| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | Rotary drill bits and drilling tools having protective structures on longitudinally trailing surfaces | US12417104 | 2009-04-02 | US08096373B2 | 2012-01-17 | Suresh G. Patel; Ben L. Kirkpatrick; Scott E. Mayer |
| A rotary drill bit or other drilling tool for drilling or reaming through subterranean formation and comprising a body comprising a distal end and gage areas near a proximal end thereof and comprising longitudinally upward extensions of a plurality of blades or legs. A longitudinally trailing, radially inwardly extending surface is associated with at least some gage pads or legs at the longitudinally trailing ends thereof. Protective structures in the form of superabrasive elements comprising a plurality of thermally stable polycrystalline diamonds, or so-called “TSPs” (thermally stable products) are secured to a trailing surface of at least one gage pad. PDC elements may be employed in combination with the TSPs. Non-diamond structures may also be employed, in lieu of or in conjunction with diamond structures, particularly if drilling of ferrous metal casing components is contemplated. | ||||||
| 42 | Passive and active up-drill features on fixed cutter earth-boring tools and related systems and methods | US12133988 | 2008-06-05 | US08047309B2 | 2011-11-01 | James L. Overstreet; Robert J. Buske; Kenneth E. Gilmore; John H. Stevens |
| Earth-boring tools include at least one up-drill feature disposed on a transition surface so as to be passive during down drilling and active during up drilling and/or back reaming operations. Systems for down drilling and up drilling with drill bits comprising one or more up-drill features are also disclosed. Furthermore, methods for forming a borehole with an earth-boring tool including such up-drill features and for forming an earth-boring tool comprising such up-drill features are also disclosed. | ||||||
| 43 | HYDROCARBON PRODUCTION FROM MINES AND TUNNELS USED IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS | US12626434 | 2009-11-25 | US20100071904A1 | 2010-03-25 | David Booth Burns; Horng Jye (Jay) Hwang; Jochen Marwede; Duncan Charles MacDonald; Robert George Prince-Wright |
| A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from one or more shafts. A production system is located in at least one of the tunnels. The production system is configured to produce fluids from the formation that collect in the tunnel. | ||||||
| 44 | MINES AND TUNNELS FOR USE IN TREATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS | US12626420 | 2009-11-25 | US20100071903A1 | 2010-03-25 | Robert George Prince-Wright; Jochen Marwede; Horng Jye (Jay) Hwang; Duncan Charles MacDonald; David Booth Burns |
| A system for treating a subsurface hydrocarbon containing formation includes one or more substantially horizontal or inclined tunnels extending from at least one shaft. One or more heater sources are located in one or more heater wellbores coupled to at least one of the substantially horizontal or inclined tunnels. | ||||||
| 45 | ROTARY DRILL BITS AND DRILLING TOOLS HAVING PROTECTIVE STRUCTURES ON LONGITUDINALLY TRAILING SURFACES | US12417104 | 2009-04-02 | US20090308663A1 | 2009-12-17 | Suresh G. Patel; Ben L. Kirkpatrick; Scott E. Mayer |
| A rotary drill bit or other drilling tool for drilling or reaming through subterranean formation and comprising a body comprising a distal end and gage areas near a proximal end thereof and comprising longitudinally upward extensions of a plurality of blades or legs. A longitudinally trailing, radially inwardly extending surface is associated with at least some gage pads or legs at the longitudinally trailing ends thereof. Protective structures in the form of superabrasive elements comprising a plurality of thermally stable polycrystalline diamonds, or so-called “TSPs” (thermally stable products) are secured to a trailing surface of at least one gage pad. PDC elements may be employed in combination with the TSPs. Non-diamond structures may also be employed, in lieu of or in conjunction with diamond structures, particularly if drilling of ferrous metal casing components is contemplated. | ||||||
| 46 | DUAL MOTOR SYSTEMS AND NON-ROTATING SENSORS FOR USE IN DEVELOPING WELLBORES IN SUBSURFACE FORMATIONS | US12422084 | 2009-04-10 | US20090272578A1 | 2009-11-05 | Duncan Charles MacDonald |
| A method for forming a subsurface wellbore is disclosed. The method includes operating a drilling string in a first direction of rotation. A first motor located near the end of the drilling string is operated in a direction of rotation opposite that of the drilling string. A drill bit is rotated using a second motor that is coupled to the first motor. | ||||||
| 47 | HEATED FLUID FLOW IN MINES AND TUNNELS USED IN HEATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS | US12422110 | 2009-04-10 | US20090272533A1 | 2009-11-05 | David Booth Burns; Horng Jye (Jay) Hwang; Jochen Marwede; Duncan Charles MacDonald; Robert George Prince-Wright |
| A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. A first substantially horizontal or inclined tunnel extends from one or more of the shafts. A second substantially horizontal or inclined tunnel extends from one or more of the shafts. Two or more heat source wellbores extend from the first tunnel to the second tunnel. The heat source wellbores are configured to allow heated fluid to flow through the wellbores from the first tunnel to the second tunnel. | ||||||
| 48 | ELECTRICAL CURRENT FLOW BETWEEN TUNNELS FOR USE IN HEATING SUBSURFACE HYDROCARBON CONTAINING FORMATIONS | US12422119 | 2009-04-10 | US20090272526A1 | 2009-11-05 | David Booth Burns; Horng Jye (Jay) Hwang; Jochen Marwede; Duncan Charles MacDonald; Robert George Prince-Wright |
| A system for treating a subsurface hydrocarbon containing formation includes one or more shafts. A first substantially horizontal or inclined tunnel extends from one or more of the shafts. A second substantially horizontal or inclined tunnel extends from one or more of the shafts. Two or more heat source wellbores extend from the first tunnel to the second tunnel. The heat source wellbores are configured to allow electrical current to flow between the heat source wellbores. | ||||||
| 49 | Rock drill bit having retrac teeth and method for its manufacturing | US09796440 | 2001-03-02 | US06494275B2 | 2002-12-17 | Bengt Åsberg; Kenneth Larsson; Bertil Ederyd |
| A rock drill bit for percussive drilling, especially top hammer drilling, includes a bit head provided with front rock crushing buttons and a skirt. The bit head is provided with a number of grooves formed in the outside of the skirt and extending in the axial direction of the drill bit. Protruding lands are defined between the grooves, which likewise extend in the axial direction. Axially rearward ends of at least some of the lands are formed with retrac teeth. Each retrac tooth has a cutting edge extending along an outer circumference of the skirt. | ||||||
| 50 | Protected lubricant reservoir for sealed earth boring drill bit | US09932540 | 2001-08-17 | US20010050187A1 | 2001-12-13 | Robert H. Slaughter JR.; Peter T. Cariveau; Kirk A. Norris; Roger Didericksen; William M. Conn |
| A rotary cone rock bit, comprises a bit body including a plurality of legs extending therefrom, each of the legs having an outer surface that includes a leading surface and a trailing surface, a roller cone rotatably supported on each of the legs, a bearing system between each cone and the leg on which it is supported, and a lubricant reservoir in fluid communication with the bearing system. The reservoir can be provided with a wear resistant plug, if desired. In the present bit, the reservoir has at least one opening positioned in either the leg's leading surface, trailing surface, center surface, shoulder surface or some combination of these. Alternatively, the reservoir can be formed inside the bit body, preferably by means of a canister, which can be provided with venting means as desired. | ||||||
| 51 | Protected lubricant reservoir with pressure control for sealed bearing earth boring drill bit | US09487947 | 2000-01-18 | US06206110B1 | 2001-03-27 | Robert H. Slaughter, Jr.; Peter T. Cariveau; Kirk A. Norris; Roger Didericksen; William M. Conn |
| A rotary cone rock bit, comprises a bit body including a plurality of legs extending therefrom, each of the legs having an outer surface that includes a leading surface and a trailing surface, a roller cone rotatably supported on each of the legs, a bearing system between each cone and the leg on which it is supported, and a lubricant reservoir in fluid communication with the bearing system. The reservoir can be provided with a wear resistant plug, if desired. In the present bit, the reservoir can be pressured-balanced with fluid in the bit plenum or the borehole annulus, or maintained at some desired differential with respect to either of these. Alternatively, the reservoir can be formed inside the bit body, preferably by means of a canister, which can be provided with venting means as desired. | ||||||
| 52 | Rock bit borhole back reaming method | US185643 | 1994-01-24 | US5415243A | 1995-05-16 | Richard C. Lyon; William M. Conn |
| A method to back ream a borehole drilled with a roller cone drill bit is taught. Protruding hard metal cutting inserts are affixed on the upper outside diameter tapered shoulder of each of the bit legs. If the borehole closes to a smaller diameter than the bit gage diameter or loose rock rubble packs around the upper portion of the bit, the protruding cutting inserts fixed on the upper leg tapered shoulder portion back ream the borehole by lifting and rotating the bit. | ||||||
| 53 | Percussion drill bit for rock perforators | US5436 | 1986-11-13 | US4771834A | 1988-09-20 | Siegfried Treitz |
| Percussion drill bit for rock perforators is provided whose frontal face is covered by a plurality of hard-metal studs, whereby a plurality of studs are positioned to form a group, there being several of these groups present and each of the so-called groups being at a distance from one another at least circumferentially and separated through circulation-medium channels, and further provided with at least one axial center channel located roughly in a center of the frontal face and opening into the circulation-medium channels, characterized in that each group consists of only one row of studs (1) arranged on sloped protruding drilling facets (4), in that the drilling facets (4) run against the rotation direction (A) of the drill bit, at an angle with respect to the radius, and in that the circulation-medium channels (2) formed in the frontal face widen starting from the center of the drill bit, radially towards the outside. | ||||||
| 54 | Downhole shearers | US143453 | 1980-04-24 | US4362217A | 1982-12-07 | Frederick Fletcher |
| The present specification describes and claims a downhole casing shearer for use in drilling bore holes. The casing shearer comprises an elongate, generally cylindrical sub-member which is connected between a drilling bit and a drill rod string and which engages within a hollow cylindrical shearer, the trailing end of the shearer being connected to a conventional bore hole liner, so that the shearer may rotate about its longitudinal axis with the liner stationary. The sub-member and shearer are interlocked by a releasable locking mechanism which prevents relative rotation therebetween but which allows both for the axial drilling pressure to be applied to the shearer and the shearer to be lifted, and for the drilling bit, sub-member and rod string to be lifted through the liner leaving the shearer and liner in the bore hole, when the locking mechanism is released. | ||||||
| 55 | Anti-collaring structure for impact bit | US82693 | 1979-10-09 | US4262762A | 1981-04-21 | Robert P. Potratz |
| Rib structure for an impact type rock drilling bit, spirally oriented on the external surface of the bit to move particulate matter forwardly relative to the bit when it be turned in its normal drilling direction, to aid the process of extraction of the bit from a drilled hole. | ||||||
| 56 | Pick having limited angular movement, opposed directional cutting faces, and trunnion mounting therefor | US59493466 | 1966-11-16 | US3413036A | 1968-11-26 | PENTITH GERALD R O; FREDERICK WEBSTER |
| 57 | Rock drill bit | US3128835D | US3128835A | 1964-04-14 | ||
| 58 | Auger reaming head | US1129660 | 1960-02-26 | US3072205A | 1963-01-08 | GOVIN CHARLES T |
| 59 | Drill rod | US72131158 | 1958-03-13 | US2958513A | 1960-11-01 | BENNETT PAUL H |
| 60 | Retrievable stabilizer for well bores | US59064956 | 1956-06-11 | US2869827A | 1959-01-20 | ORR COOK DE |
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