Control system for borehole tools

Details Control system for borehole tools Control system for borehole tools

1983-11-02

1987-03-10

Novosad, Stephen J.

Boring or penetrating the earth

Boring with explosion in inaccessible hole

Independent firing of plural charges

166 551, 166 651, E21B 43116

Patent

active

046484710

ABSTRACT:
A method and apparatus for controlling a borehole tool, which tool has been conveyed into the borehole on production tubing. Apparatus includes a downhole control module connected to the tool for actuating and/or monitoring various subassemblies and/or events within the borehole. A communications link between the control module and the surface of the borehole is achieved with a wireline which has been terminated in a manner permitting electrical connection between the wireline and the control module to be made and broken in the downhole environment. Invention therefore combines the mechanical advantages of the rigid tubing for conveying the tool with the communication advantages of the wireline.

REFERENCES:
patent: 3706344 (1972-12-01), Vann
patent: 3776323 (1973-12-01), Spidell et al.
patent: 3976347 (1976-08-01), Cooke, Sr. et al.
patent: 4113016 (1978-09-01), Trott
patent: 4349072 (1982-09-01), Escaron et al.
patent: 4375834 (1983-03-01), Trott
patent: 4454814 (1984-06-01), Henry et al.
patent: 4484639 (1984-11-01), Ayers
patent: 4496010 (1985-01-01), Chapman, III
patent: 4527636 (1985-07-01), Bordon

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