Title:
REMOTE OPERATION WIRE LINE CORE SAMPLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2005/024174
Kind Code:
A1
Abstract:
A remote operation wire line core sampling device capable of increasing the efficiency of working and maintaining the wall of a hole by using a stabilized see-bottom core drill at a see-bottom and adopting a wire line system, comprising a drill rod held by the chuck of the see-bottom core drill, a wire line core barrel having, at the tip thereof, a bit for annularly drilling a ground, an inner tube assembly detachably incorporated in the wire line core barrel, and an over-shot assembly (5) having a function for the engagement thereof with a spear head part at the top end of the inner tube assembly. The device also comprises a water swivel (18) in which water supply ports (3) and (4) are formed at the upper and lower parts thereof and a modified built-in type over-shot assembly (5) is incorporated therein so as to reside at the intermediate part thereof.
More Like This:
Inventors:
KADOMOTO YUKIO (JP)
YAMANAKA ISAO (JP)
TANAKA HIROSHI (JP)
TSUCHIYA TAKAHIKO (JP)
YAMANAKA ISAO (JP)
TANAKA HIROSHI (JP)
TSUCHIYA TAKAHIKO (JP)
Application Number:
PCT/JP2004/013001
Publication Date:
March 17, 2005
Filing Date:
September 01, 2004
Export Citation:
Assignee:
MITSUI SHIPBUILDING ENG (JP)
MAIKAI CO LTD K (JP)
TOHO CHIKAKOKI CO LTD (JP)
KADOMOTO YUKIO (JP)
YAMANAKA ISAO (JP)
TANAKA HIROSHI (JP)
TSUCHIYA TAKAHIKO (JP)
MAIKAI CO LTD K (JP)
TOHO CHIKAKOKI CO LTD (JP)
KADOMOTO YUKIO (JP)
YAMANAKA ISAO (JP)
TANAKA HIROSHI (JP)
TSUCHIYA TAKAHIKO (JP)
International Classes:
E02D1/04; E21B25/02; G01N1/08; (IPC1-7): E21B25/02; E02D1/04
Foreign References:
| JP2002266585A | 2002-09-18 | |||
| JPH11256974A | 1999-09-21 | |||
| JP2002285780A | 2002-10-03 |
Attorney, Agent or Firm:
Oda, Haruchika (1-24 Toranomon 1-chome, Minato-k, Tokyo 01, JP)
Download PDF: