of the base pipe, while the second filtering conduit is adjacent to the permeable section of the base pipe.
    Type: Application
    Filed: August 23, 2012
    Publication date: August 21, 2014
    Inventors: Charles S. Yeh, Tracy J. Moffett, Ted A. Long, Andrey A. Troshko, Michael D. Barry, Michael T. Hecker, David A. Howell, Annabel Green, Stephen McNamee, Rodney S. Royer, Robert F. Hodge, Peter Olenick, Henry Nguyen, William Barry Fisher
  • Patent number: 8584749
    Abstract: Methods for hydrocarbon recovery from a subsurface formation include removing a mixture comprising hydrocarbons and particulate solids from a first formation. At least a portion of the hydrocarbons are separated from the particulate solids. The particulate solids are separated into a plurality of streams. A mixed slurry comprising a first portion of the plurality of streams is injected through a first pipe into the first formation. A waste stream comprising a second portion of the plurality of streams is injected through a second pipe into a second formation. The first formation and the second formation lie in a substantially vertical line.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: November 19, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Andrey A. Troshko, Sergio A. Leonardi, David P. Yale
  • Publication number: 20130240210
    Abstract: An embodiment of the present techniques provides a method of injecting a particulate mixture into a target location. The method includes forming a mixture of at least two sources of particles with different size distributions wherein the mixture of solids has a permeability in a predefined range. A water content of the mixture is varied to control the rheology of the mixture. The particles are injected through one or more pipes into a target location.
    Type: Application
    Filed: September 29, 2011
    Publication date: September 19, 2013
    Inventors: David P. Yale, Andrey A. Troshko, Sergio A. Leonardi, Neal L. Adair
  • Publication number: 20120211228
    Abstract: Methods for modeling, configuring, and controlling artificial lift processes are provided as well as systems for controlling artificial lift and hydrocarbon production systems. In particular, the methods and systems include the use of computation solid-liquid slurry models and reservoir inputs configured to provide inputs to configure parameters of an artificial lift system. The methods and systems may also incorporate fluid lift computational models and volume of fluid (VOF) models for verifying the numerical results. The disclosed methods and systems may beneficially be used in combination with hydrocarbon production processes such as fluidized in-situ reservoir extraction (FIRE) process; a SRBR process; an enhanced CHOPS process; and any combination thereof.
    Type: Application
    Filed: July 9, 2010
    Publication date: August 23, 2012
    Inventors: Andrey A. Troshko, David P. Yale
  • Publication number: 20120175127
    Abstract: Methods and systems for producing a dense oil sand slurry from subsurface reservoirs are provided. The methods include reducing pressure at a producer pipe inlet to draw a dense slurry into the producer pipe using a jet pump, generating a diluted dense slurry using the jet pump, and lifting the diluted dense slurry through the producer pipe utilizing a slurry lift apparatus, which may be a fluid lift apparatus. The systems include a producer pipe into an oil sand reservoir, a jet pump configured to generate a low pressure region around the opening of the producer pipe to draw the dense slurry into the producer pipe and dilute the dense slurry to form a diluted dense slurry; and a gas lift apparatus configured to lift the diluted dense slurry through the producer pipe towards the surface of the earth.
    Type: Application
    Filed: July 9, 2010
    Publication date: July 12, 2012
    Applicant: EXXONMOBIL UPSTREAM RESEARCH COMPANY
    Inventors: David P. Yale, Andrey A. Troshko, Bennett D. Woods
  • Publication number: 20120152534
    Abstract: Methods for hydrocarbon recovery from a subsurface formation include removing a mixture comprising hydrocarbons and particulate solids from a first formation. At least a portion of the hydrocarbons are separated from the particulate solids. The particulate solids are separated into a plurality of streams. A mixed slurry comprising a first portion of the plurality of streams is injected through a first pipe into the first formation. A waste stream comprising a second portion of the plurality of streams is injected through a second pipe into a second formation. The first formation and the second formation lie in a substantially vertical line.
    Type: Application
    Filed: November 4, 2011
    Publication date: June 21, 2012
    Inventors: Andrey A. Troshko, Sergio A. Leonardi, David P. Yale