Invention Grant
- Patent Title: Coiled tubing drilling system
- Patent Title (中): 螺旋管钻孔系统
-
Application No.: US11995171Application Date: 2006-07-20
-
Publication No.: US07753141B2Publication Date: 2010-07-13
- Inventor: Timothy Gregory Hamilton Meyer , Duncan MacDonald
- Applicant: Timothy Gregory Hamilton Meyer , Duncan MacDonald
- Applicant Address: AU Pinjarra Hills, Queensland AU Ryde, NSW
- Assignee: CMTE Development Limited,AJ Lucas Coal Technologies Pty Limited
- Current Assignee: CMTE Development Limited,AJ Lucas Coal Technologies Pty Limited
- Current Assignee Address: AU Pinjarra Hills, Queensland AU Ryde, NSW
- Agency: Banres & Thornburg LLP
- Priority: AU2005903855 20050720
- International Application: PCT/AU2006/001030 WO 20060720
- International Announcement: WO2007/009189 WO 20070125
- Main IPC: E21B7/04
- IPC: E21B7/04 ; E21B19/22 ; E21B19/08
Abstract:
A drilling rig for drilling an underground borehole (5) into a seam (4) uses coiled metal tubing (8) fed by a tractor unit (11) from a drum (7) to provide a thrust force to a drilling head. The drilling head has a bent-sub assembly giving an angle of deviation which is controlled by rotating the coiled metal tubing in the borehole by way of rotation of the drum (7) in the frame (12) about the axis of the tube in the borehole (5).
Public/Granted literature
- US20090032307A1 Coiled Tubing Drilling System Public/Granted day:2009-02-05
Information query
