公开(公告)号：US20230390897A1

公开(公告)日：2023-12-07

申请号：US18033161

申请日：2021-10-19

申请人： Canopus Drilling Solutions Holding B.V.

发明人： Jan Jette BLANGE

IPC分类号： B24C3/32 ,  B24C9/00 ,  E21B7/18

CPC分类号： B24C3/32 ,  B24C9/00 ,  E21B7/18

摘要： The invention relates to increasing a concentration of particles (92) in a circumferentially enclosed stream (90) of a fluid mixed with the particles in a target area (90ct) of a cross-section (90c) of the stream transverse to a flow direction (90f) of the stream. Deflecting surfaces (31.1, 31.2, 31.3) are arranged in the stream to extend over respective angular zones (30α1, 30α2, 30α3) with respect to an axis (la) through the target part. The deflecting surfaces slant in the flow direction in a direction from the circumference of the stream towards the target area, and define angularly in between them multiple bypass openings (32.1, 32.2, 32.3) which extend over angular zones complementary (30β1, 30β2, 30β3) to the angular zones over which the deflecting surfaces extend, and which are larger than the particles. The deflecting surfaces deflect at least a part of the particles inwardly towards the axis. A target part (90t) of the stream with the target cross-section around the axis is discharged through an outlet (20), and a remaining part (90r) is discharged through the openings, between the target part and the circumference of the stream, such as to discharge the stream as composed of the target part and the remaining part. The invention relates to an assembly comprising a circumferential enclosure and a particle concentrating device, a particle concentrating device, a concentrator element, a method for increasing a concentration of particles, a method for directional drilling and the use of the assembly.