Quotables
"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8051925 | Core barrel assemblies with braking devices A braking device for drilling operations in a borehole includes a brake retainer having a plurality of brake connector openings defined therein, a body member having a tapered surface having a first diameter and a second diameter, the second diameter being larger th... | 11/08/2011 |
| 7431107 | Coring bit with uncoupled sleeve A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sl... | 10/07/2008 |
| 7383899 | Spearhead assembly A spearhead assembly (10) comprises a base (12) provided with a slot (14) at one end (16) which opens onto an outer surface (13) of the base (12). The outer surface (13) is composed of three contiguous surface portion... | 06/10/2008 |
| 7350584 | Formed tubulars A method of lining a drilled bore comprises running a tubular into a drilled bore and then corrugating the tubular in the bore. The tubular may also be expanded in the bore. In other aspects of the invention the tubular is corrugated prior to running into the bore a... | 04/01/2008 |
| 7328757 | All terrain vehicle powered mobile drill A method includes powering a drill motor with power derived from an all terrain vehicle (ATV) engine and controlling the drill motor. An apparatus includes a ATV with a power takeoff configured to deliver power from an ATV engine. A drill mast is moveably coupled to... | 02/12/2008 |
| 7320373 | One-step directional coring or drilling system An assembly for sidetracked drilling in a wall of a borehole previously drilled or cored in a formation includes a guide element and an expansible device fixed to the front end of the guide element operable to be selectively expanded by an actuation means. A sidetra... | 01/22/2008 |
| 7314101 | Inner core barrel head assembly for core tube within a drill string Inner core barrel head assembly (10) includes an upper latch body (24), a plurality of latching balls (26) which are retained in the latch body (24) and a locking sleeve (28) disposed within the latch body (24). The sleeve (... | 01/01/2008 |
| 7293613 | Logging-while-coring method and apparatus A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wir... | 11/13/2007 |
| 7255016 | Soil sampler apparatus and method An apparatus removes soil samples at intervals over a field of interest. The apparatus comprises a sampling assembly (60) that rotates on a track (32) riding on a plurality of idler wheels (29, 31). A probe (66) extends and retracts under... | 08/14/2007 |
| 7240573 | Sampling device and sampling method A sampling device (1) comprises a sampling container (4) for reception of a sample volume and a connecting piece (7) adapted to be connected to a fitting (2) mounted on a processing installation. The connecting piece (7) has a samp... | 07/10/2007 |
| 7231991 | Apparatus and methods for sponge coring A sponge core barrel is disclosed for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereo... | 06/19/2007 |
| 7172036 | Soil sample containment device and method A soil sample containment device is provided which allows soil samples to be contained within individual sections of a soil sampler liner. The device includes first and second end caps for covering and sealing the respective ends of the soil sampler liner section. E... | 02/06/2007 |
| 7168508 | Logging-while-coring method and apparatus A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wir... | 01/30/2007 |
| 7168606 | Method of mitigating inner diameter reduction of welded joints Aspects of the present invention provide methods and apparatus for connecting two tubulars using a welding process with reduced inner diameter flash. The method includes connecting an end of a first expandable tubular to an end of a second expandable tubular using a... | 01/30/2007 |
| 7117958 | One-step directional coring or drilling system An assembly for sidetracked drilling in a wall of a borehole previously drilled or cored in a formation includes a guide element and an expansible device fixed to the front end of the guide element operable to be selectively expanded by an actuation means. A sidetra... | 10/10/2006 |
| 7117939 | Percussion hammer bit retainer apparatus A bit retention apparatus for the use of retrieving the hammer bit in cases of shankage. The apparatus incorporates a dual sleeve design that fits over the chuck and the extended head section of the hammer bit. The first, “inner” sleeve has two or more ring piec... | 10/10/2006 |
| 7083209 | Hydraulic overshot tool without a nozzle, and method of retrieving a cylinder The present invention provides an improved hydraulic overshot tool. The overshot tool mechanically engages a cylindrical body downhole attempting to be retrieved. In the event retrieval is unsuccessful, the overshot tool may be hydraulically released from the cylind... | 08/01/2006 |
| 7055626 | Core bit having features for controlling flow split A core bit for cutting core samples in subterranean formations. The core bit has interior geometric features configured to control the quantity of drilling fluid, or flow split, flowing into a narrow annulus defined by an inside diameter of the core bit and an outsi... | 06/06/2006 |
| 7004265 | Apparatus and methods for sponge coring A sponge core barrel for use in performing sponge coring and methods of assembling the sponge core barrel, as well as methods of performing sponge coring. The sponge core barrel includes an outer barrel assembly, a core bit secured to a lower end thereof, and an inn... | 02/28/2006 |
| 6997493 | Lockable overshot Lockable overshot (10) includes an elongated body (12), lifting dogs (14a, 14b) and a locking sleeve (16). Ends (18) of the lifting dogs (14) are configured for latching a conventional spearhead point th... | 02/14/2006 |
| 6942046 | Bore bit for very hard material An apparatus including a bore bit comprising a bottom part having an active bottom face and a top face substantially parallel to the active face; a top part fixed to suspension cables and having a bottom face facing the top face of the bottom part; a member for limi... | 09/13/2005 |
| 6935429 | Flash welding process for field joining of tubulars for expandable applications The present invention generally relates to methods of connecting two expandable tubulars. In one aspect, the method includes flash welding the ends of the expandable tubulars together. Thereafter, the connected tubulars are lowered into the wellbore for expansion. T... | 08/30/2005 |
| 6935430 | Method and apparatus for expanding a welded connection The present invention generally relates to methods of connecting two expandable tubulars. In one aspect, the method includes flash welding the ends of the expandable tubulars together. Thereafter, the connected tubulars are lowered into the wellbore for expansion. T... | 08/30/2005 |
| 6820703 | Locking device for a wire line core drilling system and a method for core drilling The present invention relates to a locking device (4) for a wire line core drilling system comprising an inner tube (2) by means of which core samples are collected, and an outer tube (1) connected to a drill bit, which locking device is applied... | 11/23/2004 |
| 6659204 | Method and apparatus for recovering core samples under pressure A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase a... | 12/09/2003 |
| 6425449 | Up-hole pump-in core barrel apparatus The drilling apparatus includes a wire line core barrel head assembly that has a latch body seatable on a drill string landing shoulder and retained in a latch seated position by a latch assembly spring urged to a latch seated position, fluid seals on the... | 07/30/2002 |
| 6378631 | Apparatus for recovering core samples at in situ conditions A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase a... | 04/30/2002 |
| 6230825 | Apparatus for recovering core samples under pressure A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase a... | 05/15/2001 |
| 6216804 | Apparatus for recovering core samples under pressure A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase a... | 04/17/2001 |
| 6089335 | Positive latch core barrel apparatus The drilling apparatus includes a wire line core barrel inner tube assembly movable to a drill string bit end to have its landing ring seat on the drill string landing shoulder and its latches latchingly retain the assembly adjacent the bit end. The assem... | 07/18/2000 |
| 6029758 | Retractable core barrel valving apparatus The drilling apparatus includes a wire line core barrel having a head assembly and a drilling tool connected to the head assembly. The head assembly includes a latch body with a landing shoulder seatable on the drill string landing ring, latches seatable ... | 02/29/2000 |
| 6006844 | Method and apparatus for simultaneous coring and formation evaluation A core barrel having an inner tube for coring and, alternately, a center plug assembly for closing the throat of the core bit at the bottom of the assembly for drilling in lieu of coring. The inner tube assembly and plug assembly are disposable and retrie... | 12/28/1999 |
| 5934393 | Core barrel apparatus The core barrel apparatus includes a wire line core barrel inner tube having a latch body main body portion and an inner portion threaded together to cooperatively provide a radial outer groove mounting a landing ring seatable on the drill string landing ... | 08/10/1999 |
| 5799742 | Core drilling latch assembly A core drilling latch assembly for use in terrestrial core drilling operations. The latch assembly incorporates features and elements which affect the flow of drilling fluids past the latch assembly and toward the drill bit, depending upon whether the lat... | 09/01/1998 |
| 5601152 | Vibrator core drilling apparatus A drilling tool, for example a core barrel inner tube assembly, includes a latch body mounting latches for movement into a latch seat to removably retain the assembly adjacent to a drill string bit end and to impart rotary movement to the latch body as th... | 02/11/1997 |
| 5568838 | Bit-stabilized combination coring and drilling system A core barrel having an inner tube for coring and, alternately, a center plug assembly or closing the throat of the core bit at the bottom of the assembly for drilling in lieu of coring. The inner tube assembly and plug assembly are disposable and retriev... | 10/29/1996 |
| 5450913 | Continuous soil sampling system and method The invention provides an apparatus and method for taking samples of soil and other materials in an efficient manner as well as for maintaining a high level of integrity of the samples. Using a wire line and a release and retrieve assembly, the sampling t... | 09/19/1995 |
| 5351765 | Coring assembly and method Coring apparatus and method are disclosed which provide for hydraulic latching of an inner core barrel within an outer core barrel. The apparatus includes a valve face disposed around the inner core barrel and valve seat disposed around the bore of the ou... | 10/04/1994 |
| 5325930 | Overcenter toggle latch apparatus A drilling tool, for example a core barrel inner tube assembly or a drilling bit, is attached to the inner end of a latch body which is removably seatable on a landing shoulder of a drill string. The inner end of the latch body mounts a drilling tool such... | 07/05/1994 |
| 5301759 | Method and apparatus for core-sampling subsurface rock formations An electrically-driven downhole coring method and apparatus which is powered by and conveyed to and from the bottom of the corehole by means of a heavy-duty electromechanical cable. The downhole core-sampling apparatus is equipped with a combination reame... | 04/12/1994 |
