E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 47/022 (2006.01)
Patent
CA 2105564
2105564 9216719 PCTABS00016 A method for determining the orientation of the axis of a borehole with respect to an earth-fixed reference coordinate system at a location in the borehole comprising the steps of: measuring two cross-borehole components or two-cross-borehole components and an axial component of the earth's gravity field at a location in the borehole; measuring two cross-borehole components of the earth's magnetic field; determining the inclination angle of the borehole axis from the gravity component measurements; determining the highside angle reference of the cross-borehole measured components of the earth's gravity and magnetic fields from the gravity component measurements; determining more than one individual estimate of the azimuthal orientation of the borehole axis from the inclination angle, the highside angle reference and the two measured cross-borehole components of the earth's magnetic field; determining an error indicative parameter for each individual estimate of the azimuthal orientation of the borehole axis; and determining a single estimate of the azimuthal orientation of the borehole axis based on the individual estimates of azimuthal orientation and the error indicative parameters for each estimate.
LandOfFree
Error reduction in compensation of drill string interference... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Error reduction in compensation of drill string interference..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error reduction in compensation of drill string interference... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1595850