Cleaning Or Unloading Well Patents (Class 166/311)
  • Patent number: 9739114
    Abstract: Downhole tools and methods for isolating a wellbore. A downhole tool can include a body having a bore or flowpath formed therethrough, and one or more sealing members disposed therein. The one or more sealing members can include an annular base and a curved surface having an upper face and a lower face, wherein one or more first radii define the upper face, and one or more second radii define the lower face, and wherein, at any point on the curved surface, the first radius is greater than the second radius. The sealing members can be disposed within the bore of the tool using one or more annular sealing devices disposed about the one or more sealing members.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: August 22, 2017
    Inventor: W. Lynn Frazier
  • Patent number: 9689251
    Abstract: A method to dislodge debris from a pump system in which the pump system includes a down-hole pump coupled by a rod string to an above-ground pump actuator, which is coupled to a controller configured to operate the pump system, and where the actuator has an adjustable stroke length. The method also includes determining that the pump system should begin operating in a pump clean mode, implementing the pump clean mode configured in the controller, and cycling the pump actuator at a preset command speed using a preset starting stroke length, preset acceleration rate and a preset deceleration rate. The method also includes continuing to cycle the pump actuator while incrementally decreasing the stroke length by a preset stroke length increment resulting in increased pump cycling frequencies. Further, the method calls for determining that the pump clean mode is complete, and returning the pump system to a normal operation mode.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: June 27, 2017
    Assignee: Unico, Inc.
    Inventors: Ronald G. Peterson, Jonathan D. Bender
  • Patent number: 9617837
    Abstract: A hydraulic oil well pumping arrangement employs a compensating type hydraulic pump, a directional valving arrangement and a proportioning valving arrangement. When the directional valve is energized, oil is directed to the rod end of the hydraulic cylinder. In one embodiment, a time delay halts the movement of the sucker rod or pumping string to allow accumulation of oil in a slow following well. In another embodiment, the pumping string rapidly falls to the bottom of the stroke in order to shake or jar debris from the string.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: April 11, 2017
    Assignee: Lufkin Industries, LLC
    Inventors: Kenneth H. Vincent, Joel Lasseigne
  • Patent number: 9581281
    Abstract: The invention relates to an apparatus for inserting a new pipe into an old pipe by means of a self-driven impact device, which simplifies the insertion of a new pipe into an old pipe, and wherein blocking elements of an apparatus according to the invention engage with the inside wall of an old pipe in order to prevent any movement of the self-driven impact device in a direction opposite the direction of advance, as well as a method for using the device. The apparatus according to the invention has blocking elements, which are disposed on at least one base body, but preferably four base bodies, which are in turn releasably mounted on the self-driven impact device. This method is characterized in that the base bodies together with the blocking elements and the self-driven impact device are salvaged by the new pipe.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: February 28, 2017
    Assignee: TRACTO-TECHNIK GMBH & CO. KG
    Inventors: Gerhard Volkel, Christian Loher
  • Patent number: 9580991
    Abstract: A shear valve (1) for use in a downhole tool between the annulus and tubing in a well comprises an outer housing (11) and an internal body (13) movable in a longitudinal direction within the housing when the valve is activated, and at least one obstruction device (16, 10) which can be arranged to obstruct the internal body from moving. The obstruction device is capable of being deactivated by pressure from the tubing side of the valve.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: February 28, 2017
    Assignee: PETROLEUM TECHNOLOGY COMPANY AS
    Inventors: Kristian Harestad, Helge Skorve, Magnar Tveiten
  • Patent number: 9493697
    Abstract: A breaker fluid for breaking a filtercake in a wellbore. The fluid including a hydrolysable ester of carboxylic acid, and a chelant, an alkyl glycoside, or a combination thereof. The breaker fluid may be pre-mixed and include an amount of water less than required to completely hydrolyze the ester.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 15, 2016
    Assignee: M-I L.L.C.
    Inventors: Mark Luyster, LaTosha Moore, Andrew Jones
  • Patent number: 9328580
    Abstract: This invention relates to an apparatus and a method for collecting debris in a wellbore.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: May 3, 2016
    Assignee: Atlus Intervention AS
    Inventor: Bard Martin Tinnen
  • Patent number: 9297242
    Abstract: This invention provides a multi-frac composite perforation device having (i) a gun body having an outer wall, (ii) an inner gunpowder box between adjacent perforating charges in the charge frame 1 of said perforation device, and (iii) a structure for gunpowder charge with an outer gunpowder box 4 attached to an outer wall of the charge frame 1, the gun body has a pressure releasing structure corresponding to a closed end of the perforating charge. This invention further provides a method of using the multi-frac composite perforating device to fracture a formation and the choice of gunpowders and gun body thickness with regards to the pressure required for fracturing a formation.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: March 29, 2016
    Assignees: Tong Oil Tools Co., Ltd., Tong Petrotech Inc
    Inventors: Guoan Zhang, Jianlong Cheng, Xianhong Sun
  • Patent number: 9291035
    Abstract: A debris collecting tool for use within a wellbore is provided. The tool comprises a filter body having an upstream end and a downstream end. A first fluid passage extends longitudinally between the upstream and downstream ends of the filter body, and at least one second fluid passage connects the first fluid passage with the exterior of the filter body. A filter is located between the first fluid passage and the at least one second fluid passage. The tool further comprises a flow controller movable between a first position in which fluid is prevented from entering the at least one second fluid passage from the exterior of the filter body, and a second position in which fluid is permitted to enter the at least one second fluid passage from the exterior of the filter body. An agitator body is attached to the upstream end of the filter body, and includes at least one radially projecting agitation member. Methods of using the tool to collect debris and clean a wellbore are also provided.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: March 22, 2016
    Assignee: Weatherford Switzerland Trading and Development GMBH
    Inventor: Ruairidh Cooper
  • Patent number: 9260941
    Abstract: A cleaning tool (1) for use in cleaning ferrous material from a wellbore has a magnetic cleaning functionality by provision of magnets (5) in an Halbach array on a downhole tool component of a workstring. The Halbach array may be an Halbach cylinder positioned on a mandrel wherein the magnetic field is external to the cylinder with substantially zero magnetic field within the tool.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: February 16, 2016
    Assignee: M-I Drilling Fluids UK Limited
    Inventor: James Linklater
  • Patent number: 9163474
    Abstract: A packer cup assembly uses a shape memory alloy packer cup reformed for run in into a cylindrical shape about a mandrel with opposed end rings that extend radially further out during run in to protect the cup. Upon application of a thermal stimulus the cup reverts to a functional cup seal shape by engaging the rim and parts of the cup to the surrounding wellbore. The shape change can also involve a shortened axial dimension that results in the cup shape moving away from the end ring to which it is unattached. The stimulus is provided with well fluids or artificially through heaters or other techniques. External elongated protective elements can be provided to overlay the cup seal during run and bend outwardly with the cup seal during reversion to its functional shape.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: October 20, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Michael Ramon
  • Patent number: 9121242
    Abstract: A tool for suspending in a well retrieves various metal debris from the well, and includes an elongated tool body with a plurality of magnets included in a plurality longitudinal ridges which are circumferentially spaced. In the method a plurality of magnets can be positioned within openings, recesses, or pockets in each ridge, and held in place by one or more retaining plates, the tool being connected to a drill string and lowered into a well.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: September 1, 2015
    Assignee: Odfjell Well Services Norway AS
    Inventors: Simon Leiper, Kevin Robertson
  • Patent number: 9109416
    Abstract: A one trip method for cleaning an existing string while performing testing on the string allows in the same trip the drilling of additional wellbore. The cleanup equipment is retracted after the testing is completed so that it will not impede the advancement of the drill bit at the lower end of the string. The cleanup tools are typically extend for run in through the string and they can be collapsed by a technique such as dropping a ball to shift a sleeve to disable the piston assembly that holds the cleanup tools extended and allows them to be retracted using a return spring or other source of potential energy.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: August 18, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Yang Xu
  • Patent number: 9068416
    Abstract: Disclosed is a downhole knock-out tool (900) for use in a tubing string (702) with a power head (704) for creating reverse flow. The tool has a cylindrical housing (910) with an inner tube (920) in the housing directing well fluids against a knock-out (940) or deflector cone to accumulate debris in the annulus (926) formed between the housing and tube.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: June 30, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Benton T. Knobloch, Jr., David J. Tilley, Todd J. Roy
  • Publication number: 20150114654
    Abstract: A tool for polishing a seal surface of a wellhead assembly includes a cylindrical tool body with an axis. The tool body includes a base member with a first end, and a second end. A tubular skirt member extends from the second end of the base member. The skirt member has a sidewall, a base end connected to the base member, and an open end opposite the base end. A plurality of axial slots extend through the sidewall of the skirt member, the axial slots being spaced circumferentially around the skirt member. A polishing belt is woven through the axial slots of the skirt member.
    Type: Application
    Filed: October 30, 2013
    Publication date: April 30, 2015
    Applicant: GE Oil & Gas Pressure Control LP
    Inventors: Noel Anthony Monjure, Eugene Allen Borak, Andrew Browne Helvenston
  • Patent number: 9010430
    Abstract: Shaped particulates which have been compressed from a composite of a well treatment agent and adsorbent in a matrix may be introduced into horizontal or deviated oil or gas wells. The well treatment agent of the shaped pellets may be used to prevent and/or control the formation of deposits in a production well.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: April 21, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: John Gregory Darby, D. V. Satyanarayana Gupta, Dong Shen
  • Patent number: 9010434
    Abstract: A method for connecting coupling parts of a subsea coupling arrangement, the coupling parts having at least one sealing surface, in which the coupling parts are connected by displacing the coupling parts towards each other, wherein a watertight seal is formed when the coupling parts are connected, feeding filtered sea water through a channel into a space between the coupling parts during the displacement, flowing the filtered sea water over the sealing surfaces to prevent particles and dirt from being trapped between the sealing surfaces, and discharging the filtered sea water from the space into surroundings of the subsea coupling arrangement.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: April 21, 2015
    Assignee: Vetco Gray Scandinavia AS
    Inventor: Svend Erik Rocke
  • Patent number: 9004173
    Abstract: Wiper plugs or other shapes are made from shape memory foam in a size large enough to wipe or clean a tubular of a predetermined size. The plug or other shape is then reformed to a smaller dimension above its transition temperature and allowed to cool while holding that shape. The smaller shape allows delivery through a running string that is smaller than the tubular string to be wiped. Preferably before reaching the string to be wiped, the trigger is applied to get the wiper or other shape above its transition temperature where it then reverts to the prior larger dimension for effective wiping of the string that it will next pass through. The trigger can be well fluid temperature or composition, applied heat from the tubular, generated heat within the wiper or other shape, or heat released from agents introduced into the well acting alone or in conjunction with well fluids.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: April 14, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Bennett M. Richard, Oleg A. Mazyar
  • Patent number: 8985214
    Abstract: A method for reducing corrosion on the exterior or interior surface, for example coiled tubing and casing, includes mixing a selected surfactant and particles of a polymer in oil, then adding the oil to water and contacting the surfaces of the tubing with the mixture.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: March 24, 2015
    Assignee: Coil Chem, LLC
    Inventors: Jerry W. Noles, Jr., Alex J. Watts
  • Publication number: 20150075799
    Abstract: A method and apparatus for removing debris from a wellbore using a cleaning tool. The tool may comprise an inner mandrel and a cup member coupled to the inner mandrel. The cup member is moveable between a collapsed position where fluid may flow across the exterior of the cup member, and an extended position where fluid is diverted into a flow path disposed between the inner mandrel and the cup member. The fluid is diverted through a filter member that is coupled to the inner mandrel below the cup member.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Timothy L. WILSON, Albert C. ODELL, II, Simon J. HARRALL
  • Patent number: 8973682
    Abstract: A wellbore obstruction-clearing tool connected to the bottom of a tubing string, such as casing, utilizes a sleeve which is axially and rotationally moveable in response to axial reciprocation of a tubing string to engage and clear obstructions in the wellbore. Fluid is discharged through the casing and the tool to engage the obstructions and to convey debris through the annulus to surface. Thus, the obstructions are cleared from the wellbore, permitting the casing to be advanced, without the need to rotate the casing.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: March 10, 2015
    Inventor: Randall E. Gosselin
  • Patent number: 8967265
    Abstract: A flow control apparatus for use in a wellbore comprises a screen, a first inflow control device and a second inflow control device, wherein a fluid inflow path is provided through the screen and from an outer portion to an inner portion of each inflow control device. A method of cleaning a flow control apparatus such as that described above comprises providing in a wellbore a flow control apparatus comprising at least one screen and at least one inflow control device wherein a fluid inflow path is provided through the at least one screen and from an outer portion to an inner portion of the at least one inflow control device, targeting the at least one inflow control device with a treatment fluid and delivering the treatment fluid such that the fluid flows in a reverse direction along the fluid inflow path.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: March 3, 2015
    Assignee: Weatherford U.K. Limited
    Inventors: Abdurrezagh Awid, Annabel Green, Murray Dowsett
  • Patent number: 8967241
    Abstract: A downhole tool for removing debris from fluid flowing through the downhole tool uses a screen member and wiper member, the wiper member having at least one window disposed through the inner and outer wall surfaces of the wiper member. Either the screen member or the wiper member is rotatable such that rotation of the screen member or the wiper member causes debris disposed on the outer wall surface of the screen member to fall-off the screen member. At least one direction port disposed at either the upper end of the screen member or the upper end of the wiper member causes rotation of the screen member or wiper member when fluid flows through the downhole tool.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: March 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Ying Qing L. Xu, Yang Xu
  • Patent number: 8960297
    Abstract: A well cleanout tool configured to replace a joint of tubing in a multi-joint tubing string for a wellbore. The well cleanout tool having a bushing threadable to a tubular and a one piece integral nozzle threaded to the tubular opposite the bushing, with an inner gas separator assembly contained within the tubular for flowing particulate out the nozzle end and cleaned wellbore fluid out the bushing end.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: February 24, 2015
    Inventor: Daman E. Pinson
  • Patent number: 8960282
    Abstract: A subterranean debris catcher takes in debris laden fluid at a lower end. The inlet flow is induced with an eductor whose discharge goes around the housing to the lower end inlet for the debris. The eductor suction induces flow into the lower end of the housing as well. Incoming debris goes up an annular space around the collection receptacle and turns to pass through a bladed wheel that imparts a spin to the flowing stream. The flow direction reverses from up before the wheel to down through a tube after the wheel. The solids are flung to the tube periphery and the fluid reverses direction to go back up to a screen before reaching the eductor suction connection. The debris swirls down an open bottom tube and is collected in a housing surrounding the down tube.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: February 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Hong Zhu
  • Patent number: 8955584
    Abstract: A method of drilling and cleaning a wellbore while rotating the drill string after full drilling depth is reached without running the drill string out the bore to install a clean up work string is disclosed wherein a drill string having a drill bit at one end includes at least one near bit selectively activatable cleaning tool (10, 11, 12) mounted within the length of the drill string, said cleaning tool having a cleaning member (18) adapted to be moved from a close fitting stowed configuration within a recess (17) to a deployed configuration upon a body of the tool, wherein the cleaning member has magnets (19, 43) for use in positioning thereof, and compact tools for scraping, milling and brushing with improved resistance to ingress of detritus, debris and formation particulates are disclosed.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: February 17, 2015
    Assignee: Specialised Petroleum Services Group Limited
    Inventor: George Telfer
  • Patent number: 8950477
    Abstract: The present invention relates to hydraulic jars which include a jar body; a spindle axially movable within the jar body and coupled to the jar body by means of a helical splined coupling; the spindle being connectable to a pipe string and the stuck object; a cylinder concentrically placed within the jar body with a radial gap, and having chambers for filling with a work fluid, the chambers being separated by a piston and fluidly connected by a channel, wherein the channel is provided by a back valve. The piston is axially movable within the cylinder, and is connectable to the spindle by means of a tractive rod, and to the body by means of a compensative rod. The piston is further provided with elastic split compression rings having initial gaps equal or close to zero.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: February 10, 2015
    Assignee: Scientific and production enterprise Limited liability company BURINTEKH (BURINTEKH ltd)
    Inventors: Yunir Gafurovich Vagapov, Gniyatulla Garifullovich Ishbaev, Samat Yunirovich Vagapov
  • Patent number: 8950495
    Abstract: A method for cleaning a casing of an oil well is disclosed. Operational parameters for a cleaning tool may be defined based, at least in part, on results of a survey of the well. The cleaning tool may include a discharge head to generate electrical discharges between a pair of electrodes, the electrical discharges causing shock waves to remove deposits from the casing. The cleaning tool may be lowered into the casing. The cleaning tool may generate shock waves in accordance with the defined operational parameters to clean a predetermined target portion of the casing. The cleaning tool may be withdrawn from the casing.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: February 10, 2015
    Assignee: Past, Inc.
    Inventors: Joel Scott Barbour, Dennis Andrew Chapman, Paul Edward Weatherford, David Andrew McCartney
  • Patent number: 8950481
    Abstract: A method of analyzing a wellbore fluid that includes treating a wellbore fluid with an emulsifying fluid, the emulsifying fluid comprising: a hydroxylated ether; an amphoteric chemotrope; and testing the treated wellbore fluid for at least one of turbidity and total suspended solids is disclosed. Methods of cleaning wellbores are also disclosed.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: February 10, 2015
    Assignee: M-I LLC
    Inventors: Eugene Dakin, Hui Zhang, Bethicia B. Prasek
  • Publication number: 20150027713
    Abstract: A torque resistant casing scraper for attachment to a drillstring is comprised of a one piece tool body having rotationally unrestrained two-piece blade carriers with hardened diamond-shaped cutting blades and rotationally unrestrained two-piece axial centralizers. Adjoining blade carriers and centralizers rotate independently of the drillstring and the blade carriers interlocked to prevent relative rotation between the blade carriers and to index, or orient the cutting blades as desired along the longitudinal axis of the casing scraper. The diamond-shaped cutting blades and the indexed blade carriers allow both right-handed and left-handed drillstring rotation without reducing utility or effectiveness of the scraper. The casing scraper is particularly effective for deep, near-horizontal wellbores.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 29, 2015
    Inventor: Dennis Joel Penisson
  • Publication number: 20150021034
    Abstract: Systems, devices and methods for strands of conductor oriented in a first direction; and strands of soft magnetic material oriented in a second direction that is different from the first direction evaluating a downhole fluid from a borehole intersecting an earth formation. The method may include filtering magnetic particles in the downhole fluid by activating a switchable magnetic filter when the downhole fluid enters a sample chamber in the borehole. The downhole fluid may include formation fluid. The filter may include a wire mesh comprising strands of conductor oriented in a first direction; and strands of soft magnetic material oriented in a second direction. The method may also include cleaning the switchable magnetic filter by deactivating the switchable magnetic filter. Cleaning the switchable magnetic filter may include removing filtered particles using a fluid. The fluid may be at least one of: i) the downhole fluid; and ii) engineered fluid.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Applicant: BAKER HUGHES INCORPORATION
    Inventor: Thomas Kruspe
  • Patent number: 8932999
    Abstract: A method of cleaning a wellbore prior to the production of oil or gas is disclosed, wherein the wellbore has been drilled with an invert emulsion drilling mud that forms an invert emulsion filter cake. The method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid includes an aqueous fluid, and imino diacetic acid or salt thereof. Optionally an acid buffering agent, and a weighting age are also included. The breaker fluid is formulated such that after a predetermined period of time and the filter cake present in the wellbore or on the wellbore face is substantially degraded. Other methods may also include drilling the wellbore with a water-based drilling mud that forms a water-based filter cake, wherein the method may include the steps of circulating a breaker fluid into the wellbore, where the breaker fluid may include an aqueous fluid, and an iminodiacetic acid or a salt thereof.
    Type: Grant
    Filed: February 18, 2008
    Date of Patent: January 13, 2015
    Assignee: M-I L.L.C.
    Inventors: Andrew G. K. Jones, Mark Luyster, Raul Navarro
  • Patent number: 8931558
    Abstract: A flow line cleanout device for a coiled tubing head of a coiled tubing string is comprised of a hydraulic vane motor assembly having a rotor configured for attachment to and rotation of a work tool such as a fluid ejecting nozzle to be inserted into a flow line. Seals around the device seal the flow line so that fluid pressure behind the coiled tubing head force fluid through the hydraulic vane motor assembly to rotate the rotor and the attached nozzle in response to pressure changes created by check valves. Jets of fluid from the rotating nozzle serve to wash and remove blockages in the flow line and facilitate the insertion and advancement of the coiled tubing string.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 13, 2015
    Assignee: Full Flow Technologies, LLC
    Inventor: Tom M. Harper
  • Publication number: 20140374111
    Abstract: A downhole tool for removing debris from a wellbore comprises a mandrel and a shroud disposed around a portion of the mandrel. The mandrel includes at least one mandrel port in fluid communication with a mandrel bore. The shroud includes a cavity and a shroud port. Debris laden fluid is pulled into the shroud cavity by flowing fluid through the mandrel bore, out the mandrel port, into the shroud cavity, and through the shroud port. The debris-laden fluid is pulled into the shroud cavity due to a pressure differential created by the flow of the fluid through the mandrel port and out of the shroud port. As the debris laden fluid flows into the shroud cavity, the debris is captured within the tool.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 25, 2014
    Inventors: Ying Qing Xu, Gregory L. Hern, Calvin J. Stowe II, Yang Xu
  • Patent number: 8915299
    Abstract: Apparatus (100) for use in top filling of tubulars comprising an inlet (200) for fluid communication with a top drive for providing top filling fluid, and an outlet (300) for fluid communication with a tubular. The apparatus (100) comprises a filter configuration (120), in fluid communication with the inlet (200) and the outlet (300) and configured to remove debris from a top filling fluid flow flowing from the inlet (200) to the outlet (300) during top filling of a tubular.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: December 23, 2014
    Assignee: Churchill Drilling Tools Limited
    Inventor: Andrew Churchill
  • Publication number: 20140338915
    Abstract: The present invention is directed to a cross-linked scale control agent particle comprising: a scale control agent and a cross-linker. The scale control agent is cross-linked by the cross-linker. The present invention is also directed to a cross-linked organic-based crystalline inhibitor particle comprising: an organic-based crystalline inhibitor and a cross-linker. The organic-based crystalline inhibitor is cross-linked by the cross-linker. The present invention is also directed to the use of cross-linkers which can also act as benefit agents and to the use of capping and extension agents which act as further benefit agents The present invention is further directed to a particle comprising more than one cross-linked active agents; the active agent may be a combination of a scale control agent and an organic-based crystalline inhibitor.
    Type: Application
    Filed: December 20, 2012
    Publication date: November 20, 2014
    Inventors: Paul Michael Ferm, Klin Aloysius Rodrigues, John Socrates Thomaides, Stuart Holt, Jian Zhou, Lei Zhang, Jannifer Sanders
  • Publication number: 20140332220
    Abstract: A combined activator-breaker fluid system is effective in oil and gas field applications to essentially simultaneously activate or deploy a shape-memory material and at least partially remove a polymeric filter cake left by a drilling mud, all in one step or trip.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 13, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Ramon R. Garza, Anuradee Witthayapanyanon, Thomas A. Jones
  • Patent number: 8881807
    Abstract: Disclosed herein is an autonomous and consistently active acoustic rehabilitation technology for wells, reservoirs, and extraction of natural resources using a borehole method. The invention can be used in oil, gas, mining, geological exploration industries, and in extraction technologies for oil and gas, including shale. It is especially useful for improvement of oil and gas output from wells and stimulation of production for maximizing recovery from reserves. The invention is applicable to areas including, but not limited to, well reserves using pumps, layer pressure supporting wells, and offshore-bed wells.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: November 11, 2014
    Assignee: Well-Smart Technologies—Global, Inc
    Inventors: Ernest Orentlikherman, Isaak Orentlikherman
  • Patent number: 8881822
    Abstract: A method of cleaning a wellbore drilled with an oil-based drilling fluid that forms an oil-based filter cake may include: emplacing a breaker fluid into the wellbore, the breaker fluid comprising: a water-miscible non-aqueous fluid; at least one weighting salt; and at least one breaking agent; and shutting in the well for a period of time sufficient to initiate breaking of the oil-based filter cake.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: November 11, 2014
    Assignee: M-1 L.L.C.
    Inventors: Eugene Dakin, Chris Shepherd, Steven Young
  • Publication number: 20140305653
    Abstract: A method (50) and an assembly (10) for milling an obstruction disposed within a wellbore (W) includes a milling module (12) having a motor (22) rotating a milling bit (14), a first electronics cartridge (26) for controlling the motor based upon a motor torque value, a tractor module (16, 18) for engaging with the wellbore and providing a push force against the wellbore to urge the milling assembly in a direction of the milling bit, and a second electronics cartridge (28) for controlling a push force value of tractor module. The method involves rotating the milling bit (54) and engaging the tractor module with the wellbore (56), and adjusting, iteratively, the operation (58) based on a calculated torque value and a calculated push force value to maintain the calculated values at around a target torque value and below a push force limit value (66, 70).
    Type: Application
    Filed: November 2, 2012
    Publication date: October 16, 2014
    Inventors: Grant Lee, Michael Jensen, Neil Herbst, Sarah Blake
  • Publication number: 20140305652
    Abstract: A system and method for removing liquid from a horizontal wellbore is disclosed. The system and methods utilize multi-conduit tubing associated with one or more liquid intake port(s) positioned at selected locations along the tubing and positioned within a wellbore. The one or more liquid intake ports are typically placed at liquid accumulation points along the primarily horizontal section of the wellbore.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Inventor: Scott J. Wilson
  • Publication number: 20140290958
    Abstract: Embodiments relate to removing residue from a well bore and well bore equipment with a treatment fluid composition, and in some embodiments, to treatment fluid compositions that comprise nanoparticles. An embodiment provides a method of removing drilling fluid residue from the surfaces of well equipment. The method comprising: applying a solid nanoparticle film to at least a portion of the surfaces of the well equipment with a treatment fluid comprising solid nanoparticles; and allowing the solid nanoparticles to interact with the surfaces of the well equipment and the drilling fluid residue adhered to the surfaces of the well equipment to remove at least a portion of the drilling fluid residue from the surfaces of the well equipment.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 2, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Alan William Marr, Lee Jeremy Hall, Philip Wayne Livanec
  • Patent number: 8844631
    Abstract: A debris removal system includes a tubular. A closure mechanism arranged to at least partially close an interior of the tubular. An injector mechanism having an exit arranged downhole of the closure mechanism; wherein debris removing material ejected from the injector mechanism is directable towards the closure mechanism. Also included is a method of removing debris in a downhole tubular.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: September 30, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: David Z Anderson, Michael L. Hair
  • Patent number: 8844850
    Abstract: A debris reducer for reducing debris within a fluid flow line having a lower screen that is secured within the flow line, the lower screen having a lower screen cage with a lower cutting portion. A debris reducer element is retained within the flow line and is moveably disposed with respect to the lower screen. The debris reducer element has an upper screen cage with an upper cutting portion. The upper and lower screen cages overlap and move the upper and lower cutting portions with respect to each other to reduce debris within fluid flowing through the flow line.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: September 30, 2014
    Assignee: Baker Hughes Incorporated
    Inventor: Zhi Yong He
  • Patent number: 8844619
    Abstract: A subterranean debris catcher swirls the incoming debris laden stream by putting grooves or spiral projections on the inside of the inlet pipe. The solids come out of openings in the side of the inlet pipe and in others the solids can exit near the top either directly into the enclosed solids holding volume as the liquid exits straight out or the solids can be discharged out the end of the inlet pipe into the bigger open space defined by the housing. In the latter case the inside housing wall can have a screen or vanes that slow down the solid particles as the fluid continues to a housing exit and eventually to an exit screen before being discharged to either go to the surface or recirculate back along the outside of the tool to the inlet pipe while picking up additional debris.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: September 30, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Mohan L. Soni, Gerald D. Lynde, Ronnie D. Russell, Jeremy J. Guillory, Steve Rosenblatt
  • Patent number: 8844622
    Abstract: A method of drilling and cleaning a wellbore includes providing a drill string having a drill bit and a cleaning tool with selectively activatable cleaning members; drilling a wellbore using the drill bit while maintaining the cleaning members in a deactivated position; and pulling the drill string from the wellbore with the cleaning members in an activated position, to thereby clean the wellbore. A corresponding cleaning tool includes a body having a bore running therethrough, a sleeve located within the bore, the sleeve including a ball seat and the sleeve being biased in a first direction, and a plurality of selectively activatable cleaning members mounted for repeated movement relative to the body between activated and deactivated positions.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: September 30, 2014
    Assignee: Specialised Petroleum Services Group Limited
    Inventor: George Telfer
  • Publication number: 20140262299
    Abstract: The present invention relates to an apparatus and a method for collecting debris in a wellbore.
    Type: Application
    Filed: November 7, 2012
    Publication date: September 18, 2014
    Applicant: AKER WELL SERVICE AS
    Inventor: BĂĄrd Martin Tinnen
  • Publication number: 20140262298
    Abstract: A tubing cleaning system comprising: a body portion, a tubing aperture, a one or more spray heads, a fluid input and a one or more fluid channels. Said body portion comprising a one or more plates. Said tubing aperture through said one or more plates. Said one or more spray heads arranged within said tubing aperture. Said fluid input. Said one or more fluid channels cut into said one or more plates between said fluid input and said one or more spray heads.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Steve Hefner, Deborah Hefner
  • Patent number: 8826986
    Abstract: A downhole tool including a resilient body configured to be disposed on a drill string, the resilient body comprising a plurality of radial blades having an abrasive coating, wherein the radial blades are configured to deflect when inserted into downhole tubing, and wherein the resilient body is configured to allow rotation relative to the drill string. Additionally, a method for cleaning downhole tubing, the method including inserting a resilient scraper disposed on a drill string into the downhole tubing, the resilient scraper including a plurality of radial blades having an abrasive coating. The method further including rotating the drill string, and contacting the resilient scraper to an internal wall of the downhole tubing.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: September 9, 2014
    Assignee: M-I L.L.C.
    Inventor: John C. Wolf
  • Publication number: 20140238684
    Abstract: A fitting having a cover tube connected to one end and a pressure line in the fitting, connected to a rigid tube projecting from the fitting and through the cover tube. The method includes projecting a rigid tube in a masonry bore, and applying pressurized air to blow debris from the bore to be captured in a cover tube.
    Type: Application
    Filed: February 22, 2013
    Publication date: August 28, 2014
    Inventor: Hadley H. Caneer