Method and apparatus for determining the direction to a metal-ca

Details Method and apparatus for determining the direction to a metal-ca Method and apparatus for determining the direction to a metal-ca

1990-03-02

1992-01-28

Snow, Walter E.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

By magnetic means

175 45, G01V 311, E21B 704, E21B 47022

Patent

active

050846787

ABSTRACT:
A method of locating a target well lined with metal casing, comprising the steps of lowering an electrode and a magnetic field sensor into a relief well drilled towards the target well, injecting an alternating current into the ground by means of said electrode, and detecting by means of the magnetic field sensor the magnetic field set up by the lines of current flowing between the electrode and the casing of the target well.

REFERENCES:
patent: 3488574 (1970-01-01), Tanguy
patent: 4329647 (1982-05-01), Freedman
patent: 4700142 (1987-10-01), Kuckes
patent: 4791373 (1988-12-01), Kuckes
patent: 4791373 (1988-12-01), Kuckes

Affiliated with

Also associated with

Rating

Method and apparatus for determining the direction to a metal-ca does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for determining the direction to a metal-ca, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining the direction to a metal-ca will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1863104