Combined Liquid And Gaseous Fluid Patents (Class 175/69)
  • Patent number: 11319755
    Abstract: An arrangement and a method for installing a casing in a borehole are described. The arrangement includes a casing, a boring pipe, which is adapted within the casing, and the boring pipe includes flow channels for compressed air and a flushing medium. The flushing medium flow channel is arranged to lead the flushing medium to the bottom of the borehole. The arrangement also includes a percussion hammer, which includes a compressed air operated percussion piston adapted in a cylinder of the percussion hammer, as well as hole drilling means for drilling a hole for the casing. The flushing medium flow channel is adapted to bypass the percussion piston or which flushing medium flow channel is adapted to pass through the percussion piston, and in which arrangement the drilling means additionally includes splines transmitting a rotating motion and adapted to conduct the compressed air that used the percussion piston through the splines.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: May 3, 2022
    Assignee: Mincon Nordic Oy
    Inventor: Markku Keskiniva
  • Patent number: 11299944
    Abstract: An embodiment of a fluid bypass apparatus includes an axially elongated body configured to be deployed in a borehole in an earth formation, the body including a pilot conduit that allows fluid to flow through the body and a bypass conduit extending from the pilot conduit to an exterior of the body and defining a fluid flow path from the primary conduit to the exterior of the body, The apparatus also includes a modular valve insert housed within the bypass conduit, the valve insert being removable and replaceable, the modular valve insert configured to obstruct the fluid flow path and configured to automatically open in response to a pressure or flow rate through the primary conduit meeting or exceeding a selected threshold pressure or flow rate.
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: April 12, 2022
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventor: William Hered
  • Patent number: 11191276
    Abstract: The present invention relates to a solid formulation of soap stick type comprising a primary surfactant, at least one binding agent and at least one dispersant that may especially be an amphoteric surfactant, optionally with additives. The present invention also relates to uses of said formulation, especially for oilfield applications, e.g. for gas well deliquification applications.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: December 7, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Christopher Raymond Jones, Kevan Hatchman, Alan Christopher Fellows
  • Patent number: 11053779
    Abstract: A hydrate solid-state fluidization mining method and system under an underbalanced reverse circulation condition are used for solid-state fluidization mining on a non-rock-forming weak-cementation natural gas hydrate layer in the ocean. Equipment includes a ground equipment system and an underwater equipment system. The construction procedure includes an earlier-stage construction process, pilot hole drilling construction process, reverse circulation jet fragmentation process, underbalanced reverse circulation fragment recovery process and silt backfilling process. Natural gas hydrates in the seafloor are mined through an underbalanced reverse circulation method. Problems such as shaft safety, production control and environmental risks faced by conventional natural gas hydrate mining methods such as depressurization, heat injection, agent injection and replacement are effectively solved.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: July 6, 2021
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Jinzhou Zhao, Na Wei, Haitao Li, Liehui Zhang, Shouwei Zhou, Qingping Li, Wantong Sun
  • Patent number: 10954731
    Abstract: A method for conducting a wellbore operation includes drilling a wellbore through one or more hydrocarbon bearing subterranean formations with a drill bit arranged at an end of a drill string, wherein an annulus is defined between the drill string and an inner wall of the wellbore. A foam is generated with a foam generator of an annular injection system in communication with the annulus, and the foam is introduced into the annulus with the annular injection system.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: March 23, 2021
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Gregory King, Kaustubh S. Kulkarni, Sai S. Rao, Andrey A. Troshko
  • Patent number: 9404359
    Abstract: A dynamically controlled drill string includes a communications sub, a circulation sub and a measurement sub. The communications sub is operable to receive a wireless signals and retransmit the signals wirelessly. The measurement sub is operable to detect a downhole condition and transmit wirelessly a corresponding data signal. The circulation sub is operable to selectively permit fluid communication between the interior fluid conduit and the exterior of the dynamically controlled drill string at the circulation sub. The circulation sub is operable to selectively permit fluid communication through the internal fluid conduit at the circulation sub. A method for using the dynamically controlled drill string in a well bore includes the steps of introducing the dynamically controlled drill string into the well bore and introducing fluid operable to modify a detected downhole conditions into the well bore.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 2, 2016
    Assignee: Saudi Arabian Oil Company
    Inventor: Scott David Fraser
  • Patent number: 9316052
    Abstract: A ground drill system (10) has a drill string 14 which forms first and second mutually isolated fluid paths (16 and 18) respectively. The drill string (14) has an up hole end (20) coupled to a dual circulation rotation head (22) and a down hole end (24) which is coupled to a drilling tool (12). The drilling tool (12) is operated by the flow of fluid delivered through the first flow path (16). A second fluid outlet (26) is provided intermediate the up hole end (20) and the drilling tool (12). The outlet (26) is in fluid communication with the second fluid flow path (18) and located a constant or fixed distance from the drilling toll (2). The second fluid outlet (26) discharges a flushing fluid flowing through the flushing flow path (18) into a hole being drilled by the drilling system (10). The rotation head (22) provides torque to the drill string (14) and thus the drilling tool (12).
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: April 19, 2016
    Assignee: Strada Design Limited
    Inventors: Ian Speer, Warren Strange
  • Patent number: 9279301
    Abstract: A method for modifying a return fluid in a wellbore comprises disposing at least one controllable flow restrictor along a drill string in the wellbore. At least one parameter of interest is determined at at least one location along an annulus in the wellbore. Controllably actuating the at least one flow restrictor to modify a local property of a return fluid in the annulus based at least in part on the measured parameter of interest.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: March 8, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James Randolph Lovorn, Derrick Winston Lewis, Daniel David Gleitman, Michael John Strachan, Clive D Menezes
  • Patent number: 8978785
    Abstract: A downhole tool to separate liquid from a drilling fluid includes a multi-vein cyclonic separator disposed within a housing, the cyclonic separator including at least two veins extending in a spiral along the length of the cyclonic separator, holes in the housing positioned adjacent to edges of veins of the cyclonic separator to allow liquid accelerated from the drilling fluid to exit the housing, and wherein the cyclonic separator is configured to provide high centrifugal forces to the drilling fluid downhole.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: March 17, 2015
    Assignee: Sandvik Mining and Construction
    Inventor: Vincent Wayne Shotton
  • Patent number: 8857540
    Abstract: An apparatus for releasing gas pressure from a drill string includes a tubular housing having a circumferential sidewall, an axis, a first end, a second end and a central passage extending between the first end and the second end. A pressure member is positioned in the central passage along the axis of the housing. The pressure member is movable from a first position retracted within the housing to a second position extending past the second end of the housing. An actuator is provided to move the pressure member from the first position to the second position, where the pressure member exerts a force to move a valve member of a float valve to an open position, thereby allowing gas trapped in the drill string to flow through the central passage.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: October 14, 2014
    Inventor: Adam Paul Blake
  • Publication number: 20140262529
    Abstract: Gas-core microstructures, such as microbubbles, may be used in drilling and completion operations in the exploration and production of hydrocarbon fluids (e.g. oil and gas) from subterranean formations. The gas-core microstructures are dispersed in a base fluid such as water, oil or emulsions of water and oil, in accordance with the specific performance needs. Applications for fluids containing these gas-core microstructures include, but are not necessarily limited to, use as a spacers to control trapped annular pressure, use as low density drilling fluids, use as dual gradient drilling fluids and the delivery of chemicals downhole.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: Lirio Quintero, Jonathan J. Brege
  • Patent number: 8770287
    Abstract: A method of servicing a wellbore in a subterranean formation comprising placing a foamed wellbore servicing fluid into a wellbore; flowing the foamed wellbore servicing fluid back to the wellbore surface; and contacting the foamed wellbore servicing fluid with an immobilized defoaming agent structure comprising an inert substrate and a defoamer. A system comprising a foamed wellbore servicing fluid in contact with a de-foaming structure, wherein the de-foaming structure comprises a defoamer covalently bonded to an inert substrate.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 8, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Kenneth W. Pober
  • Patent number: 8714283
    Abstract: A new multi-purpose foaming composition having applications in oil field application, industrial applications, waste management applications, or other applications that can be benefited by a foam, is disclosed, where the composition includes a surfactant, a sulfur scavenger and optionally an additive, where the sulfur scavenger and/or additive improve foam characteristics and/or the foam improves an activity of the sulfur scavenger and/or the additives. Method for using and making the foaming compositions are also disclosed, especially, coiled and capillary coiled tubing downhole applications.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: May 6, 2014
    Assignee: Clearwater International, LLC
    Inventors: Larry W. Gatlin, Jack Curr, Kevin Smith, Steve Turk
  • Patent number: 8517122
    Abstract: A drill and a separator apparatus and a method of prolonging bearing life are described, the separator apparatus being suitable for separating an air/water mixture into discrete air and water streams during drilling of a blast hole. The separator apparatus includes a separator body which is adapted to be installed at a distal or lower region of a drill string and when installed at the distal or lower region forms one or more separation chambers or reservoirs, each separation chamber or reservoir comprising an inlet adapted to receive the air/water mixture, a first outlet in fluid communication with a drill bit for releasing air thereto and a second outlet in fluid communication with a wall of the blast hole and disposed in the distal or lower region of the drill string to release water separated from the air/water mixture in a region adjacent the drill bit.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: August 27, 2013
    Assignee: Cardinal Trading Company Pty Ltd.
    Inventor: Jacob Garth Lowry
  • Patent number: 8469119
    Abstract: According to one embodiment, a system for accessing a subterranean zone from the surface includes a well bore extending from the surface to the subterranean zone, and a well bore pattern connected to the junction and operable to drain fluid from a region of the subterranean zone to the junction.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: June 25, 2013
    Assignee: Vitruvian Exploration, LLC
    Inventor: Joseph Alan Zupanich
  • Patent number: 8459376
    Abstract: A system for drilling a well bore with an under-balanced hydrostatic pressure. The system includes a tubular member containing a first port, a compression member disposed about the outer portion of the tubular member and having an internal sliding mandrel extending therefrom with a second port, an external sliding sleeve having a third port and being in contact with the internal sliding mandrel and operatively associated with the internal sliding mandrel, and a compressible seal disposed about the external sliding mandrel that is responsive to a longitudinal weight transferred to the compression member. In a closed position the first, second and third port are misaligned and in an open position the first, second and third ports are aligned.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: June 11, 2013
    Inventor: Danny T. Williams
  • Patent number: 8371399
    Abstract: According to one embodiment, a system for accessing a subterranean zone from the surface includes a well bore extending from the surface to the subterranean zone, and a well bore pattern connected to the junction and operable to drain fluid from a region of the subterranean zone to the junction.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 12, 2013
    Assignee: Vitruvian Exploration, LLC
    Inventor: Joseph Alan Zupanick
  • Patent number: 8272456
    Abstract: A system for drilling a well having a wellbore includes a first pipe string positioned in the wellbore with a first annulus being present between the first pipe string and the wellbore. A second pipe string, smaller in diameter than the first pipe string, is positioned within the first pipe string to form a second annulus between the first pipe string and the second pipe string. The second pipe string is configured to be attached to a drill bit. A first rotator is operably associated with the first pipe string to rotate the first pipe string in a first direction at a first speed, and a second rotator is operably associated with the second pipe string to rotate the second pipe string in a second direction at a second speed.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: September 25, 2012
    Assignee: Pine Trees Gas, LLC
    Inventor: Joseph A. Zupanick
  • Patent number: 8176981
    Abstract: A composition comprising a nonionic fluorinated polymeric surfactant having a weight average molecular weight of least 100,000 grams per mole, the nonionic fluorinated polymeric surfactant comprising: divalent units independently represented by formula (I): in a range from 30% to 65% by weight, based on the total weight of the nonionic fluorinated polymeric surfactant; and divalent units independently represented by formula (II): in a range from 70% to 35% by weight, based on the total weight of the nonionic fluorinated polymeric surfactant. Rf is a perfluoroalkyl group having from 3 to 4 carbon atoms; R and R2 are each independently hydrogen or alkyl of 1 to 4 carbon atoms; R1 is alkyl of 16 to 24 carbon atoms; and n is an integer from 2 to 11. Foams comprising the nonionic fluorinated polymeric surfactant and a liquid hydrocarbon and methods of making and using the foams are also disclosed.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: May 15, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Patricia M. Savu, Michael J. Sierakowski
  • Publication number: 20120080195
    Abstract: The present invention relates to a drilling composition comprising: I) an organic phase comprising components: i. from about 20 wt. % to about 99.999 wt. %, based on the total weight of components i. and ii., of at least one linear or branched, cyclic or non-cyclic, saturated hydrocarbon; ii. from about 0.001 wt. % to about 25 wt. %, based on the total weight of components i. and ii., of at least one ester; II) from 0 to about 50 wt. %, based on the total weight of the composition, of water or aqueous phase; III) from 0 to about 60 wt. %, based on the total weight of the composition, of at least one additive, wherein the sum of the weight components I) to III) is 100 wt. %, to a process for preparation of a drilling composition, to uses of a drilling composition, to a drilling system, to a process for making a borehole, to a process for conveying cuttings, to a process for treating a drill head, to a process for production of at least one of oil and gas.
    Type: Application
    Filed: March 15, 2010
    Publication date: April 5, 2012
    Applicant: COGNIS OLEOCHEMICALS GMBH
    Inventors: Michael Fefer, Jun Liu, Heinz Mueller, Nadja Herzog, Diana Maeker
  • Patent number: 8141661
    Abstract: New oil-based foam drilling fluids for oil and/or gas wells include a base oil, a foaming agent and a polymer including at least one aromatic olefin monomer and at least one diene monomer. The polymer improves foam properties rendering a foam stable at temperatures at or above 350° F.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: March 27, 2012
    Assignee: Clearwater International, LLC
    Inventors: Sarkis R. Kakadjian, Olusegun M. Falana, Edward Marshall, Michael DiBiasio, Frank Zamora
  • Patent number: 8127866
    Abstract: The present invention is an air injection collar for use in the drilling industry that is used to reduce the weight of the column of returning drilling mud and debris without causing unnecessary frictional wear on the drill pipe. The invention is a unique sleeve that is coupled to a drill casing that includes an input port for receiving the pressurized air or other fluid from the surface, an annular plenum extending around the drill casing, and a series of openings in the plenum leading to the inside of the drill casing. These openings disperse the pressurized air or other fluid into the upflowing mud around the central drill pipe so that it is not concentrated in one place, especially the center of the casing, where it could cause frictional damage to the drill pipe.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: March 6, 2012
    Inventor: Paul G. Anthony
  • Patent number: 8047305
    Abstract: A system for forming a subterranean wellbore may include a pump and an additive supply. The pump pumps a drilling fluid into the wellbore while also generating a pressure differential that draws an additive across a supply line connected to the additive supply. The drilling fluid may be a gas or a liquid. A method for forming a wellbore may include drilling the wellbore, circulating a drilling fluid in the wellbore using a pump; and supplying an additive to the drilling fluid by flowing the additive across a supply line using a pressure differential generated by the pump. The pump may generate a vacuum pressure at a supply line outlet and/or create a pressure differential in the supply line. The flow of additive across the supply line may be regulated and/or stopped when the pump is not operating.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 1, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: William M. Dye, Nels A. Hansen, John B. Trenery, Jr.
  • Patent number: 7971659
    Abstract: A new multi-purpose foaming composition having applications in oil field application, industrial applications, waste management applications, or other applications that can be benefited by a foam, is disclosed, where the composition includes a surfactant, a sulfur scavenger and optionally an additive, where the sulfur scavenger and/or additive improve foam characteristics and/or the foam improves an activity of the sulfur scavenger and/or the additives. Method for using and making the foaming compositions are also disclosed, especially, coiled and capillary coiled tubing downhole applications.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: July 5, 2011
    Assignee: Clearwater International, LLC
    Inventors: Larry W. Gatlin, Jack Curr, Kevin Smith, Steve Turk
  • Patent number: 7964537
    Abstract: An air drilling misting fluid is provided and the fluid comprises: a continuous liquid phase solution comprising syrup, syrup solids and a first liquid medium, the syrup and syrup solids are derived from a group consisting essentially of agave syrup, barley syrup, sugar syrup, beets syrup, birch syrup, rice syrup, cane syrup, chocolate syrup, coconut syrup, corn syrup, date syrup, fruit syrup, golden syrup, high fructose corn syrup, inverted sugar syrup, karo syrup, citrus fruit syrup, maple syrup, molasses, Muscavado syrup, palm syrup, rice syrup, sorghum syrup, Turbinado syrup, vanilla syrup and mixtures and blends thereof; and a second liquid medium.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: June 21, 2011
    Inventors: Jerry Rayborn, Sr., Dan M. DeLaRosa
  • Patent number: 7886849
    Abstract: A system and method for drilling a well bore with an under-balanced hydrostatic pressure. The system used in the method includes a tubular member containing a first port, a compression member disposed about the outer portion of the tubular member and having an internal sliding mandrel extending therefrom with a second port, an external sliding sleeve having a third port and being in contact with the internal sliding mandrel and operatively associated with the internal sliding mandrel, and a compressible seal disposed about the external sliding mandrel that is responsive to a longitudinal weight transferred to the compression member. In a closed position the first, second and third port are misaligned and in an open position the first, second and third ports are aligned.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: February 15, 2011
    Inventor: Danny T. Williams
  • Patent number: 7874381
    Abstract: A wellbore servicing method comprising supplying a deicing fluid to a pressurized pneumatic line on a drilling rig, whereby the deicing fluid retards the formation of ice within the pressurized pneumatic line. A wellbore servicing apparatus comprising a pump, a sight glass container coupled to the pump, and a storage tank coupled to the sight glass container and the pump. A wellbore servicing apparatus comprising an air regulator configured to couple to a pneumatic line coupled to an air compressor, a pneumatic pump coupled to the air regulator and configured to couple to the pneumatic line, a sight glass container coupled to the pneumatic pump, and a storage tank coupled to the sight glass container and the pneumatic pump.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: January 25, 2011
    Assignee: Skyhawk Chemicals, Inc.
    Inventor: Stephen Glenn Shaw
  • Patent number: 7842650
    Abstract: The invention relates to a composition for producing foams, in particular for mineral oil and natural gas production.
    Type: Grant
    Filed: July 17, 2007
    Date of Patent: November 30, 2010
    Assignee: BASF Aktiengesellschaft
    Inventor: Ulrich Steinbrenner
  • Publication number: 20100258353
    Abstract: A drill and a separator apparatus and a method of prolonging bearing life are described, the separator apparatus being suitable for separating an air/water mixture into discrete air and water streams during drilling of a blast hole. The separator apparatus includes a separator body which is adapted to be installed at a distal or lower region of a drill string and when installed at the distal or lower region forms one or more separation chambers or reservoirs, each separation chamber or reservoir comprising an inlet adapted to receive the air/water mixture, a first outlet in fluid communication with a drill bit for releasing air thereto and a second outlet in fluid communication with a wall of the blast hole and disposed in the distal or lower region of the drill string to release water separated from the air/water mixture in a region adjacent the drill bit.
    Type: Application
    Filed: June 4, 2008
    Publication date: October 14, 2010
    Inventor: Jacob Garth Lowry
  • Patent number: 7767628
    Abstract: A hydrocarbon drilling fluid system is disclosed including a hydrocarbon fluid and a foaming composition, where the foaming composition includes a polymer, a gelling agent and its cross-linking agent, an optional foaming agent, or mixtures or combinations thereof. Uses of this drilling fluid system in a variety of downhole application are also disclosed.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: August 3, 2010
    Assignee: Clearwater International, LLC
    Inventors: David P. Kippie, Larry W. Gatlin
  • Patent number: 7718581
    Abstract: A method of reducing wear in a cutting head of a tunnel boring machine, by means of the addition at the cutting head of a foamed aqueous liquid composition, which comprises a foaming agent and a lubricant, the lubricant being selected from the group consisting of high molecular weight polyethylene oxides and bentonite. Preferred foaming agents are anionic and nonionic surfactants. Wear rates of cutting elements of TBMs boring in hard rock are considerably reduced. A wear-reducing foamable concentrate is also described.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: May 18, 2010
    Assignee: Construction Research & Technology GmbH
    Inventors: Herbert Egli, Peter Ellenberger
  • Patent number: 7665522
    Abstract: The present invention relates to aqueous oilfield treatment fluids containing a gas component and fibers, wherein the fluids may further include a viscosifying agent and/or proppant. The fluids have good proppant suspension and transport properties as well as excellent gas phase stability. Use of fluids comprising an aqueous medium, a gas component, viscosifying agent, and fibers for hydraulically fracturing a subterranean formation, cleanup operations, and gravel packing a wellbore, are also disclosed.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: February 23, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Philip F. Sullivan, Christopher N. Fredd
  • Publication number: 20100000795
    Abstract: New oil-based foam drilling fluids for oil and/or gas wells are disclose as well as methods of making and using same. The new oil-based drilling fluids including a base oil, a foaming agent and a polymer including at least one aromatic olefin monomer and at least one diene monomer, where the polymer improves foam properties rendering a foam stable at temperatures at or above 300° F. and even at temperatures at or above 350° F.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 7, 2010
    Applicant: CLEARWATER INTERNATIONAL, LLC
    Inventors: Sarkis R. Kakadjian, Olusegun M. Falana, Edward Marshall, Michael DiBiasio, Frank Zamora
  • Publication number: 20090139771
    Abstract: Light weight drilling fluids are prepared by passing a gas and the drilling fluid through a cavitation device. Bubbles are finely divided into microbubbles, thereby reducing the density of the fluid. Low HLB surfactants, natural polymers, and ionic-charged polymers may be added to enhance the stability of the microbubble suspension.
    Type: Application
    Filed: November 26, 2008
    Publication date: June 4, 2009
    Inventors: Kevin W. Smith, Taylor C. Green
  • Patent number: 7516803
    Abstract: The present invention is an air injection collar for use in the drilling industry that is used to reduce the weight of the column of returning drilling mud and debris without causing unnecessary frictional wear on the drill pipe. The invention is a unique sleeve that is coupled to a drill casing that includes an input port for receiving the pressurized air or other fluid from the surface, an annular plenum extending around the drill casing, and a series of openings in the plenum leading to the inside of the drill casing. These openings disperse the pressurized air or other fluid into the upflowing mud around the central drill pipe so that it is not concentrated in one place, especially the center of the casing, where it could cause frictional damage to the drill pipe.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: April 14, 2009
    Inventor: Paul G Anthony
  • Patent number: 7178592
    Abstract: The present invention provides apparatus and methods for handling fluids returning from a well. The fluids are introduced into a separator and a separated gas stream is recovered or recycled. The gas stream may comprise more than one phase. The separated gas stream is urged through a multiphase pump before it is recovered. Alternatively, the return fluids may pass through a multiphase pump before it is introduced into the separator.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: February 20, 2007
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Gregory H. Chitty, Jeffrey Charles Saponja, David Graham Hosie
  • Patent number: 7111695
    Abstract: The invention relates to a method for horizontal ground drilling, in particular for rock drilling, by means of a ground drilling apparatus which can be driven forward in rotation and percussively, the apparatus having compressed air and drilling medium applied to it alternately or simultaneously, and the compressed air and the drilling medium being supplied via one channel.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: September 26, 2006
    Assignee: Tracto-Technik GmbH
    Inventor: Franz-Josef Puttmann
  • Patent number: 7108066
    Abstract: The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid, and a portion of variable pressure weighting material particles.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: September 19, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Dale E. Jamison
  • Patent number: 7077219
    Abstract: Methods in which temperature is used to control the foaming and/or defoaming of foamed treatment fluids comprising an aqueous liquid, an ionic foaming surfactant, and a gas are provided. A method of treating at least a portion of a subterranean formation is provided, the method comprising: providing a treatment fluid having a foam transition temperature, the treatment fluid comprising an aqueous liquid, and an ionic foaming surfactant; foaming the treatment fluid to form a foamed treatment fluid; circulating the foamed treatment fluid in a well bore penetrating the subterranean formation; and defoaming at least a substantial portion of the foamed treatment fluid, the defoaming comprising lowering the temperature of the foamed treatment fluid to about at or below the foam transition temperature.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: July 18, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Gary P. Funkhouser, Bobby J. King
  • Patent number: 7055628
    Abstract: A well drilling method comprises removing the drilling cuttings using an aqueous drilling fluid such as a foam including a foaming agent which includes at least one mono-(aliphatic hydrocarbyl) phosphate ester. More specifically, the drilling fluid takes the form of a potassium and/or alkanolamine and/or alkylalkanolamine salt, the foam also comprising a foam stabiliser.
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: June 6, 2006
    Assignees: Institut Francais du Petrole, Imperial Chemical Industries Plc
    Inventors: Neil Grainger, Benjamin Herzhaft, Mark White, Annie Audibert Hayet
  • Patent number: 7040419
    Abstract: The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed well composition. The process utilizes air to foam the composition after the air has been treated to lower the oxygen content below that concentration necessary to support combustion. Additionally, the current invention provides a process for completing and/or treating a well bore using a foamed composition wherein the foam is generated with reduced oxygen content air. Finally, a preferred embodiment of the invention provides a foamed cement composition wherein the gaseous portion of the composition is air having a reduced oxygen content.
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: May 9, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Richard L. Middaugh, James E. Griffith
  • Patent number: 7025154
    Abstract: A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizontally offset from the substantially vertical well bore at the surface and intersects the substantially vertical well bore at a junction proximate the subterranean zone. The method includes drilling a drainage bore from the junction into the subterranean zone and pumping a drilling fluid through the drill string when drilling the drainage bore. The method also includes providing fluid down the substantially vertical well bore through a tubing. A fluid mixture returns up the substantially vertical well bore outside of the tubing. The fluid mixture comprises the drilling fluid after the drilling fluid exits the drill string.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: April 11, 2006
    Assignee: CDX Gas, LLC
    Inventor: Joseph A. Zupanick
  • Patent number: 6817427
    Abstract: This invention aims to provide a gas-hydrate extracting device and method whereby a high-performance jet fluid is injected from a nozzle at the tip of an extraction pipe inserted into a gas-hydrate stratum, and whereby said jet fluid breaks said stratum so as to form a gas-hydrate mixed fluid that is transferred to surface of the earth, and whereby the void resulting from the removal of said gas hydrate is filled with the components of said high-performance jet fluid and a void-refilling fluid.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: November 16, 2004
    Assignees: Tobishima Corporation, Fuji Research Institute Corporation
    Inventors: Katsuya Matsuo, Sosuke Kurosaka, Yutaka Yanagimori, Shuntaro Asano, Junji Shinoda
  • Patent number: 6802673
    Abstract: A process of boring a tunnel using an earth-pressure balance shield boring tunnelling machine having a cutting head, an excavation chamber for soil removed by boring and conveying means for removal of said soil from the excavation chamber; wherein there is injected into a stratum being bored at the cutting head a foamed aqueous solution, characterized in that (a) the aqueous solution contains two essential components which are (i) a sulphate- or sulphonate-containing anionic susfactant, and (ii) &bgr;-naphthalene sulphonate-formaldehyde condensate; and in that (b) there is applied to the soil removed by boring in at least one of the excavation chamber and the conveyor a second aqueous solution containing essentially a high molecular weight polyethylene oxide and optionally a sulphate- or sulphonate-containing anionic surfactant. The process allows easy removal of soil from the cutting head to the excavation chamber and from the excavation chamber out of the machine.
    Type: Grant
    Filed: May 3, 2002
    Date of Patent: October 12, 2004
    Assignee: MBT Holding AG
    Inventor: Peter Ellenberger
  • Patent number: 6745857
    Abstract: A method of drilling sub-sea oil and gas production wells in which a liquid hydrocarbon substance, such as a natural gas liquid, is injected into the drilling mud supplied to the well in order to reduce the mud density. The method of the present invention enables reduction and control of the hydraulic pressure of the drilling mud while drilling production wells in deep water, thereby to require fewer casing runs which eventually yields better oil productivity.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: June 8, 2004
    Assignee: National Oilwell Norway AS
    Inventor: Jon G. Gjedebo
  • Patent number: 6722436
    Abstract: A method and apparatus for controlling the operation of an internal combustion engine to reduce the presence of free oxygen in the exhaust gas of the engine. The method and apparatus provides for the internal combustion engine to be operated with a fuel-to-air ratio in excess of the stoichiometric ratio such that the exhaust gas from the internal combustion engine is devoid or substantially devoid of all free oxygen and excess unburned hydrocarbon fuel is expelled with the exhaust gas from the engine.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: April 20, 2004
    Assignee: Precision Drilling Technology Services Group Inc.
    Inventor: Ross Michael Krill
  • Patent number: 6715553
    Abstract: Improved methods of generating gas in and foaming aqueous well fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining with an alkaline aqueous well fluid one or more gas generating chemicals and a mixture of foaming and foaming stabilizing surfactants so that the gas generating chemical or chemicals react with the alkaline aqueous well fluid and gas and foam are formed in the well fluid while it is being pumped, and then pumping the well fluid into the subterranean zone.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: April 6, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: B. Raghava Reddy, Krishna M. Ravi, James E. Griffith, Frank Zamora, Karen Luke, John L. Dennis, Jr., Ricky A. Cox
  • Publication number: 20040055787
    Abstract: A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizontally offset from the substantially vertical well bore at the surface and intersects the substantially vertical well bore at a junction proximate the subterranean zone. The method includes drilling a drainage bore from the junction into the subterranean zone and pumping a drilling fluid through the drill string when drilling the drainage bore. The method also includes providing fluid down the substantially vertical well bore through a tubing. A fluid mixture returns up the substantially vertical well bore outside of the tubing. The fluid mixture comprises the drilling fluid after the drilling fluid exits the drill string.
    Type: Application
    Filed: December 18, 2002
    Publication date: March 25, 2004
    Inventor: Joseph A. Zupanick
  • Patent number: 6672408
    Abstract: A system and method for removing contaminated pilings is provided, the system including a casing to enclose the piling and a pressurized air system for excavating soil and contaminated materials from around the piling and material from the piling itself, capturing the excavated soil and contaminated material as it rises within the piling by action of the pressurized air, and a closure mechanism at the bottom of the casing for enclosing and removing the piling without spreading contamination to the surrounding environment. Clean fill material, such as sand, can be injected through the air nozzles or optional sand ports on the casing to fill the void left from the removed piling.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: January 6, 2004
    Inventor: Anthony F. Frantz
  • Publication number: 20030221832
    Abstract: Improved methods of generating gas in and foaming aqueous well fluids introduced into a subterranean zone are provided. A method of the invention includes the steps of combining with an alkaline aqueous well fluid one or more gas generating chemicals and a mixture of foaming and foaming stabilizing surfactants so that the gas generating chemical or chemicals react with the alkaline aqueous well fluid and gas and foam are formed in the well fluid while it is being pumped, and then pumping the well fluid into the subterranean zone.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Inventors: B. Raghva Reddy, Krishna M. Ravi, James E. Griffith, Frank Zamora, Karen Luke, John L. Dennis, Ricky A. Cox