US2901223A - Earth boring drill - Google Patents

Earth boring drill Download PDF

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Publication number
US2901223A
US2901223A US54996955A US2901223A US 2901223 A US2901223 A US 2901223A US 54996955 A US54996955 A US 54996955A US 2901223 A US2901223 A US 2901223A
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Prior art keywords
bit
cutters
drill
hole
rolling
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Expired - Lifetime
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Floyd L Scott
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Hughes Tool Co
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Hughes Tool Co
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/18Roller bits characterised by conduits or nozzles for drilling fluids

Description

Aug- 25, 1959 FQ L. sco'r-r 2,901,223

. EARTH BQING DRILL Filed Nov. 30, 1955 /r/ogc/ l. Sco/ JNVENTOR.

United States Patent Office Patented Aug. 25, 1959 EARTH BORING DRILL ApplicationNovember 30, 1955, Serial' No. 549,969

3 Claims. (Cl. Z55-302) This invention relates to earth boring tools and more particularly to a well drill or bit of the rotating cutter type which is of particular utility in drilling relatively soft formations.`

In the drilling of well bores, by the rotary method of drilling and in earth Iformations which are relatively soft, difhculty has been experienced from. clogging or balling up of bits when a high rate of penetration is attempted. It` appears that this diiculty arises primarily from the facts that the drill bit structure provides insuicient ventilation to permit `immediate removal of cuttings when formed andthe cuttings `are' insufcient comminuted to facilitate such removal from the cutting area.

Earth formations, of the typeto which reference is abovemade,` are most commonly encountered at shallow depths lbut extend? to considerable depths in certain regions such, for example,fas theGulf Coast and tidelands areas of the United States. These `formations are of a nature that they are relatively deformable under pressures such as those applied when drilling by the rotary method.l It is customary that lan earth boring` drill of the rolling cutter type shall be so` designed that the cutting action of the rolling cutters shall cover the entire bottom of the hole being drilled and each cutter shall be in close contiguity with the adjacent cutters, usuallywith the teeth of adjacent cutters interftting. The present invention is Abasedupon the discovery that it is possible to. drill more rapidly, especially in the softer, and hence deformable, formations, bymeans of a bit' in which the rolling cutters are spaced relative to each other. and do not produce cutting action upon the entire" bottom of;` the hole being drilled, means being provided inthe =bit`t`o` remove cuttings 4formed by the cutters, to desirably disintegrate all formation material deformed' orextruded by the bit and also to remove the cor'ewhich forms" on that portion of the hole bottom not covered by the cutters. A bit constructed in accordance with the invention also provides adequate ventilation that the cuttings are effectively removed from the cutting zone.

It is the primary object of the invention to provide a well drill capable of drilling earth formations at a high rate of penetration.

Another object is to provide a Well drill of the rolling cutter type in which the cutters are spaced outwardly of the axis of the well bore being drilled, the drill including means for removing cuttings Ifrom bottom and for disintegrating and removing the formation material which tends to Iform a core at the center of the well bore.

Still another object is to provide a well drill or bit in which the ilushing -lluid is so directed as to disintegrate formation material at and proximate the center of the well bore and to effectively initiate upward movement of such material together with that disintegrated by the cutters.

A still further object is to provide a rolling cutter type of bit of the class described in which the action of the cutters, spaced outwardly of the axis of the bit, is supplemented by a nozzle assembly lfrom which uid is discharged at a high velocity to effect disintegration of formation material to be removed from the cutting area.

These and other objects will be more Ifully apparent from. the following description, considered in connection with the accompanying drawings in which:

tFifg'.- l is an' elevational: view of a wel-l drill of the three-cone-cutter type embodying the invention, a portion of the' drill beingcut away to show lthe internal construction;

Fig. 2 is a bottom view of the well drill, a circle beingdrawn to show the periphery of a hole drilled by the bit;`

Fig. 3 is a side elevational view of the well drill within a Ibore hole being formed thereby, such view illustrating the manner in which the flushing iluid? disintegrates the earth.v -formation material at the center of the hole including that which is deformed or extruded by the rolling` cutters from pressure applied to the cutters during drilling.

The` illustrated embodiment is aA three-clone drill or bit although itl is toy be understood that the invention is equally applicable whether the numberl of cutters is greater or less than shown. The bit comprises a head 1 havinga threaded shank 2 for attachment to a drill string or stern (not shown). The bit head 1 includes the downwardly extendingv legs 3 each of which is: provided with an inwardly extending cantilever shaft (not shown) upon whichf. is rotatably mounted arolling cutter 4 as is Well known in the art. Also as is customary each cutter is provided with cuttingy elements or teethl 5 of suitable designr andi spacing as to effectively penetrate and disintegrate,` that portion of therbottom of the hole that is traverse'd` by the cut'tersasl the bit is rotated.

Asti already explained it is usual for the cutters of a well'drill to: effect their cutting action from the center to the periphery of the hole Kbeing drilled and also for each cutter to be closely contiguous to the adjacent cutters. In accordance with the present invention such is not the'. case as` the cutters 4 are of such size that their innermost cutting elements. identied as 6, 7 and 8 are located outwardly for the bit axis. At the same time the cutters are quite` widely separated circumferentially of thefbit` and this arrangementprovides wide spacing at the heels, or bases` of the cone shaped cutters, as shown at 1.0 in^ Fig. 2, so that flushing iluid has an opportunity to remove cuttings from :bottom and upwardly past the cutters 4fand the bit head 1 whence they move upwardly and are discharged from the Well bore at the surface. While the cutters 4 are shown with the peripheries of adjacent cutters in converging relation in the plane where such adjacent cutters are most closely contiguous, itis to be understood that the angle of convergence, or divergence, may be desirably varied by changing the vertex angle of the cone defined by the respective frusto-conical cutters. That is to say, the peripheral configuration of the cutters, and the cutting elements thereon, may be varied as desired in order to adapt the bit to drilling most effectively in various types of formations.

Wide spacing of the cutters gives rise to the tendency for the cutters 4 to produce an annular kerf and a central upstanding core at the center of the well bore. An important feature of the invention resides in the cooperative action between the cutting structure thus far described and a novel core breaker and nozzle assembly 12 which will now Ibe described.

This assembly comprises a body 13 reduced at its upper end at 14 and seated within a complemental counterbore 15 at the lower end of the central `bore 16 in the bit head 1. It is integrally united to the bit head by a bead of weld metal shown at 17.

fhe body 1,3 has three hollow, sidewardly extending bosses 18 each of which is provided with a wear resistant nozzle 19 secured within its lower end. Preferably, and as shown, the assembly 12 is so oriented .about the axis of the bit that fluid discharged from the nozzles 19 forms jets which are directed downwardly and outwardly approximately midway between successive cutters 4.

Attached to the body 13 and extending downwardly therefrom is a projection 20 provided with radially extending ns 21 whose lower ends are adapted to function as a cutter. This projection may be tapered to a point at its lower end which is proximate the inner ends of the rolling cutters, it being intended that this structure shall be capable of breaking up any core that forms and extends centrally upward vfrom the bottom of the Well bore formed by the bit. As will appear from the further description of operation of the bit it has been -found that the projection 20 and -iins 21 thereon have a minor function to perform, this feature of construction merely serving to assure that any core that forms shall not assume proportions that will retard drilling action.

Experience reveals that the bit of the invention is capable of drilling approximately 30% to 40% faster than conventional bits of types heretofore used, and at the same time is relatively immune from balling up. It has also been found in bits embodying the invention that, even after Idrilling in excess of 5,000 feet of hole, the projection 20 is in substantially new condition.

Applicant is uncertain as to reason for the unusual operating characteristics of the bit but believes that a Ilogical explanation is illustrated in Fig. 3. As already indicated, relatively soft lformations for which the bit is best adapted are quite deformable under pressure, it is therefore, believed that while the cutters 4 apply pressure to and effect cutting action on bottom and produce cuttings as indicated at 25 the weight applied to the bit also causes extrusion of formation material toward the center of the hole 26 and also toward the spaces 10 intermediate the cutters as indicated by the arrows 28. At the same time a core tends to form centrally of the hole but such core is penetrated by the projection 21 and thence sloughs outwardly whence the core material joins the cuttings 25 and the extruded material 28. The jets from the nozzles 19 are of relatively high velocity, of the order of 200 -feet per second or greater. Hence, the downwardly projected uid jets possess suicient energy to produce a slashing action (as illustrated in Fig. 3) upon the formation materials displaced from the bottom of the hole being drilled. Also, disintegration of such materials is effected and movement upward from the cutting zone is initiated. t

Broadly the invention comprehends an earth boring drill of the rolling cutter type which is of particular utility in the drilling of relatively soft earth formations and capable of a high rate of penetration.

The invention claimed is:

r1. A drill bit including, a head having a plurality of depending legs, a shaft extending inwardly and downwardly from eac-h of said legs, a rolling cutter rotatably mounted upon each of said shafts, each of said rolling cutters extending a portion of the distance from the periphery of the bit toward the axis of the bit and enclosing the inner end of the associated shaft, there being a passage axially of the bit head, a downward projection on said head axially of the head and intermediate and spaced inwardly from the inner ends of said cutters, said projection terminating in a cutter proximate the inner ends of the rol-ling cutters, a plurality of downwardly directed nozzles about said projection and at the base thereof arranged to direct flushing iluid from said passage and upon bottom of the hole and intermediate said rolling cutters whereby formation material is disintegrated and moves upwardly with the flushing iluid from the bottom of the hole.

2. A drill in accordance with claim 1 in which the nozzles are positioned to direct fluid upon bottom at points outwardly of the axis of the bit and substantially midway between successive cutters.

3. A drill bit including, a head having a plurality of depending legs, a shaft extending inwardly and downwardly lfrom each of said legs, a rolling cutter rotatably mounted -upon each of said shafts, each of said rolling cutters extending a portion of the distance from the periphery of the bit toward the axis of the bit and enclosing the inner end of the associated shaft, there being a passage axially of the bit head, a nozzle assembly secured to the bit head at the lower end of said passage, said assembly including a downwardly extending projection extending axially of the bit and terminating in a cutter proximate the inner ends of the rolling cutters, and a plurality of downwardly and outwardly directed nozzles arranged about said projection to direct flushing uid from the passage and upon the bottom of the holle at points spaced outwardly between the rolling cutters intermediate the axis and periphery of the hole.

References Cited in the le of this patent UNITED STATES PATENTS Re. 23,416 Kinnear Oct. 16, 1951 2,200,482 Winslow May 14, 1940 2,320,136 Kammerer May 25, 1943 2,358,642 Kammerer Sept. 19, 1944 2,540,464 Stokes Feb. 6, 1951 2,661,931 Swart Dec. 8, 1953 2,692,117 Kucera et al. Oct. 19, 1954 2,751,196 Smith June 19, 1956

US2901223A 1955-11-30 1955-11-30 Earth boring drill Expired - Lifetime US2901223A (en)

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Cited By (107)

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US3075592A (en) * 1960-05-31 1963-01-29 Jersey Prod Res Co Drilling device
US3112800A (en) * 1959-08-28 1963-12-03 Phillips Petroleum Co Method of drilling with high velocity jet cutter rock bit
US3112803A (en) * 1962-01-02 1963-12-03 Jersey Prod Res Co Diamond drill bit
US3158207A (en) * 1961-08-14 1964-11-24 Jersey Producttion Res Company Combination roller cone and spark discharge drill bit
US3207241A (en) * 1963-04-08 1965-09-21 Smith Tool Co Jet bits
US3329222A (en) * 1964-11-23 1967-07-04 Smith Ind International Inc Jet bit
US4045646A (en) * 1973-10-24 1977-08-30 Dresser Industries, Inc. Positioning fixture for rock bit welding
US4054772A (en) * 1973-10-24 1977-10-18 Dresser Industries, Inc. Positioning system for rock bit welding
US4174759A (en) * 1977-09-19 1979-11-20 Arbuckle Donald P Rotary drill bit and method of forming bore hole
US4229638A (en) * 1975-04-01 1980-10-21 Dresser Industries, Inc. Unitized rotary rock bit
DE3314583A1 (en) * 1982-07-20 1984-02-09 Sumitomo Metal Mining Co Drilling bit
US5394952A (en) * 1993-08-24 1995-03-07 Smith International, Inc. Core cutting rock bit
US5494124A (en) * 1993-10-08 1996-02-27 Vortexx Group, Inc. Negative pressure vortex nozzle
US5636700A (en) * 1995-01-03 1997-06-10 Dresser Industries, Inc. Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction
US5695019A (en) * 1995-08-23 1997-12-09 Dresser Industries, Inc. Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts
US5709278A (en) * 1996-01-22 1998-01-20 Dresser Industries, Inc. Rotary cone drill bit with contoured inserts and compacts
US5722497A (en) * 1996-03-21 1998-03-03 Dresser Industries, Inc. Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
US5785258A (en) * 1993-10-08 1998-07-28 Vortexx Group Incorporated Method and apparatus for conditioning fluid flow
US5853055A (en) * 1996-06-27 1998-12-29 Smith International, Inc. Rock bit with an extended center jet
US6354387B1 (en) 1999-02-25 2002-03-12 Baker Hughes Incorporated Nozzle orientation for roller cone rock bit
US6585063B2 (en) * 2000-12-14 2003-07-01 Smith International, Inc. Multi-stage diffuser nozzle
US7198119B1 (en) 2005-11-21 2007-04-03 Hall David R Hydraulic drill bit assembly
US20070114068A1 (en) * 2005-11-21 2007-05-24 Mr. David Hall Drill Bit Assembly for Directional Drilling
US20070114071A1 (en) * 2005-11-21 2007-05-24 Hall David R Rotary Bit with an Indenting Member
US20070114062A1 (en) * 2005-11-21 2007-05-24 Hall David R Drill Bit Assembly with a Logging Device
US20070114066A1 (en) * 2005-11-21 2007-05-24 Hall David R A Drill Bit Assembly Adapted to Provide Power Downhole
US20070119630A1 (en) * 2005-11-21 2007-05-31 Hall David R Jack Element Adapted to Rotate Independent of a Drill Bit
US20070125580A1 (en) * 2005-11-21 2007-06-07 Hall David R Jet Arrangement for a Downhole Drill Bit
US20070221412A1 (en) * 2005-11-21 2007-09-27 Hall David R Rotary Valve for a Jack Hammer
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US20080156541A1 (en) * 2005-12-22 2008-07-03 Hall David R Downhole Hammer Assembly
US20080173482A1 (en) * 2005-11-21 2008-07-24 Hall David R Drill Bit
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US7419018B2 (en) 2006-11-01 2008-09-02 Hall David R Cam assembly in a downhole component
US20080296015A1 (en) * 2007-06-04 2008-12-04 Hall David R Clutch for a Jack Element
US20080302572A1 (en) * 2005-11-21 2008-12-11 Hall David R Drill Bit Porting System
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US20090000828A1 (en) * 2006-08-11 2009-01-01 Hall David R Roof Bolt Bit
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US20090057016A1 (en) * 2005-11-21 2009-03-05 Hall David R Downhole Turbine
US20090095536A1 (en) * 2007-10-12 2009-04-16 Smith International, Inc. Rock bit with hydraulic configuration
US20090159340A1 (en) * 2007-10-12 2009-06-25 Smith International Corporation Rock bit with vectored hydraulic nozzle retention sleeves
US20090158897A1 (en) * 2005-11-21 2009-06-25 Hall David R Jack Element with a Stop-off
US20090183919A1 (en) * 2005-11-21 2009-07-23 Hall David R Downhole Percussive Tool with Alternating Pressure Differentials
US20090183920A1 (en) * 2006-03-23 2009-07-23 Hall David R Downhole Percussive Tool with Alternating Pressure Differentials
US7600586B2 (en) 2006-12-15 2009-10-13 Hall David R System for steering a drill string
US20090255733A1 (en) * 2005-11-21 2009-10-15 Hall David R Lead the Bit Rotary Steerable System
US7617886B2 (en) 2005-11-21 2009-11-17 Hall David R Fluid-actuated hammer bit
US20100059289A1 (en) * 2006-08-11 2010-03-11 Hall David R Cutting Element with Low Metal Concentration
US7694756B2 (en) 2006-03-23 2010-04-13 Hall David R Indenting member for a drill bit
US20100089648A1 (en) * 2006-08-11 2010-04-15 Hall David R Fixed Bladed Bit that Shifts Weight between an Indenter and Cutting Elements
US7721826B2 (en) 2007-09-06 2010-05-25 Schlumberger Technology Corporation Downhole jack assembly sensor
USD620510S1 (en) 2006-03-23 2010-07-27 Schlumberger Technology Corporation Drill bit
US20110042150A1 (en) * 2006-08-11 2011-02-24 Hall David R Roof Mining Drill Bit
US7900720B2 (en) 2006-01-18 2011-03-08 Schlumberger Technology Corporation Downhole drive shaft connection
US7954401B2 (en) 2006-10-27 2011-06-07 Schlumberger Technology Corporation Method of assembling a drill bit with a jack element
US7967083B2 (en) 2007-09-06 2011-06-28 Schlumberger Technology Corporation Sensor for determining a position of a jack element
US7967082B2 (en) 2005-11-21 2011-06-28 Schlumberger Technology Corporation Downhole mechanism
US20110180324A1 (en) * 2006-08-11 2011-07-28 Hall David R Sensor on a Formation Engaging Member of a Drill Bit
US20110180325A1 (en) * 2006-08-11 2011-07-28 Hall David R Sensor on a Formation Engaging Member of a Drill Bit
US8011457B2 (en) 2006-03-23 2011-09-06 Schlumberger Technology Corporation Downhole hammer assembly
US8201892B2 (en) 2006-08-11 2012-06-19 Hall David R Holder assembly
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US8292372B2 (en) 2007-12-21 2012-10-23 Hall David R Retention for holder shank
US8297378B2 (en) 2005-11-21 2012-10-30 Schlumberger Technology Corporation Turbine driven hammer that oscillates at a constant frequency
US8316964B2 (en) 2006-03-23 2012-11-27 Schlumberger Technology Corporation Drill bit transducer device
US8322796B2 (en) 2009-04-16 2012-12-04 Schlumberger Technology Corporation Seal with contact element for pick shield
US8333254B2 (en) 2010-10-01 2012-12-18 Hall David R Steering mechanism with a ring disposed about an outer diameter of a drill bit and method for drilling
US8342266B2 (en) 2011-03-15 2013-01-01 Hall David R Timed steering nozzle on a downhole drill bit
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US8408336B2 (en) 2005-11-21 2013-04-02 Schlumberger Technology Corporation Flow guide actuation
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US8522897B2 (en) 2005-11-21 2013-09-03 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US8528664B2 (en) 2005-11-21 2013-09-10 Schlumberger Technology Corporation Downhole mechanism
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US8550190B2 (en) 2010-04-01 2013-10-08 David R. Hall Inner bit disposed within an outer bit
US8567532B2 (en) 2006-08-11 2013-10-29 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
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US8714285B2 (en) 2006-08-11 2014-05-06 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
US20140196956A1 (en) * 2009-07-31 2014-07-17 Smith International, Inc. High shear roller cone drill bits
US8820440B2 (en) 2010-10-01 2014-09-02 David R. Hall Drill bit steering assembly
US8839888B2 (en) 2010-04-23 2014-09-23 Schlumberger Technology Corporation Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements
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US9366089B2 (en) 2006-08-11 2016-06-14 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US9574405B2 (en) 2005-09-21 2017-02-21 Smith International, Inc. Hybrid disc bit with optimized PDC cutter placement
US9915102B2 (en) 2006-08-11 2018-03-13 Schlumberger Technology Corporation Pointed working ends on a bit
US10017994B2 (en) 2014-10-17 2018-07-10 Ashmin Holding Llc Boring apparatus and method
US10029391B2 (en) 2006-10-26 2018-07-24 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2200482A (en) * 1938-08-13 1940-05-14 Winslow Charles Cecil Rock bit
US2320136A (en) * 1940-09-30 1943-05-25 Archer W Kammerer Well drilling bit
US2358642A (en) * 1941-11-08 1944-09-19 Archer W Kammerer Rotary drill bit
US2540464A (en) * 1947-05-31 1951-02-06 Reed Roller Bit Co Pilot bit
USRE23416E (en) * 1951-10-16 Drill
US2661931A (en) * 1950-12-04 1953-12-08 Security Engineering Division Hydraulic rotary rock bit
US2692117A (en) * 1951-11-13 1954-10-19 Reed Roller Bit Co Drill bit
US2751196A (en) * 1955-04-22 1956-06-19 Smith Belmont Duard Rotary bit for dry rock drilling

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23416E (en) * 1951-10-16 Drill
US2200482A (en) * 1938-08-13 1940-05-14 Winslow Charles Cecil Rock bit
US2320136A (en) * 1940-09-30 1943-05-25 Archer W Kammerer Well drilling bit
US2358642A (en) * 1941-11-08 1944-09-19 Archer W Kammerer Rotary drill bit
US2540464A (en) * 1947-05-31 1951-02-06 Reed Roller Bit Co Pilot bit
US2661931A (en) * 1950-12-04 1953-12-08 Security Engineering Division Hydraulic rotary rock bit
US2692117A (en) * 1951-11-13 1954-10-19 Reed Roller Bit Co Drill bit
US2751196A (en) * 1955-04-22 1956-06-19 Smith Belmont Duard Rotary bit for dry rock drilling

Cited By (159)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112800A (en) * 1959-08-28 1963-12-03 Phillips Petroleum Co Method of drilling with high velocity jet cutter rock bit
US3075592A (en) * 1960-05-31 1963-01-29 Jersey Prod Res Co Drilling device
US3158207A (en) * 1961-08-14 1964-11-24 Jersey Producttion Res Company Combination roller cone and spark discharge drill bit
US3112803A (en) * 1962-01-02 1963-12-03 Jersey Prod Res Co Diamond drill bit
US3207241A (en) * 1963-04-08 1965-09-21 Smith Tool Co Jet bits
US3329222A (en) * 1964-11-23 1967-07-04 Smith Ind International Inc Jet bit
US4045646A (en) * 1973-10-24 1977-08-30 Dresser Industries, Inc. Positioning fixture for rock bit welding
US4054772A (en) * 1973-10-24 1977-10-18 Dresser Industries, Inc. Positioning system for rock bit welding
US4229638A (en) * 1975-04-01 1980-10-21 Dresser Industries, Inc. Unitized rotary rock bit
US4174759A (en) * 1977-09-19 1979-11-20 Arbuckle Donald P Rotary drill bit and method of forming bore hole
DE3314583A1 (en) * 1982-07-20 1984-02-09 Sumitomo Metal Mining Co Drilling bit
US5394952A (en) * 1993-08-24 1995-03-07 Smith International, Inc. Core cutting rock bit
US5921476A (en) * 1993-10-08 1999-07-13 Vortexx Group Incorporated Method and apparatus for conditioning fluid flow
US5632349A (en) * 1993-10-08 1997-05-27 Dove; Norval R. Vortex drill bit
US5494124A (en) * 1993-10-08 1996-02-27 Vortexx Group, Inc. Negative pressure vortex nozzle
US5653298A (en) * 1993-10-08 1997-08-05 Vortexx Group, Inc. Vortex method
US5785258A (en) * 1993-10-08 1998-07-28 Vortexx Group Incorporated Method and apparatus for conditioning fluid flow
US6065683A (en) * 1993-10-08 2000-05-23 Vortexx Group, Inc. Method and apparatus for conditioning fluid flow
US5636700A (en) * 1995-01-03 1997-06-10 Dresser Industries, Inc. Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction
US5695019A (en) * 1995-08-23 1997-12-09 Dresser Industries, Inc. Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts
US5709278A (en) * 1996-01-22 1998-01-20 Dresser Industries, Inc. Rotary cone drill bit with contoured inserts and compacts
US5722497A (en) * 1996-03-21 1998-03-03 Dresser Industries, Inc. Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
US5853055A (en) * 1996-06-27 1998-12-29 Smith International, Inc. Rock bit with an extended center jet
US6354387B1 (en) 1999-02-25 2002-03-12 Baker Hughes Incorporated Nozzle orientation for roller cone rock bit
US6585063B2 (en) * 2000-12-14 2003-07-01 Smith International, Inc. Multi-stage diffuser nozzle
US9574405B2 (en) 2005-09-21 2017-02-21 Smith International, Inc. Hybrid disc bit with optimized PDC cutter placement
US20070221412A1 (en) * 2005-11-21 2007-09-27 Hall David R Rotary Valve for a Jack Hammer
US20070114071A1 (en) * 2005-11-21 2007-05-24 Hall David R Rotary Bit with an Indenting Member
US20070114067A1 (en) * 2005-11-21 2007-05-24 Hall David R Drill Bit Assembly with an Indenting Member
US20070114061A1 (en) * 2005-11-21 2007-05-24 Hall David R Drill Bit Assembly with a Probe
US20070114065A1 (en) * 2005-11-21 2007-05-24 Hall David R Drill Bit Assembly
US20070114062A1 (en) * 2005-11-21 2007-05-24 Hall David R Drill Bit Assembly with a Logging Device
US20070114066A1 (en) * 2005-11-21 2007-05-24 Hall David R A Drill Bit Assembly Adapted to Provide Power Downhole
US20070119630A1 (en) * 2005-11-21 2007-05-31 Hall David R Jack Element Adapted to Rotate Independent of a Drill Bit
US7225886B1 (en) 2005-11-21 2007-06-05 Hall David R Drill bit assembly with an indenting member
US20070125580A1 (en) * 2005-11-21 2007-06-07 Hall David R Jet Arrangement for a Downhole Drill Bit
US7258179B2 (en) 2005-11-21 2007-08-21 Hall David R Rotary bit with an indenting member
US7270196B2 (en) 2005-11-21 2007-09-18 Hall David R Drill bit assembly
US20070114068A1 (en) * 2005-11-21 2007-05-24 Mr. David Hall Drill Bit Assembly for Directional Drilling
US20070221408A1 (en) * 2005-11-21 2007-09-27 Hall David R Drilling at a Resonant Frequency
US7198119B1 (en) 2005-11-21 2007-04-03 Hall David R Hydraulic drill bit assembly
US8950517B2 (en) 2005-11-21 2015-02-10 Schlumberger Technology Corporation Drill bit with a retained jack element
US20070272443A1 (en) * 2005-11-21 2007-11-29 Hall David R Downhole Steering
US20080011522A1 (en) * 2005-11-21 2008-01-17 Hall David R Retaining Element for a Jack Element
US7328755B2 (en) 2005-11-21 2008-02-12 Hall David R Hydraulic drill bit assembly
US7337858B2 (en) 2005-11-21 2008-03-04 Hall David R Drill bit assembly adapted to provide power downhole
US8528664B2 (en) 2005-11-21 2013-09-10 Schlumberger Technology Corporation Downhole mechanism
US7360610B2 (en) 2005-11-21 2008-04-22 Hall David R Drill bit assembly for directional drilling
US8522897B2 (en) 2005-11-21 2013-09-03 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US8408336B2 (en) 2005-11-21 2013-04-02 Schlumberger Technology Corporation Flow guide actuation
US8297378B2 (en) 2005-11-21 2012-10-30 Schlumberger Technology Corporation Turbine driven hammer that oscillates at a constant frequency
US8297375B2 (en) 2005-11-21 2012-10-30 Schlumberger Technology Corporation Downhole turbine
US7398837B2 (en) 2005-11-21 2008-07-15 Hall David R Drill bit assembly with a logging device
US20080173482A1 (en) * 2005-11-21 2008-07-24 Hall David R Drill Bit
US20080179098A1 (en) * 2005-11-21 2008-07-31 Hall David R Drill Bit Assembly for Directional Drilling
US8281882B2 (en) 2005-11-21 2012-10-09 Schlumberger Technology Corporation Jack element for a drill bit
US8267196B2 (en) 2005-11-21 2012-09-18 Schlumberger Technology Corporation Flow guide actuation
US7424922B2 (en) 2005-11-21 2008-09-16 Hall David R Rotary valve for a jack hammer
US7426968B2 (en) 2005-11-21 2008-09-23 Hall David R Drill bit assembly with a probe
US8225883B2 (en) 2005-11-21 2012-07-24 Schlumberger Technology Corporation Downhole percussive tool with alternating pressure differentials
US20080302572A1 (en) * 2005-11-21 2008-12-11 Hall David R Drill Bit Porting System
US8205688B2 (en) 2005-11-21 2012-06-26 Hall David R Lead the bit rotary steerable system
US8020471B2 (en) 2005-11-21 2011-09-20 Schlumberger Technology Corporation Method for manufacturing a drill bit
US7967082B2 (en) 2005-11-21 2011-06-28 Schlumberger Technology Corporation Downhole mechanism
US7497279B2 (en) 2005-11-21 2009-03-03 Hall David R Jack element adapted to rotate independent of a drill bit
US20090057016A1 (en) * 2005-11-21 2009-03-05 Hall David R Downhole Turbine
US7506701B2 (en) * 2005-11-21 2009-03-24 Hall David R Drill bit assembly for directional drilling
US20110048811A1 (en) * 2005-11-21 2011-03-03 Schlumberger Technology Corporation Drill bit with a retained jack element
US7753144B2 (en) * 2005-11-21 2010-07-13 Schlumberger Technology Corporation Drill bit with a retained jack element
US7533737B2 (en) 2005-11-21 2009-05-19 Hall David R Jet arrangement for a downhole drill bit
US7641002B2 (en) 2005-11-21 2010-01-05 Hall David R Drill bit
US20090158897A1 (en) * 2005-11-21 2009-06-25 Hall David R Jack Element with a Stop-off
US7559379B2 (en) 2005-11-21 2009-07-14 Hall David R Downhole steering
US20090183919A1 (en) * 2005-11-21 2009-07-23 Hall David R Downhole Percussive Tool with Alternating Pressure Differentials
US7591327B2 (en) 2005-11-21 2009-09-22 Hall David R Drilling at a resonant frequency
US20090255733A1 (en) * 2005-11-21 2009-10-15 Hall David R Lead the Bit Rotary Steerable System
US7617886B2 (en) 2005-11-21 2009-11-17 Hall David R Fluid-actuated hammer bit
US20080156541A1 (en) * 2005-12-22 2008-07-03 Hall David R Downhole Hammer Assembly
US7900720B2 (en) 2006-01-18 2011-03-08 Schlumberger Technology Corporation Downhole drive shaft connection
US20070229304A1 (en) * 2006-03-23 2007-10-04 Hall David R Drill Bit with an Electrically Isolated Transmitter
US20090183920A1 (en) * 2006-03-23 2009-07-23 Hall David R Downhole Percussive Tool with Alternating Pressure Differentials
US7661487B2 (en) 2006-03-23 2010-02-16 Hall David R Downhole percussive tool with alternating pressure differentials
US7419016B2 (en) 2006-03-23 2008-09-02 Hall David R Bi-center drill bit
US7694756B2 (en) 2006-03-23 2010-04-13 Hall David R Indenting member for a drill bit
US8360174B2 (en) 2006-03-23 2013-01-29 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US20080142263A1 (en) * 2006-03-23 2008-06-19 Hall David R Downhole Valve Mechanism
US8011457B2 (en) 2006-03-23 2011-09-06 Schlumberger Technology Corporation Downhole hammer assembly
US7762353B2 (en) 2006-03-23 2010-07-27 Schlumberger Technology Corporation Downhole valve mechanism
USD620510S1 (en) 2006-03-23 2010-07-27 Schlumberger Technology Corporation Drill bit
US8130117B2 (en) 2006-03-23 2012-03-06 Schlumberger Technology Corporation Drill bit with an electrically isolated transmitter
US7484576B2 (en) 2006-03-23 2009-02-03 Hall David R Jack element in communication with an electric motor and or generator
US8316964B2 (en) 2006-03-23 2012-11-27 Schlumberger Technology Corporation Drill bit transducer device
US20070221406A1 (en) * 2006-03-24 2007-09-27 Hall David R Jack Element for a Drill Bit
US7571780B2 (en) 2006-03-24 2009-08-11 Hall David R Jack element for a drill bit
US8596381B2 (en) 2006-08-11 2013-12-03 David R. Hall Sensor on a formation engaging member of a drill bit
US8622155B2 (en) 2006-08-11 2014-01-07 Schlumberger Technology Corporation Pointed diamond working ends on a shear bit
US20110042150A1 (en) * 2006-08-11 2011-02-24 Hall David R Roof Mining Drill Bit
US8449040B2 (en) 2006-08-11 2013-05-28 David R. Hall Shank for an attack tool
US20110180325A1 (en) * 2006-08-11 2011-07-28 Hall David R Sensor on a Formation Engaging Member of a Drill Bit
US8434573B2 (en) 2006-08-11 2013-05-07 Schlumberger Technology Corporation Degradation assembly
US20090000828A1 (en) * 2006-08-11 2009-01-01 Hall David R Roof Bolt Bit
US8567532B2 (en) 2006-08-11 2013-10-29 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US9051795B2 (en) 2006-08-11 2015-06-09 Schlumberger Technology Corporation Downhole drill bit
US9708856B2 (en) 2006-08-11 2017-07-18 Smith International, Inc. Downhole drill bit
US8191651B2 (en) 2006-08-11 2012-06-05 Hall David R Sensor on a formation engaging member of a drill bit
US8201892B2 (en) 2006-08-11 2012-06-19 Hall David R Holder assembly
US20100089648A1 (en) * 2006-08-11 2010-04-15 Hall David R Fixed Bladed Bit that Shifts Weight between an Indenter and Cutting Elements
US8215420B2 (en) 2006-08-11 2012-07-10 Schlumberger Technology Corporation Thermally stable pointed diamond with increased impact resistance
US8714285B2 (en) 2006-08-11 2014-05-06 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
US9316061B2 (en) 2006-08-11 2016-04-19 David R. Hall High impact resistant degradation element
US9366089B2 (en) 2006-08-11 2016-06-14 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US20100059289A1 (en) * 2006-08-11 2010-03-11 Hall David R Cutting Element with Low Metal Concentration
US8573331B2 (en) 2006-08-11 2013-11-05 David R. Hall Roof mining drill bit
US8590644B2 (en) 2006-08-11 2013-11-26 Schlumberger Technology Corporation Downhole drill bit
US9915102B2 (en) 2006-08-11 2018-03-13 Schlumberger Technology Corporation Pointed working ends on a bit
US8616305B2 (en) 2006-08-11 2013-12-31 Schlumberger Technology Corporation Fixed bladed bit that shifts weight between an indenter and cutting elements
US20110180324A1 (en) * 2006-08-11 2011-07-28 Hall David R Sensor on a Formation Engaging Member of a Drill Bit
US8240404B2 (en) 2006-08-11 2012-08-14 Hall David R Roof bolt bit
US20080087473A1 (en) * 2006-10-13 2008-04-17 Hall David R Percussive Drill Bit
US7527110B2 (en) 2006-10-13 2009-05-05 Hall David R Percussive drill bit
US9068410B2 (en) 2006-10-26 2015-06-30 Schlumberger Technology Corporation Dense diamond body
US10029391B2 (en) 2006-10-26 2018-07-24 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions
US7954401B2 (en) 2006-10-27 2011-06-07 Schlumberger Technology Corporation Method of assembling a drill bit with a jack element
US7419018B2 (en) 2006-11-01 2008-09-02 Hall David R Cam assembly in a downhole component
US7600586B2 (en) 2006-12-15 2009-10-13 Hall David R System for steering a drill string
US7392857B1 (en) 2007-01-03 2008-07-01 Hall David R Apparatus and method for vibrating a drill bit
US20080156536A1 (en) * 2007-01-03 2008-07-03 Hall David R Apparatus and Method for Vibrating a Drill Bit
USD678368S1 (en) 2007-02-12 2013-03-19 David R. Hall Drill bit with a pointed cutting element
USD674422S1 (en) 2007-02-12 2013-01-15 Hall David R Drill bit with a pointed cutting element and a shearing cutting element
US8342611B2 (en) 2007-05-15 2013-01-01 Schlumberger Technology Corporation Spring loaded pick
US7866416B2 (en) 2007-06-04 2011-01-11 Schlumberger Technology Corporation Clutch for a jack element
US20080296015A1 (en) * 2007-06-04 2008-12-04 Hall David R Clutch for a Jack Element
US8307919B2 (en) 2007-06-04 2012-11-13 Schlumberger Technology Corporation Clutch for a jack element
US8122980B2 (en) 2007-06-22 2012-02-28 Schlumberger Technology Corporation Rotary drag bit with pointed cutting elements
US20080314647A1 (en) * 2007-06-22 2008-12-25 Hall David R Rotary Drag Bit with Pointed Cutting Elements
US7721826B2 (en) 2007-09-06 2010-05-25 Schlumberger Technology Corporation Downhole jack assembly sensor
US7967083B2 (en) 2007-09-06 2011-06-28 Schlumberger Technology Corporation Sensor for determining a position of a jack element
US8499857B2 (en) 2007-09-06 2013-08-06 Schlumberger Technology Corporation Downhole jack assembly sensor
US20090095536A1 (en) * 2007-10-12 2009-04-16 Smith International, Inc. Rock bit with hydraulic configuration
US7913778B2 (en) * 2007-10-12 2011-03-29 Smith International, Inc. Rock bit with hydraulic configuration
US20090159340A1 (en) * 2007-10-12 2009-06-25 Smith International Corporation Rock bit with vectored hydraulic nozzle retention sleeves
US8091654B2 (en) 2007-10-12 2012-01-10 Smith International, Inc Rock bit with vectored hydraulic nozzle retention sleeves
US8292372B2 (en) 2007-12-21 2012-10-23 Hall David R Retention for holder shank
US8540037B2 (en) 2008-04-30 2013-09-24 Schlumberger Technology Corporation Layered polycrystalline diamond
US8931854B2 (en) 2008-04-30 2015-01-13 Schlumberger Technology Corporation Layered polycrystalline diamond
US8322796B2 (en) 2009-04-16 2012-12-04 Schlumberger Technology Corporation Seal with contact element for pick shield
US8701799B2 (en) 2009-04-29 2014-04-22 Schlumberger Technology Corporation Drill bit cutter pocket restitution
US20140196956A1 (en) * 2009-07-31 2014-07-17 Smith International, Inc. High shear roller cone drill bits
US8550190B2 (en) 2010-04-01 2013-10-08 David R. Hall Inner bit disposed within an outer bit
US8839888B2 (en) 2010-04-23 2014-09-23 Schlumberger Technology Corporation Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements
US9677343B2 (en) 2010-04-23 2017-06-13 Schlumberger Technology Corporation Tracking shearing cutters on a fixed bladed drill bit with pointed cutting elements
US8418784B2 (en) 2010-05-11 2013-04-16 David R. Hall Central cutting region of a drilling head assembly
US8820440B2 (en) 2010-10-01 2014-09-02 David R. Hall Drill bit steering assembly
US8333254B2 (en) 2010-10-01 2012-12-18 Hall David R Steering mechanism with a ring disposed about an outer diameter of a drill bit and method for drilling
US8342266B2 (en) 2011-03-15 2013-01-01 Hall David R Timed steering nozzle on a downhole drill bit
US20160123084A1 (en) * 2013-05-27 2016-05-05 David Hanns Drill bit
CN105378209A (en) * 2013-05-27 2016-03-02 大卫·汉斯 Drill bit
WO2015195855A1 (en) * 2014-06-19 2015-12-23 Tercel Oilfield Products Usa Llc Fixed-cutter drill bits generating cores
US10017994B2 (en) 2014-10-17 2018-07-10 Ashmin Holding Llc Boring apparatus and method

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