Locating the relative trajectory of a relief well drilled to kil

Details Locating the relative trajectory of a relief well drilled to kil Locating the relative trajectory of a relief well drilled to kil

1982-09-08

1984-11-06

Novosad, Stephen J.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

175 61, E21B 4702

Patent

active

044807015

ABSTRACT:
In the drilling of a relief well to kill a blowout well, the relative trajectory of the relief well with respect to the blowout well is determined by selecting correlation points at which the relief well and the blowout well intersect the same subsurface formation. A resistivity log of the relief well indicates the correlation points with the blowout well. The location of the relative trajectories is obtained from the differences in depths of the formations and the correlation points.

REFERENCES:
patent: 4220214 (1980-09-01), Benoit
patent: 4224989 (1980-09-01), Blount
"Development and Future Trend of Controlled Directional Drilling", Tomorrow's Tools Today, M. E. Montrose, May 1939, pp. 2, 3, 6.

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