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EP0189212A1 - Trépan à entaille coupant - Google Patents

Trépan à entaille coupant Download PDF

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Publication number
EP0189212A1
EP0189212A1 EP86100988A EP86100988A EP0189212A1 EP 0189212 A1 EP0189212 A1 EP 0189212A1 EP 86100988 A EP86100988 A EP 86100988A EP 86100988 A EP86100988 A EP 86100988A EP 0189212 A1 EP0189212 A1 EP 0189212A1
Authority
EP
European Patent Office
Prior art keywords
tooth
teeth
bit
cutting
triad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86100988A
Other languages
German (de)
English (en)
Inventor
Hsin I. Huang
Alexander K. Meskin
Robert Trujillo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Oilfield Operations LLC
Original Assignee
Christensen Inc
Eastman Christensen Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Christensen Inc, Eastman Christensen Co filed Critical Christensen Inc
Publication of EP0189212A1 publication Critical patent/EP0189212A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements

Definitions

  • the present invention relates to the field of earth boring tools and in particular to rotating drag bits utilizing polycrystalline synthetic diamond teeth as the cutting elements.
  • One of the primary differences provided in the cutting action of a rotating drag bit and a roller cone bit is that the rotating drag bit cuts by shearing action whereas the roller cone bit cuts by crushing.
  • the performance of rotating drag bits has been substantially increased by the introduction of synthetic polycrystalline diamond elements which can be used as the cutting elements.
  • the Assignee of the present invention has pioneered in the design of synthetic diamond rotating bits and the means by which such diamond teeth are attached to, retained on and exposed above the face of the bit to provide useful cutting action.
  • diamond teeth on a rotating bit will slice into or shear grooves into the rock formation in the bottom of a hole.
  • the teeth are collectively arranged on a bit face in an overlapping arrangement.
  • one row of diamond teeth will typically have an offset row of diamond teeth disposed behind it.
  • the offset row is disposed on the bit face with a radial distribution which leaves the teeth in the half spaces between the teeth of the preceding row, albeit as azimuthally displaced behind the preceding row.
  • Other designs contemplate disposition of succeeding rows of teeth in other fractional radial increments such as three rows collectively comprising a cutting unit with each row radially offset from the azimuthally preceding row by one third of the intertooth spacing.
  • Kandle "Drill Cutting Head" U.S. Patent 2,960,312.
  • Kandle two concentric annular wheels, each carrying a plurality of teeth in a rotating drag bit, cut two circular kerfs with the interlying land between the kerfs being cut, crumbled or crushed by one of two interlying clearing cutters.
  • the clearing cutters are added to the design almost as an afterthought, Kandle is an example of an instance where two spaced-apart kerfs are cut into the rock formation and the interlying rock removed by an interkerf cutter.
  • Kerf cutting has also been used to an extent within the roller cones itself as is exemplified by Youngblood, "Roller Cutter with Major and Minor Insert Rows", U.S. Patent 4,202,419.
  • the present invention is an improvement in a rotating bit having a bit face including a plurality of polycrystalline diamond teeth disposed on the bit face.
  • the improvement comprises at least a first and second polycrystalline diamond tooth for cutting kerfs.
  • a third polycrystalline diamond tooth, associated with the first and second polycrystalline diamond teeth and disposed therebetween, is provided for clearing material lying between the kerfs which is cut by the first and second teeth.
  • the third tooth is azimuthally displaced with respect to at least one of the first and second teeth.
  • the improvement is illustrated in four embodiments.
  • the first and second teeth are disposed on the bit face at substantially the same azimuthal position.
  • the first and second teeth are radially spaced apart and the third tooth is azimuthally disposed behind or follows the first and second bit teeth as defined by the direction of rotation of the rotating bit.
  • first and second teeth are both radially and azimuthally offset from each other.
  • the third tooth is radially disposed between the first and second, and is azimuthally disposed behind or follows both the first and second teeth.
  • first and second teeth are azimuthally and radially disposed from each other on the bit face of the bit.
  • the third tooth is azimuthally disposed behind the first tooth and in front of or leads the second tooth.
  • the third tooth is azimuthally disposed in front of or leads both the first and second teeth.
  • the radial spacing between the first and second teeth of each triad decreases as the distance of the triad from the center of rotation of the bit increases.
  • the invention further includes a method of cutting with a rotating bit having a plurality of synthetic polycrystalline diamond elements disposed on the bit comprising the steps of cutting two radially spaced concentric kerfs into a rock formation by two kerf cutting teeth.
  • the space between the kerf cutting teeth is cleared with a third clearing tooth.
  • Each of the two kerf cutting teeth have a corresponding third clearing tooth.
  • the step of cutting further comprises the steps of cutting a first kerf, clearing the rock disposed between the first kerf and a second kerf to be cut by an azimuthally following third clearing tooth, and then subsequently cutting a second kerf with an azimuthally following tooth.
  • the invention relates to a design wherein kerfing action in a synthetic polycrystalline diamond rotating bit is optimized.
  • the cutting teeth of the bit are associated in triads.
  • the first two teeth of the triads are particularly adapted and arranged to cut parallel kerfs.
  • the third tooth of the triad is particularly adapted and arranged to cut into the interlying space in the rock formation between the first two teeth or to remove the interlying land between the kerfs cut by the preceding first two teeth of the triad.
  • the last tooth is arranged and configured to act as a hammer or chisel and to provide a broad surface of cutting contact than the corresponding first two teeth of the triad.
  • a coring mining bit is characterized by an outer gage 12 and inner gage 14.
  • Bit 10 is divided into six 60 degree segments as delineated by radial waterways 16.
  • At least one and generally a plurality of polycrystalline diamond teeth 18 are disposed near or on the edge of each waterway 16.
  • Teeth 18 may in fact be any cutting elements now known or later devised in the art although they are described here as synthetic polycrystalline diamond teeth such as incorporated in the various designs of bits sold under the trademark BallaSet marketed by Norton Christensen, Inc. of Salt Lake City, Utah.
  • Teeth 18 are collectively arranged to form groups of triads.
  • teeth 18a form a leading pair of a first collective triad of teeth of which tooth 18b is the third tooth.
  • tooth 18b is radially disposed in the half space between teeth 18a and azimuthally displaced behind tooth 18a by a predetermined angle, in this case approximately 60 degrees.
  • Teeth 20a serves substantially the same purpose with respect to tooth 20b.
  • teeth 20a and 20b collectively forming a kerfing triad.
  • Additional teeth, such as gage defining teeth 24 may also be provided on bit 10 to provide cutting assistance in a conventional fashion.
  • FIG 2 shows the pattern of coverage of a single triad of teeth in a cross-sectional view in enlarged scale as would be seen in a fixed longitudinal plane as the bit rotates.
  • the triad comprised of teeth 18a and b, are depicted by way of example in Figure 2.
  • First teeth 18a will traverse any given plane cutting two parallel circular kerfs.
  • tooth 18b which is disposed approximately in the half space between teeth 18a.
  • each of the teeth are shown as triangular in cross section, such as would be the case when triangular polycrystalline synthetic diamond teeth are used, such as manufactured by General Electric Co. under the trademark "GEOSET".
  • the invention is not restricted or limited to the use of any particular profile of tooth or cutting element.
  • Figure 3a is a cross-sectional view of a mold corresponding to line 3a-3a of Figure 1 in which the pair of teeth of the triad, such as teeth 18a would be disposed.
  • the triangular diamond element is disposed in a corresponding triangular indentation 26a or b machined into graphite mold 28.
  • Mold 28 is then backfilled with a conventional tungsten carbide powder matrix and the entire composite is infiltrated by a conventional process to form an infiltrated matrix bit.
  • each tooth 18a is inclined at a selected angle within mold 28.
  • indentation 26a for one of teeth 18a is inclined at an angle of 11 degrees with respect to centerline 30.
  • Figure 3b illustrates a second section taken from mold 28 corresponding to the position of tooth 18b and teeth 24, corresponding to line 3b-3b of Figure 1.
  • Teeth such as teeth 18b, 20b and 22b of Figure 1 will be disposed within indentation 36 and gage teeth 24 are disposed within indentations 38.
  • Tooth 18b is generally perpendicularly disposed with respect to the bit face 40 and teeth 24 extend outwardly at an angle of 27 degrees with respect to the vertical. Only a small portion of teeth 24 is exposed (0.070 inch) as compared to the exposure of teeth 18a and 18b (0.180 inch).
  • the teeth, disposed in mold 28 and as depicted in the radial dispositions illustrated in Figures 3a and 3b, collectively combine to cut an azimuthal swath or form a pattern of coverage as diagrammatically depicted by Figure 2.
  • FIG 4 where another embodiment of a mining bit, generally denoted by reference numeral 42, and which is a variation of the tooth pattern as depicted in Figures 1-3, is shown in plan view.
  • Face 44 of bit 42 is divided into three 120 degree sectors as defined by radial waterways 46.
  • a triad of teeth 48a and 48b are disposed within each sector, beginning at an azimuthal displacement of approximately 45 degrees behind the preceding waterway 46.
  • the triad is comprised up a pair of teeth 48a and a following single tooth 48b.
  • Teeth 48a include a generally triangular prismatic polycrystalline synthetic diamond elements such as manufactured by General Electric under the trademark "GEOSET” in a tooth structure such as those found in the BallaSet bits manufactured by Norton Christensen of Salt Lake City, Utah. However, it is entirely within the scope of the invention that other tooth structures now known or later devised could be substituted with equal facility.
  • pair of teeth 48a are disposed on bit face 44 on the same azimuthal position, but are radially displaced by predetermined distance.
  • the triangular cutters of teeth 48a are tangentially set, namely having an apical ridge generally parallel to the tangent of the radius at the situs of the tooth placement. Teeth 48a thus cut two parallel circular kerfs into the underlying rock formation.
  • Behind teeth 48a is a third tooth 48b which is comprised of a cylindrical axially mounted synthetic polycrystalline diamond such as is sold by the People's Republic of China.
  • the radial distance between teeth 48a is equal to or less than the diameter of cylindrical tooth 48b.
  • Tooth 48b is azimuthally displaced behind pair of teeth 48a and in the interlying radial gap between teeth 48a.
  • Each sector of bit 42 may also include a plurality of gage protecting cutters 50 which generally maintain or protect the gage, but do not coact with the triad of cutters 48a and 48b to cut by kerfing.
  • Each of the triad of cutters in each of the sectors are radially disposed on bit face 44 to provide a complete coverage across the radial sweep of the bit face as seen by any given longitudinally fixed plane in the rock formation.
  • the triad of teeth 52 sweep through a portion of bit face 44 nearest outer gage 54, while a triad of teeth 56 sweep through a middle portion, and triad of teeth 48a and 48b sweep that portion nearest inner gage 58.
  • outermost triad 52 scribes its outermost kerf at approximately 0.12 inch (3.05 millimeters) from outer gage 54 while the center of the outermost kerf line of triad 56 is scribed at 0.15 inch (3.81 millimeters) from outer gage 54.
  • the center of the outermost kerf of triad 48a and 48b is scribed at 0.19 inch (4.83 millimeters) from outer gage 54.
  • the exposure above bit face 44 of the leading pair of teeth, such as teeth 48a of the triad 48a and 48b is at least 0.150 inch (3.81 millimeters) above bit face 44, while gage protecting teeth 50 and the third tooth of the triad, such as tooth 48b have a lesser exposure, for example 0.105 inch (2.67 millimeters).
  • the spacing between the kerfs cut by the teeth of the triad may vary among the teeth.
  • the outermost triad 52 may have a inter-kerf spacing of approximately 0.25 inch (6.35 millimeters), triad 56 an inter-kerf spacing of 0.31 inch (7.87 millimeters) and triad 48a and 48b in inter-kerf spacing of 0.38 inch (9.65 millimeters).
  • the inter-kerf spacing is less. This spacing increases as the radial distance of the triad from the center of the drill string decreases.
  • the inter-kerf spacing can be made inversely proportional to the radial distance of the third tooth, such as tooth 48b.
  • FIG. 5 a plan view of a second embodiment is illustrated.
  • the bit generally denoted by reference numeral 41, is again divided into three sectors of 120 degrees by radial waterways 47.
  • Each sector includes a triad of cutters.
  • the radially innermost triad is comprised of a pair of teeth 49a and an azimuthally following tooth 49b radially disposed between pair of teeth 49a.
  • the mid-radial triad 57 and outermost triad 53 are similarly constituted.
  • Gage protection teeth 51 are also disposed on the inner and outer gages.
  • the second embodiment of Figure 5 differs from that of Figure 4 in that the second tooth of pair 49a of teeth is azimuthally disposed approximately 15 degrees behind the leading face of the first tooth of parir 49a.
  • Third clearing tooth 49b is azimuthally disposed approximately.30 degrees behind the leading face of the second tooth of pair 49a.
  • FIG. 6 wherein another embodiment of the invention is illustrated, showing in plan view a mining bit, generally denoted by reference numeral 60.
  • mining bit 60 is divided into three sectors as defined by radial waterways 62.
  • Gage protecting teeth 64 are provided as before, however, within each sector the triad of teeth are arranged so that the first kerf cutting tooth 66 is followed by the clearing tooth 68 and hence by the second kerf cutting tooth 70.
  • leading kerf cutting tooth 66 is the radially innermost tooth of the triad of teeth 66-70, while the second kerf cutting tooth 70 is the radially outermost tooth of the triad.
  • the first kerf cutting tooth 66 is azimuthally displaced behind the center of waterway 62 by approximately 35 degrees.
  • Clearing tooth 68 is then azimuthally displaced behind the leading edge of tooth 66 by approximately 30 degrees.
  • the second kerf cutting tooth 70 has its leading edge azimuthally displaced behind the center of clearing tooth 68 by approximately 20 degrees.
  • the radial displacement of teeth 66, 68 and 70 is adjusted so that clearing tooth 68 lies in the halfspace between the kerf cutting teeth 66 and 70.
  • the radial displacement between azimuthally offset teeth 66 and 70 is equal to or less than the radial effective cutting width of clearing tooth 68, which may be slightly larger or smaller than the actual physical radial dimension of clearing tooth 68.
  • effective cutting width of a tooth is defined as the maximum radial dimension of rock land between two concentric kerfs or kerf cutting teeth, which a cutter can remove in a single pass.
  • the inter-kerf distance between teeth 66 and 70 is similarly adjusted to compensate for the greater cutting rate experienced near outer gage 72 as contrasted to that experienced near inner gage 74 as previously described in connection with the embodiment of Figure 4.
  • annular swath cut into the rock formation by the triad of teeth 66, 68 and 70 overlaps with the swath cut by the triad of teeth 76 and 78 also disposed on bit face 80 of bit 60 in a manner similar to that discussed above.
  • a mining bit generally denoted by reference numeral 82, again is organized into three sectors defined by radial waterways 84.
  • Each sector includes a plurality of gage protection teeth 86.
  • clearing tooth 92 azimuthally precedes the following kerf cutters.
  • the leading kerf cutting tooth 88 is associated with a second kerf cutting tooth 90 and a leading clearing tooth 92.
  • teeth 88 and 90 are tangentiallly set BallaSet type teeth
  • clearing tooth 92 is a axially or stud mounted cylindrical polycrystalline diamond cutter.
  • clearing tooth 92 is azimuthally displaced behind its preceding waterway by approximately 30 degrees.
  • the leading edge of the second kerf cutting tooth 90 is azimuthally displaced behind clearing tooth 92 by approximately 20 degrees, while the first kerf cutting tooth 38 has its leading edge azimuthally displaced in front of second kerf cutting tooth 90 by approximately 35 degrees.
  • kerfing teeth 88 and 90 are tangentially set BallaSet type teeth, while clearing tooth 92 is a stud set, cylindrical, polycrystalline diamond element.
  • Teeth 96 form a second triad and teeth 98 a third triad in a similar manner.
  • Each of the triad of teeth 98, 96 and 88-92 are, as described before, radially disposed across bit face 94 to cut overlapping annular swaths ranging from outer gage 100 to inner gage 102.
  • the triads are also characterized by the variable inter-kerf spacing across bit face 94 as previously described.
  • the design of mining bit 60 of Figure 6 exhibited the highest drill rate, bit 41 of Figure 5 a drilling rate approximately two thirds less, and the design of bit 82 of Figure 7 the lowest driljng rate. It is not entirely well understood why the triad placement of bit 60 is dramatically better than the triad placements of bits 41, 42 and 82.
  • FIG 8 shows a diagramatic plan view of a petroleum bit incorporating the invention.
  • the petroleum bit generally denoted by reference numeral 104, includes an inner crowfoot 106.
  • the hydraulic fluid flows outwardly through spiral waterways 108 to a plurality of junk slots 110 defined into outer gage 112. Between waterways 108 are collectors 114. Collectors 114 and waterways 108 in turn define spiral lands 116 upon which the cutting elements are disposed (not shown in Figure 8).
  • a profile of petroleum bit 104 as depicted in Figure 8 and seen in cross-sectional sideview taken through line 9-9 of Figure 8 is shown in Figure 9.
  • Crowfoot openings 106 here are seen inclined outwardly and in or near nose 118 of bit 104.
  • Generally flat portion or flank 120 extends from nose 118 to shoulder 122 where the bit face extends into outer gage 112.
  • a triad of teeth, collectively denoted by reference numeral 124, is diagrammatically depicted in enlarged scale on flank 120 where two BallaSet type teeth 126 with an interlying cylindrical l cutter 128 is shown in cross section.
  • the disposition of teeth according to the invention across the face of petroleum bit 104 can now be understood by turning to the plot detail as shown in Figure 10.
  • Figure 10 the triad design of Figure 6 is implemented although any one of the embodiments could be employed through suitable substitution of BallaSet type teeth for cylindrical cutters and vice a versa.
  • the plot detail of Figure 10 is a diagrammatic depiction of the disposition of teeth across the entire surface of bit 104 including the gage. The plot is taken as if the bit were cut from the outer gage to the center along any given radius and then laid out and stretched to form a flat strip. Therefore, in the projection of the plot detail of Figure 10 some distortion of proportion is unavoidable. Therefore Figure 10 must be understood as showing a logical relationship only and no implication should be drawn from the illustrated proportionate dispositions.
  • Petroleum bit 104 is divided into three sectors 130, 132 and 134.
  • Each sector 130-134 includes two spiral lands 116a and 116b in the case of section 130, lands 116c and 116d in the case of section 132, and 116e and 116f in the case of section 134.
  • section 130 shows a plurality of tangentially set BallaSet type teeth such as tooth 136 and a plurality of cylindrical synthetic polycrystalline stud mounted teeth, such as tooth 138 disposed on land 116a and tooth 148a on land 116b.
  • a plurality of surface-set natural diamonds 140 are also included in the nose area 118 and in shoulder portion 122 as well as through out gage 112. Surface-set diamonds 140 are conventional and are provided for abrasion protection in a manner well noted in the art.
  • the first kerf cutter, tooth 136 leads and is radially disposed outward with respect to the interlying cylindrical cutter 138.
  • the next kerf cutter of the triad is BallaSet ' type tooth 142 which is the radially outermost tooth on second land 116b.
  • the second triad of teeth also includes tooth 142, cylindrical polycrystalline diamond (pcd) tooth 144 and BallaSet type tooth 146 on land 116a.
  • the triad of teeth continue to be interlaced between lands 116a and 116b toward shoulder 122.
  • the third triad also includes BallaSet tooth 146, cylindrical tooth 148 and BallaSet type tooth 150 each forming with respect to the other the type of relationship as depicted in Figure 6.
  • the fourth triad includes BallaSet tooth 150, cylindrical tooth 152 and BallaSet type tooth 154 on land 116a.
  • each BallaSet type tooth doubles as forming a kerfing cutter in adjacent triads of cutting teeth.
  • the disposition of teeth is completed by enumerating the following triads; BallaSet tooth 154, cylindrical tooth 156, and BallaSet tooth 158; BallaSet tooth 158, cylindrical tooth 160 and BallaSet tooth 162; BallaSet tooth 162, cylindrical tooth 164 and BallaSet tooth 166; BallaSet tooth 166, cylindrical tooth 168 and BallaSet tooth 170; BallaSet tooth 170, cylindrical tooth 172 and BallaSet tooth 174; BallaSet tooth 174, and an omitted cylindrical tooth due to the presence of the junk slot, and BallaSet tooth 176; BallaSet tooth 176, cylindrical tooth 178 on land 116a, and finally BallaSet tooth 180.
  • additional cylindrical teeth such as cylindrical cutters 182 on land 116a and BallaSet tooth 184 on the leading edge of land 116a may also be included to provide redundant cutting coverage according to conventional design principles.
  • each of the sections 132 and 134 on bit 104 are similarly provided with triads of kerf cutting teeth on their paired lands in the same manner as described in connection with section 130. Furthermore, as described in the embodiments of Figures 4-7, the triads on adjacent sections 130-134 are offset with respect to the triads in the other sections to provide overlapping annular cutting swaths into the face of the rock formation, thereby ultimately providing cutter coverage from the center of the bit to the gage.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP86100988A 1985-01-25 1986-01-24 Trépan à entaille coupant Withdrawn EP0189212A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69520385A 1985-01-25 1985-01-25
US695203 1985-01-25

Publications (1)

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EP0189212A1 true EP0189212A1 (fr) 1986-07-30

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EP86100988A Withdrawn EP0189212A1 (fr) 1985-01-25 1986-01-24 Trépan à entaille coupant

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EP (1) EP0189212A1 (fr)
CN (1) CN86100885A (fr)
CA (1) CA1264734A (fr)
ZA (1) ZA86556B (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265718A3 (en) * 1986-10-16 1989-10-25 Eastman Christensen Company An improved bit design for a rotating bit incorporating synthetic polycrystalline cutters
US7316279B2 (en) 2004-10-28 2008-01-08 Diamond Innovations, Inc. Polycrystalline cutter with multiple cutting edges
US8327955B2 (en) 2009-06-29 2012-12-11 Baker Hughes Incorporated Non-parallel face polycrystalline diamond cutter and drilling tools so equipped
CN103742078A (zh) * 2014-01-08 2014-04-23 地质矿产部无锡钻探工具厂 一种梳状扇形块孕镶金刚石钻头
CN103806915A (zh) * 2014-02-13 2014-05-21 湖南工程学院 一种海底多金属硫化物切削头
US8739904B2 (en) 2009-08-07 2014-06-03 Baker Hughes Incorporated Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped
US8936659B2 (en) 2010-04-14 2015-01-20 Baker Hughes Incorporated Methods of forming diamond particles having organic compounds attached thereto and compositions thereof
US9140072B2 (en) 2013-02-28 2015-09-22 Baker Hughes Incorporated Cutting elements including non-planar interfaces, earth-boring tools including such cutting elements, and methods of forming cutting elements
CN113153164A (zh) * 2021-04-20 2021-07-23 金沙县仁德钻探工具有限公司 一种四翼平顶八齿钻头
CN120352176A (zh) * 2025-04-21 2025-07-22 山东科技大学 一种海洋矿区地质勘察用柱状沉积物切割取样装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109226226B (zh) * 2018-07-23 2020-04-24 山东冽泉环保工程咨询有限公司 一种大口径圆筒钻头式原位修复系统
CN113530455A (zh) * 2021-08-31 2021-10-22 中国地质大学（武汉） 一种同心圆齿和螺旋齿相结合的金刚石钻头

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE377460C (de) * 1923-06-19 Hans Hundrieser Gesteinbohrer mit Brechflaechen zwischen den Zaehnen
FR1174641A (fr) * 1957-05-07 1959-03-13 Diabor Procédé pour la fixation de taillants rapportés sur des outils de coupe et outils de coupe, notamment couronnes de forage, ainsi obtenus
GB2125086A (en) * 1982-08-09 1984-02-29 Dresser Ind Drag bit
EP0117506A2 (fr) * 1983-02-24 1984-09-05 Eastman Christensen Company Dent de coupe et trépan rotatif avec un élément diamanté polycristallin totalement exposé
EP0119620A2 (fr) * 1983-03-21 1984-09-26 Eastman Christensen Company Type de dent comportant l'utilisation d'éléments de coupe diamantés cylindriques
EP0121802A2 (fr) * 1983-03-14 1984-10-17 Eastman Christensen Company Forme de dent pour trépan de forage de sol
EP0127077A2 (fr) * 1983-05-20 1984-12-05 Eastman Christensen Company Trépan de forage rotatif

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE377460C (de) * 1923-06-19 Hans Hundrieser Gesteinbohrer mit Brechflaechen zwischen den Zaehnen
FR1174641A (fr) * 1957-05-07 1959-03-13 Diabor Procédé pour la fixation de taillants rapportés sur des outils de coupe et outils de coupe, notamment couronnes de forage, ainsi obtenus
GB2125086A (en) * 1982-08-09 1984-02-29 Dresser Ind Drag bit
EP0117506A2 (fr) * 1983-02-24 1984-09-05 Eastman Christensen Company Dent de coupe et trépan rotatif avec un élément diamanté polycristallin totalement exposé
EP0121802A2 (fr) * 1983-03-14 1984-10-17 Eastman Christensen Company Forme de dent pour trépan de forage de sol
EP0119620A2 (fr) * 1983-03-21 1984-09-26 Eastman Christensen Company Type de dent comportant l'utilisation d'éléments de coupe diamantés cylindriques
EP0127077A2 (fr) * 1983-05-20 1984-12-05 Eastman Christensen Company Trépan de forage rotatif

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WORLD OIL, vol. 200, no. 7, June 1985, pages 149-152,154, Houston, Texas, US; A. PARK: "Coring. Part 4-Bit considerations" *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265718A3 (en) * 1986-10-16 1989-10-25 Eastman Christensen Company An improved bit design for a rotating bit incorporating synthetic polycrystalline cutters
US7316279B2 (en) 2004-10-28 2008-01-08 Diamond Innovations, Inc. Polycrystalline cutter with multiple cutting edges
US9598909B2 (en) 2009-06-29 2017-03-21 Baker Hughes Incorporated Superabrasive cutters with grooves on the cutting face and drill bits and drilling tools so equipped
US8851206B2 (en) 2009-06-29 2014-10-07 Baker Hughes Incorporated Oblique face polycrystalline diamond cutter and drilling tools so equipped
US8327955B2 (en) 2009-06-29 2012-12-11 Baker Hughes Incorporated Non-parallel face polycrystalline diamond cutter and drilling tools so equipped
US8739904B2 (en) 2009-08-07 2014-06-03 Baker Hughes Incorporated Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped
US8936659B2 (en) 2010-04-14 2015-01-20 Baker Hughes Incorporated Methods of forming diamond particles having organic compounds attached thereto and compositions thereof
US9140072B2 (en) 2013-02-28 2015-09-22 Baker Hughes Incorporated Cutting elements including non-planar interfaces, earth-boring tools including such cutting elements, and methods of forming cutting elements
CN103742078A (zh) * 2014-01-08 2014-04-23 地质矿产部无锡钻探工具厂 一种梳状扇形块孕镶金刚石钻头
CN103806915A (zh) * 2014-02-13 2014-05-21 湖南工程学院 一种海底多金属硫化物切削头
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CN113153164B (zh) * 2021-04-20 2024-02-23 金沙县仁德钻探工具有限公司 一种四翼平顶八齿钻头
CN120352176A (zh) * 2025-04-21 2025-07-22 山东科技大学 一种海洋矿区地质勘察用柱状沉积物切割取样装置

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CA1264734A (fr) 1990-01-23
CN86100885A (zh) 1986-08-20

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