With Well-type Screen Patents (Class 175/314)
  • Patent number: 9143540
    Abstract: A network service access gateway is described that provides service correlation for incoming and outgoing invocations. The service requests can be received to the gateway from telecommunication mobile devices as well as from external service provider applications. A first service request can be received to the gateway and processed. The service correlation identifier (SCID) of the request can be persisted within the gateway prior to forwarding the request to the recipient. When a second and related service invocation is later received to the gateway, the two invocations can be associated based on the SCID. Based on the association, various custom functionality can be performed, such as invoking the charging system to treat the multiple services as a single unified transaction.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: September 22, 2015
    Assignee: ORACLE INTERNATIONAL CORPORATION
    Inventor: Daniel Jansson
  • 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
  • Patent number: 8746340
    Abstract: A down hole apparatus for filtering debris from a fluid in a well bore including a screen sub, a diverter assembly connected to the screen sub, a screen section extending from the diverter assembly and connected to the screen sub. The screen section includes a plurality of openings for filtering debris from the fluid. The debris collects in an annulus between the screen section and the screen sub. The diverter assembly includes a detachable plug having a fishing portion capable of engaging a fishing tool. Removal of the detachable plug with a fishing tool opens a central passage through the diverter assembly and the screen section. The diverter assembly may include an outer and an inner body and one or more passages between the outer and inner bodies. The detachable plug may include one or more dog members capable of engaging the inner body.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: June 10, 2014
    Inventors: Benny Donald Mashburn, Douglas A. Beynon
  • Patent number: 8689878
    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 directional 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: January 3, 2012
    Date of Patent: April 8, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Ying Qing Xu, Yang Xu
  • Patent number: 8651181
    Abstract: Apparatus for downhole filtration of fluids in a wellbore. The apparatus has a diverter and a filter slidably mounted on a mandrel. The diverter has a circumferential wiper element between the mandrel and the casing within which the apparatus is run. When fluids are reverse circulated, or the tool is being pulled out, the diverter shifts to a downward position, wherein it seals against an upper end of the filter, filtering out solids in the fluids and retaining them in a chamber between the sleeve and mandrel. When running the tool into a wellbore, the diverter shifts to an upper position to permit fluids to bypass the filter sleeve. The filter sleeve bears against a spring loaded seat, which permits creating a gap between the diverter and an upper end of the filter sleeve to allow fluids to bypass the filter sleeve should the filter sleeve slots become plugged.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: February 18, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Benton T. Knobloch, Todd Roy, David J. Tilley
  • Patent number: 8434561
    Abstract: A method of drilling and completing a well can include drilling a section of a wellbore, positioning a perforated shroud in the section of the wellbore, securing the perforated shroud by setting a hanger, and isolating the section of the wellbore from a remainder of the wellbore vertically above the section of the wellbore. The drilling, positioning, securing and isolating steps can be performed while the section of the wellbore is not exposed to a liquid column extending to a surface location. The drilling, positioning, securing and isolating steps can be performed in a single trip of a drill string into the wellbore.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: May 7, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Raymond R. Bullock, Andrew D. Penno
  • Patent number: 8336617
    Abstract: Apparatus for downhole filtration of fluids in a wellbore. The apparatus has a diverter and a filter slidably mounted on a mandrel. The diverter has a circumferential wiper element between the mandrel and the casing within which the apparatus is run. When fluids are reverse circulated, or the tool is being pulled out, the diverter shifts to a downward position, wherein it seals against an upper end of the filter, filtering out solids in the fluids and retaining them in a chamber between the sleeve and mandrel. When running the tool into a wellbore, the diverter shifts to an upper position to permit fluids to bypass the filter sleeve. The filter sleeve bears against a spring loaded seat, which permits creating a gap between the diverter and an upper end of the filter sleeve to allow fluids to bypass the filter sleeve should the filter sleeve slots become plugged.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: December 25, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Benton Knobloch, Todd Roy, David J. Tilley
  • Patent number: 8316965
    Abstract: Drilling tool (1) for drilling a well downhole where fluid is surrounding the tool and where the tool has a housing (15) and is connected to an electrical conducting means, such as a wireline. The drilling tool has a drilling head (2) and a fluid cleaner (3) for removal of elements, such as debris and formation pieces, from the fluid while drilling downhole. The fluid cleaner has a chamber (4) and a filter (5) within the chamber for separation of the elements from the fluid. The tool further comprises a pump (8) for pumping the fluid into the chamber through an inlet (11) in the drilling head (2) and through the filter before entering the well again. Furthermore, the tool comprises a driving unit for driving the pump and the drilling head.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: November 27, 2012
    Assignee: Welltec A/S
    Inventors: Jørgen Hallundbaek, Thomas Sune Andersen
  • Patent number: 8302676
    Abstract: In general, an apparatus is provided comprising either a single wall drill string or a concentric drill string for use in drilling, completing and/or stimulating a well in a heavy oil or bitumen reservoir for in situ recovery of heavy oil and bitumen. More particularly, the single wall drill string or the concentric drill string further comprises an electrical cable and heating device for heating the drill string to stimulate the flow of the heavy oil and bitumen in the well after chilling is completed.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: November 6, 2012
    Assignee: J. I . Livingstone Enterprises Ltd.
    Inventor: James I. Livingstone
  • Patent number: 8149132
    Abstract: A MWD/LWD hard line communication system and method includes for the system a cartridge capable of deploying wire in a borehole, a screen attachable to the cartridge and positionally retainable in the borehole, and a communications connector operably associable with the cartridge; and for the method, deploying hardline from a cartridge, attaching the cartridge to a screen, and attaching the cartridge to a communications connector. Another method includes pumping fluid downhole, urging a wire nest into a screen, and compacting the nest into the screen with the fluid until the fluid is pumpable past the nest through an unobstructed portion of the screen.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: April 3, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: Andreas Peter
  • Patent number: 8028768
    Abstract: A filter for a drill string comprises a perforated receptacle having an upper end and a lower end. The upper end of the filter comprises a drilling mud intake, and the lower end of the filter comprises an opening. A displaceable plug is seated on the opening at the lower end.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: October 4, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Paula Turner, David Lundgreen
  • Patent number: 7980330
    Abstract: A debris collector or strainer assembly for a well string tubular coupling wherein one embodiment discloses a conical coil with one end fixed to a hub, a beveled collar surrounding and supporting the hub and secured thereto with shear pins, the conical coil is deformable as necessary to capture irregular shaped objects between its coils, its loops may be closed, spaced apart, fixed or allowed to expand under pressure, and may be retrieved using an overshot fishing tool to engage a rod extending axially through the coil which may be attached at one or both ends of the coil.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: July 19, 2011
    Inventor: Robert J. LeJeune
  • Patent number: 7950458
    Abstract: An apparatus and method for drilling a well in a heavy oil or bitumen reservoir for in situ recovery of heavy oil and bitumen is provided. More particularly, an apparatus and method for drilling, completing and/or stimulating a heavy oil or bitumen well in a heavy oil or bitumen reservoir is provided, comprising: providing a concentric drill string having an inner tube and an outer tube defining an annulus therebetween, the outer tube further having a plurality of slots sealed with a temporary filler material; drilling a borehole into the reservoir using a drilling member connected at the lower end of the concentric drill string and delivering drilling medium through one of the annulus or inner tube and extracting the exhaust drilling medium through the other of the annulus or inner tube; leaving the concentric drill string in the well after drilling of the borehole is completed; and removing the temporary filler material to expose the plurality of slots in the outer tube and form a slotted liner.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: May 31, 2011
    Assignee: J. I. Livingstone Enterprises Ltd.
    Inventor: James I. Livingstone
  • Patent number: 7926595
    Abstract: A downhole filter with a filter housing having a top filter and a bottom filter disposed therein. The filter housing can be in fluid communication with each filter. Each filter can be in fluid communication with a burst disk housing having a burst disk module and a burst disk. Each burst disk housing can be in fluid communication with the filter housing. Fluid can flow through the filter housing and through the filter. When a filter is clogged, the fluid can burst a burst disk, thereby bypassing the filter. The downhole filter can include a middle sub in fluid communication with the top filter and a second portion of the filter housing. The middle sub can threadably engage a bottom burst disk housing.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 19, 2011
    Assignee: Petroquip Energy Services, LLP
    Inventors: Charles David Wintill, William John Darnell, William Ryle Darnell, Rodney Wayne Long, Todd Ulrich Chretien
  • Publication number: 20100236833
    Abstract: A filter for a drill string comprises a perforated receptacle having an upper end and a lower end. The upper end of the filter comprises a drilling mud intake, and the lower end of the filter comprises an opening. A displaceable plug is seated on the opening at the lower end.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 23, 2010
    Inventors: David R. Hall, Paula Turner, David Lundgreen
  • Patent number: 7735553
    Abstract: A snap-lock bushing is provided for use with prepacked screens for monitoring wells. The bushing has an inner bore for sliding over a tubular well casing member and a raised lip protruding from the inner bore for engaging corresponding grooves at each end of the well casing member. The raised lip includes a plurality of lip segments with gaps or slots formed between the lip segments, which allow the raised lip to flex outward during assembly. A prepacked screen is assembled using a snap-lock bushing at each end of the well casing member. A mesh screen is placed in a concentric relationship around the well casing member with the ends of the mesh screen secured over the outer cylindrical surfaces of the bushings. A filter pack of granular material is placed in the concentric space between the well casing member and the screen member during assembly.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: June 15, 2010
    Assignee: Kejr Inc.
    Inventors: Mike B. Carlin, Thomas M. Christy, David W. Cooper, Allen M. Paradis
  • Patent number: 7708076
    Abstract: A liner rotates a bit to make more hole. The liner has openings with inserts in them to lend torque resistance to the liner. The inserts have a passage with a send control media in the passage and a seal so that the liner can hold pressure for run in to get proper circulation through the bit. When sufficient hole is made, the liner is hung off an existing cemented tubular and the seal for the passages with the sand control media is removed by a variety of techniques so that the formation can be produced in a single trip.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: May 4, 2010
    Assignee: Baker Hughes Incorporated
    Inventors: Bennett M. Richard, Michael H. Johnson, Steve Rosenblatt
  • Patent number: 7631705
    Abstract: A removable plug and collar for a hollow stem screened auger and a method of collecting water samples using the plug and collar. The plug has an outer threaded surface that is threaded in a first direction. The top of the plug has an internal threaded cavity that is threaded in a second direction opposite that of the first direction. The collar is pressure fit within the top of the screened auger, held in place with an auger bolt, and has an internal threaded surface to receive the plug. The plug has multiple ports to receive air and sample tubes, enabling samples to be collected without removing the plug from the screened auger. To set a well after sampling, the plug is removed from the collar down hole as a drill rod is threaded into the plug's internal threaded cavity in a direction the same as the second direction.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: December 15, 2009
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Philip T. Harte, Glenn A. Berwick, Jeffrey B. Grey
  • Patent number: 7549486
    Abstract: A screen apparatus for use in a well bore. The apparatus comprises a latch; a first tubular disposed within the latch, the first tubular having an internal retrieving profile; a screen extending from the first tubular, and wherein the screen contains a first portion with a first outer diameter, and a second portion that extends to a second outer diameter, and wherein the first outer diameter is larger that than the second outer diameter. The apparatus further comprises a diverter device operatively attached to an inner portion of the first tubular, and wherein the diverter device contains a passage to divert the fluid to an outer portion of the screen. In one preferred embodiment, the screen comprises a series of longitudinal slots of progressively smaller length. Also, the screen may contain a stepped outer diameter portion and inner diameter portion. A method of cleaning debris is also included.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: June 23, 2009
    Inventors: Benny Donald Mashburn, Douglas A. Beynon
  • Publication number: 20080078585
    Abstract: A drainage pipe to be inserted into the ground, presents a plurality of openings (5) for the passage of water, wherein each of the openings is closed by a cap (9) containing one or more holes (11) filled with water-soluble material (13), adapted to prevent the passage of debris during drilling, which the material dissolves in contact with the water in the soil. In particular, the caps have a hollow body (9) with a plurality of holes (11) in the wall for the passage of water, which the body and holes are filled with water-soluble material (13). Moreover, the caps present an undercut (12) on the end wall of the cavity, to prevent the exit of the water-soluble material (13) which fills the hollow body (9).
    Type: Application
    Filed: October 2, 2007
    Publication date: April 3, 2008
    Inventor: Cesare Melegari
  • Publication number: 20080001403
    Abstract: A snap-lock bushing is provided for use with prepacked screens for monitoring wells. The bushing has an inner bore for sliding over a tubular well casing member and a raised lip protruding from the inner bore for engaging corresponding grooves at each end of the well casing member. The raised lip includes a plurality of lip segments with gaps or slots formed between the lip segments, which allow the raised lip to flex outward during assembly. A prepacked screen is assembled using a snap-lock bushing at each end of the well casing member. A mesh screen is placed in a concentric relationship around the well casing member with the ends of the mesh screen secured over the outer cylindrical surfaces of the bushings. A filter pack of granular material is placed in the concentric space between the well casing member and the screen member during assembly.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 3, 2008
    Inventors: Mike B. Carlin, Thomas M. Christy, David W. Cooper, Allen M. Paradis
  • Patent number: 7303029
    Abstract: A filter for a drill string comprises a perforated receptacle having an open end and a perforated end and first and second mounting surfaces are adjacent the open end. A transmission element is disposed within each of the first and second mounting surfaces. A capacitor may modify electrical characteristics of an LC circuit that comprises the transmission elements. The respective transmission elements are in communication with each other and with a transmission network integrated into the drill string. The transmission elements may be inductive couplers, direct electrical contacts, or optical couplers. In some embodiments of the present invention, the filter comprises an electronic component. The electronic component may be selected from the group consisting of a sensor, a router, a power source, a clock source, a repeater, and an amplifier.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: December 4, 2007
    Assignee: IntelliServ, Inc.
    Inventors: David R. Hall, David S. Pixton, Michael Briscoe, James McPherson
  • Patent number: 7275594
    Abstract: A tool string stab guide for axially aligning first tool string components with second tool string components is disclosed. The stab guide has a body with an axial length along a longitudinal axis with a first and a second section. The first section of the body adapted for removable attachment within a diameter of a bore of a tool string component. The second section of the body has a centering element with a flow channel. The ratio of the axial length to the diameter is at least 2:1.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: October 2, 2007
    Assignee: IntelliServ, Inc.
    Inventors: David R. Hall, James McPherson, Patrick Hannigan
  • Patent number: 7243742
    Abstract: A retrievable drill pipe screen is adapted for releasable connection within a drill pipe string. The screen has a planar support plate for connecting a perforated tubular screen body to a fish neck wherein the plane of the planar support plate is generally parallel to the axis of the screen body. The orientation of the planar support plate provides minimal resistance to fluid flowing into the screen body while also reducing vortex effects that cause wear of screen components. Preferably, a wear distributor sleeve is fit within the screen body for protecting against wear of the screen caused by fluid flow and a retaining rod can secure the bottom of the screen body to the fish neck in the event that a lower portion of the screen body becomes detached.
    Type: Grant
    Filed: November 26, 2004
    Date of Patent: July 17, 2007
    Inventor: Ed A. Kutryk
  • Patent number: 7188688
    Abstract: An improved apparatus for filtering down-hole drilling fluids, insertable at any point in the drill string, i.e.: tool joints or within instrument subs. The filter element is a disk insertable between the two threadably connected ends of any two lengths of the drill string or adaptively placed within a tool joint containing down-hole tools such as data gathering instruments. The filter is essentially a disk having a series of expanding concentric radial slots and may be used in combination with an X collar support ring insert, combined with a sleeve having a landing ring or provided with a retrieval means.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: March 13, 2007
    Inventor: Robert J. LeJeune
  • Patent number: 7165633
    Abstract: A drilling fluid filter for placement within a bore wall of a tubular drill string component comprises a perforated receptacle with an open end and a closed end. A hanger for engagement with the bore wall is mounted at the open end of the perforated receptacle. A mandrel is adjacent and attached to the open end of the perforated receptacle. A linkage connects the mandrel to the hanger. The linkage may be selected from the group consisting of struts, articulated struts and cams. The mandrel operates on the hanger through the linkage to engage and disengage the drilling fluid filter from the tubular drill string component. The mandrel may have a stationary portion comprising a first attachment to the open end of the perforated receptacle and a telescoping adjustable portion comprising a second attachment to the linkage. The mandrel may also comprise a top-hole interface for top-hole equipment.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: January 23, 2007
    Assignee: IntelliServ, Inc.
    Inventors: David R. Hall, Joe Fox, Kory Garner
  • Patent number: 7108083
    Abstract: An apparatus and method for completing an interval of a wellbore while drilling comprises a drill string (52) having a drill bit (30) mounted on the lower end thereof. A completion assembly (50) is positioned around a section of the drill string (52) such that when the wellbore (32) is extended by rotating the drill bit (30) and advancing the drill string (52), the completion assembly (50) does not rotate. The advancement of the drill string (52) and rotation of the drill bit (30) is ceased when the completion assembly (50) has reached the desired interval of the wellbore (32). Thereafter, the drill string (52) is disconnected from the drill bit (30) for retrieval to the surface leaving the completion assembly (50) and the drill bit (30) downhole.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: September 19, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Floyd Randolph Simonds, Morris Wayne Cox, Terry Michael Dailey, Tommie Austin Freeman, Jiten Chatterji, R. Ashley Donaldson, Ronald G. Dusterhoft, Tommy Frank Grigsby, Travis T. Hailey, Jr., Jackie M. LaFontaine, Philip D. Nguyen, John Podowski, Alex Procyk, Sanjay Vitthal
  • Publication number: 20040206550
    Abstract: The invention provides a down-the-hole drill assembly having exhaust passages from upper and lower chambers past the inner end of a bit and through the body of the bit to exit through the bit face. The construction of the assembly and bit obviates a foot valve tube from the head of the bit and the disadvantages associated with this component.
    Type: Application
    Filed: March 23, 2004
    Publication date: October 21, 2004
    Inventor: Bernard Lionel Gien
  • Patent number: 6799645
    Abstract: A system for controlling sand has an expandable screen an an inner string to isolate the sand screen allowing for drilling fluids to be circulated to the bottom of the drilling assembly, before returning up the annulus in normal fashion. Both ends of the expandable screen are mount on an inner string. The inner string is integral with the internals of the bottomhole drilling assembly, allowing for retrieval thereof, including a pilot bit. Upon retrieval an isolation valve will close and seal thus providing sand control integrity in the well. Release from the sand screen will be by pumping a ball down the string and engaging this in a catcher to slim the sliding sleeve open, giving hydraulic access to the liner hanger and engaging slips in the previous casing. Further pressure will release the ball into a catcher, restoring communication through the drill string.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: October 5, 2004
    Assignee: Shell Oil Company
    Inventors: David Mason, Brian Tarr
  • Publication number: 20040108140
    Abstract: A system for controlling sand has an expandable screen and an inner string to isolate the sand screen allowing for drilling fluids to be circulated to the bottom of the drilling assembly, before returning up the annulus in normal fashion. Both ends of the expandable screen are mounted on an inner string by means of a swivel and seals, the former allowing for drill string rotation and the latter ensuring that drilling fluids do not circulate to the inside of the screen. The inner string is integral with the internals of the bottomhole drilling assembly, allowing for retrieval thereof, including a pilot bit. Upon retrieval an isolation valve will close and seal thus providing sand control integrity in the well. Release from the sand screen will be by pumping a ball down the string and engaging this in a catcher to slim the sliding sleeve open, giving hydraulic access to the liner hanger and engaging slips in the previous casing.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 10, 2004
    Inventors: David Mason, Brian Tarr
  • Publication number: 20040079554
    Abstract: A cup-shaped drill head with an inner conical surface (2) for force-locking connection with an exterior conical surface (3) of a driving drill shaft (4), which at the leading end changes over into a cup base (5) with a center point (P), whereby in the change over from the cup base (5) to the inner conical surface (2) a lesser curvature (K) is present than at the center point (P).
    Type: Application
    Filed: October 15, 2003
    Publication date: April 29, 2004
    Inventors: Udo Hauptmann, Peter Sternberger, Reinhard Schulz, Martin Richter
  • Publication number: 20040079551
    Abstract: A filter system for filtering drill bit cuttings, shavings, and other abrasive articles from a drilling mud that is passed through an oil or gas well drilling system is provided that includes an overhead drilling system, a drill string connected to the overhead drilling system, and a mud filter for filtering the drilling mud, wherein the mud filter is disposed within a drilling mud fluid passageway that extends from the entry point of the drilling mud into the overhead drilling system and the entry point of the drilling mud into the drill string.
    Type: Application
    Filed: June 3, 2003
    Publication date: April 29, 2004
    Inventor: Neil Herst
  • Patent number: 6719050
    Abstract: A tool for removing solid particles from a well after sand fracturing, drilling, etc. The tool includes a flapper valve assembly above a drill bit, a sand screen, and a screw pump. Fluid in the well, with the solid particles therein, is pumped into the tool by rotating the screw pump, wherein the fluid moves past the bit, across the flapper valve assembly, and through the sand screen. The solid particles stay in a cavity above the flapper valve, but the fluid moves further along the screw pump and is returned along the outside of the tool to the bit, to start the cycle over again. Over time, the cavity fills with solid particles, and the device is raised to the surface, where the accumulated solid particles are dumped. The device can be re-introduced into the well to remove more solid particles, if necessary.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: April 13, 2004
    Inventor: Kenneth E. Longacre
  • Patent number: 6715570
    Abstract: A two stage filter for drilling fluid using downhole tools filters solid materials from the drilling fluid and has a first, outer filter section and a second, inner filter section. A portion of the drilling fluid flowing through the first section is received by the second section, and passed on to the fluid using device of the tool. A flow area of the first filter section is greater than a flow area of the second filter section.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: April 6, 2004
    Assignee: Schumberger Technology Corporation
    Inventors: Geoff Downton, Christian Menger, Henry Phan
  • Publication number: 20040050591
    Abstract: A two stage filter for drilling fluid using downhole tools filters solid materials from the drilling fluid and has a first, outer filter section and a second, inner filter section. A portion of the drilling fluid flowing through the first section is received by the second section, and passed on to the fluid using device of the tool. A flow area of the first filter section is greater than a flow area of the second filter section.
    Type: Application
    Filed: September 17, 2002
    Publication date: March 18, 2004
    Inventors: Geoff Downton, Christian Menger, Henry Phan
  • Publication number: 20030150616
    Abstract: An apparatus for filtering a drilling fluid. The apparatus comprises a cylindrical flange member having a first and second passage and a cylindrical sleeve having an internal fishing neck. An attachment pin attaches the flange member to the cylindrical sleeve. The apparatus further comprises a screen member attached to the cylindrical sleeve. In one embodiment, the first and second passage are disposed off-centered so that four bore holes are created. The attachment pin cooperates with a groove formed on the sleeve's outer diameter surface. The apparatus may further include a pulling tool. The pulling tool contains a plurality of dog members disposed about a mandrel, and a spring that urges the dog members into engagement with a protuberance on the mandrel. The apparatus further comprises a shear pin attaching the dog members to the mandrel and wherein the shear pin is disposed within a slot so that the dog members can move axially relative to the mandrel.
    Type: Application
    Filed: February 14, 2002
    Publication date: August 14, 2003
    Inventor: Benny Donald Mashburn
  • Patent number: 6598685
    Abstract: An apparatus for filtering a drilling fluid. The apparatus comprises a cylindrical flange member having a first and second passage and a cylindrical sleeve having an internal fishing neck. An attachment pin attaches the flange member to the cylindrical sleeve. The apparatus further comprises a screen member attached to the cylindrical sleeve. In one embodiment, the first and second passage are disposed off-centered so that four bore holes are created. The attachment pin cooperates with a groove formed on the sleeve's outer diameter surface. The apparatus may further include a pulling tool. The pulling tool contains a plurality of dog members disposed about a mandrel, and a spring that urges the dog members into engagement with a protuberance on the mandrel. The apparatus further comprises a shear pin attaching the dog members to the mandrel and wherein the shear pin is disposed within a slot so that the dog members can move axially relative to the mandrel.
    Type: Grant
    Filed: February 14, 2002
    Date of Patent: July 29, 2003
    Inventor: Benny Donald Mashburn
  • Patent number: 6431292
    Abstract: The invention relates to a device (1) for the drilling, notably by percussion or rotary-percussion drilling, and draining of holes in soil or rock. A drill bit (2, 3) mounted on a drill rod (4) creates a bore hole and a jacket tube (6) is coupled to the drill rod (4) or the drill bit (2, 3). In the area adjacent to the drill bit (2, 3) the jacket tube (6) has at least one through hole which opens into an annular space embodied between the drill rod and the jacket tube. In the end area adjacent to the drill bit (2, 3) the jacket tube (6) is surrounded by at least one filter tube (7) having a plurality of through holes or slits (8) which are distributed especially evenly across its circumference. This allows for correspondingly safe and reliable drainage during boring, using simple measures.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: August 13, 2002
    Assignees: Techno Entwicklungs - und Vertriebs GmbH, “Alwag” Tunnelausbau Gellschaft mbH
    Inventors: Josef Mocivnik, Karl Bohm
  • Publication number: 20010013427
    Abstract: The invention relates to a jacket tube (6) for a device for drilling holes and forming an anchorage in the earth or rock. The inventive jacket tube (6) is coupled with a drill pipe (3) and/or a drill bit (1) or a drill hammer and is configured with a plurality of through openings across its periphery. Once the borehole (2) has been made, or after an anchor has been introduced, the jacket tube can be filled with a hardenable suspension. According to the invention, the jacket tube consists of at least one expanded metal element (6) which has evenly distributed through openings (9) and connecting elements (7, 8), especially sleeves, at the ends for connecting to a drill bit (1) and/or other jacket tube elements (6). The borehole (2) is therefore easy to produce and the jacket tube (6) can be anchored securely.
    Type: Application
    Filed: April 4, 2001
    Publication date: August 16, 2001
    Inventors: Josef Mocivnik, Karl Bohm
  • Publication number: 20010004025
    Abstract: The invention relates to a device (1) for the drilling, notably by percussion or rotary-percussion drilling, and draining of holes in soil or rock. A drill bit (2, 3) mounted on a drill rod (4) creates a bore hole and a jacket tube (6) is coupled to the drill rod (4) or the drill bit (2, 3). In the area adjacent to the drill bit (2, 3) the jacket tube (6) has at least one through hole which opens into an annular space embodied between the drill rod and the jacket tube. In the end area adjacent to the drill bit (2, 3) the jacket tube (6) is surrounded by at least one filter tube (7) having a plurality of through holes or slits (8) which are distributed especially evenly across its circumference. This allows for correspondingly safe and reliable drainage during boring, using simple measures.
    Type: Application
    Filed: February 15, 2001
    Publication date: June 21, 2001
    Inventors: Josef Mocivnik, Karl Bohm
  • Patent number: 6207114
    Abstract: The invention provides a permeable treatment wall comprising one or more high-permeability columns, as well as a methods for preparing such a permeable treatment wall.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: March 27, 2001
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Jacqueline W. Quinn, Christan A. Clausen, Debra R. Reinhart, Manoj B. Chopra
  • Patent number: 5372208
    Abstract: A pair of elongated cylindrical members are constructed with first and second collars extending axially beyond their adjoining ends. The first and second collars have adjoining indentations and projections at their end edges which are adapted to interlock with one another so as to prevent rotation of the two elongated members with respect to one another. A coupler is removably fitted over the exterior of the first and second collars and holds them together against axial movement with respect to one another. The collars are each welded to the axial ends of the first and second cylindrical members. A sampling tube section is provided having slots to allow the fluid to be sampled to enter the internal bore of the tube. The slots are axial, and are spaced apart both angularly and axially. The slots are tapered so as to have a narrower width at the outer surface of the tube than at the inner surface of the bore.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: December 13, 1994
    Assignee: Gold Star Manufacturing, Inc.
    Inventor: Roy J. Mefferd
  • Patent number: 5123209
    Abstract: The apparatus includes a shelf-like bracket which mounts to the exposed foundation of a building or other structure. The portion of the bracket which fits underneath the foundation is adjustable to permit secure fitting. The bracket includes a vertically mounted cylindrical member adapted for receiving and holding piers (pipes). A first housing is mounted vertically atop the bracket and is adapted to support a hydraulic cylinder for driving piers into the subsurface surrounding the foundation. Each pier is adequately secured to a preceding pier prior to being driven into the subsurface. Connected piers are consecutively driven into the subsurface to a predetermined point. The first housing is removed and a second driving device is used to drive the piers further into the subsurface. Grout is forced by pressure through the interior of the piers and out through the base pier's apertures, thereby forming a grout base at the base of the piers.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: June 23, 1992
    Inventor: W. T. Nally
  • Patent number: 5097914
    Abstract: A method and device is used for producing uncontaminated water samples when drilling a well, using a hollow bar for transporting drilling fluid whose conduits consist of nonperforated tubes and at least one perforated tube; the water sample is pumped through filter sand from a water-conducting horizontal, approached by the boring bar, via a perforated insert positioned in the latter after the filter sand is deposited between the perforated tube, the adjacent nonperforated conduit and the bore wall and incorporated into the system as a filter. The bore up to the first water-conducting horizontal is drilled with the closed perforated insert and the first water sample obtained. After closing the perforations, drilling is continued and the filter sand removed until the next water-conducting horizontal is reached, from which a second water sample is taken after reopening the perforations.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: March 24, 1992
    Assignee: Terratronic Vertrieb von Zielbohrsystemen GmbH
    Inventor: Gerhard Grotendorst
  • Patent number: 4750571
    Abstract: A screen placement apparatus and system wherein the apparatus includes a motor for providing rotational torque to an auger received within a ground screen and a disposable cutting tip having a cutting diameter equal to or greater than the outer diameter of the screen is connected to the end of the auger. The screen is placed into the ground by simultaneously drilling the hole with the disposable cutting tip, drawing the drill cuttings up through the screen with the auger, and inserting the screen into the hole. The drill cuttings, drawn up through the hole, are discharged through discharge openings. After the desired depth is reached, the auger and motor are longitudinally moved with respect to the screen and cutting tip thereby permanently disconnecting the disposable cutting tip and leaving it within the ground. The auger is, thereafter, retracted from within the ground screen.
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: June 14, 1988
    Inventor: Marvin D. Geeting
  • Patent number: 4693318
    Abstract: A well screen filter is formed with inner and outer concentric screens defining an annular filtering space filled with filtrating medium. A lower perforated plate supporting the filtrating materials has passages allowing transit of fine particles entrained into the filter with formation fluid to a sedimentation tube preventing clogging of the filtering pack. A top perforated plate may be provided to prevent clogging of upper back areas. Openings in the outer screen extend elevationally higher than corresponding openings in the inner screen so that as the filtrating materials compact during production the inner screen openings always remain covered by the pack. A method of installing the sand control filter is also disclosed, utilizing a wash down media of glass or polymer spheres surrounding the filter to assist in stabilization of formation sand when the well is initially placed in production.
    Type: Grant
    Filed: October 10, 1985
    Date of Patent: September 15, 1987
    Assignee: Well Improvement Specialists, Inc.
    Inventor: Ljubisa M. Petrovic
  • Patent number: 4681163
    Abstract: A Wellbore sand control and filtration system, method, and apparatus for controlling formation sands and for preventing the influx of formation sands into the wellbore, into the production string, and into the produced fluids, the system including introducing smooth particles into the wellbore with limited or no pumping either of particles or of fluids with the particles, introducing the production string into the wellbore with the bottom of the string being introduced into the accumulation of smooth particles, the bottom of the string having connected thereto a tool permitting flow of formation fluids into the production string, the tool moving into the accumulation of particles forcing particles into the perforation tunnels extending from the annulus through the casing and cement into the formation. The system, method, and apparatus may also be used in an open uncased uncemented hole. A tool is provided for facilitating the movement of the string through the particles.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: July 21, 1987
    Assignee: Well Improvement Specialists, Inc.
    Inventors: John P. Guidry, Lee Roy C. Gavranovic
  • Patent number: 4649996
    Abstract: A well screen-filter includes a pair of substantially spaced concentric screens defining an annular filtrating space therebetween, connected with perforated joint(s) closing the lower end of the filtrating space. The annular space is filled with filtrating materials (gravel or synthetic balls) as a pack and an upper joint acts as a cover cap of the annular filtrating space to seal the pack. The lower perforated joint includes holes for passage of fine particles to a sedimentation tube, preventing clogging of the pack and enabling proper functioning of the double walled screen-filter.
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: March 17, 1987
    Inventors: Bozidar Kojicic, deceased, by Djurdjina Kojicic, legal representative
  • Patent number: 4583594
    Abstract: A well screen-filter includes a pair of substantially spaced concentric screens defining an annular filtrating space therebetween, connected with perforated joint(s) closing the lower end of the filtrating space. The annular space is filled with filtrating materials (gravel or synthetic balls) as a pack and an upper joint acts as a cover cap of the annular filtrating space to seal the pack. The lower perforated joint includes holes for passage of fine particles to a sedimentation tube, preventing clogging of the pack and enabling proper functioning of the double walled screen-filter.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: April 22, 1986
    Inventor: Bozidar Kojicic
  • Patent number: 4526230
    Abstract: A well screen-filter includes a pair of substantially spaced concentric screens defining an annular filtering space therebetween, connected with perforated joint(s) closing the lower end of the filtrating space. The annular space is filled with filtrating materials (gravel or synthetic balls) as a pack and an upper joint acts as a cover cap of the annular filtrating space to seal the pack. The lower perforated joint includes holes for passage of fine particles to a sedimentation tube, preventing clogging of the pack and enabling proper functioning of the double walled screen-filter.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: July 2, 1985
    Assignee: Seminole Energy Tools, Inc.
    Inventor: Bozidar Kojicic