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1. WO2022115465 - PDC CUTTER WITH ENHANCED PERFORMANCE AND DURABILITY

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Publication Number WO/2022/115465
Publication Date 02.06.2022
International Application No. PCT/US2021/060593
International Filing Date 23.11.2021
IPC
E21B 10/567 2006.1
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
56Button-type inserts
567with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
CPC
E21B 10/54
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
54the bit being of the rotary drag type, e.g. fork-type bits
E21B 10/5673
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
10Drill bits
46characterised by wear resisting parts, e.g. diamond inserts
56Button-type inserts
567with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
5673having a non planar or non circular cutting face
Applicants
  • SCHLUMBERGER TECHNOLOGY CORPORATION [US]/[US] (US)
  • SCHLUMBERGER CANADA LIMITED [CA]/[CA] (CA)
  • SERVICES PETROLIERS SCHLUMBERGER [FR]/[FR] (FR)
  • SCHLUMBERGER TECHNOLOGY B.V. [NL]/[NL] (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, WS, ZA, ZM, ZW)
Inventors
  • ZHANG, Youhe
  • BURHAN, Yuri
  • CHEN, Ke
  • GAN, Xiaoge
Agents
  • CORDES, Stephen M.
  • NUTTALL, Colby C.
  • BALLEW, Kimberly
Priority Data
63/117,69424.11.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PDC CUTTER WITH ENHANCED PERFORMANCE AND DURABILITY
(FR) DISPOSITIF DE COUPE EN PDC À PERFORMANCE ET DURABILITÉ AMÉLIORÉES
front page image
Abstract
(EN) A cutting element has a cutting face at an axial end of the cutting element, a peripheral surface extending circumferentially around the cutting face, and a cutting edge formed between the cutting face and the peripheral surface. The cutting face has a non-planar geometry including a central region around a longitudinal axis of the cutting element, a plurality of grooves extending radially from a boundary of the central region to the cutting edge, wherein each groove has a base with a curved cross-sectional profile, and a plurality of lobes alternatingly formed between the plurality of grooves, wherein each lobe has a cross-sectional profile comprising an apex and opposite side surfaces sloping downwardly a distance from the apex to the base of adjacent grooves.
(FR) L'invention concerne un élément de coupe comprenant une face de coupe au niveau d'une extrémité axiale de l'élément de coupe, une surface périphérique qui s'étend de manière circonférentielle autour de la face de coupe, et une arête bord de coupe formée entre la face de coupe et la surface périphérique. La face de coupe présente une géométrie non plane comprenant une région centrale autour d'un axe longitudinal de l'élément de coupe, une pluralité de rainures s'étendant radialement depuis une limite de la région centrale jusqu'à l'arête de coupe, chaque rainure possédant une base ayant un profil en coupe transversale incurvé, et une pluralité de lobes formés en alternance entre la pluralité de rainures, chaque lobe ayant un profil de section transversale comprenant un sommet et des surfaces latérales opposées inclinées vers le bas sur une distance allant du sommet à la base de rainures adjacentes.
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