子分类：
- E21B10/083： ..{带纵向轴,例如,摆动或者章动牙轮钻头(纵轴牙轮扩孔器入E21B10/30)}
- E21B10/086： ..{具有偏心运动的}
- E21B10/10： ..带两端支撑的牙轮轴的(带盘刀的入E21B10/12)
- E21B10/12： ..带盘刀的
- E21B10/14： ..结合不带导向部件的非滚动刀具
- E21B10/16： ..以齿形或排列为特征的
- E21B10/18： ..以钻井液导管或喷嘴为特征的(钻井液向轴承的供应入E21B10/23)
- E21B10/20： ..以可拆卸或可调节部件为特征的,例如,脚架或轴(十字轴牙轮钻头入E21B10/10)
- E21B10/22： ..以轴承、润滑或密封零件为特征的
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | APPARATUS AND METHODS FOR CORROSION PROTECTION OF DOWNHOLE TOOLS | PCT/US2011040267 | 2011-06-14 | WO2011163005A3 | 2012-04-19 | TRINH TU TIEN; SULLIVAN ERIC |
| In one aspect, an apparatus for use in a wellbore is provided that in one embodiment includes a drill bit having a bit body that is susceptible to corrosion when the drill bit is utilized in wellbore, an anode placed at a selected location on the bit body, a cathode associated with the bit body and a power source configured to provide electrical power to the anode to complete an electrical circuit between the anode and the bit body, wherein the supply of the electrical power to the anode arrests corrosion of the bit body when the drill bit is in the wellbore. | ||||||
| 162 | MANUFACTURING METHODS FOR HIGH SHEAR ROLLER CONE BITS | PCT/US2010043604 | 2010-07-29 | WO2011014591A3 | 2011-04-28 | BIJAI RAHUL; ZHANG ZHEHUA; BHADBHADE VIKRANT; CENTALA PRABHAKARAN K |
| A method of manufacturing a roller cone drill bit may include forming a body of a single piece having an upper end and a lower end; machining at the lower end of the body at least two journals extending downward and radially outward from a central axis of the body; machining at least one of a ball passage, a hydraulic fluid passageway, a grease reservoir, and a lubricant passageway; and mounting roller cones on the at least two journals. | ||||||
| 163 | ADAPTIVE CONTROL CONCEPT FOR HYBRID PDC/ROLLER CONE BITS | PCT/US2010032511 | 2010-04-27 | WO2010129253A3 | 2011-03-10 | 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. | ||||||
| 164 | ADAPTIVE CONTROL CONCEPT FOR HYBRID PDC/ROLLER CONE BITS | PCT/US2010032511 | 2010-04-27 | WO2010129253A2 | 2010-11-11 | 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. | ||||||
| 165 | FORCE-BALANCED ROLLER-CONE BITS, SYSTEMS, DRILLING METHODS, AND DESIGN METHODS | PCT/US9919991 | 1999-08-31 | WO0012859A3 | 2000-06-08 | CHEN SHILIN |
| Roller cone drilling wherein the bit optimization process equalizes the downforce (axial force) for the cones (16) (as nearly as possible, subject to other design constraints). Bit performance is significantly enhanced by equalizing downforce. | ||||||
| 166 | Drill bit with electrical power generator | US15119911 | 2014-12-31 | US10145215B2 | 2018-12-04 | Richard Thomas Hay |
| An example drill bit includes a bit body defining at least one pocket, and a support arm attachable to the bit body at the at least one pocket and including a coupling that extends from the support arm. A roller cone defines a cavity for receiving the coupling to rotatably mount the roller cone on the coupling. A direct drive electrical power generator is positioned within the coupling and is operatively coupled to the roller cone such that rotation of the roller cone correspondingly rotates a portion of the direct drive electrical power generator to generate electrical power. | ||||||
| 167 | Bi-Axial Drill Bits and Bit Adaptors | US15643401 | 2017-07-06 | US20180298697A1 | 2018-10-18 | Kenneth J. Anton; Michael J. Harris |
| Drill bits comprise a body having an uphole end and a downhole end. The uphole end is adapted for connection to a tool assembly for rotating the drill bit. The tool assembly has an axis of rotation. The downhole end has one or more cutting members adapted for removing material in contact with the downhole end when the drill bit is rotated. The body has an uphole major axis and a downhole major axis. The uphole axis and the downhole axis are offset from each other. The uphole axis is central to the uphole end and is aligned with the tool assembly axis of rotation. The uphole axis defines an axis of rotation for the drill bit. The downhole axis is central to the downhole end. | ||||||
| 168 | Earth-boring tools including passively adjustable, aggressiveness-modifying members and related methods | US14973282 | 2015-12-17 | US10094174B2 | 2018-10-09 | Jayesh Rameshlal Jain; Chaitanya K. Vempati; Gregory L. Ricks; Juan Miguel Bilen |
| Earth-boring tools may include a body and a passively adjustable, aggressiveness-modifying member secured to the body. The passively adjustable, aggressiveness-modifying member may be movable between a first position in which the earth-boring tool exhibits a first aggressiveness and a second position in which the earth-boring tool exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member. | ||||||
| 169 | Rolling element assemblies | US14779046 | 2015-05-15 | US10066439B2 | 2018-09-04 | Brandon James Hinz; Gregory Christopher Grosz; Seth Anderle |
| A drill bit that includes a bit body having one or more blades extending therefrom and a plurality of cutters secured to the one or more blades. One or more rolling elements are positioned on the bit body, each rolling element having a cylindrical bearing portion defining a rotational axis. Each rolling element is rotatably coupled to the bit body about the rotational axis within a corresponding pocket defined in the bit body and a locking pin secures the rolling element within the pocket. One or more internal bearing surfaces of the pocket engage the cylindrical bearing portion and the pocket partially encircles the cylindrical bearing portion while leaving a full length of the rolling element exposed. | ||||||
| 170 | Continuous fiber-reinforced tools for downhole use | US14650003 | 2014-07-03 | US10060191B2 | 2018-08-28 | Garrett T. Olsen |
| Continuous fiber-reinforced hard composites may be useful in mitigating crack propagation in downhole tools. In some instances, a wellbore tool may be formed at least in part by a continuous fiber-reinforced hard composite portion. The continuous fiber-reinforced hard composite portion includes a binder material continuous phase with reinforcing particles and continuous fibers contained therein, wherein the continuous fibers have an aspect ratio at least 15 times greater than a critical aspect ratio (Ac). The critical aspect ratio can be determined using the equation Ac=σf/(2τc), σf is an ultimate tensile strength of the continuous fibers, and τC is a lower of (1) an interfacial shear bond strength between the continuous fibers and the binder material and (2) a yield stress of the binder material. | ||||||
| 171 | Segregated multi-material metal-matrix composite tools | US14905305 | 2015-03-19 | US10029305B2 | 2018-07-24 | Grant O. Cook, III; Venkkateesh Parthasarathi Padmarekha; Yi Pan; Daniel Brendan Voglewede; Garrett T. Olsen |
| A method for fabricating an infiltrated metal-matrix composite (MMC) tool includes positioning at least one boundary form within an infiltration chamber of a mold assembly and thereby segregating the infiltration chamber into at least a first zone and a second zone. Reinforcement materials are deposited into the infiltration chamber and include a first composition loaded into the first zone and a second composition loaded into the second zone. The first and second compositions are then infiltrated with at least one binder material to provide the infiltrated MMC tool with differing mechanical, chemical, physical, thermal, atomic, magnetic, or electrical properties between the first and second zones. | ||||||
| 172 | Earth-boring drill bits with nanotube carpets | US14410157 | 2013-12-18 | US10024110B2 | 2018-07-17 | Garrett T. Olsen; Jeffrey G. Thomas |
| An earth-boring drill bit includes a bit body having a powder component and a binder. The powder component includes a plurality of nanotubes disposed on a surface of at least one particle of the powder component. | ||||||
| 173 | DURABLE ROCK BIT FOR BLAST HOLE DRILLING | US15670118 | 2017-08-07 | US20180044993A1 | 2018-02-15 | TONY JACK BEAVERS; AMNACH KONGAMNACH |
| A rock bit for blast hole drilling includes: a bit body having a coupling formed at an upper end thereof, a plurality of lower legs, a dome formed between the legs, and a bore formed through the coupling and the dome; a plurality of skirts, each skirt covering a gap formed between adjacent legs and each skirt mounted to edges of adjacent legs; a plurality of roller cones, each rotary cone rotatably mounted to a respective bearing shaft of a respective leg; a row of gage cutters mounted to each roller cone; a row of inner cutters mounted to each roller cone; one or more nose cutters mounted to each roller cone; and a center jet secured in the bore. Each cutter is an insert. | ||||||
| 174 | System and method for measuring temperature using an opto-analytical device | US14424129 | 2012-08-31 | US09885234B2 | 2018-02-06 | Michael T. Pelletier; Robert P. Freese; Gary E. Weaver; Shilin Chen |
| In one embodiment, a method includes drilling a wellbore in a formation with a drilling tool. The method further includes receiving electromagnetic radiation using an opto-analytical device coupled to the drilling tool. The method also includes detecting a temperature associated with drilling the wellbore based on the received electromagnetic radiation. | ||||||
| 175 | Nanofiber strain gauge sensors in downhole tools | US14764589 | 2014-07-25 | US09869171B2 | 2018-01-16 | Hau Jiun Chen |
| A downhole drilling tool may include a strain gauge inside a rolling-bearing element. For example, the downhole drilling tool may include a rolling-bearing element having an inner race, an outer race, and one or more bearings disposed between the inner and outer races; and a strain gauge disposed on an interior surface of the rolling-element bearing, the strain gauge including at least one circuit formed by (1) a first substrate and a second substrate defining a gap therebetween and having first conductive fibers and second conductive fibers, respectively, extending therefrom into the gap in an intermingling configuration, (2) an electrical connection between the first and second substrates, and (3) an electrical resistance sensor arranged within the electrical connection. | ||||||
| 176 | ROLLER CONE DRILL BIT WITH EMBEDDED GAMMA RAY DETECTOR | US15524961 | 2014-12-19 | US20170321536A1 | 2017-11-09 | Richard Thomas Hay |
| An example apparatus includes a drill bit body and a leg extending from the drill bit body. A journal may extend from the leg, with a gamma ray detector at least partially within the journal. In certain embodiments, the gamma ray detector may be confined within a pressure protective cavity at least partially within the arm of the journal. In certain embodiments, the gamma ray detector may be a scintillator aligned with at least one of a photomultiplier, photodiodes, or phototransistors. | ||||||
| 177 | TUNGSTEN CARBIDE INSERT BIT WITH MILLED STEEL TEETH | US14960250 | 2015-12-04 | US20170159366A1 | 2017-06-08 | Nam Duy Nguyen |
| An earth boring bit has rotary cutters with embedded tungsten carbide inserts and milled steel teeth. The teeth and the grooves are first milled into the cutters, with the grooves extending between bases of the teeth, parallel to the crests of the teeth. Hard facing is applied to surfaces of the teeth and the grooves, and then the cutters are heat treated. Insert sockets are drilled into the teeth, centrally disposed in crests of the teeth. The tungsten carbide inserts are secured in the insert sockets, aligned for forming cutting profiles with respective ones of the milled teeth. The cutters are preferably frustoconically shaped and used for a rotary cone rock bit, and the tungsten carbide inserts configured as chisel-shaped inserts having crests which are aligned parallel to the crests of the milled steel teeth. | ||||||
| 178 | SEGREGATED MULTI-MATERIAL METAL-MATRIX COMPOSITE TOOLS | US14905305 | 2015-03-19 | US20170106438A1 | 2017-04-20 | Grant O. Cook, III; Venkkateesh Parthasarathi Padmarekha; Yi Pan; Daniel Brendan Voglewede; Garrett T. Olsen |
| A method for fabricating an infiltrated metal-matrix composite (MMC) tool includes positioning at least one boundary form within an infiltration chamber of a mold assembly and thereby segregating the infiltration chamber into at least a first zone and a second zone. Reinforcement materials are deposited into the infiltration chamber and include a first composition loaded into the first zone and a second composition loaded into the second zone. The first and second compositions are then infiltrated with at least one binder material to provide the infiltrated MMC tool with differing mechanical, chemical, physical, thermal, atomic, magnetic, or electrical properties between the first and second zones. | ||||||
| 179 | Drill bit for a drilling apparatus | US13683540 | 2012-11-21 | US09523244B2 | 2016-12-20 | Gerald Heisig |
| A down-hole drilling apparatus includes a bearing housing defining a longitudinal axis and upper and lower portions. The upper portion of the bearing housing is configured for connection to a drill string, and at least one annular bearing package disposed within the bearing housing. A drill bit is coupled to the bearing housing and rotatable with respect to the longitudinal axis. The drill bit includes a leading body supporting a plurality of cutters thereon for engaging a subterranean rock formation, a shank portion projecting from the leading body, and a mandrel portion engaging the shank portion and defining an inseparable connection therewith. The mandrel portion extends longitudinally into the bearing housing and through the at least one annular bearing package. | ||||||
| 180 | ROLLING ELEMENT ASSEMBLIES | US14777586 | 2015-05-15 | US20160273273A1 | 2016-09-22 | Brandon James Hinz; Gregory Christopher Grosz; Brian Davies; Seth Anderle |
| A drill bit includes a bit body having one or more blades extending therefrom and a plurality of cutters secured to the one or more blades. One or more rolling elements are positioned on the bit body, and each rolling element has a rotational axis and provides one or more cylindrical bearing portions rotatable about the rotational axis. Each rolling element is rotatably coupled to the bit body within a housing that defines one or more internal bearing surfaces that partially enclose the one or more cylindrical bearing portions but leaves a full length of the rolling element exposed. | ||||||
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