Method and means for determining the subsurface position of a bl

Details Method and means for determining the subsurface position of a bl Method and means for determining the subsurface position of a bl

1984-09-26

1987-12-08

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166 64, 175 40, 73151, 181104, 367 25, E21B 4700, G01V 140

Patent

active

047113030

ABSTRACT:
The subsurface position of a blowing well with respect to an adjacent relief well is determined by detecting at a plurality of axially and tangentially spaced locations in the relief well acoustic waves emanating from a subsurface location of the blowing well. The distance between the wells is calculated on the basis of the difference in times of arrival of the waves at said axially spaced locations. The radial direction of the blowing well relative to the relief well is determined by measuring the acoustic intensity resulting from the waves at each of said tangentially spaced locations.

REFERENCES:
patent: Re31607 (1984-06-01), Vogel et al.
patent: 3282355 (1966-11-01), Henderson
patent: 3683326 (1972-08-01), White
patent: 3722605 (1973-03-01), Isham
patent: 4016942 (1977-04-01), Wallis, Jr. et al.
patent: 4105993 (1978-08-01), Grassy et al.
patent: 4114721 (1978-09-01), Glenn, Jr.

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