Question: At what depth (in ft) will the 10 scft spherical air bubble fill exactly into the gap between the 7 (ID) casing and the 3

At what depth (in ft) will the 10 scft spherical air bubble fill exactly into the gap between the 7 (ID) casing and the 3 (OD) drillpipe, if the SG of the drilling mud is 195 Take the surface pr

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