Borehole survey system and method of determining the difference

Details Borehole survey system and method of determining the difference Borehole survey system and method of determining the difference

1984-02-01

1986-09-30

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Borehole direction or inclination

73152, G01C 1900

Patent

active

046140409

ABSTRACT:
A borehole survey instrument has a probe with a polarized light system for transmitting a signal representing the angular orientation of the probe to the surface. Light from a source in the probe is directed through a polarizing filter with an axis of polarization orthogonal to the longitudinal axis of the probe. The polarized light beam is transmitted to the surface through an optical fiber light conduit. The angle of polarization is detected with a rotating polarizing filter and provides a measure of the probe orientation. In surveying a borehole, azimuth is determined from inclinometer measurements. The probe orientation in vertical sections of the borehole is measured by the polarized light system. Two measures of borehole azimuth are combined, providing an improved measure of azimuth in boreholes near vertical and near horizontal.

REFERENCES:
patent: 3571937 (1971-03-01), Sears
patent: 3808697 (1974-05-01), Hall
patent: 4197654 (1980-04-01), Van Steenwyk et al.

Affiliated with

Also associated with

Rating

Borehole survey system and method of determining the difference does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Borehole survey system and method of determining the difference , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Borehole survey system and method of determining the difference will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-978721