With Means For Separately Pumping From Plural Sources In Well Patents (Class 166/54.1)
  • Patent number: 9638010
    Abstract: A downhole power generation device includes a tubular housing configured to be disposed within an annular space and around a portion of production tubing. The housing includes a flow compartment configured to receive a flow of fluid therethrough when the power generation device is in a power generation mode, and an electronics compartment comprising a controller and a power generation unit. The downhole power generation device further includes a turbomachinery system comprising a rotor disposed within the flow compartment and comprising a rotor hub and a plurality of rotor blades, wherein the rotor rotates when the flow of fluid traverses the flow compartment. The downhole power generation device also includes a port coupled to the flow compartment, through which fluid enters the flow compartment.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: May 2, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventor: Namhyo Kim
  • Patent number: 9631466
    Abstract: Systems for simultaneously injecting and producing in a well having multiple zones. One system includes a wellbore providing first perforations extending into a first subterranean formation and second perforations extending into a second subterranean formation, a production tubing having influx ports defined therein and an annulus defined between the wellbore and the production tubing, first and second pairs of wellbore isolation devices arranged about the production tubing and axially straddling the first and second perforations to define first and second formation zones, respectively, a first bypass conduit extending between the first pair of wellbore isolation devices, a second bypass conduit extending between the second pair of wellbore isolation devices, and an injection outlet defined on the first bypass conduit for injecting a portion of the fluid into the first subterranean formation and push hydrocarbons toward the second formation zone to be produced.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: April 25, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Stephen Michael Greci, Jean-Marc Lopez
  • Patent number: 8988030
    Abstract: This disclosure is drawn to methods, systems, devices and/or apparatus related to power control in applications over long cables. Specifically, the disclosed methods, systems, devices and/or apparatus relate to power control that considers the maximum power available at the end of a long cable (or from a battery) to a load over a broad range of load conditions. Some example systems may include a power supply located at the Earth's surface and a power converter coupled to the power supply via a cable having a first end coupled to the power supply and a second end coupled to the power converter. Some example power converters may be configured to measure the power being consumed by the electrical load in the well, and adjust operating parameter(s) of the electrical load based, at least in part, on the maximum power available at the second end of the cable.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: March 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Ramon Hernandez Marti, John Parry, Dudi Rendusara
  • Publication number: 20150047850
    Abstract: A system for gas hydrate production. The system includes a tubular having a plurality of ports. The plurality of ports includes a first port configured to automatically open at a first differential pressure, and to remain closed at differential pressures below the first differential pressure. A second port configured to remain closed at the first differential pressure, and to automatically open at a second differential pressure greater than the first differential pressure; wherein the second port is located uphole of the first port. Also included is a method of improving methane hydrate production.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 19, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Michael H. Johnson
  • Patent number: 8950493
    Abstract: Methods and systems are disclosed for well completion and/or production, where an aggregating, agglomerating or conglomerating composition is injected into a producible formation, zone or interval thereof to alter an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: February 10, 2015
    Assignee: Weatherford Technology Holding LLC
    Inventors: Ronald van Petegem, Sarkis R. Kakadjian, Frank Zamora
  • Patent number: 8944168
    Abstract: The present invention relates to a multistage centrifugal pump design, which has the diffusers, impellors, and a shaft, inserted within a high pressure housing, such that this assembly is fully enclosed within the housing, and the housing is of sufficient strength to be suitable for safe pressure containment of the fluids being pumped. This invention describes the technical details used to reconfigure the multistage centrifugal pump design to increase the discharge pressure capabilities higher than the 6,000 psig of current designs.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: February 3, 2015
    Assignee: Nexen Energy ULC
    Inventors: Dana Pettigrew, Wojciech A. Limanowka, Zoran Vukadin
  • Patent number: 8479815
    Abstract: A system for supplying water to a desalination plant from a subsurface feedwater supply using one or more slant or horizontally directionally drilled (“HDD”) wells, and for concentrate disposal (e.g., injection of brine). A method for constructing a slant or HDD well feedwater supply system for supplying water from a subsurface feedwater supply or to inject concentrate into a subsea aquifer.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: July 9, 2013
    Assignee: GEOSCIENCE Support Services, Inc.
    Inventor: Dennis E. Williams
  • Patent number: 8448699
    Abstract: A technique enables independent lifting of fluids in a well. The technique utilizes an electric submersible pumping system which is disposed in a wellbore and encapsulated by an encapsulating structure. The encapsulating structure has an opening through which well fluid is drawn to an intake of the electric submersible pumping system. A dual path structure is positioned in cooperation with the electric submersible pumping system and the encapsulating structure to create independent flow paths for flow of a gas component and a remaining liquid component of the well fluid. The independent flow paths also are arranged to prevent contact between the well fluid components and a surrounding wellbore wall.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: May 28, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Lawrence Camilleri, Brian Scott
  • Patent number: 8418768
    Abstract: The present invention relates to a system, apparatus, and method provided to selectively produce petroleum fluid from multiple production zones well. The apparatus comprises a casing running downwardly into the well and a tubing string running in the casing. The upper and lower sealing mechanisms are provided for sealing the annular space between the casing and the tubing string, therefore, dividing the well into upper and lower production zones. Moreover, the invention comprises a bypass gaslift system provided with a tubular member, tubing string, connecting means and side pocket mandrels for injecting lifting gas into the multiple production zones well. The system and apparatus according to this invention can selectively operate to simultaneously or separately produce petroleum fluid from vertical apart multiple zones well.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: April 16, 2013
    Assignee: PTT Exploration and Production Public Company Ltd.
    Inventors: Somchai Manopinives, Pramote Phloi-montri, Suraphong Iamchula, Kanit Sangwongwanich, Pairoj Rangponsumrit, Suwan Umnuayponwiwat, Thamarat Pairintra, Pattana Pittrapan, Suwin Sompopsart, Wararit Toempromraj, Kittithuch Hnuruang, Nithipoom Durongwattana, Amnuay Prayadsup, Potchara Promwikorn, Thanawee Kreethapon, Chatchai Kongdachudomkul
  • Patent number: 8408304
    Abstract: A bearing for a wellbore tool includes a flow device. The flow device may be a pump such as a positive displacement pump or a hydrodynamic pump. In arrangements, a pump stator connects to a wellbore wall. A pump rotor rotates with a drilling motor, and/or a drill string. Rotation of the pump rotor may generate a pressure differential to displace the fluid. The pump may be configured to flow fluid across a gap between a rotating section and a non-rotating section of the bearing. The fluid may be drawn from a wellbore annulus and also returned into the wellbore annulus. The bearing may support thrust loadings and/or a radial loadings. In embodiments, inserts in the bearing may be used to filter the fluid.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: April 2, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Olof Hummes, Bernd Santelmann, Sven Kruger
  • Patent number: 8365819
    Abstract: Well bore fluid redistribution methods to isolate fluids produced in well bores from different geologic sections on either side of an apparatus and redistribute such fluids produced in well bores between different geologic sections to reduce surface discharge of fluids while delivering gas to a well outlet.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: February 5, 2013
    Assignee: Big Cat Energy Corporation
    Inventors: Raymond P. Murphy, Timothy G. Barritt, Richard G. Stockdale
  • Publication number: 20130025856
    Abstract: A well completion and related method are provided for formations susceptible to simultaneous production of oil and water. In one embodiment, two closely spaced, preferably horizontal wellbores are drilled from a single well into the reservoir. The reservoir rock surrounding one leg (typically the upper leg) is chemically treated to make it hydrophobic, whereas the reservoir rock surrounding the other leg is chemically treated to make it hydrophilic. Separate production tubing and a dual completion is installed in order to enable independent flow from each leg. Drawdown pressures in both legs are controlled to be sufficiently close to each other such that only oil flows into one leg and only water into the other. The water produced is re-injected downhole or brought to the surface.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 31, 2013
    Applicant: Schlumberger Technology Corporation
    Inventors: Terizhandur S. Ramakrishnan, Paul S. Hammond, John M. Cook
  • Patent number: 8316950
    Abstract: A method for removing fluids from a commingled well comprises positioning a fluid removal system in the well. In addition, the method comprises sealing a first formation from a second formation, shutting in the annulus, and closing off an inner flow passage of a tubing string. Further, the method comprises allowing the pressure of the first and second production zones to build up naturally. Still further, the method comprises flowing a fluid from the first production zone through a first of a plurality of check valves into the inner flow passage, and flowing a fluid from the second production zone through a second of the plurality of check valves into the inner flow passage. Moreover, the method comprises re-opening the inner flow passage of the tubing string and lifting the fluid in the inner flow passage to the surface.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: November 27, 2012
    Assignee: BP Corporation North America Inc.
    Inventors: Alejandro Rodriguez, Karl Fuchs
  • Patent number: 8282365
    Abstract: A pump is disclosed which has a housing with a upper end and a lower end. A conduit is defined through the housing between the upper and the lower ends. The pump includes an impeller within the housing, an inlet from the conduit to the impeller and an outlet from the impeller. Portions of the impeller may be distributed around the conduit. The pump may also include a motor coupled to the impeller. Portions of motor may also be distributed around the conduit. The outlet from the impeller may be independent of the conduit.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: October 9, 2012
    Assignee: Star Oil Tools Inc.
    Inventor: Marcel Obrejanu
  • Patent number: 8196651
    Abstract: Well bore fluid redistribution apparatuses which can be inserted into a well bore to isolate fluids produced in well bores from different geologic sections on either side of the apparatuses. Operation of the well bore fluid redistribution apparatuses can redistribute fluids produced in well bores between different geologic sections to reduce surface discharge of fluids.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: June 12, 2012
    Assignee: Big Cat Energy Corporation
    Inventors: Raymond P. Murphy, Timothy G. Barritt, Richard G. Stockdale
  • Patent number: 8191619
    Abstract: The claimed invention relates to the downhole systems for extracting various fluids, in particular—for simultaneous extraction out of a number of producing formations. The inventive downhole system comprises a casing pipe and a tubing extending through said casing pipe, between which pipe and tubing formed are separate isolated cavities. Each one of which cavities communicates, via perforations, with a respective producing formation. In each one of the isolated cavities, to the tubing coupled is a hydraulic machine comprised by a motor and pump. The hydraulic machines in different isolated cavities being adapted to be adjusted independently. This system permits simultaneous extraction of fluids out of different producing formations, with independent controlling of such extraction in various formations. The claimed invention also relates to an immersion hydraulic machine used for extracting fluids.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: June 5, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: Jacques Orban
  • Patent number: 8171997
    Abstract: A method of producing a well fluid includes securing a motor to a string of outer tubing and lowering the outer tubing and motor into the well. A rotary pump is secured to a string of inner tubing and lowered into the outer tubing. The pump stabs into cooperative engagement with the motor. Supplying power to the motor rotates the pump, causing well fluid to flow into the outer tubing to an intake of the pump, which pumps the well fluid through the inner tubing to an upper end of the well. Removing the well fluid allows gas to flow up an annulus surrounding the outer tubing to the upper end of the well.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 8, 2012
    Assignee: Baker Hughes Incorporated
    Inventors: David L. Olson, Josh T. Prather, David B. Dillon, Ray A. Watson
  • Patent number: 8056629
    Abstract: A system is disclosed for supplying water to a desalination plant from a subsurface feedwater supply using one or more slant wells. A method is disclosed for constructing a slant well feedwater supply system for supplying water from a subsurface feedwater supply. A system of angled wells (slant wells) is constructed. The slant wells obtain a desalination feedwater supply from permeable aquifer systems near and/or beneath a saline water source (i.e., an ocean, sea, or salty inland lake). The slant wells induce recharge of the aquifer system through the floor of the ocean, sea, or inland lake due to the hydraulic head difference between the slant well pumping level and the level of the ocean, sea, or lake. As the supply source is relatively constant, the water supply to such a slant well system generally provides a long-term, sustainable water source for a desalination plant.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: November 15, 2011
    Assignee: GEOSCIENCE Support Services, Inc.
    Inventor: Dennis E. Williams
  • Publication number: 20110132593
    Abstract: The present invention relates to a system, apparatus, and method provided to selectively produce petroleum fluid from multiple production zones well. The apparatus comprises a casing running downwardly into the well and a tubing string running in the casing. The upper and lower sealing mechanisms are provided for sealing the annular space between the casing and the tubing string, therefore, dividing the well into upper and lower production zones. Moreover, the invention comprises a bypass gaslift system provided with a tubular member, tubing string, connecting means and side pocket mandrels for injecting lifting gas into the multiple production zones well. The system and apparatus according to this invention can selectively operate to simultaneously or separately produce petroleum fluid from vertical apart multiple zones well.
    Type: Application
    Filed: December 9, 2009
    Publication date: June 9, 2011
    Applicant: PTT EXPLORATION AND PRODUCTION PUBLIC COMPANY LTD.
    Inventors: Pramote Phloi-montri, Chatchai Kongdachudomkul, Thanawee Kreethapon, Pattana Pittrapan, Suwin Sompopsart, Wararit Toempromraj, Amnuay Prayadsup
  • Patent number: 7950465
    Abstract: A system of de-watering boreholes by alternating cycles of aspiration and expulsion based on pneumatic displacement, includes a double hose to be introduced into a borehole. The double hose includes a flexible outer hose and a flexible inner hose separated by an annular space therebetween, the double hose adapted to reach a full depth of the borehole. The outer hose has an outer diameter less than a diameter of the borehole to provide an annular clearance between the borehole and the outer hose. An upper closing element is connected to an upper end of the double hose outside of the borehole, and has two outlets which permit entry and exit of air and water. A lower closing element is attached to the double hose at a lower end thereof, and includes a foot valve, a filter, and a protective element to serve as a battering ram.
    Type: Grant
    Filed: September 13, 2008
    Date of Patent: May 31, 2011
    Inventor: Jorge Lopez Rodriguez
  • Patent number: 7931090
    Abstract: A technique is provided for control of subsea well systems. The technique utilizes a subsea controller coupled to a plurality of subsea well system components to allow localized control of the subsea well system. The subsea controller can be used in a variety of functional applications, such as balancing power distribution to subsea components.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: April 26, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Eric Smedstad, Rory MacKenzie, John Kerr, Randall A. Shepler, Rohitashva Singh
  • Patent number: 7922873
    Abstract: A method and apparatus for desalinating water combined with power generation, wherein a desalination system is used for desalinating coastal seawater and is operationally related to a power generation system, wherein such dual purpose cogeneration facility captures the heat vapor exhausted or a steam turbine generator's condenser is replaced by the desalination plant's heat exchanger enabling such captured heat energy to reduce the energy requirements of the desalination plant, and wherein brine solution being utilized by the desalination plant is circulated from and to the substrata sea water table via supply and return wells.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: April 12, 2011
    Inventors: Girard Charles St. Germain, Richard N. Barnett
  • Publication number: 20110030963
    Abstract: A system for distributing fluid to a plurality of wellbores drilled from a common pad includes at least two fluid conduits extending between the wellbores. The fluid conduits are configured to couple at one end to a fluid pump. At least one remotely operable valve is hydraulically connected to each fluid conduit proximate each wellbore. At least one flow line hydraulically connects each remotely operable valve to each wellbore such that fluid moved through the flow line enters the wellbore. A control unit is disposed proximate the pad and is configured to operate the remotely operable valves.
    Type: Application
    Filed: December 6, 2009
    Publication date: February 10, 2011
    Inventors: Karl Demong, Cleve Graham, Roy Kirby
  • Patent number: 7866387
    Abstract: A down hole apparatus includes a first expandable packer and a second expandable packer, where the first expandable packer longitudinally spaced from the second expandable packer. The apparatus further includes an optional expandable bladder disposed at a longitudinal location between the first expandable packer and the second expandable packer. The expandable bladder inflates to displace drilling fluid between the first and second bladder elements. The down hole apparatus can optionally displace drilling fluid between the first and second bladder elements with another fluid. Fluids and/or slurry can be selectively removed using ports between the first and second expandable packers, and optionally placed in sample chambers, or expelled to the bore hole.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: January 11, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Anthony H. van Zuilekom, Mark A. Proett, Michael T. Pelletier
  • Patent number: 7806669
    Abstract: A pump is disclosed which has a housing with a upper end and a lower end. A conduit is defined through the housing between the upper and the lower ends. The pump includes an impeller within the housing, an inlet from the conduit to the impeller and an outlet from the impeller. Portions of the impeller may be distributed around the conduit. The pump may also include a motor coupled to the impeller. Portions of motor may also be distributed around the conduit. The outlet from the impeller may be independent of the conduit.
    Type: Grant
    Filed: March 25, 2005
    Date of Patent: October 5, 2010
    Assignee: Star Oil Tools Inc.
    Inventor: Marcel Obrejanu
  • Publication number: 20100230089
    Abstract: The claimed invention relates to the downhole systems for extracting various fluids, in particular—for simultaneous extraction out of a number of producing formations. The inventive downhole system comprises a casing pipe and a tubing extending through said casing pipe, between which pipe and tubing formed are separate isolated cavities. Each one of which cavities communicates, via perforations, with a respective producing formation. In each one of the isolated cavities, to the tubing coupled is a hydraulic machine comprised by a motor and pump. The hydraulic machines in different isolated cavities being adapted to be adjusted independently. This system permits simultaneous extraction of fluids out of different producing formations, with independent controlling of such extraction in various formations. The claimed invention also relates to an immersion hydraulic machine used for extracting fluids.
    Type: Application
    Filed: March 16, 2007
    Publication date: September 16, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Jacques Orban
  • Publication number: 20100212905
    Abstract: Methods and systems are disclosed for well completion and/or production, where an aggregating, agglomerating or conglomerating composition is injected into a producible formation, zone or interval thereof to alter an aggregation or zeta potential of formation surfaces and particulate to increase a maximum sand free production rate.
    Type: Application
    Filed: January 20, 2010
    Publication date: August 26, 2010
    Applicant: WEATHERFORD/LAMB, INC.
    Inventors: Ronald van Petegem, Sarkis R. Kakadjian, Frank Zamora
  • Publication number: 20100132933
    Abstract: It is an object of the present invention to provide a deriving technique with economy and technical difficulty improved without depending on fuel consumption for a heat source when methane gas is derived from a methane hydrate layer. Warm water is pumped up by a pump from an underground aquifer present 1000 to 1500 m below the seabed, geothermal energy is caused to flow through a permeable layer below a methane hydrate layer, a dissociation boundary surface of an un-dissociated area of the methane hydrate layer is dissociated to generate methane gas, the methane gas is led into a production well from peripheral areas and through a gas inlet screen and caused to rise so that the methane gas is collected on the sea.
    Type: Application
    Filed: July 14, 2008
    Publication date: June 3, 2010
    Inventors: Masahiro Nakamura, Saburo Goto, Takeyoshi Nozawa, Kozo Ishida
  • Publication number: 20100126729
    Abstract: Systems and methods usable to operate on a plurality of wells through a single main bore are disclosed herein. One or more chamber junctions are provided in fluid communication with one or more conduits within the single main bore. Each chamber junction includes a first orifice communicating with the surface through the main bore, and one or more additional orifices in fluid communication with individual wells of the plurality of wells. Through the chamber junctions, each of the wells can be individually or simultaneously accessed. A bore selection tool having an upper opening and at least one lower opening can be inserted into the chamber junction such that the one or more lower openings align with orifices in the chamber junction, enabling selected individual or multiple wells to be accessed through the bore selection tool while other wells are isolated from the chamber junction.
    Type: Application
    Filed: October 6, 2009
    Publication date: May 27, 2010
    Inventor: Bruce Tunget
  • Publication number: 20090288824
    Abstract: A formation fluid evaluation system (800) interconnected within a tubular string (818) for operation in a wellbore (802) having multiple zones (806, 808, 810). The evaluation system (800) includes a set of straddle packers (820, 822) that is operable to sequentially isolate the multiple zones (806, 808, 810). A test valve (824) is disposed between the straddle packers (820, 822). A fluid unloading assembly (828) is positioned uphole of the straddle packers (820, 822). The fluid unloading assembly (828) is operable to draw fluid (834) from the isolated zone (808) into the tubular string (818) through the test valve (824) in response to the circulation of a drive fluid down the tubular string (818). A formation evaluation instrument (836) is disposed within the tubular string (818) and determines a characteristic of the fluid (834) received from the isolated zone (808).
    Type: Application
    Filed: June 20, 2009
    Publication date: November 26, 2009
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Stewart Hampton Fowler,, JR., Curtis Wendler, Travis Cavender
  • Publication number: 20090260815
    Abstract: A technique enables simultaneous deployment of both treatment equipment and screen assemblies for use during production. The technique utilizes a multi-stage well treatment system deployed in a wellbore to enable treatment of a plurality of sections along the wellbore. Additionally, a plurality of screen assemblies are positioned at the plurality of sections, and each screen assembly comprises a valve to control the flow of fluids through the screen assembly.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 22, 2009
    Inventor: Bradley P. Malone
  • Publication number: 20090260835
    Abstract: A technique utilizes a tool to selectively shift flow control devices in a variety of well applications. In one application, the tool is delivered downhole via coiled tubing to selectively deliver treatment fluid and shift valves in a combined well treatment and sand control well system. The tool also can be used to carry a jetting device that can be employed to deliver a non-solids fluid to a desired region of a wellbore.
    Type: Application
    Filed: April 21, 2008
    Publication date: October 22, 2009
    Inventor: Bradley P. Malone
  • Publication number: 20090183882
    Abstract: A down hole apparatus includes a first expandable packer and a second expandable packer, where the first expandable packer longitudinally spaced from the second expandable packer. The apparatus further includes an optional expandable bladder disposed at a longitudinal location between the first expandable packer and the second expandable packer. The expandable bladder inflates to displace drilling fluid between the first and second bladder elements. The down hole apparatus can optionally displace drilling fluid between the first and second bladder elements with another fluid. Fluids and/or slurry can be selectively removed using ports between the first and second expandable packers, and optionally placed in sample chambers, or expelled to the bore hole.
    Type: Application
    Filed: January 20, 2009
    Publication date: July 23, 2009
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Anthony H. van Zuilekom, Mark A. Proett, Michael T. Pelletier
  • Publication number: 20080302529
    Abstract: A formation fluid evaluation system (100) interconnected within a tubular string (118) for operation in a wellbore (102) having multiple zones (106, 108, 110). The evaluation system (100) includes a pair of straddle packers (120, 122) that isolates one zone (108) of the multiple zones (106, 108, 110), a test valve (124) disposed between the straddle packers (120, 122) and an upper packer (126) positioned uphole of the uppermost zone (106) of the multiple zones (106, 108, 110). A fluid lift assembly (128) is position uphole of the upper packer (126). The fluid lift assembly (128) is operable to draw fluid (134) from the isolated zone (108) into the tubular string (118) through the test valve (124). A formation evaluation instrument (136) is disposed within the tubular string (118) and determines a characteristic of the fluid (134) received from the isolated zone (108).
    Type: Application
    Filed: June 11, 2007
    Publication date: December 11, 2008
    Inventors: Stewart Hampton Fowler, JR., Curtis Wendler, Travis Cavender
  • Publication number: 20080156496
    Abstract: Methods and devices are provided for treating multiple interval well bores. More particularly, an isolation assembly may be used to allow for zonal isolation to allow treatment of selected productive or previously producing intervals in multiple interval well bores. One example of a method for treating a multiple interval well bore includes the steps of: introducing an isolation assembly to a well bore, the isolation assembly comprising a liner, one or more sleeves and a plurality of swellable packers, wherein the sleeves and swellable packers are disposed about the liner; deploying a shifting tool inside the liner, where the sleeves are configured so as to provide open, closed and open to screen positions when actuated by the shifting tool. An open position allows for treatment of the well bore while an open to screen position allows for receiving fluid from the well bore. A closed position re-establishes zonal isolation.
    Type: Application
    Filed: May 10, 2007
    Publication date: July 3, 2008
    Inventor: Loyd East
  • Patent number: 7249634
    Abstract: An apparatus uses at least one injection pump (9) positioned in proximity to an undersea petroleum well (10) to provide hydraulic fluid for hydraulic pumping equipment positioned in the bottom of the well, in order to cause a flow of produced oil. The injection pump (9) is able to suction hydraulic fluid from a tank of hydraulic fluid (8) positioned on the deck of a service unit (40). Alternatively, injection pump (9) is able to utilize water from the sea as a hydraulic fluid. Alternatively, the injection pump (9) may be integral with a Christmas tree manifold (6) or may be installed in an auxiliary well (90) in order that it's external portion does not enter into contact with seawater.
    Type: Grant
    Filed: August 14, 2004
    Date of Patent: July 31, 2007
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventors: Marcelo de Albuquerque Lima Goncalves, Odair Geraldo dos Santos, Alcino Resende De Almeida
  • Patent number: 7207381
    Abstract: A method and apparatus for improving the performance of production-injection wells whereby a pump (35), driven by a hydraulic turbine (32) sharing the same central shaft (33, 34), is run and set in an oil-producing well. The oil enters the annulus of the well from the production zone and is induced into the pump to be forced to the wellhead; the injection water is forced down the wellbore to drive the turbine whereafter the injection water exhausts through the pump to be injected into the underlying aquifer thereby providing additional pressure support to the producing zone.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: April 24, 2007
    Inventor: Allan Sharp
  • Patent number: 7185707
    Abstract: The present invention may be used as an apparatus and method for extracting oil from a hydrocarbon material bearing formation. A well may be positioned in a formation having hydrocarbon material with a well casing extending into the formation that may have a number of apertures formed in the casing wall adjacent to multiple zones of interest in the formation. A hydrostatic separator may have a specific gravity approximately equal to an oil that may be extracted from the formation and may be positioned and anchored in the well casing above and adjacent to an upper level of said formation. An extraction pipe may be disposed interior to the well casing with a lower end positioned above and adjacent a separator top and may have an upper end attached at a well head. The well head may be in fluid communication with an oil storage unit and in communication with a pressure application apparatus.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: March 6, 2007
    Inventor: Robert R. Graham
  • Patent number: 7021373
    Abstract: A system and method for pumping water from a wellbore to a surface location using an improved motorless water pump. The improved motorless water pump is a downhole hydraulic ram pump powered by the renewable energy source, groundwater. As water falls down a wellbore from an upper strata to a lower strata, the conversion of the water's momentum to energy is used to compress air captured in the ram's pressure chamber. The compressed air contained in the pressure chamber pushes down on the water captured in the pressure chamber causing the water to exit the pressure chamber through an outlet and into tubing. The water in the tubing is responsive to the pressure in the chamber rising to the surface.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: April 4, 2006
    Inventor: William David Hardgrave
  • Patent number: 6928864
    Abstract: The present invention provides a tool assembly for use in field applications to monitor at least one condition in a well or other hole. The tool assembly may include a computing unit for directing operation of the tool assembly and may be sized to be operable in a hole having a diameter of 1 inch, and in some cases even smaller. In one aspect, the tool assembly is designed to significantly conserve power. Sensor readings may be taken at different schedules to conserve power when frequent readings are not required. Also, internal electronics of the tool assembly can be operated at a low voltage. In one aspect, the tool assembly is assemblable by simple rotatable engagement of the components, with electrical interconnections being made automatically by the rotatable engagement without keying of components. In another aspect, the tool assembly is networkable with other like tool assemblies and monitorable from a central location.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: August 16, 2005
    Assignee: In-Situ, Inc.
    Inventors: Kent D. Henry, Zachary A. Gray, Mark A. Watson, Stanley B. Smith, Korey L. Kreitman
  • Publication number: 20030201104
    Abstract: A method and system for the combined underground storage and production of petroleum. A wellbore is drilled such that the surface is in fluid communication with an oil bearing and a salt bearing formation. Salt is leached from the salt bearing formation to form a cavern. The oil bearing formation is placed in condition for production. The pressure in the salt bearing formation is maintained below the pressure in the oil bearing formation and oil is collected in the cavern. Periodically, oil is displaced from the cavern to the surface. The system includes a wellbore connecting the surface, an oil bearing formation and a cavern in fluid communication, a check valve is placed within the wellbore to permit the one way flow of oil from the oil bearing formation to the cavern. A wellhead tree seals the wellbore through which passes a conduit to inject gas into the wellbore. Also passing through the welltree is a conduct which extends into the cavern through which oil may be displaced.
    Type: Application
    Filed: April 25, 2002
    Publication date: October 30, 2003
    Applicant: CONOCO INC.,
    Inventors: Gary J. Bergman, William R. Landrum
  • Patent number: 6422318
    Abstract: A horizontal well system, in accordance with the principles of the invention, includes a porous casing member having an interior space, a first end, and a second end, with at least a portion of the porous casing member being positioned substantially horizontally within an aquifer. This horizontal well system further includes a first casing member and a second casing member, with each of the first and second casing members having an interior space, an outer end, and an inner end. The inner end of the first casing member is connected to the first end of the porous casing member, with the first casing member extending toward the ground surface. The inner end of the second casing member is connected to the second end of the porous casing member, with the second casing member extending toward the ground surface.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: July 23, 2002
    Assignee: Scioto County Regional Water District #1
    Inventor: Donald L. Rider
  • Patent number: 6415864
    Abstract: A system for reservoir control. The system allows segregated production of fluids, e.g. water and oil, to control the fluid-fluid interface. Downhole sensors are utilized in providing data about the location of the interface. This permits the proactive monitoring and control of the interface prior to unwanted intermingling of fluids, e.g. oil and water, during production.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: July 9, 2002
    Assignee: Schlumberger Technology Corporation
    Inventors: Terizhandur S. Ramakrishnan, Brindesh Dhruva, Raj Kumar Michael Thambynayagam, Min-Yi Chen, Peter A. Goode, Rod F. Nelson
  • Patent number: 6412555
    Abstract: System and method for controlling fluid flows in one or more oil and/or gas wells in a geological formation, the wells each comprising a production tube, the formation containing a water-containing volume with a higher water level, comprising: one or more measuring devices, each mounted in relation to a chosen zone of a well for measuring the distance to the water level in the zone, one or more valve devices comprised in the production tubes for regulating the fluid flow from the surrounding formation to the production tube, one or more control units connected to each of the valves for regulating then on the basis of the measured distance or distances.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: July 2, 2002
    Assignee: Kongsberg Offshore A.S.
    Inventors: Vidar Sten-Halvorsen, Einar Stølen
  • Publication number: 20020070023
    Abstract: The present invention provides an apparatus for completing and producing from multiple mineral production zones, independently and in several combinations. This is made possible only through the use of pressure-actuated circulating (PAC) valves and pressure-actuated device (PAD) valves in combination with isolation valves. Also disclosed are methods of completing and producing from multiple mineral zones.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 13, 2002
    Inventors: Dewayne Turner, Marvin Bryce Traweek, Richard J. Ross
  • Publication number: 20020060075
    Abstract: A method and apparatus for use with two or more hydraulic conduits deployed downhole reduces a number of penetrations required through a well bulkhead for a given number of fluid paths extending therethrough. In a described embodiment, a fluid conductor includes multiple fluid paths extending therein. The fluid conductor is installed in an aperture formed through a bulkhead. Couplings are connected on opposite sides of the bulkhead to opposite ends of the fluid conductor. Multiple hydraulic lines are connected to each of the couplings.
    Type: Application
    Filed: October 12, 2001
    Publication date: May 23, 2002
    Inventors: Daniel G. Purkis, Michael A. Reid, Stephen Reid
  • Patent number: 6343656
    Abstract: A method for optimizing production from a rod-pumping system includes the steps of providing a well having a rod-pumping system for pumping a fluid from a downhole location of the well to a surface location of the well; providing a mathematical model for determining a dynagraph relationship for the well from power consumption of the rod pumping system; measuring power consumption per cycle of the rod pumping system; determining a downhole dynagraph relationship from the power consumption per cycle and the model; measuring real time values of wellhead pressure and preferably wellhead temperature; and determining an optimum operating condition for the rod-pumping system from the downhole dynagraph relationship and the real time values.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: February 5, 2002
    Assignee: Intevep, S.A.
    Inventors: Manuel Vazquez, Jose Fernandes
  • Patent number: 6325143
    Abstract: A dual submergible pumping system permits the production and/or injection of fluids from or into separate zones within a narrowly confined wellbore without commingling of fluids. The system includes at least first and second electric submergible pumping systems. Typically, the design allows the electric submergible pumping systems to be arranged generally axially within a wellbore. Each system, however, is able to produce or inject fluids along a fluid flow path that is isolated from the fluid flow path of the other electric submergible pumping system.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: December 4, 2001
    Assignee: Camco International, Inc.
    Inventor: Kevin T. Scarsdale
  • Publication number: 20010046414
    Abstract: In the present invention, a plurality of conduits are employed for introducing Fenton's reagent reaction components separately into a site for treating a target contaminant. The conduits are disposed in a subsurface borehole which can be positioned, prepared and sealed as in the prior art. At the surface-accessible end of each conduit, an injection head is provided. At the subsurface end of each conduit, various means are provided for allowing the components to contact one another to form Fenton's reagent and for delivering the reagent to the contamination site.
    Type: Application
    Filed: February 21, 2001
    Publication date: November 29, 2001
    Inventor: Lawrence John Kinsman
  • Patent number: 6279651
    Abstract: A tool and method for managing fluid flow in a well use flow control and monitoring functions. A particular tool provides valve and metering functions combined with electrical generator and pump functions. Two of these tools can be used such that one generates electricity downhole to power the other tool to operate as a pump or other flow control. A method of managing fluid flow in a well includes operating the tool in either a generator mode or a pump mode. The tool, which is a flow control device, has a body in which an opening is defined between an annulus outside the body and a flow channel inside. The tool also has a flow control body, a rotor and electromagnetic members. A method includes moving the flow control body, the rotor, and the electromagnetic members together to selectively block or unblock the opening. In a particular version of this method, this movement is axially within the body of the flow control device.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: August 28, 2001
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Kenneth L. Schwendemann, Darrin N. Towers