In drilling a vertical wellbore, the spacing between major fractures are recorded. It has been found that this spacing is having a mean of 1800 ft anda variance of 3,240.000 ft Estimate the probability that there are no major fractures in the first 3000 ft of drilling and at a depth of 4000- S000 ft?

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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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In drilling a vertical wellbore, the spacing between major fractures are recorded. It has been found
that this spacing is having a mean of 1800 ft anda variance of 3,240.000 ft Estimate the
probability that there are no major fractures in the first 3000 ft of drilling and at a depth of 4000-
S000 ft?
Transcribed Image Text:In drilling a vertical wellbore, the spacing between major fractures are recorded. It has been found that this spacing is having a mean of 1800 ft anda variance of 3,240.000 ft Estimate the probability that there are no major fractures in the first 3000 ft of drilling and at a depth of 4000- S000 ft?
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