公开(公告)号：US20190055790A1

公开(公告)日：2019-02-21

申请号：US16167031

申请日：2018-10-22

Applicant: Baker Hughes, a GE company, LLC

Inventor： Chaitanya K. Vempati ,  Timothy K. Marvel ,  Suresh G. Patel

IPC: E21B10/633 ,  B24D3/06 ,  B23K31/02 ,  B23P15/28 ,  B28B23/00 ,  E21B10/00 ,  E21B10/62 ,  E21B12/02 ,  E21B10/627

Abstract: Methods of forming an earth-boring tool may involve attaching one or more cutting elements to a replaceable cutting structure and positioning the replaceable cutting structure proximate a region of a body of an earth-boring tool that is susceptible to at least one of localized wear and localized impact damage. The replaceable cutting structure may be secured to the body. Methods of repairing an earth-boring tool may involve bringing a replaceable cutting structure proximate at least one portion of a body of an earth-boring tool exhibiting at least one of localized wear and localized impact damage. The replaceable cutting structure may be attached to the earth-boring tool at the at least one portion.

公开(公告)号：US10201858B2

公开(公告)日：2019-02-12

申请号：US14654459

申请日：2013-12-20

Applicant: Hilti Aktiengesellschaft

Inventor： Matthaeus Hoop

IPC: B23B51/04 ,  B23B31/113 ,  E21B17/046 ,  B28D1/04 ,  E21B10/62

Abstract: A drill bit, which is rotatable in a direction of rotation about an axis of rotation, is disclosed. The drill bit has a cutting portion with an annular portion where the annular portion has a first end on which is a cutting element and has at a second end a first insertion element. The drill bit has a drill shaft portion with a cylindrical drill shaft which has at an end, towards the cutting portion, a second insertion element. In a direction of insertion parallel to the axis of rotation, the insertion elements form a plug-in connection and can be additionally connected by way of at least one pin element which is movable in at least one slit-shaped clearance.

公开(公告)号：US20190032418A1

公开(公告)日：2019-01-31

申请号：US15663530

申请日：2017-07-28

Applicant: Baker Hughes, a GE company, LLC

Inventor： Jon David Schroder ,  John Abhishek Raj Bomidi ,  Alexander Rodney Boehm ,  Kegan L. Lovelace ,  William A. Moss, JR.

IPC: E21B10/62 ,  E21B10/43

Abstract: A cutting element assembly includes a rotatable cutting element, a sleeve having a cutter receiving aperture extending at least partially through the sleeve and configured to receive at least a portion of the rotatable cutting element within the cutter-receiving aperture, and a retention element rotatably coupling the rotatable cutting element to the sleeve. In some embodiments, the retention element includes a pin extending from a base portion of the sleeve and having at least one resilient portion having at least one protrusion radially extending outward. In additional embodiments, the retention element include a split ring or O-ring disposed within a groove of the rotatable cutting element. Earth-boring tools having rotating cutting elements are also disclosed.

公开(公告)号：US20190032416A1

公开(公告)日：2019-01-31

申请号：US15662821

申请日：2017-07-28

Applicant: Baker Hughes, a GE company, LLC

Inventor： Kenneth R. Evans ,  Gregory L. Ricks

IPC: E21B10/60 ,  E21B10/32 ,  E21B10/62 ,  B33Y80/00 ,  B33Y10/00 ,  B22F3/00 ,  B22F3/105

Abstract: An earth-boring tool includes a movable component and an additive manufacturing formed flow control device in fluid communication with the movable component and configured to control a flowrate of the hydraulic fluid through the additive manufacturing formed flow control device, wherein the additive manufacturing formed flow control device is configured to control a movement of the movable component via the flowrate of hydraulic fluid through the additive manufacturing formed flow control device. An earth-boring tool includes an additive manufacturing formed flow control device in fluid communication with one or more components of the earth-boring tool and configured to provide a cooling fluid to the one or more components of the earth-boring tool.

公开(公告)号：US20190010764A1

公开(公告)日：2019-01-10

申请号：US15642618

申请日：2017-07-06

Applicant: Baker Hughes, a GE Company, LLC

Inventor： Nicholas J. Lyons

IPC: E21B10/62 ,  E21B10/42 ,  E21B10/567

CPC classification number: E21B10/62 ,  E21B10/42 ,  E21B10/567 ,  E21B10/5673

Abstract: An earth-boring tool comprises a bit body and first and second depth of cut control (“DOCC”) features mounted thereon. The first and second DOCC features comprise a first rubbing surface having a first surface area and a second rubbing surface having a second surface area, respectively, for contacting a subterranean formation. The second surface area is different from the first surface area such that the first and second DOCC features distribute a load attributable to applied weight on bit over the first and second rubbing surfaces at different rates. Methods of forming an earth-boring tool include selecting first and second DOCC features having different rates of engagement with the subterranean formation and mounting the first and second DOCC features on a bit body.

公开(公告)号：US10174563B2

公开(公告)日：2019-01-08

申请号：US15504041

申请日：2014-09-18

Applicant: Halliburton Energy Services, Inc.

Inventor： Jeffrey Gerard Thomas

IPC: E21B10/62 ,  E21B10/42 ,  E21B10/43

Abstract: A drill bit is disclosed. The drill bit includes a bit body and a plurality of blades on the bit body. A cutting element is located on one of the plurality of blades and is communicatively coupled to a depth of cut controller (DOCC) located on the one of the plurality of blades. The DOCC is coupled to the cutting element such that the DOCC moves in response to an external force on the cutting element.

公开(公告)号：US10167673B2

公开(公告)日：2019-01-01

申请号：US15223699

申请日：2016-07-29

Applicant: Baker Hughes Incorporated ,  TDY Industries, LLC

Inventor： Prakash K. Mirchandani ,  Jimmy W. Eason ,  James J. Oakes ,  James C. Westhoff ,  Gabriel B. Collins

IPC: E21B10/46 ,  E21B10/62 ,  E21B10/627 ,  E21B10/633 ,  E21B10/08 ,  C22C1/00 ,  C22C29/00 ,  C22C29/08 ,  B22F1/00 ,  C22C19/03 ,  C22C19/07 ,  C22C27/04 ,  C22C30/00 ,  C22C38/00 ,  E21B10/42 ,  E21B10/567 ,  B22F5/00 ,  C22C1/05 ,  C22C1/10 ,  C22C29/14 ,  C22C29/16 ,  C22C29/18

Abstract: Binder compositions for use in forming a bit body of an earth-boring bit include at least one of cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from at least one of a transition metal carbide up to 60 weight percent, a transition metal boride up to 60 weight percent, and a transition metal silicide up to 60 weight percent, wherein the weight percentages are based on the total weight of the binder. Earth-boring bit bodies include a cemented tungsten carbide material comprising tungsten carbide and a metallic binder, wherein the tungsten carbide comprises greater than 75 volume percent of the cemented tungsten carbide material.

公开(公告)号：US10107039B2

公开(公告)日：2018-10-23

申请号：US14720189

申请日：2015-05-22

Applicant: BAKER HUGHES INCORPORATED

Inventor： Jon Schroder

IPC: E21B10/14 ,  B23P11/02 ,  E21B10/20 ,  E21B10/62

Abstract: A modular hybrid drill bit is disclosed comprising a plurality of fixed blades and at least one rolling cutter assembly that is mechanically fastened to a bit body by a plurality of mechanical fasteners. The at least one rolling cutter assembly can be adjusted to change the axial and radial exposure of the rolling cutter elements.

公开(公告)号：US20180230756A1

公开(公告)日：2018-08-16

申请号：US15948808

申请日：2018-04-09

Applicant: SMITH INTERNATIONAL, INC.

Inventor： Michael George Azar ,  Balasubramanian Durairajan ,  Madapusi Keshavan

IPC: E21B10/62 ,  E21B10/56 ,  E21B10/26 ,  E21B10/567 ,  E21B10/42 ,  E21B10/43 ,  E21B10/55 ,  E21B10/54 ,  E21B10/46 ,  E21B10/633 ,  E21B10/627

Abstract: A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least one cutter comprising a substrate and a diamond table having a substantially planar cutting face; and at least two non-planar cutting elements comprising a substrate and a diamond layer having a non-planar cutting end, wherein in a rotated view of the plurality of cutting elements into a single plane, the at least one cutter is located a radial position from the bit axis that is intermediate the radial positions of the at least two non-planar cutting elements.

公开(公告)号：US20180202236A1

公开(公告)日：2018-07-19

申请号：US15406426

申请日：2017-01-13

Applicant: Baker Hughes Incorporated

Inventor： Volker Richert ,  Nathaniel R. Adams

IPC: E21B10/62 ,  E21B3/00 ,  E21B10/54 ,  E21B10/48

CPC classification number: E21B10/62 ,  E21B3/00 ,  E21B10/46 ,  E21B10/48 ,  E21B10/54

Abstract: A tool for drilling subterranean formations includes a tool body having a face surface, a blade extending radially outward on the face surface toward a gage surface, and a plurality of cutting structures disposed in the blade. Each of the plurality of cutting structures comprises a substantially spherical body of particulate impregnated matrix material. A method of forming the tool includes forming a tool body having the plurality of cutting structures dispersed therein. A method of using the tool includes rotating the earth-boring tool within a wellbore and engaging a formation material of an earth formation with an outer surface of the blade and wearing the outer surface of the blade to expose the spherical cutting structure. After wearing the outer surface of the blade, the method includes engaging the earth formation with the spherical cutting structure.