Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Patent
1994-11-15
1996-05-14
Tsay, Frank S.
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Tool position direction or inclination measuring or...
175 62, F21B 704
Patent
active
055159311
ABSTRACT:
A single guide wire system for use in continually directional drilling of boreholes, includes a guidewire extending generally parallel to the desired path of the borehole. The guidewire is connected at a first end to one side of a reversible source of direct current, and at a second end to ground. A second side of the DC source is also connected to ground. A known current flow in a first direction for a first period of time and in a second direction for a second period of time produces corresponding static magnetic fields in the region of the borehole. The vector components of the fields are measured in the borehole by a 3-axis magnetometer, and from these vector components the effects of the Earth's magnetic field are canceled and the distance and direction from the borehole to the guidewire are determined. These values permit control of further drilling of the borehole along a desired path.
REFERENCES:
patent: 3529682 (1970-09-01), Coyne et al.
patent: 3712391 (1973-01-01), Coyne
patent: 3907045 (1975-09-01), Dahl et al.
patent: 4578675 (1986-03-01), MacLeod
patent: 4593770 (1986-06-01), Hoehn, Jr.
patent: 4700142 (1987-10-01), Kuckes
patent: 4791373 (1988-12-01), Kuckes
patent: 4933640 (1990-06-01), Kuckes
patent: 5320180 (1994-06-01), Ruley et al.
Applied Geophysics, Telford et al, pp. 144-147.
Tsay Frank S.
Vector Magnetics Inc.
LandOfFree
Single-wire guidance system for drilling boreholes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single-wire guidance system for drilling boreholes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single-wire guidance system for drilling boreholes will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1890857