Title:
HOLE INVESTIGATOR, ITS MANUFACTURE AND ITS USE
Document Type and Number:
Japanese Patent JPS58193477
Kind Code:
A
Abstract:
Bore hole instrument and methods of manufacturing and using the same. The instrument includes an elongated flexible probe which is inserted into a bore hole and can travel freely around bends of relatively short radius in the hole. The probe includes a plurality of sensors, explosive charges or the like which are spaced apart and embedded in a flexible body comprising a mass of cushioning material, with a flexible outer casing of fabric having a high tensile strength. The probe is driven into a bore hole in piston-like fashion, and the flexible body enables the probe to travel freely around bends of relatively short radius. Instrumentation for processing signals from the probe is located at the surface of the earth. and a flexible cable interconnects the instrumentation with the probe.
Inventors:
BEN UEIDO OOKUSU DEITSUKINSON
Application Number:
JP2052283A
Publication Date:
November 11, 1983
Filing Date:
February 09, 1983
Export Citation:
Assignee:
DICKINSON BEN WADE O
International Classes:
E21B23/10; G01V1/40; E21B29/02; E21B47/00; E21B47/01; (IPC1-7): G01V1/40
Domestic Patent References:
| JPS5213762A | 1977-02-02 | |||
| JPS56137180A | 1981-10-26 |
Attorney, Agent or Firm:
Minoru Nakamura