Cyclic Injection Then Production Of A Single Well Patents (Class 166/263)
  • Patent number: 10900327
    Abstract: A system and method is provided for upgrading a continuously flowing process stream including heavy crude oil (HCO). A reactor receives the process stream in combination with water, at an inlet temperature within a range of about 60° C. to about 200° C. The reactor includes one or more process flow tubes having a combined length of about 30 times their aggregated transverse cross-sectional dimension, and progressively heats the process stream to an outlet temperature T(max)1 within a range of between about 260° C. to about 400° C. The reactor maintains the process stream at a pressure sufficient to ensure that it remains a single phase at T(max)1. A controller selectively adjusts the rate of flow of the process stream through the reactor to maintain a total residence time of greater than about 1 minute and less than about 25 minutes.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 26, 2021
    Assignee: Aduro Energy, Inc.
    Inventor: W. Marcus Trygstad
  • Patent number: 10884084
    Abstract: Systems and methods for testing properties of a test sample with a tri-axial nuclear magnetic resonance include a tri-axial load frame encasing a tri-axial load cell having a tri-axial sample holder and a piston assembly. A radial space surrounds the tri-axial sample holder. The tri-axial load frame further encases at least one end cap operable to contact the tri-axial load cell, and a nuclear magnetic resonance instrument. An axial pressure line is in fluid communication with the piston assembly, a confining pressure line is in fluid communication with the radial space, and a pore pressure line in fluid communication with the test sample. The axial pressure line, the confining pressure line, and the pore pressure line are independent and separate fluid flow paths.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: January 5, 2021
    Inventor: Mustafa Hakimuddin
  • Patent number: 10815759
    Abstract: Systems and methods for performing steam injection operations in heavy oil formations using a fully-coupled thermo-hydro-mechanical model for improved steam penetration during the steam injection operations.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 27, 2020
    Inventors: Xinpu Shen, Guoyang Shen, Douglas Huber
  • Patent number: 10760389
    Abstract: The present disclosure relates to, according to some embodiments, an extraction process for recovering an oil from an oil reservoir comprising a mobile water. The extraction process includes the step of injecting a first solvent into the oil reservoir through the at least one injection well to form a first mixture, the first mixture comprising the first solvent, a first portion of mobile water, and a first portion of oil.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: September 1, 2020
    Inventors: Apostolos Kantzas, Jonathan Bryan, Robert Richardson, Donald E. H. Jones
  • Patent number: 10635762
    Abstract: A method for modeling reservoir souring using object-oriented numerical solutions separate from reservoir topography is described. Specifically, flow physics are separated into one or more objects, along with one or more H2S generation mechanisms, for modeling on time and spatial scales separate from field scale modeling.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: April 28, 2020
    Assignee: ConocoPhillips Company
    Inventors: Gary E. Jenneman, Edward Burger, Babajide Kolade
  • Patent number: 10465106
    Abstract: Methods for enhanced oil recovery from subterranean formations by treating a produced water prior to injection into the subterranean hydrocarbon reservoir and manipulating produced water compositions to increase the rate and/or amount of oil that is recovered from producing wells and/or a hydrocarbon reservoir. The treatment of the produced water can increase the pH of the water from about 0.75 to about 2.0.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: November 5, 2019
    Assignee: ESal, LLC
    Inventor: Geoffrey Thyne
  • Patent number: 10378324
    Abstract: A method for increasing efficiency in emulsion production for a steam-assisted gravity drainage (SAGD) oil well system includes generating a causal model of the SAGD oil well system and training the causal model of the SAGD oil well system utilizing historical time series data relating to one or more SAGD oil wells at one or more SAGD production sites of the SAGD oil well system. The historical time series data is obtained from a plurality of sensors in the SAGD oil well system. The method also includes utilizing the causal model to determine a forecast emulsion production and a forecast set of control parameters associated with one or more of the SAGD production sites of the SAGD oil well system. The method further includes adjusting a set of controls of the SAGD oil well system based on the forecast emulsion production and the forecast set of control parameters and subject to one or more constraints associated with the SAGD oil well system.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 13, 2019
    Assignee: International Business Machines Corporation
    Inventors: Andrew R. Conn, Lior Horesh, Matthias Kormaksson, Moshood O. Saliu, Theodore G. van Kessel
  • Patent number: 10351763
    Abstract: Treating a gas condensate reservoir having a porous formation material includes introducing a formation treatment fluid to the gas condensate reservoir and maintaining the formation treatment fluid in the gas condensate reservoir. The formation treatment fluid is a dispersion including metal oxide nanoparticles, and the gas condensate reservoir includes discrete portions of condensate in contact with the porous formation material.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: July 16, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Ayman Mohammed Almohsin, Mohammed Bataweel, Eyad Alali
  • Patent number: 10351759
    Abstract: A family of organic tracers is proposed for single well chemical tracer tests, for example for the measurement of residual oil in petroleum reservoirs. The tracers consist of at least one ester of (hydroxyalkyl) benzoic acid of formula (I), wherein at least one of R1 to R5 is a hydroxy alkyl group —R7—OH and each of the remaining R1 to R5 groups is independently selected from H, F, Cl, Br, I, CF3CF2Cl, CFCl2, CCl3 and at least one of these remaining R1 to R5 groups is not H, R6 is selected from CH3, C2H5, C3H7, C4H9, CF3, CH2CF3, CCl3, CH2CCl3, CH2CHCl2, CH2CH2Cl, CH2CF3, CH2CHF2, CH2CH2F, CH2CH2CH2F, CH2CH2CHF2, CH2CH2CF3, CH2CH2CH2Cl, CH2CH2CH—Cl2, CH2CH2CCl3, C3H6F, C3H5F2, C3H4F3, C3H6Cl, C3H5Cl2, C3H5Cl3 or a halogenated (hydroxymethyl)phenol and R7 is selected from CH2, C2H4, C3H6, C4H8.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: July 16, 2019
    Assignee: RESTRACK AS
    Inventors: Stephen J. Sayfritz, Alexander Krivokapic
  • Patent number: 10330658
    Abstract: Systems and methods are disclosed to analyze sediment and sedimentary rock properties. Example systems and methods transform data representing physical particles and burial histories into a three-dimensional representation of solids and pores in sediments and sedimentary rocks by analyzing effects of deposition, grain rearrangement, compaction, and chemical reactions. Resulting output may include three-dimensional representations which may be the basis of physical objects or media for laboratory tests. In an example, output may provide a basis for evaluating present-day properties for areas where sample material is unavailable, reconstructing properties for times in the geologic past, and forecasting the effects of engineering and industrial activities on properties.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: June 25, 2019
    Assignee: GEOCOSM, LLC
    Inventors: Robert H Lander, Linda M. Bonnell
  • Patent number: 10140393
    Abstract: Systems and methods for modeling subterranean formations that include both gaseous hydrocarbons and adsorbed hydrocarbons. The systems and methods include determining a formation volume factor for gaseous hydrocarbons that may be present within the subterranean formation and correcting the formation volume factor to generate a compensated formation volume factor. The systems and methods further may include simulating a fluid flow within the subterranean formation, with the simulating being based, at least in part, on the compensated formation volume factor. Correcting the formation volume factor may include adjusting the formation volume factor based, at least in part, on a fraction of the adsorbed hydrocarbons within the subterranean formation that desorbs from the subterranean formation and/or transitions to gaseous hydrocarbons during production of the gaseous hydrocarbons from the subterranean formation.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 27, 2018
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Nazish Hoda, Mita Das, Jim H. Lee, Abdel Wadood M. El-Rabaa
  • Patent number: 10125591
    Abstract: Provided are oil recovery techniques, which may include enhanced oil recovery techniques in which a heated combination of water vapor (steam) and dimethyl ether (DME) vapor are injected into an oil reservoir, such as containing heavy oil and/or bitumen, to facilitate extraction of the oil from the reservoir.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: November 13, 2018
    Assignee: Board of Regents, The University of Texas System
    Inventor: Ryosuke Okuno
  • Patent number: 10047275
    Abstract: In one aspect, a method of recovering hydrocarbons from a subterranean zone includes flowing carbon dioxide in a first state into the subterranean zone including hydrocarbons, wherein a density of the carbon dioxide in the first state is greater than a density of carbon dioxide in a gaseous state, and recovering at least a portion of the hydrocarbons in the subterranean zone in response to flowing carbon dioxide in the first state into the subterranean zone.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: August 14, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Fawaz M. Al-Otaibi, Sunil Kokal
  • Patent number: 9957787
    Abstract: Enhanced oil recovery is practiced in long lateral wellbores by drilling at least one of a sidetrack lateral wellbore end a branch lateral wellbore from the main lateral wellbore. After production of the sidetrack lateral wellbore or the branch lateral wellbore, EOR flood fluid is pumped info the at least one of the sidetrack lateral wellbore and the branch lateral wellbore and recovered hydrocarbons and EOR flood fluid are produced from the main lateral wellbore, or vice versa.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 1, 2018
    Inventor: Lloyd Murray Dallas
  • Patent number: 9664018
    Abstract: A method of hydraulically fracturing a subterranean formation is provided. The method comprises generating a primary fracture using a fracturing fluid. The method further comprises extending the primary fracture and/or creating micro fractures about the primary fracture by initiating a chemical reaction such as an exothermic reaction at about the primary fracture. In one embodiment, the fracturing fluid is used to convey one of the reactive components participating in the chemical reaction.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 30, 2017
    Inventors: Angela Lee Vandeponseele, Steven Alan Mestemacher
  • Patent number: 9512704
    Abstract: A method of recovering hydrocarbons from a subterranean formation includes placing a wellbore in the formation, wherein the wellbore is approximately horizontal in the formation; forming one or more fractures in the formation in fluid communication with the wellbore; recovering hydrocarbons from the formation through the wellbore; injecting a volume of fluid comprising greater than 98 mass % water and greater than 0.005 mass % active surfactant into the formation through the wellbore, wherein at least 10 mass % of said volume is injected at a bottom hole pressure at the heel of the wellbore that is less than the minimum horizontal stress in at least a portion of the overburden and at least 5 mass % of said volume is injected at a bottom hole pressure at the heel of the wellbore that is greater than the median minimum horizontal stress in the subterranean formation; and subsequently recovering in situ hydrocarbons from the subterranean formation.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: December 6, 2016
    Inventor: Matthew A. Dawson
  • Patent number: 9494025
    Abstract: The application is related to improving recovery of fracturing fluids from subterranean target earth intervals. The application is also related to improving hydrocarbon productivity of subterranean target earth intervals. The application is also related to controlling the development of fractures in subterranean target earth intervals.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: November 15, 2016
    Inventors: Vincent Artus, Chih Chen
  • Patent number: 9388676
    Abstract: Improved SAGD methods for recovering heavy oil from underground formations. In a first aspect a method is provided for drilling, using multi-lateral drilling techniques, a series of horizontal collector wells from a vertical shaft of a production well, below and parallel to an injection well. In a further alternative to the typical SAGD configuration having injector and producer well drilled from the same end of a region under development, the production well is instead drilled at an end of a region of development opposite to an end of such region at which an injector well is drilled. Lastly, in yet another aspect, the invention comprises a method for rejuvenating an existing SAGD well pair, comprising drilling a further production well or wells at an opposite end of said formation at which an existing injector well was drilled, preferably using multi-lateral drilling techniques.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: July 12, 2016
    Assignee: Husky Oil Operations Limited
    Inventor: Kamran R. Jorshari
  • Patent number: 9382494
    Abstract: A stabilized nano-Fe6-iron-crown ether complex is added to a heavy oil to reduce the viscosity of the heavy oil. The complex may be formed by preparing a solution of an iron salt and an oligomer crown compound in dialkylamine or diethylamine. Sodium tetrahydroboron (NaBH4) and dialkylamine or ethylendiamine are added at a temperature of 0-10° C. The mixture is heated to room temperature and boiled, thereby converting the formed iron (II)-borhydride complex (Fe(BH4)2) to a crown ether—iron-hydride complex [CWFe06].(2H)6. At higher temperature this last complex is converted to the Fe06-crown nanocomposite complex.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: July 5, 2016
    Inventors: Alimamed L. Shabanov, Elmira M. Ramazanova, Ulviyya A. Gasanova
  • Patent number: 9376901
    Abstract: Methods of resource recovery include reagents placed in a subterranean formation. The reagents generate heat, hydrogen gas and alkalinity which changes fluid flow characteristics. The forces of the reactions create fractures and cracks far from the well bore. These cracks and fractures are sealed if water is being transmitted through or near the reactions. As a result, the targeted fluids more efficiently flow to the well, along with decreased amounts of water waste, while stimulating generation of biogenic gases in the subterranean formations.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: June 28, 2016
    Inventor: John Pantano
  • Patent number: 9322255
    Abstract: A device is provided for extracting a hydrocarbon-containing substance from a reservoir. Thermal energy can be applied to the reservoir in order to reduce the viscosity of the substance. The device includes at least one conductor loop for inductively supplying electric current, to provide electric and/or electromagnetic heating, and a fluid conducting device for transporting and introducing a solvent fluid into the reservoir, to further reduce the viscosity of the substance.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: April 26, 2016
    Inventors: Dirk Diehl, Norbert Huber, Muris Torlak, Bernd Wacker
  • Patent number: 9074466
    Abstract: A well production and injection string includes a plurality of spaced apart packers each adapted to seal with a wall of the wellbore. A plurality of flow control devices are provided in the string, distributed between pairs of adjacent packers. The flow control devices are adapted to communicate flow between an interior and an exterior of the string with less restriction to flow from the interior to the exterior of the string than to flow from the exterior to the interior of the string.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: July 7, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Travis Thomas Hailey, Jr., Geirmund Saetre
  • Patent number: 9027642
    Abstract: A dual-purpose tool can be used for steam injection and production in a wellbore. A mandrel deploys in the wellbore to communicate steam in a steam injection operation and to communicate production fluid from the wellbore during production operations. A distributor on the mandrel has nozzles for injecting steam into the wellbore and has production valves for producing fluids from the wellbore. A screen can be used to screen production fluids as they are produced through the production valves. The nozzles can also allows produced fluids to flow into the mandrel, or backflow valves can be used to restrict flow of produced fluids through the nozzles while permitting the flow of steam out of the nozzles.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: May 12, 2015
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: John S. Sladic, Brian Sternaman, Christopher Hall
  • Publication number: 20150114635
    Abstract: Disclosed is a process for in situ upgrading of a heavy hydrocarbon comprising the steps of: (a) positioning a well in a reservoir containing a heavy hydrocarbon having an initial API gravity of less than or equal to about 20, an n-heptane asphaltene content as measured by the ASTM D-6560 of at least about 1 wt. %, and a viscosity at 35° C. greater than about 350 centistokes (cSt); (b) injecting one or more hydrocarbon solvents and one or more asphaltene precipitant additives into the well in any order at a ratio by volume of the solvent to the heavy hydrocarbon of at least from about 0.1:1 to about 20:1 under reservoir conditions so as to provide an upgraded hydrocarbon in the reservoir, wherein the upgraded hydrocarbon has an improved API gravity greater than the initial API gravity, a reduction in the asphaltene content, and a lower viscosity; and (c) producing the upgraded hydrocarbon from the well.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: Chevron U.S.A. Inc.
    Inventors: Cesar Ovalles, Estrella Rogel
  • Patent number: 8991488
    Abstract: A method and apparatus for extracting geothermal energy from a subterranean thermal reservoir through a wellbore where the heat exchange fluid is introduced at a slower velocity than the velocity at which the fluid is extracted. The method and apparatus further comprises a gas zone near the top of the wellbore to maintain the thermal energy of the heat exchange fluid. In one embodiment, a portion of the casing of the wellbore can directly contact the subterranean environment. Alternatively, a thermally conductive wall comprising a thermally conductive material can surround a portion of the casing of the wellbore. Further, the inner and/or outer surface of the pipes and conduits of the disclosed method and apparatus can include modified surface features that influence the flow and/or thermal conductivity of the heat exchange fluid.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: March 31, 2015
    Assignee: InnerGeo LLC
    Inventors: Ronald L. Loveday, J. Paul Mueller, Jr.
  • Publication number: 20150041126
    Abstract: A completion for steam injection and production includes a production tubing connected to a stinger, the production tubing having a continuous conduit extending from a Y-tool to an inverted Y-tool, a downhole steam generator (DSG) having a discharge conduit extending from the DSG to the inverted Y-tool, a bypass conduit extending from the Y-tool to the DSG, and a fuel supply tubing connected to the DSG. An artificial lift device may be incorporated into the completion.
    Type: Application
    Filed: August 4, 2014
    Publication date: February 12, 2015
    Inventors: Bruce Boyle, Mani Saikumar, David Verzwyvelt, Adam Charles Vasper
  • Patent number: 8939203
    Abstract: A system usable with a well includes a waveform generator for enhancing fluid recovery from a reservoir by controlling a production pump or an injection pump downhole in the well with waveform signals to create a pressure wave which propagates into the reservoir and enhances the recovery of the fluid.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: January 27, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: David Eslinger
  • Publication number: 20150007987
    Abstract: A method for injecting treatment chemical into a well includes selecting times at which to operate a chemical dispenser to inject a selected amount of treatment chemical into a well. At each selected time whether a wellbore pump is operating is determined. If the pump is operating the selected amount of treatment chemical is dispensed into the well. If the pump is not operating, no chemical is dispensed and a counter is incremented. At each subsequent selected time, the determining whether the well pump is operating is repeated. When a subsequent selected time coincides with a time at which the well pump is determined to be operating, the chemical dispenser is operated to inject a product of the number in the counter plus one, and the selected amount of treatment chemical into the well.
    Type: Application
    Filed: July 5, 2013
    Publication date: January 8, 2015
    Inventor: Robert N. Ayres
  • Publication number: 20150000905
    Abstract: The method can be used in the oil-producing industry for intensifying the production of oil and for increasing the intake capacity during the working of the bottom region of a seam and completion of wells. For producing pressure draw-down and repressuring cycles at the well bottom there is periodically changed the direction of flow of working liquid using controlled movement of jet pump. The value of maximal pressure draw-down is regulated, and periods of pressure draw-down and repressuring action are implemented with equal values of volumes of the inflow and the liquid pumpable into the seam in one cycle. These volumes in each subsequent cycle are increased. The cycles are continued until the increase in the values of the liquid volumes ceases. Chemical reagents are then pumped into the seam. If necessary, the cycles are repeated. The stimulation of the bottom region of the seam is completed with a pressure draw-down. 14 variants of formula.
    Type: Application
    Filed: December 11, 2012
    Publication date: January 1, 2015
    Inventors: Rustan Naifovich KAMALOV, Alexander Petrovich LYSENKOV
  • Patent number: 8905127
    Abstract: A process for utilizing microwaves to heat H2O within a subterranean region wherein the heated H2O contacts heavy oil in the subterranean region to lower the viscosity of the heavy oil and improve production of the heavy oil.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: December 9, 2014
    Assignee: ConocoPhillips Company
    Inventors: Dwijen K. Banerjee, John L. Stalder, Maxine Jones Madison, Wayne Reid Dreher, Jr.
  • Patent number: 8893787
    Abstract: Casing valves for selective well stimulation and control. A well system includes at least one valve interconnected in a casing string operable via at least one line external to the casing string to selectively control fluid flow between an exterior and interior of the casing string, and the casing string, valve and line being cemented in a wellbore. A method of selectively stimulating a subterranean formation includes: positioning a casing string in a wellbore, the casing string including spaced apart valves operable via a line to selectively control fluid flow between an interior and exterior of the casing string; and for each of multiple intervals of the formation in sequence, stimulating the interval by opening a corresponding one of the valves, closing the remainder of the valves, and flowing a stimulation fluid from the casing string into the interval.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: November 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Timothy R. Tips, Alfred R. Curington
  • Publication number: 20140338899
    Abstract: Methods and systems for completing a well including injecting a stimulation fluid to stimulate a first interval in the reservoir. The stimulation fluid is at a pressure sufficient to open a number of check valves in the first interval, allowing stimulation fluid to flow into the first interval. A number of ball sealers configured to block flow through the check valves are dropped into the well to stop the flow of the stimulation fluid into the first interval and begin treatment of a second interval. The stimulation fluid is injected to stimulate a subsequent interval with pressure sufficient to open a number of check valves in the subsequent interval, allowing stimulation fluid to flow into the subsequent interval. The dropping of ball sealers is repeated until all intervals are treated.
    Type: Application
    Filed: October 4, 2012
    Publication date: November 20, 2014
    Inventors: Pavlin B. Entchev, Stuart R. Keller, Jeffrey D. Spitzenberger
  • Publication number: 20140326450
    Abstract: A pneumatic fracturing method for exploiting shale gas, the method including: 1) applying a compressed gas for a first period of time at a first pressure to a shale formation; 2) applying the compressed gas for a second period of time at a second pressure to the shale formation; and 3) repeating steps 1) and 2) to produce fissures in the shale formation. A temperature of the compressed gas is at least 80° C. A maximum pressure of the compressed gas is at least 25 megapascal, and a minimum pressure of the compressed gas is between ¼ and ? of the maximum pressure.
    Type: Application
    Filed: July 20, 2014
    Publication date: November 6, 2014
    Inventors: Feng GAO, Heping XIE, Fubao ZHOU, Yang JU, Lingzhi XIE, Yingke LIU, Yanan GAO, Jianfeng LIU, Ru ZHANG
  • Patent number: 8863833
    Abstract: A system monitors and controls the injection of additives into formation fluids recovered through a well may include a plurality of nozzles that receive the injection fluid from an umbilical disposed in a well. Each nozzle may have an associated flow control element that is configured to affect a flow of the injection fluid ejected through the associated nozzle. The umbilical may include one or more filters positioned in a first of two parallel conduits formed along the umbilical. An occlusion member restricts in a second of the two conduits. The occlusion member permits flow in the second conduit after a predetermined pressure differential exists in the second conduit. The system may include a plurality of pressure sensors disposed along the umbilical, and an injector unit that dispenses fluid into the umbilical. A controller operatively coupled to the injector unit operates the injector in response to measurements from the pressure sensors.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: October 21, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Stephen Mescall, Matthew C. Stone, Louis F. LaFleur, James Joseph Freeman
  • 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
  • Patent number: 8839875
    Abstract: A system for sequestering CO2 gas and releasing natural gas from underground coal and/or gas shale formations using CO2 gas captured from the flue gas of a coal burning power plant, and processing it to produce cold liquid pressurized CO2, and injecting the cold liquid CO2 under pressure to create fractures within the formation and causing the CO2 to be adsorbed into the coal or gas shale and CH4 to be desorbed, released and recovered. No high volume of water, no toxic additives to the water and no sand proppants are used for hydro-fracture of the gas shale or coal bed.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: September 23, 2014
    Inventors: Ben M. Enis, Paul Lieberman
  • Publication number: 20140262240
    Abstract: A system for and methods of producing hydrocarbons from a formation. A method may include drilling a wellbore in a formation, forming a first fracture in the formation that emanates from the wellbore, forming a second fracture in the formation that emanates from the wellbore and is approximately parallel to the first fracture, and simultaneously (a) injecting a fluid from an injection tubing string in communication with the second fracture and (b) producing hydrocarbons that travel from the first fracture into a production tubing string that is substantially parallel to the injection tubing string. The wellbore may be substantially horizontal. The fluid may increase pressure in an area of the formation adjacent to the first fracture.
    Type: Application
    Filed: February 24, 2014
    Publication date: September 18, 2014
    Inventors: Thomas J. Boone, Stuart R. Keller, John T. Linderman, Matthew A. Dawson
  • Patent number: 8813854
    Abstract: A mobile water injection system and method for performing waterflooding in offshore reservoirs, and more particularly to enhance oil recovery in marginal offshore reservoirs is disclosed. The mobile water injection system and method include portable equipment, including a submersible pump to recover water from a body of water, a water storage tank, filtration and chemical treatment equipment to treat the recovered water, and an injection pump to pump the treated water at high pressure into the reservoir such that the residual oil is driven to adjacent production wells to increase oil recovery.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 26, 2014
    Assignee: Chevron U.S.A. Inc.
    Inventors: Akshay Sahni, Jarrad Rexilius
  • Patent number: 8757255
    Abstract: Some embodiments include a heavy-oil-based hydrocarbons effluent production installation for the production of hydrocarbons from at least one well. The installation includes an effluent-lightening fluid injection system at the bottom of the well, an effluent-evacuation pump, a plurality of sensors that measure physical units relating to the installation, and an automated device suitable for optimizing the lightening-fluid injection flow-rate and for regulating the pump speed. The automated device regulates the pump speed according to the physical units and a predetermined target production value. The speed of the pump and the physical units are within a predetermined range of values. some embodiments include a hydrocarbons production method in such an installation. Some embodiments make it possible to ensure a minimum consumption of lightening fluid, while ensuring good operation of the pump and good productivity of the well.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: June 24, 2014
    Assignee: Total S.A.
    Inventors: Emmanuel Toguem Nguete, Jean-Louis Beauquin
  • Patent number: 8720546
    Abstract: Disclosed herein is introduction of different nutrient solution formulations to a subterranean target site to prevent biofilm formation and biomass aggregation at the sand face of an injection well bore during MEOR or bioremediation processes. A first nutrient solution formulation supports growth of introduced microorganisms and a second nutrient solution formulation is used to promote biofilm formation to allow plugging of pores and channels in the subterranean target site, for MEOR or bioremediation.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: May 13, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Albert W. Alsop, Sheryl M. Anyzek, Robert D. Fallon, Edwin R. Hendrickson, Sharon Jo Keeler, Abigail K. Luckring, Michael P. Perry
  • Patent number: 8701763
    Abstract: Method of treating a hydrocarbon-bearing formation having brine and treated hydrocarbon-bearing formations. The method includes contacting a hydrocarbon-bearing formation with a composition comprising solvent and a polymer. The polymer comprises divalent units represented by formula: (formula I); and a plurality of alkyleneoxy groups. In some embodiments, the solvent at least one of solubilizes or displaces the brine in the formation. In some embodiments, the solvent includes at least one of a polyol or polyol ether independently having from 2 to 25 carbon atoms and at least one of water, a monohydroxy alcohol, an ether, or a ketone, wherein the monohydroxy alcohol, the ether, and the ketone each independently have up to 4 carbon atoms. Hydrocarbon-bearing formations and proppants treated with the polymer are also disclosed.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: April 22, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Jimmie R. Baran, Jr., Gregory D. Clark, George G.I. Moore, Michael S. Terrazas
  • Patent number: 8695707
    Abstract: This invention relates to compositions and methods of removing an organic deposit including introducing a fluid, wherein the fluid comprises at least two non-polar organic solvents and at least two polar organic solvents; allowing the fluid to dissolve at least a portion of the organic deposit; and removing at least a portion of the fluid. This invention relates to compositions and methods of removing an organic deposit including introducing a fluid, wherein the fluid comprises at least two non-polar organic solvents and at least two polar organic solvents, wherein the non-polar organic solvents comprise aromatic naphtha, terpenes, kerosene, and combination thereof, and wherein the polar solvents comprise heavy aromatic naphtha, cyclohexanone, N-2-methyl pyrrolidone, N-ethyl-2-pyrrolidone, and combination thereof, allowing the fluid to dissolve at least a portion of the organic deposit, and removing at least a portion of the fluid.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: April 15, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Jack Li, Syed A. Ali, Oscar Bustos, Matthew J. Miller
  • Patent number: 8684079
    Abstract: Described is a way to reduce solvent usage in solvent-dominated oil recovery processes through the use of an emulsion. Injection of an emulsion into an oil reservoir is performed as an alternative or supplement to solvent injection to minimize solvent usage per unit amount of oil recovered. The emulsion may contain solvent and the solvent may form an external-phase of the emulsion. A solvent-external emulsion may be injected and formed using an aqueous liquid or a gas as the internal phase. The emulsion may be an aqueous-external, vapor-internal emulsion with solvent being injected separately or simultaneously. Polymer may be added to viscosify the emulsions and use them for flow diversion in a solvent-dominated process.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 1, 2014
    Assignee: ExxonMobile Upstream Research Company
    Inventors: Robert Chick Wattenbarger, Robert D. Kaminsky, Bhargaw L. Adibhatla
  • Patent number: 8672033
    Abstract: Method of improving performance or efficiency of a wellbore pump associated with a wellbore and/or for increasing the rate of production of reservoir fluid from a reservoir, in which a wellbore pump is arranged to pump wellbore fluid within the wellbore to a surface. The method includes (a) selecting a wellbore which includes an associated wellbore pump associated with a production tube and arranged within a casing. An annulus is defined between the casing and the pump/production tube, the annulus including reservoir fluid which has a hydrostatic head which is at least 15 m above the level of an inlet of the wellbore pump, and (b) contacting a reservoir fluid in the annulus upstream of an inlet of the wellbore pump with a treatment formulation. The treatment formulation has a first polymeric material which includes —O— moieties pendent from a polymeric backbone thereof, and the first polymeric material is optionally cross-linked.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: March 18, 2014
    Assignee: Oilflow Solutions Holdings Limited
    Inventors: Michael John Crabtree, Philip Fletcher, Jeffrey Forsyth
  • Publication number: 20140027114
    Abstract: An embodiment of a method of operating at least two pressure vessels to inject a particulate slurry into a high-pressure line, comprises a first operating cycle comprising: isolating a pressure vessel from the high-pressure line, introducing, under low-pressure conditions, particulate solids into the pressure vessel through a particulate solids inlet aperture, a second operating cycle comprising: providing high-pressure flow into the pressure vessel, and providing a high-pressure slurry flow from the pressure vessel into the high-pressure line. The method further comprises causing a pressure vessel to operate in the first operating cycle while operating a pressure vessel in the second operating cycle, and synchronizing switching a first vessel from the first operating to a second operating cycle and switching a second vessel from the second operating cycle to the first operating cycle such that at least one of the vessels is operating in the second operating cycle.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Rajesh Luharuka, Rod Shampine, Jean-Louis Pessin, Philippe Gambier, Joe Hubenschmidt
  • 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
  • Publication number: 20130341246
    Abstract: Techniques for reducing a carbon emissions intensity of a fuel includes injecting a carbon dioxide fluid into a first wellbore; producing a hydrocarbon fluid from a second wellbore to a terranean surface; and producing a fuel from the produced hydrocarbon fluid, the fuel including a low-carbon fuel and assigned an emissions credit based on a source of the carbon dioxide fluid.
    Type: Application
    Filed: August 30, 2013
    Publication date: December 26, 2013
    Inventors: David William Keith, James Rhodes
  • Patent number: 8602098
    Abstract: The present invention relates generally to in situ hydrate control during hydrocarbon production when applying a recovery method utilizing cyclic injection of light hydrocarbon solvents. Hydrate formation is limited by creating an energy reserve within a hydrocarbon reservoir adjacent to the wellbore. A heated solvent is injected during an injection phase of a cyclic solvent dominated recovery process to form a heated region adjacent to the wellbore at the end of an injection cycle. The energy reserve is used to act against the evaporative cooling effect caused by subsequent production and associated depressurization to maintain reservoir conditions outside of hydrate formation conditions. In situ conditions are estimated and injected energy amounts are controlled.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: December 10, 2013
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Mori Y. Kwan, Rahman Khaledi, Robert D. Kaminsky, Mark S. Beckman, Robert Chick Wattenbarger, J. Pierre Lebel
  • Patent number: 8555958
    Abstract: A SAGD system including a string defining an axial flow channel and an annular flow pathway, a fluid access structure between the axial flow channel and the annular flow pathway, and a valve disposed within the annular flow pathway. The valve being selectively closable to selectively inhibit annular flow in an uphole direction. A method for treating a SAGD formation.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: October 15, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Anderson da Silva Amaral, Bradley Gene Baker
  • Patent number: 8550166
    Abstract: Devices, systems and related methods control a flow of a fluid between a wellbore tubular and a formation using a flow control device having a flow space formed therein; and a flow control element positioned in flow space. The flow control element may be configured to flex between a first radial position and a second radial position to in response to a pressure differential along the flow space.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: October 8, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Richard Yingqing Xu, Tianping Huang