Separating Material Entering Well Patents (Class 166/265)
  • Patent number: 10590749
    Abstract: Methods for making efficient use of steam in a steam-assisted gravity drainage (SAGD) process for recovering heavy oils from tar sands and similar petroleum deposits are disclosed. The methods utilize a surfactant to generate steam foam in ways that maximize efficient use of steam. In some aspects, steam foam is used in water layers or gas caps that reside above steam chambers to prevent loss of steam from the steam chamber. The predominant use of relatively dry steam in SAGD processes makes it challenging to find ways to introduce surfactants and generate steam foam. However, decreasing the mobility of the steam by converting at least some of it to foam allows the wellbore and steam chambers above the injection site to be more fully developed, provides for more effective heat transfer to the heavy oil and rock, improves production, and allows recovery of the heavy oil with a minimum amount of steam usage.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: March 17, 2020
    Assignee: Stepan Company
    Inventors: Aaron Sanders, Gregory P. Dado, Brian Holland, Xue Min Dong, E. Carolina Rojas
  • Patent number: 10323494
    Abstract: A system includes a casing-liner, a first downhole separator, a production pump, and a second downhole separator disposed within a wellbore casing disposed in a wellbore. An annular disposal zone is defined between the casing-liner and the wellbore casing. First downhole separator is configured to receive a production fluid from a production zone and generate a hydrocarbon rich stream and a water stream including a solid medium. Production pump is configured to pump the hydrocarbon rich stream from the first downhole separator to a surface unit. Second downhole separator is configured to receive the water stream including the solid medium from the first downhole separator, separate the solid medium to generate a separated water stream, and dispose the solid medium to the annular disposal zone. The system further includes a tube configured to dispose the separated water stream from the second downhole separator to a water disposal zone in wellbore.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: June 18, 2019
    Assignee: General Electric Company
    Inventors: Mahendra Ladharam Joshi, Xuele Qi, Raymond Patrick Murphy, Stewart Blake Brazil, Haifeng Jiang, Dewey Lavonne Parkey, Jr.
  • Patent number: 10100624
    Abstract: A bottom discharge ESP is disposed within a pod casing. The pod casing is adapted to connect to and support the weight of downstream tailpipe tubing sections so the ESP does not have to support the same. The ESP may be suspended within the pod interior space by a supporting tube disposed above the ESP and extending into the pod interior space. The ESP includes a discharge tube with a seal assembly that engages a seal bore formed in the bottom end of the pod and cooperating with an interior surface of the tailpipe tubing to convey pumped injection fluid downward to the tailpipe tubing. Part of the pod casing may be perforated to allow injection fluid to flow into the pod interior space. Alternatively, perforated tubing joints or sliding sleeves may be provided on an upper tube to permit flow of injection fluid to the interior of the pod.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: October 16, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Euan Jamieson, Stuart Irvine
  • Patent number: 10061047
    Abstract: An example method for downhole surveying and measuring may include positioning a first conformable sensor proximate to a downhole element. The first conformable sensor may include a flexible material, a transmitter coupled to the flexible material, and a receiver coupled to the flexible material. An ultrasonic sensor may be positioned proximate to the downhole element. The receiver may measure an electrical response of the downhole element to a signal generated by the transmitter. An acoustic response of the downhole element may be measurements at the at the ultrasonic sensor. The electrical response and the acoustic response may be processed to determine a parameter of the downhole element.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: August 28, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Burkay Donderici
  • Patent number: 10060652
    Abstract: A geothermal heat exchanger includes a water injection pipe installed underground and receiving water supplied from above ground and a steam extraction pipe installed underground and contiguous to the water injection pipe. The steam extraction pipe has a plurality of gushing ports at its lower part, and pressure in the steam extraction pipe is decreased approximately to pressure required by a turbine. The steam extraction pipe is formed such that the diameter of the steam extraction pipe becomes smaller from the lower side of the geothermal region toward the upper side of a ground surface. Water supplied to the water injection pipe becomes high-temperature pressurized water by heat supplied from the geothermal region, and gushes from the gushing ports into the steam extraction pipe in an atomized state, and is then converted into a steam single-phase flow, and allows a power generator to conduct power generation.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: August 28, 2018
    Assignee: KYOEI DENKI KOGYO CORPORATION
    Inventor: Shunichi Tahara
  • Patent number: 9998023
    Abstract: A modular subsea converter for providing a frequency conversion of AC electric power is provided. The modular subsea converter includes at least one base module having a subsea enclosure and electrical connections disposed within the subsea enclosure. It further includes at least one converter module having a converter unit. The converter module is coupled to the base module and has a subsea enclosure in which the converter unit is disposed. The electrical connections of the base module are coupled to the converter unit of the converter module and the subsea enclosure of the converter module is mounted to the subsea enclosure of the base module.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: June 12, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventor: Knut Schonhowd Kristensen
  • Patent number: 9958572
    Abstract: A multi-layer composite synthetic test bed may be used to model fracture propagation and fracture networks. For example, a fracturing fluid may be introduced into a multi-layer composite synthetic test bed at a pressure and a flow rate sufficient to create a fracture network therein. Then, the fracture network may be analyzed to produce synthetic fracture data, which may be used in a fracture model.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: May 1, 2018
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Andy Cheng Chang, Syed Muhammad Farrukh Hamza, Matthew Lewis Lahman, Jesse Clay Hampton, Ruixiang Gu, Stephen Byrne Persac
  • Patent number: 9920611
    Abstract: A well pump assembly includes rotary pump and a submersible motor. A shroud surrounds the pump intake and the motor. The shroud has an open upper end in fluid communication with the pump intake. A tubular member of smaller diameter is secured to and extends downward from a lower end of the shroud. The tubular member may have an open lower end for drawing well fluid along a lower flow path up the tubular member to the pump intake. An upper flow path at the upper end of the shroud may have a minimum flow area that is smaller than a minimum flow area of the lower flow path. The tubular member has a smaller outer diameter than an outer diameter of the shroud. The tubular member may have a closed lower end to define a debris collection chamber with a drain valve.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: March 20, 2018
    Assignee: Baker Hughes, a GE Company, LLC
    Inventors: Leslie C. Reid, Jeffrey S. Bridges, Brent D. Storts
  • Patent number: 9777222
    Abstract: A radio frequency (RF) hydrocarbon resource upgrading device may include a first hydrocarbon resource upgrading path that may include a plurality of first RF power applicator stages coupled in series. Each first RF power stage is configured to apply RF power to upgrade a hydrocarbon resource passing therethrough. The RF hydrocarbon resource upgrading device may also include a second hydrocarbon resource upgrading path that may include at least one second RF power applicator stage coupled in parallel with at least one of the first RF power applicator stages. The second RF power applicator stage is configured to apply RF power to upgrade the hydrocarbon resource passing therethrough.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: October 3, 2017
    Assignee: HARRIS CORPORATION
    Inventors: Mark Ernest Blue, Lisa Patton Zastrow, Ryan Matthew Whitney, Ronald Edward Jackson, Jr., John Anton Meyer
  • Patent number: 9631472
    Abstract: A well pump assembly includes rotary pump and a submersible motor. A shroud surrounds the pump intake and the motor. The shroud has an open upper end in fluid communication with the pump intake. A tubular member of smaller diameter is secured to and extends downward from a lower end of the shroud. The tubular member may have an open lower end for drawing well fluid along a lower flow path up the tubular member to the pump intake. An upper flow path at the upper end of the shroud may have a minimum flow area that is smaller than a minimum flow area of the lower flow path. The tubular member has a smaller outer diameter than an outer diameter of the shroud. The tubular member may have a closed lower end to define a debris collection chamber with a drain valve.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: April 25, 2017
    Assignee: Baker Hughes Incorporated
    Inventors: Leslie C. Reid, Jeffrey S. Bridges, Brent D. Storts
  • Patent number: 9604863
    Abstract: A pressure cycling wastewater treatment apparatus can include a confined chamber which encloses an interior volume. The confined chamber can have a wastewater inlet through which wastewater can flow into the confined chamber. In addition, an expansion fluid inlet can receive an expansion fluid into the confined chamber. A treated water outlet can allow treated water to flow out of the confined chamber. Within the interior volume of the confined chamber, a mechanical pressurizing element can be configured to move in a cyclical pattern. Motion of the mechanical pressurizing element can cyclically compress and decompress a mixture of wastewater and expansion fluid inside the confined chamber. The motion of the mechanical pressurizing element can be driven by a driving unit connected to the mechanical pressurizing element through a crankshaft.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: March 28, 2017
    Inventor: P. K. Andy Hong
  • Patent number: 9500763
    Abstract: The present disclosure introduces a downhole tool conveyable within a tubular within a wellbore extending into a subterranean formation. The downhole tool includes a body and a member having a first end and a second end, wherein the first end is rotatably coupled to the body. A spectrometry sensor is disposed proximate the second end of the member. Embodiments also include a fluid separating component shaped such that a heavier fluid from the fluid flowing along the downhole tool is drawn away from the spectrometry window to reduce window contamination from fluid droplets, particles, and/or liquids.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: November 22, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Pierre Vigneaux
  • Patent number: 9447647
    Abstract: A method of controlling pressure in a well can include transmitting an instruction to change flow through an annulus formed radially between a drill string and a wellbore, and adjusting a pressure setpoint in response to the transmitting. A well drilling system can include a flow control device which varies flow through a drill string, and a control system which changes a pressure setpoint in response to an instruction for the flow control device to change the flow through the drill string. A method of controlling pressure in a well can include transmitting an instruction to divert flow from a drill string, and adjusting a pressure setpoint in response to the transmitting.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: September 20, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James R. Lovorn, Nancy S. Davis
  • Patent number: 9283497
    Abstract: A gas separator is configured to separate gas from a two-phase fluid. The gas separator includes a rotatable shaft and one or more separation stages. At least one of the one or more separation stages includes a rotor connected to the rotatable shaft and a channeled compression tube, wherein the channeled compression tube includes a compression tube hub and a plurality of channels. The channels are configured to isolate abrasive solid particles from the rotary components within the gas separator. The gas separator may optionally include a streamer upstream from the separation stage that reduces rotational currents upstream from the rotor.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: March 15, 2016
    Assignee: GE Oil & Gas ESP, Inc.
    Inventors: Chengbao Wang, Kelly Pidsadowski
  • Patent number: 9188120
    Abstract: A method for removing a buildup of solid impurities on a barrel using a cyclonic debris evacuation assembly, the method comprising: capturing solid impurities between a cup component of said cyclonic debris evacuation assembly and the barrel in a groove positioned below the cup component; directing the solid impurities in the groove into at least one port; and flushing away the solid impurities.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: November 17, 2015
    Inventor: Michael Brent Ford
  • Patent number: 9157307
    Abstract: A downhole tool for separating fluids into a liquid and a gas component are provided herein. The downhole tool includes an inlet for receiving a multiphase fluid, the multiphase fluid comprising a gas component and a liquid component. The tool also includes a hydrocyclone portion where the flow of the multiphase fluid is vortical and the liquid component migrates to an inner surface of the hydrocyclone portion and the gas component is forced to a central area of the hydrocyclone portion and exits the downhole tool via a gas outlet. The tool further includes a liquid outlet permitting the liquid component to exit the downhole tool.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: October 13, 2015
    Assignee: Thru Tubing Solutions, Inc.
    Inventor: Roger Schultz
  • Patent number: 9133702
    Abstract: An alternative piston pump employed in mechanical pumping systems for oil extraction. The alternative piston pump includes a case part having at least one cavity disposed along its inner surface. Thus, during the pumping cycle, a gas transfer from a bottom chamber to the case part above a piston and an oil transfer from the case part above the piston to the bottom chamber is established.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: September 15, 2015
    Assignee: Rijeza Industria Metalurgica LTDA
    Inventor: Ivo Antonio Geremia
  • Patent number: 9080443
    Abstract: A down hole fluid conditioning assembly, includable within a drilling bottom hole assembly or other tool configuration, creates a vortex to separate fluids such as drilling mud and the like into a lower density first portion and higher density second portion. The lower density first portion is directed toward the bottom hole assembly or other equipment to improve operational performance of the bottom hole assembly or other equipment. The higher-density second portion is directed away from the bottom hole assembly or other equipment, typically into a well annulus with an upward velocity component.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: July 14, 2015
    Inventors: Kris Henderson, Lee Robichaux
  • Patent number: 9052405
    Abstract: A method for characterizing wellbore response of a pulsed neutron instrument includes inserting a pulsed neutron instrument into a plurality of simulated wellbores each filled with materials representing gas and liquid and measuring response of the pulsed neutron instrument in the simulated wellbores.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: June 9, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Tong Zhou, Sicco Beekman, Timothy M. Quinlan
  • Patent number: 9012838
    Abstract: The present disclosure relates to functionalized nanodiamonds comprising at least one MALDI matrix covalently bonded to a nanodiamond and compositions comprising the same. The present disclosure also relates to methods of performing matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-MS), for example on small molecules, using matrices comprising at least one MALDI matrix covalently bonded to a nanodiamond.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: April 21, 2015
    Assignee: University of Saskatchewan
    Inventors: Anas El-Aneed, Jackson Chitanda
  • Patent number: 9010440
    Abstract: Embodiments of the present invention generally relate to methods and apparatus for centrifugal separation. In one embodiment, a separator includes an outer tubular having ends sealed from the environment and an inner tubular. The inner tubular is disposed within the outer tubular, has ends in fluid communication with a bore of the outer tubular, and is attached to the outer tubular. The separator further includes an inlet. The inlet is disposed through a wall of the outer tubular, in fluid communication with a bore of the inner tubular, and tangentially attached to the inner tubular so that fluid flow from the inlet to the inner tubular is centrifugally accelerated. The separator further includes a gas outlet in fluid communication with the outer tubular bore; and a liquid outlet in fluid communication with the outer tubular bore.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: April 21, 2015
    Assignee: Weatherford/Lamb, Inc.
    Inventors: George Joel Rodger, Denman L. Cloudt, Jr.
  • Patent number: 9004166
    Abstract: A gas separator for separating gas from a fluid in a production stream in a producing hydrocarbon well is described. The gas separator includes a central tube sized to fit into a well casing of the producing hydrocarbon well and having an input at its lower end for receiving the production stream and perforations at its upper end to allow the production stream to flow into the space between the central tube and the well casing. A suction tube is located inside the central tube, the suction tube is operable to draw fluid from the space between the central tube and the well casing and to deliver the fluid to an artificial lift mechanism.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: April 14, 2015
    Assignee: Spirit Global Energy Solutions, Inc.
    Inventor: John M. Raglin
  • Patent number: 8997870
    Abstract: An apparatus for downhole separation of an oil/water fluid and the injection of the separated water into the formation includes a casing in a borehole, a tubing string in the casing, first perforations in the casing at a production zone in the borehole for admitting the mixture into an annulus between the casing and the tubing string, second perforations in the tubing string for admitting production fluid from the casing into the tubing string, third perforations in the casing for discharging separated water from the annulus into the formation, a packer in the annulus separating the first perforations from the third perforations, a first check valve in the tubing string above the packer for admitting the mixture from the tubing string into the annulus where water separates by gravity from the hydrocarbons for discharge through the third perforations, and a second check valve in the tubing string above the first check valve for admitting separated hydrocarbons from the annulus into the tubing string for passag
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 7, 2015
    Assignee: Canada West Resources Inc.
    Inventors: Norman J. McAllister, Stuart D. McAllister
  • Patent number: 8978753
    Abstract: A cyclonic strainer for a well intake that provides for improved separation of gas and fluid in naturally flowing wells during mechanical pumping operations. The strainer includes an elongated member having a channel formed longitudinally therein. A plurality of apertures extend through the elongated member angled downwardly into the channel and away from a center of the channel allowing for a better shear between gas and fluids. The angle of the ports causes fluid to be forced in an opposite direction, resulting in gases and fluids shearing more quickly and cleanly, due to kinetic energy. The angle of the ports can be varied to accommodate different conditions in various well environments. In well environments in which gaseous conditions are extreme, it can be desired for the ports to be sloped southwardly or downwardly at a greater angle than for well environments in which gaseous conditions are not as extreme.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: March 17, 2015
    Inventor: Michael Brent Ford
  • Publication number: 20150068741
    Abstract: The disclosure is directed toward a downhole tool for separating fluids into a liquid and a gas component. The downhole tool includes an inlet for receiving a multiphase fluid, the multiphase fluid comprising a gas component and a liquid component. The tool also includes a hydrocyclone portion where the flow of the multiphase fluid is vortical and the liquid component migrates to an inner surface of the hydrocyclone portion and the gas component is forced to a central area of the hydrocyclone portion and exits the downhole tool via a gas outlet. The tool further includes a liquid outlet permitting the liquid component to exit the downhole tool.
    Type: Application
    Filed: August 27, 2014
    Publication date: March 12, 2015
    Inventor: Roger Schultz
  • Patent number: 8960283
    Abstract: An apparatus for use in launching cement plugs in a well cementing operation comprises a cylinder, a piston slideably received in the bore of the cylinder and an actuator extending from the piston through the cylinder. The actuator is operable by the piston for launching plugs from the apparatus into the well. A resilient damper cartridge is slideably mounted on the actuator in the cylinder so as to be contactable by the piston. A series of frangible pins is located in the cylinder wall so as to provide temporary limits to the movement of the cartridge in the cylinder as the piston slides along the cylinder.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: February 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Joel Rondeau, Philippe Gambier, André Salvaire, Greg Giem
  • Patent number: 8960282
    Abstract: A subterranean debris catcher takes in debris laden fluid at a lower end. The inlet flow is induced with an eductor whose discharge goes around the housing to the lower end inlet for the debris. The eductor suction induces flow into the lower end of the housing as well. Incoming debris goes up an annular space around the collection receptacle and turns to pass through a bladed wheel that imparts a spin to the flowing stream. The flow direction reverses from up before the wheel to down through a tube after the wheel. The solids are flung to the tube periphery and the fluid reverses direction to go back up to a screen before reaching the eductor suction connection. The debris swirls down an open bottom tube and is collected in a housing surrounding the down tube.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: February 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Hong Zhu
  • Patent number: 8955598
    Abstract: A downhole well pumping assembly has a shroud with an upper section and a lower section sealed from one another. A submersible pump and a gas separator are housed within the upper section of the shroud. The gas separator has a liquid outlet in fluid communication with an intake of the pump, and a gas outlet in fluid communication with the gas outlet in the shroud. A motor is housed within the lower section of the shroud, the motor being coupled to the gas separator for rotating the gas separator and the pump. A well fluid lower inlet is in the shroud below the motor and a well fluid lower outlet is in the shroud above the motor.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Donn J. Brown, Brown L. Wilson, Michael J. Fox
  • Patent number: 8936094
    Abstract: An example flow control device includes a body having an inlet and an outlet and a flow chamber extending therebetween. The flow chamber is configured to convey a fluid composition comprising a desired and an undesired fluid from the inlet to the outlet. A nozzle is arranged at the outlet and in fluid communication with the flow chamber, and at least one helical groove is defined along at least a portion of an axial length of the flow chamber. The at least one helical groove is configured to impart rotational motion to the fluid composition and thereby force at least some of the undesired fluid into the at least one helical groove and slow a progress of the undesired fluid along the axial length of the flow chamber.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 20, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Brandon Thomas Least, Stephen Michael Greci
  • Patent number: 8899325
    Abstract: A borehole is drilled from the surface to an underground shale matrix. A pipe is inserted into the borehole. Openings are created in the pipe in fluid communication with fractures in the shale matrix. The interior surface of at least one section of pipe is coated with a contaminant-capturing substance. Fracturing fluid including water, proppants and chemicals is pumped through the pipe and into the fractures in the shale matrix. The fluid re-enters the pipe from the shale matrix and moves toward the surface through the coated pipe section where contaminants are sequestered by the coating. Natural gas or oil from the fractured shale then enters the pipe and moves to the surface to be collected. The coated pipe section remains in the ground permanently such that the necessity of disposing of the captured contaminants is eliminated.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: December 2, 2014
    Inventor: Donald Nevin
  • Patent number: 8857512
    Abstract: An in situ extraction process for the recovery of hydrocarbons from a hydrocarbon bearing formation, including the steps of injecting a solvent consisting substantially of one of the group of H2S, Ammonia or COS into the formation to mobilize the hydrocarbons for extraction by forming a mobile in situ extraction fluid; and lifting the extraction fluid containing the mobilized hydrocarbons from the underground formation to the surface. In a further aspect an extraction method for a specific reservoir is provided including the steps of: establishing a minimum desired extraction rate, based on a value for the porosity, permeability and dead oil viscosity of the in situ bitumen in the specific reservoir, determining a desired minimum operating extraction temperature determining a desirable range of operating pressures identifying solvents predicted to deliver the operating extraction temperature within the range of operating pressures, and selecting a preferred solvent to use in the process.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: October 14, 2014
    Assignee: N-Solv Corporation
    Inventors: John Nenniger, Stephen Dunn
  • Publication number: 20140251605
    Abstract: The present invention is directed to the use of non-silicon containing alcohol compositions that are capable of breaking a foam and preventing the formation of a foam for application to industries such as oil/gas extraction, production and refining.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 11, 2014
    Applicant: ECOLAB USA INC.
    Inventor: John Hera
  • Publication number: 20140238671
    Abstract: Provided herein are, inter alia, compositions including a surfactant and a phenol-alkoxylate co-solvent useful in enhanced oil recovery. The compositions and methods provided herein are particularly useful for oil recovery under a broad range of reservoir conditions (e.g. high to low temperatures, high to low salinity, highly viscous oils).
    Type: Application
    Filed: February 28, 2014
    Publication date: August 28, 2014
    Applicant: Board of Regents, The University of Texas System
    Inventors: Upali P. Weerasooriya, Gary A. Pope
  • Patent number: 8807214
    Abstract: Heavy crude oils having high sulfur content and viscosities are upgraded by a hydrodesulfurization (HDS) process that includes microwave irradiation of a mixture of the sour heavy crude oil with at least one catalyst and optionally, one or more sensitizers, and irradiation in the presence of hydrogen. The process is also adapted to microwave treatment of hard to break emulsions, either above ground or below ground where water-in-oil emulsions are initially formed, followed by the catalytic hydrodesulfurization promoted by application of further microwave energy to the demulsified crude oil stream.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: August 19, 2014
    Assignee: Saudi Arabian Oil Company
    Inventors: M. Rashid Khan, Emad Naji Al-Shafei
  • Patent number: 8789592
    Abstract: A method includes introducing a treatment fluid including a first polymer gel into a subterranean formation to generate a production fluid having an aqueous portion and a hydrocarbon portion, treating the aqueous portion of the production fluid with chlorine dioxide to separate additional hydrocarbons from the aqueous portion, and adjusting the viscosity of the treated aqueous portion prior to introducing the treated aqueous portion back into the subterranean formation.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: July 29, 2014
    Assignee: Sabre Intellectual Property Holdings LLC
    Inventor: John Mason
  • Patent number: 8783345
    Abstract: A method of microbial enhanced oil recovery from a wellbore in an oil-bearing formation that includes injecting water into the oil-bearing formation via a tubing string in the wellbore and introducing oxygen into the oil-bearing formation for consumption by microbes in the oil-bearing formation. The oxygen introduction includes delivering the oxygen into the oil-bearing formation without having the introduced oxygen contact the walls of the tubing string and without having the introduced oxygen contact the injected water within the tubing string while the injected water is in the tubing string.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: July 22, 2014
    Assignee: Glori Energy Inc.
    Inventors: John Babcock, Bud Bierhaus, Mark Mayfield, Thomas Ishoey
  • Patent number: 8763700
    Abstract: Proppants for use in fractured or gravel packed/frac packed oil and gas wells are provided with a contaminant removal component to remove one or more of the contaminants found in subterranean water/hydrocarbon from a production well. The water/hydrocarbon cleaning proppant solids may be used as discrete particles in a proppant formulation, as a coating on proppant solids in pores of a porous proppant solid or as part of the proppant's internal structure. The contaminant removal component removes contaminants, especially dissolved contaminants, in the subterranean water or hydrocarbon before the water/hydrocarbon leaves the well. For those contaminant removal components that can be regenerated, such as ion exchange resins, a measured quantity of an acidic regeneration solution can be injected into the fractured stratum for regeneration and recovered when the well resumes production.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: July 1, 2014
    Inventors: Robert Ray McDaniel, Avis Lloyd McCrary
  • Publication number: 20140174734
    Abstract: A downhole separator for separating solids from downhole well fluids comprises a cyclonic separation assembly. The assembly comprises a housing with at least one inlet port and an intake member disposed within the housing. The intake member includes a feed tube, a guide member disposed about the feed tube, and a vortex tube coaxially disposed within the feed tube. The assembly also comprises a cyclone body coaxially disposed within the housing and extending axially from the feed tube. In addition, the separator comprises an upper solids collection assembly coupled to the housing and configured to receive the separated solids from the cyclone body. Further, the separator comprises a lower solids collection assembly coupled to the housing and configured to receive the separated solids from the first solids collection assembly.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 26, 2014
    Applicant: BP Corporation North America Inc.
    Inventors: Alistair Gill, Paul Ellerton, David Fielding
  • Patent number: 8757257
    Abstract: The present invention relates to a crown-shaped separation device for separating oil and water in a well. Separator joints are sleeved on a central tube, and a separator is arranged between adjacent separator joints. Settlement cups are sleeved on the central tube, and two adjacent settlement cups are inserted together. A multi-rib separating bowl is embedded in the settlement cup. The settlement cup is crown shape. The bottom of the settlement cup is formed with multiple ribs. An angle is formed between the convex rib of the bottom of the settlement cup and the horizontal line. The top edge of the settlement cup is sawtooth shape corresponding to the shape of the cup bottom. An annular space is formed between the cup base of the settlement cup and the central tube. The central tube corresponding to the annular space is provided with a fluid inlet.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: June 24, 2014
    Assignees: PetroChina Company Limited, Daqing Oilfield Co., Ltd.
    Inventors: Yan Wang, Demin Wang, Rongjie Zhu, Long Ren, Rong Zhong, Hongyan Wang
  • Patent number: 8757256
    Abstract: An orbital downhole separator for separating well fluids into constituents of different specific gravities. Specifically, it is designed to separate water from oil or gas. The apparatus comprises a housing with a rotating member therein driven by a motor in the housing. Well fluid flows through the rotating member and is subjected to centrifugal force to separate the components. A flow conditioner is used to facilitate separation. The invention includes several different versions of the flow conditioner including an impeller, a stator and controllers for controlling the speed of the motor in response to signals related to the amount of petroleum in the water.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: June 24, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Liping Li, Syed Hamid, Harry D. Smith, Jr., Jim B. Surjaatmadja, Robert K. Michael
  • Publication number: 20140158352
    Abstract: Three-phase separation is achieved downhole in a production well by forming an oil/liquid separation zone in the well between two packers which are positioned between producing and disposal zones. Gas is permitted to separate above the top packer. A pump is used to pump an oil/water mixture from above the top packer into the separation zone. Adequate residence time is permitted in the separation zone to achieve the separation. A check valve in the bottom packer is used to provide pressure to raise the oil to the wellhead. A control valve at the wellhead is used to control pressure in the separation zone and the relative sizes of the streams issuing therefrom.
    Type: Application
    Filed: December 7, 2012
    Publication date: June 12, 2014
    Inventors: MICHAEL C. RAMSEY, MICHAEL L. FINLEY
  • Patent number: 8746335
    Abstract: A borehole is drilled from the surface to an underground shale matrix. A pipe is inserted into the borehole. Openings are created in the pipe in fluid communication with fractures in the shale matrix. The interior surface of at least one section of pipe is coated with a contaminant-capturing substance. Fracturing fluid including water, proppants and chemicals is pumped through the pipe and into the fractures in the shale matrix. The fluid re-enters the pipe from the shale matrix and moves toward the surface through the coated pipe section where contaminants are sequestered by the coating. Natural gas or oil from the fractured shale then enters the pipe and moves to the surface to be collected. The coated pipe section remains in the ground permanently such that the necessity of disposing of the captured contaminants is eliminated.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: June 10, 2014
    Inventor: Donald Nevin
  • Patent number: 8726989
    Abstract: The method begins drilling a borehole from the surface to an underground shale matrix. A pipe is inserted into the borehole. Fractures are created in the shale matrix by pumping fracturing fluid including water, proppants and various chemicals into the shale matrix to widen the fractures. The interior surface of at least one section of pipe is coated with a contaminant-capturing substance. The fluid re-enters the pipe from the shale matrix and moves through the coated pipe section to the surface where contaminants are sequestered by the coating. Natural gas or oil from the fractured shale then enters the pipe and moves to the surface to be collected. The coated pipe section remains in the ground permanently such that the necessity of disposing of the captured contaminates is eliminated.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 20, 2014
    Inventor: Donald Nevin
  • Publication number: 20140076552
    Abstract: Treatment fluids that include magnetic surfactants may be useful in various subterranean operations, e.g., particulate placement operations and drilling operations. For example, some methods may include introducing a treatment fluid into a wellbore penetrating a subterranean formation, the treatment fluid including at least a base fluid and a magnetic surfactant, the magnetic surfactant being a cationic surfactant having a magnetically susceptible counterion.
    Type: Application
    Filed: September 15, 2012
    Publication date: March 20, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Robert J. Murphy
  • Patent number: 8663371
    Abstract: A frac truck is provided for the portable metering and dispensing of sand into a fractionation fluid system. Hopper vessels for powder, sand or other aggregate have a discharge vent for releasing air that is displaced during the filling of the hoppers. Venting is required to prevent over pressurization; conventionally, this vented gas entrains a significant amount of solids that would subsequently be released into the atmosphere. A dust collector is mounted for receiving the vented air displaced when powdered material is loaded into the hoppers. The dust collector is connected through a vent tube communicating between the hoppers and the dust collector. Air vented from the hoppers is drawn though the dust collector and past and through a filter media, where clean air is discharged and solids collected. A low profile rotary airlock is used to discharge solids from the bottom of the dust collector.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: March 4, 2014
    Inventor: Jeremiah Wann
  • Publication number: 20140048257
    Abstract: An oil and gas downhole device is disclosed wherein the device separates the oil and gas from undesired water, which returns to the formation.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Inventor: Clifford Wayne Hunter
  • Patent number: 8651184
    Abstract: A new method separating sand, solids, and produced particulates down-hole in a well producing hydrocarbons. The separation assembly can include ether one, two, or more segments or stages of varying lengths depending upon the individual application. The assembly is installed into the tubing string or delivery conduit of a well producing hydrocarbons. One stage can consist of a velocity chamber whereby separation of particulates occurs by increasing the downward velocity of particulates and reducing the upward velocity of hydrocarbons thereby allowing the particulates to “fall-out” into a lower chamber where the particulates are captured. Another stage can consist of a filter whereby particulates are captured in a chamber that can consist of filtering materials such as gravel, rock, sand, wood, or manmade materials. Each of the stages can be employed individually or in combination.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: February 18, 2014
    Assignee: Spirit Global Energy Solutions, Inc.
    Inventor: John M. Raglin
  • Publication number: 20140034476
    Abstract: Method and device (100) for purifying and bringing water up from a water body (50), the device including: a hollow, vertical structure, having a first space (110) with a supply opening (112) for water to be purified; a boiling device (111) for such water which is driven with light from an optical fiber (12); a condenser (133) for condensing water vapour from the boiling device; a container (131) for condensed water, which container is connected to the condenser; and a conduit device (120) for water vapour between the space and the condenser. The space communicates freely with the water body. The outlet of the container is arranged above a heating location in the boiling device.
    Type: Application
    Filed: December 28, 2011
    Publication date: February 6, 2014
    Applicant: H2DO AB
    Inventor: Rolf Ljunggren
  • Publication number: 20140000879
    Abstract: A system and process are provided for recovering petroleum from a formation. An oil recovery formulation comprising at least 75 mol % dimethyl sulfide that is first contact miscible with a liquid petroleum composition is introduced into a petroleum bearing formation and petroleum and oil recovery formulation are produced from the formation. The produced oil recovery formulation is separated from the produced petroleum, and the produced oil recovery formulation is introduced into the formation.
    Type: Application
    Filed: June 25, 2013
    Publication date: January 2, 2014
    Inventors: Stanley Nemec MILAM, John Justin FREEMAN, Erik Willem TEGELAAR
  • Patent number: 8616272
    Abstract: Disclosed herein is a downhole water-oil separation arrangement which includes a body having one or more portions thereof configured to have an affinity to a selected fluid. The body further will include one or more portions thereof that are configured to have an affinity to another fluid.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: December 31, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Oleg A. Mazyar, Michael H. Johnson