Surveying method for locating target subterranean bodies
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United States of America Patent
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Sep 18, 1990
Grant Date -
N/A
app pub date -
Mar 1, 1989
filing date -
Mar 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved system for use in drilling a relief well to intersect a target blowout well. A probable location distribution is used to survey the location of the candidate relief wells and the blowout well. Through the use of the relative probable location distribution, the integral probabilities of find, intercept and collision are calculated. A relief well plan is then optimally designed to drill and insure a high integral probability of a find and intercept and a low probability of a collision. The method provided by the present invention allows a relief well to be drilled in a minimum time with minimum risk exposure.
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