BOPI 12 BR / 2024 REPERTOIRE NUMERIQUE 28 O.A.P.I. – B.P. 887, YAOUNDE (Cameroun) – Tel. (237) 222 20 57 00 – Site web: http:/www.oapi.int – Email: oapi@oapi.int Fig. 1 ________________________________________ (11) 21749 Consulter le mémoire (51) E21B 1/00 (2023.01); E21B 17/042 (2023.01) ; F16L 15/00 (2023.01) (21) 1202400265 - PCT/EP2023/052169 (22) 30/01/2023 (30) EP n° 22154162.6 du 31/01/2022 (54) Drilling component. (72) JANSSON, Tomas (SE) et NORDBERG, Anders (SE) (73) SANDVIK MINING AND CONSTRUCTION TOOLS AB, 81181 SANDVIKEN (SE) (74) S.C.P AKKUM, AKKUM & Associates, No. 1777, rue 6.261, Yaoundé 2, Auditorium Jean Paul II boulevard, Face Brigade de Gendarmerie, Mbankolo, B.P. 4966, YAOUNDE (CM). (57) A drilling component 200 comprising a first end portion 260 configured to be arranged to face the a first section of a drill string, wherein the first end portion 260 comprises a first interconnecting portion 210 configured to engage a corresponding interconnecting portion of the first section of the drill string. The drilling component 200 further comprises a hollow interior 230 configured to extend along a length direction 140 of the drill string and to form a part of a passage through the drill string. The drilling component 200 comprises a wall 220 defining the hollow interior 230, wherein an area of a first cross-section 240 of the wall 220 is smaller than an area of a second cross-section 250 of the wall 220 and wherein the first cross-section 240 is arranged between the second cross-section 240 and the first end portion 260.
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