公开(公告)号：US12018539B2

公开(公告)日：2024-06-25

申请号：US17938413

申请日：2022-10-06

申请人： Altus Intervention (Technology) AS

发明人： Erlend Søyland

IPC分类号： E21B29/06

CPC分类号： E21B29/06

摘要： The invention relates to a radial driller for drilling a hole in a well tubular, the radial driller comprising a rotating sleeve that is rotated by means an axial drive organ via an angular gear, the rotating sleeve housing a partially closed cylinder, the cylinder housing a hydraulic piston, a first hydraulic chamber situated below the hydraulic piston, and a second hydraulic chamber situated above the hydraulic piston, the hydraulic piston having a connecting rod arrangement extending above the piston and through an opening in a dividing wall dividing the cylinder from a multipurpose section, and a drill bit connected to the hydraulic piston via the connecting rod arrangement. According to the invention, the radial driller further comprises a multipurpose element positioned directly below the drill bit, the multipurpose element defining a retracting chamber between the multipurpose element and the dividing wall.

公开(公告)号：US20230111830A1

公开(公告)日：2023-04-13

申请号：US17938413

申请日：2022-10-06

申请人： Altus Intervention (Technology) AS

发明人： Erlend SØYLAND

IPC分类号： E21B29/06

摘要： The invention relates to a radial driller for drilling a hole in a well tubular, the radial driller comprising a rotating sleeve that is rotated by means an axial drive organ via an angular gear, the rotating sleeve housing a partially closed cylinder, the cylinder housing a hydraulic piston, a first hydraulic chamber situated below the hydraulic piston, and a second hydraulic chamber situated above the hydraulic piston, the hydraulic piston having a connecting rod arrangement extending above the piston and through an opening in a dividing wall dividing the cylinder from a multipurpose section, and a drill bit connected to the hydraulic piston via the connecting rod arrangement. According to the invention, the radial driller further comprises a multipurpose element positioned directly below the drill bit, the multipurpose element defining a retracting chamber between the multipurpose element and the dividing wall.