| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 61 | TOOL AND METHOD FOR DRILLING A LATERAL WELL | EP98901374.0 | 1998-01-30 | EP0960261A1 | 1999-12-01 | HAUGEN, David, Michael; MCCLUNG, Guy, LaMont, III |
| A tool for use in forming a lateral, which tool comprises a formation drill (525) which is provided with a protective layer (527), and a mill (520) for forming a window in casing, the arrangement being such that, in use, said protective layer (527) will inhibit damage to said formation drill (525) whilst said mill (520) forms a window in said casing. | ||||||
| 62 | Methods of forming and repairing earth-boring tools including replaceable cutting structures | US14824448 | 2015-08-12 | US10107044B2 | 2018-10-23 | Chaitanya K. Vempati; Timothy K. Marvel; Suresh G. Patel |
| 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 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. | ||||||
| 63 | Self-sharpening cutting elements, earth-boring tools including such cutting elements, and methods of forming such cutting elements | US13794187 | 2013-03-11 | US09359828B2 | 2016-06-07 | Danny E. Scott |
| Cutting elements for earth-boring tools comprise a substrate including at least one material selected from the group consisting of CoCr, CoCrMo, CoCrW, and Ti. A polycrystalline superabrasive material may be attached to the substrate. Earth-boring tools comprise a body. At least one cutting element is attached to the body. The at least one cutting element comprises a substrate including at least one material selected from the group consisting of CoCr, CoCrMo, CoCrW, and Ti. A polycrystalline superabrasive material may be attached to the substrate. Methods of forming cutting elements for earth-boring tools comprise disposing a substrate including at least one material selected from the group consisting of CoCr, CoCrMo, CoCrW, and Ti in a container. Particles of superabrasive material may be disposed in the container. The particles of superabrasive material may be sintered with the substrate in the container to form a polycrystalline superabrasive material attached to the substrate. | ||||||
| 64 | METHODS OF FORMING AND REPAIRING EARTH-BORING TOOLS INCLUDING REPLACEABLE CUTTING STRUCTURES | US14824448 | 2015-08-12 | US20150345230A1 | 2015-12-03 | Chaitanya K. Vempati; Timothy K. Marvel; Suresh G. Patel |
| 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 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. | ||||||
| 65 | Rolling cutter bit design | US13111453 | 2011-05-19 | US08881849B2 | 2014-11-11 | Yuelin Shen; Youhe Zhang |
| A cutting tool having a tool body with a plurality of blades extending radially therefrom and a plurality of rotatable cutting elements mounted on at least one of the plurality of blades is disclosed, wherein the plurality of rotatable cutting elements are mounted on the at least one blade utilizing multiple side rake angles. | ||||||
| 66 | Polycrystalline diamond compacts, cutting elements and earth-boring tools including such compacts, and methods of forming such compacts and earth-boring tools | US13094075 | 2011-04-26 | US08839889B2 | 2014-09-23 | Anthony A. DiGiovanni; Iain P. Goudemond |
| Methods of forming a polycrystalline diamond compact for use in an earth-boring tool include forming a body of polycrystalline diamond material including a first material disposed in interstitial spaces between inter-bonded diamond crystals in the body, removing the first material from interstitial spaces in a portion of the body, selecting a second material promoting a higher rate of degradation of the polycrystalline diamond compact than the first material under similar elevated temperature conditions and providing the second material in interstitial spaces in the portion of the body. Methods of drilling include engaging at least one cutter with a formation and wearing a second region of polycrystalline diamond material comprising a second material faster than the first region of polycrystalline diamond material comprising a first material. Polycrystalline diamond compacts and earth-boring tools including such compacts are also disclosed. | ||||||
| 67 | Cutting elements having a pre-formed fracture plane for use in cutting tools | US12931651 | 2011-02-07 | US20120199395A1 | 2012-08-09 | Gerald D. Lynde |
| Cutting elements for cutting tools comprise a pre-formed fracture plane disposed in at least one surface of the cutting elements. The pre-formed fracture plane can comprise a groove cut into one of the surfaces of the cutting element, or the pre-formed fracture plane can be formed by using a laser or other heat concentrating source to weaken a portion of one of the surfaces of the cutting element so that the cutting element will break along the pre-formed fracture plane. | ||||||
| 68 | ROLLING CUTTER BIT DESIGN | US13111453 | 2011-05-19 | US20110284293A1 | 2011-11-24 | Yuelin Shen; Youhe Zhang |
| A cutting tool having a tool body with a plurality of blades extending radially therefrom and a plurality of rotatable cutting elements mounted on at least one of the plurality of blades is disclosed, wherein the plurality of rotatable cutting elements are mounted on the at least one blade utilizing multiple side rake angles. | ||||||
| 69 | Self sharpening steel tooth cutting structure | US12255479 | 2008-10-21 | US07866417B2 | 2011-01-11 | Robert J. Buske; James L. Overstreet |
| An earth boring drill bit comprising a milled cutter having rows of teeth hardfacing guides on the cutter. Hardfacing is applied between adjacent teeth hardfacing guides to form a cutting element. The hardfacing may include an annular body with ridges that outwardly project from the body. | ||||||
| 70 | DOWNHOLE CUTTING TOOL AND METHOD OF MAKING | US12262690 | 2008-10-31 | US20100108402A1 | 2010-05-06 | Andrew D. Ponder; Calvin J. Stowe, II |
| A downhole cutting tool includes, a body, a first contoured cutting element in operable communication with the body, and at least one contingency contoured cutting element in operable communication with the first contoured cutting element and the body. A contour of the at least one contingency contoured cutting element substantially matches a contour of the first contoured cutting element, and the at least one contingency contoured cutting element is maintainable in reserve and positioned to substitute for the first contoured cutting element if the first contoured cutting element becomes detached. | ||||||
| 71 | DRILL BIT WITH CONTINUOUSLY SHARP EDGE CUTTING ELEMENTS | US12250445 | 2008-10-13 | US20100089664A1 | 2010-04-15 | Robert M. WELCH; Eric E. McCLAIN; L. Allen SINOR |
| A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade having a curved outer edge and a forward face; a first row of cutter pockets recessed into the face along the outer edge of each blade; a second group of cutter pockets recessed into the face of each blade offset from the first row; and a plurality of cutting elements, each cutting element being brazed into a different one of the cutter pockets. | ||||||
| 72 | Self Sharpening Steel Tooth Cutting Structure | US12255479 | 2008-10-21 | US20100078226A1 | 2010-04-01 | Robert J. Buske; James L. Overstreet |
| An earth boring drill bit comprising a milled cutter having rows of teeth hardfacing guides on the cutter. Hardfacing is applied between adjacent teeth hardfacing guides to form a cutting element. The hardfacing may include an annular body with ridges that outwardly project from the body. | ||||||
| 73 | Cutting elements and bits incorporating the same | US11513292 | 2006-08-29 | US20070175672A1 | 2007-08-02 | Ronald K. Eyre; John L. Williams |
| Cutting elements and bits incorporating such cutting elements are provided. The cutting elements have a substrate, a first ultra hard material layer formed over the substrate, and a second ultra hard material layer formed over the first ultra hard material layer. The second ultra hard material layer has a thickness in the range of 0.05 mm to 2 mm. | ||||||
| 74 | Rotary drill bit compensating for changes in hardness of geological formations | US09192248 | 1998-11-16 | US06547017B1 | 2003-04-15 | William Banning Vail, III |
| A long lasting rotary drill bit for drilling a hole into variable hardness geological formations that has a self-actuating mechanism responsive to the hardness of the geological formation to minimize the time necessary to drill a borehole. A long lasting rotary drill bit for drilling a hole into variable hardness geological formations that has a mechanism controllable from the surface of the earth to change the mechanical configuration of the bit to minimize the time necessary to drill a borehole. A monolithic long lasting rotary drill bit for drilling a hole into a geological formation having hardened rods composed of hard material such as tungsten carbide that are cast into a relatively soft steel matrix material to make a rotary drill bit that compensates for wear on the bottom of the drill bit and that also compensates for lateral wear of the drill bit using passive, self-actuating mechanisms, triggered by bit wear to drill relatively constant diameter holes. | ||||||
| 75 | Unplanar non-axisymmetric inserts | US09780963 | 2001-02-09 | US06510910B2 | 2003-01-28 | Ronald K. Eyre; Stewart Middlemiss |
| Cutting elements for incorporation in a drill bit are provided having a body having an end face interfacing with an ultra hard material cutting layer. A main depression having a nonplanar surface is formed on the substrate and extending to the peripheral edge of the substrate subjected to the highest impact loads during drilling. This edge is immediately below the edge of the cutting layer which makes direct contact with the earth formations during drilling. The main depression is formed by forming a plurality of secondary depressions or steps. A second main depression is formed by forming a plurality of secondary depressions or steps. The second main depression also extends to the peripheral edge of the substrate. An ultra hard material layer is bonded to the end face of the cutting element body over the main depressions. | ||||||
| 76 | Cutting matrix and method applying the same | US09755889 | 2001-01-02 | US20010026736A1 | 2001-10-04 | Gerald D. Lynde |
| A method for applying cutting elements to a tool for cutting or milling a metal item in a well is disclosed, along with the cutting element used in the method. The tool can include one or more blades extending outwardly or downwardly from the tool for cutting a metal item such as the wall of a casing string, or for removing a predetermined length of a casing string in a cutting action. The blade or blades have cutting elements positioned on the leading faces of the blades to engage the casing string or other metal item in the bore hole. Each cutting element is composed of a plurality of effective cutting faces. Each cutting face can have a substantially triangular shape, or a substantially square shape, or some other geometric shape. The cutting elements can be arranged in a random pattern. Each cutting element can be oriented in a random orientation relative to the blade. The cutting elements are shaped so that, regardless of the positioning or orientation of a given cutting element, it will continually present a sharp cutting edge to the metal object being cut. Each cutting face of each cutting element can also have one or more surface irregularities to cause the metal chips cut from the casings to break off at short lengths. | ||||||
| 77 | Drilling and/or coring tool | US09319491 | 1999-07-19 | US06283233B1 | 2001-09-04 | Etienne Lamine; Sebastian Desmette; Cécile Josse |
| A drill and/or core tool, in particular for oil drilling and/or coring, comprising a body (2) showing a substantially cylindrical peripheral surface (3) and a front (4), blades (5) which extend from the front (4) till over the peripheral surface (3) and which show each a leading edge (6), possibly PDC cutting elements (7) which are situated at least in a central area (15A) of the front (4) and the longitudinal axes of which are transverse to the rotation axis of the tool (1), and comprising moreover, on at least one blade (5), outside said central area (15A): PDC (7C) and/or secondary (10) cutting elements which show each a cutting edge (8), forming together the leading edge (6) of the blade (5), and the longitudinal axis of which is transverse to the rotation axis, and at least one associated cutting element (10A) which is situated behind at least one of the PDC (7C) or secondary (10) cutting elements, which shows a cross-section of the same shape, at least for its portion protruding from the blade (5), than that of the PDC (7C) or secondary (10) cutting element, and which is disposed on the same blade (5). | ||||||
| 78 | Method of cutting and a cutting rotative bit | US606918 | 1996-02-26 | US5799741A | 1998-09-01 | Yuriy Kosobrodov; Vincent Jue |
| A cutting, self-rotating, and self-sharpening tool has a rotatable cutting element, generally circular, which is mounted and displaced so that cutting element has an attack angle between 90.degree. and 120.degree., and a skew angle between 5.degree. and 40.degree.. The cutting element has a convex front face and relief and rake angles that vary along the perimeter of the cutting edge. | ||||||
| 79 | Composite cermet articles and method of making | US363172 | 1994-12-23 | US5679445A | 1997-10-21 | Ted R. Massa; John S. Van Kirk; Edward V. Conley |
| Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit uniform or controlled wear to impart a self-sharpening character to an article. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or any combination of the preceding). Preferably, a first region of the cermet comprises a first ceramic component having a relatively coarse grain size and a prescribed binder content and a second region, juxtaposing or adjoining the first region, comprises a second ceramic component, preferably carbide(s), having a grain size less than the grain size of the first region, a second binder content greater than the binder content of the first region or both. These articles have an extended useful life relative to the useful life of monolithic cermets in such applications as, for example, wear. The multiple region cermets of the present invention may be used with articles comprising tools for materials manipulation or removal including, for example, mining, construction, agricultural, and metal removal applications. | ||||||
| 80 | Composite cermet articles and method of making | US469169 | 1995-06-06 | US5677042A | 1997-10-14 | Ted R. Massa; John S. Van Kirk; Edward V. Conley |
| Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit uniform or controlled wear to impart a self-sharpening character to an article. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or any combination of the preceding). Preferably, a first region of the cermet comprises a first ceramic component having a relatively coarse grain size and a prescribed binder content and a second region, juxtaposing or adjoining the first region, comprises a second ceramic component, preferably carbide(s), having a grain size less than the grain size of the first region, a second binder content greater than the binder content of the first region or both. These articles have an extended useful life relative to the useful life of monolithic cermets in such applications as, for example, wear. The multiple region cermets of the present invention may be used with articles comprising tools for materials manipulation or removal including, for example, mining, construction, agricultural, and metal removal applications. | ||||||
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