Cnpc USA Corporation

China National Petroleum Corporation

Beijing Huamei Inc.

Javier Davila

Chris X Cheng

Xiongwen Yang

Xu Wang

Xiaomin C Cheng

Yu Liu

Zhenzhou Yang

Liang Zhao

Yonghong Wang

Demin Chen

Hongtao Liu

Yuxin Wang

Disclosed is a drill bit for cutting formation comprises a bit body, a plurality of cutters, a plurality of blades with pockets to accommodate the cutters respectively. Each of the plurality of cutters has at least one alignment structure to align with at least one counter-alignment structure on each of the pockets to locate the rotary orientation between each of the plurality of cutters and each of the corresponding pockets.

Shaped cutter with alignment structure for drill bit and assembly method thereof

The present disclosure provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth comprises a base, a table connected to a top of the base. a concave shaped surface on the center portion of a top surface of the table; three cutting ridges with each extending from a vertex of the concave shaped surface to an outer edge of the top surface; three cutting bevels with each locating between two cutting ridges of the three cutting ridges; each of the three cutting ridges has a fillet.

Polycrystalline diamond cutter with improved geometry for cooling and cutting evacuation and efficiency and durability

The present invention provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit.

Convex ridge type non-planar cutting tooth and diamond drill bit

Growing community of inventors

Houston, TX, United States of America

Javier Davila