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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
121	DRILLING EQUIPMENT DEVICE ESPECIALLY ARRANGED FOR REAMING A BOREHOLE IN A ROCK FORMATION AND METHOD OF REAMING A BOREHOLE IN A ROCK FORMATION	EP14772571.7	2014-03-18	EP2976486B1	2018-08-22	HAUGHOM, Per Olav
A drilling equipment device (2') for use when reaming a pilot hole (13) in a rock formation (1), in which a drilling unit (2) comprises a rotatable drill-bit structure (15) fitted with roller cutters (12) which are arranged to break up the rock formation (1), the drill-bit structure (15) and an associated housing (16) being supported on a drill stem (21) which is connected in a rotationally rigid manner to a non-rotatable drill string (4). A method of reaming a pilot hole (13) in a rock formation (1) is described as well.
122	HYBRID MECHANICAL-LASER DRILLING EQUIPMENT	EP14906667	2014-11-26	EP3186468A4	2018-04-25	SAMUEL ROBELLO; ANIKET ANIKET
In accordance with embodiments of the present disclosure, systems and methods for utilizing hybrid mechanical-laser drilling tools, such as drill bits and hole-openers, are provided. Such drilling tools may include mechanical cutters in addition to laser cutting mechanisms designed to focus laser beams toward a subterranean formation. The mechanical cutters and laser cutting mechanisms may work in combination to advance a wellbore through the subterranean formation. The drilling tools may be controlled to vary the amount of energy output through the mechanical drilling via the cutters and through the laser-assisted drilling via the lasers.
123	METHODS, SYSTEMS, AND DEVICES FOR MANIPULATING CUTTING ELEMENTS FOR EARTH BORING DRILL BITS AND TOOLS	EP10741596.0	2010-02-08	EP2396495B1	2018-03-28	LUCE, David, Keith; WIRTH, Sean, W.; MASSEY, Alan, J.; PARROTT, Crystal, A.
Methods include one or more of robotically positioning a cutting element on an earth-boring tool, using a power-driven device to move a cutting element on an earth-boring tool, and robotically applying a bonding material for attaching a cutting element to an earth-boring tool. Robotic systems are used to robotically position a cutting element on an earth-boring tool. Systems for orienting a cutting element relative to a tool body include a power-driven device for moving a cutting element on or adjacent the tool body. Systems for positioning and orienting a cutting element on an earth-boring tool include such a power-driven device and a robot for carrying a cutting element. Systems for attaching a cutting element to an earth-boring tool include a robot carrying a torch for heating at least one of a cutting element, a tool body, and a bonding material.
124	DURABLE ROCK BIT FOR BLAST HOLE DRILLING	EP17185066.2	2017-08-07	EP3282083A1	2018-02-14	Beavers, Tony Jack; Kongamnach, Amnach
A rock bit (1) for blast hole drilling includes: a bit body (2) having a coupling (5) formed at an upper end thereof, a plurality of lower legs (6a), a dome (7) formed between the legs, and a bore formed through the coupling and the dome; a plurality of skirts (12a), each skirt covering a gap formed between adjacent legs and each skirt mounted to edges of adjacent legs; a plurality of roller cones (3a), each rotary cone rotatably mounted to a respective bearing shaft (8b) of a respective leg; a row of gage cutters (10g) mounted to each roller cone; a row of inner cutters (10a,10b) mounted to each roller cone; one or more nose cutters (10n) mounted to each roller cone; and a center jet (4) secured in the bore. Each cutter is an insert.
125	EXCAVATING HEAD	EP16719129.5	2016-03-11	EP3268568A1	2018-01-17	PALMIERI, Silvano
The excavating head (1) comprises: an attachment element (2) to a driving machine to place the head (1) in rotation around a central axis (5); a plate-shaped body (7) connected to the attachment element (2) and having a first main face (8) and a second main face (10) opposite to each other, the first main face (8) being facing to the excavation front (9) and the second main face (10) being facing to the attachment element (2); - at least an excavation tool (11) associated with the plate-shaped body (7) so as to protrude at least partly from the first main face (8); and suction means (14, 15, 16) of the excavated material (17) associated with the plate-shaped body (7) and comprising: a storage chamber (14) of the excavated material (17); - at least an extraction pipe (15) of the excavated material (17) crossing from side to side the plate-shaped body (7) and terminating in the storage chamber (14).
126	WEAR RESISTANT PLATES ON A LEADING TRANSITIONAL SURFACE OF THE LEG FOR A ROTARY CONE DRILL BIT	EP14778535.6	2014-03-05	EP2981666A1	2016-02-10	HARRINGTON, David, Michel; KONGAMNACH, Amnach; FIERRO, Cesar,A.
In an embodiment, a rotary cone drill bit comprises: a body, a leg depending from the body, a bearing shaft extending from the leg and a cone mounted to the bearing shaft. The leg includes a leading transitional surface. A bottom surface of a hard material plate is attached to a substantially conforming surface of the leg in a position where the hard material plate is disposed on a floor surface formed in or by the leading transitional surface of the leg.
127	METHOD AND ROCK DRILLING RIG FOR HOLE DRILLING	EP06794148.4	2006-10-06	EP1931853B1	2015-12-09	KESKINIVA, Markku; ESKO, Mauri; MÄKI, Jorma; HELIN, Aimo; PIISPANEN, Juha; AHOLA, Erkki

128	SHAPED CUTTING ELEMENTS FOR EARTH-BORING TOOLS AND EARTH-BORING TOOLS INCLUDING SUCH CUTTING ELEMENTS	EP13746230.5	2013-02-08	EP2812523A1	2014-12-17	BILEN, Juan, Miguel; SCOTT, Danny, E.; PATEL, Surech, G.; MATTHEWS, Oliver; NELMS, Derek, L; LYONS, Nicholas, J.
Cutting elements for an earth-boring tool include a substrate base and a cutting tip. The cutting tip may include a first generally conical surface, a second, opposite generally conical surface, a first flank surface extending between the first and second generally conical surfaces, and a second, opposite flank surface. The cutting tip may include a central axis that is not co-linear with a longitudinal axis of the substrate base. The cutting tip may include a surface defining a longitudinal end thereof that is relatively more narrow in a central region thereof than in a radially outer region thereof. Earth-boring tools include a body and a plurality of such cutting elements attached thereto, at least one cutting element oriented to initially engage a formation with the first or second generally conical surface thereof. Methods of drilling a formation use such cutting elements and earth-boring tools.
129	AT-BIT EVALUATION OF FORMATION PARAMETERS AND DRILLING PARAMETERS	EP11777912	2011-04-26	EP2564022A4	2014-01-15	KUMAR SUNIL; JOHN HENDRIK; SCOTT DAN; DIGIOVANNI ANTHONY
An apparatus for forming a wellbore in a formation may include a bit body and a sensor in the bit body. The sensor may include at least one cutting element and may be configured to generate information relating to a parameter of interest when the drill bit engages a wellbore surface.
130	PDC SENSING ELEMENT FABRICATION PROCESS AND TOOL	EP11777913	2011-04-26	EP2564012A4	2013-12-04	KUMAR SUNIL; DIGIOVANNI ANTHONY A; SCOTT DAN; JOHN HENDRIK; MONTEIRO OTHON
A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed.
131	PDC SENSING ELEMENT FABRICATION PROCESS AND TOOL	EP11777913.2	2011-04-26	EP2564012A2	2013-03-06	KUMAR, Sunil; DIGIOVANNI, Anthony, A.; SCOTT, Dan; JOHN, Hendrik; MONTEIRO, Othon
A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed.
132	ADAPTIVE CONTROL CONCEPT FOR HYBRID PDC/ROLLER CONE BITS	EP10772502.0	2010-04-27	EP2425087A2	2012-03-07	TURNER, Evan, C.; SULLIVAN, Eric
An earth boring drill bit comprising a bit body having a longitudinal axis along a path of the bit, a first plurality of cutters mounted to the body, and a second plurality of cutters rotatably mounted to the body, wherein a longitudinal axial relationship between the first plurality of cutters and the second plurality of cutters is adjustable. The first and/or second plurality of cutters may be mounted to the body in such a manner as to allow them to slide parallel to the longitudinal axis. The longitudinal axial relationship may be adjusted to exchange the first plurality of cutters and the secondary plurality of cutters between a primary cutting position and a secondary cutting position. The bit may include a sensor to provide an indication of a formation type being excavated by the bit and a processor to control the longitudinal axial relationship based on the indication.
133	A method for reducing residual stress in a roller cone bit	EP09007819.7	2006-07-14	EP2101036B1	2011-11-09	Zahradnik, Anton F.; Jones, Ronnie L.; Nguyen, Don Q.; Ricks, Gregory L.; Beuershausen, Christopher G.; Sullivan, Eric C.

134	ROLLER-CONE BITS, SYSTEMS, DRILLING METHODS, AND DESIGN METHODS WITH OPTIMIZATION OF TOOTH ORIENTATION	EP99945376.4	1999-08-31	EP1117894B2	2010-03-03	CHEN, Shilin

135	HARDFACING AROUND BALL LOADING HOLE FOR EARTH-BORING BIT	EP08725886.9	2008-02-21	EP2126272A1	2009-12-02	MASSEY, Alan, J.; NEHRING, Keith, L.; LUCE, David, K.
A rotary cone earth boring bit has at least one bit leg (17) with a cone retaining ball passage (35) that intersects an outer surface of the bit leg and is closed by a ball plug (37). An upwardly curved lower hardfacing bead (41) is on the outer surface of the bit leg at least partially below the ball plug. A downwardly curved upper hardfacing bead (47) is on the outer surface of the bit leg at least partially above the ball plug. The upper hardfacing bead has leading and trailing ends that join the lower hardfacing bead. The upper and lower hardfacing beads define a generally elliptical perimeter (49) surround the ball plug. At least one transverse bead (53) is above the upper hardfacing bead and leads generally upwardly and circumferentially from a leading edge of the bit leg to a trailing edge of the bit leg.
136	A method for reducing residual stress in a roller cone bit	EP09007821.3	2006-07-14	EP2101038A1	2009-09-16	Zahradnik, Anton F.; Jones, Ronnie L.; Nguyen, Don Q.; Ricks, Gregory L.; Beuershausen, Christopher G.; Sullivan, Eric C.
A roller cone bit (11) has a ball retention system to secure the cones (17) to the head (15). A radial ball race (19) includes a ball way (21) with a ball plug (27) to keep the balls (25) in the ball race. The ball plug (27) is secured to the head by welding. Any residual stress in the weld region is alleviated by applying heat or vibration to promote relaxation.
137	SYSTEM5 METHOD, AND APPARATUS FOR REDUCING RESIDUAL STRESS IN AS-WELDED ROLLER CONE BIT BALL PLUG WELDS	EP06787231.7	2006-07-14	EP1904713A1	2008-04-02	ZAHRADNIK, Anton, F.; JONES, Ronnie, L.; NGUYEN, Don Q.; RICKS, Gregory L.; BEUERSHAUSEN, Christopher C.; JONES, Ronnie L.
A roller cone bit has a ball retention system to secure the cones to the head. A radial ball race includes a ball way with a ball plug to keep the balls in the ball race. The ball plug is secured to the head by welding. Any residual stress in the weld region is alleviated by one of several solutions. Material may be selectively removed from the weld, the heat-affected zone, and/or the surrounding area to promote relaxation of residual stress. Alternatively, deflection is imposed and/or heat or vibration is applied to promote relaxation.
138	Method of designing a roller-cone drill bit.	EP04025235.5	1999-08-31	EP1498575A3	2006-05-17	Chen, Shilin
Disclosed herein is a method for designing a roller cone drill bit having a plurality of roller cones and initial design parameters, comprising: simulating drilling an earth formation with the bit and determining as a result of the simulating, a drilling parameter of the bit; adjusting at least one of the initial design parameters; repeating the simulating drilling; and repeating the adjusting, the simulating and the determining until the drilling parameter is optimised.
139	Method and apparatus for monitoring and recording of operating conditions of a downhole drill bit during drilling operations	EP96300934.5	1996-02-12	EP0728915B1	2006-01-04	Zaleski, Theodore E., Jr.; Schmidt, Scott R.

140	Method of designing a roller cone bit	EP04025562.2	1999-08-31	EP1500783A2	2005-01-26	Chen, Shilin
Disclosed herein is a method of designing a roller cone bit, comprising the steps of: Calculating the trajectory of at least one tooth on each cone through formation material at the cutting face; and Jointing optimising both the orientations of said teeth and the width of uncut rings on said cutting face, in dependence on said trajectory.

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