Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3770Chemical news office., 1932 |
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Strona 20
... depth of a sedimentary formation likely to contain oil . An artificial earthquake is produced by the explosion of a charge of gelignite buried in the ground at a depth of about 20 feet ; the resultant 23 C3 elastic waves being recorded ...
... depth of a sedimentary formation likely to contain oil . An artificial earthquake is produced by the explosion of a charge of gelignite buried in the ground at a depth of about 20 feet ; the resultant 23 C3 elastic waves being recorded ...
Strona 21
... depth of the second medium is determined from the time along the indirect path . The depth his given by the relation- h tV2 L 2 cot @ where is the time and L the distance between the observation station and the explosion point . The ...
... depth of the second medium is determined from the time along the indirect path . The depth his given by the relation- h tV2 L 2 cot @ where is the time and L the distance between the observation station and the explosion point . The ...
Strona 24
... depth . Research into the viscosity of mud fluids has rendered it possible to pre- pare a pumpable fluid , containing barytes and certain chemical reagents , of a specific gravity more than twice that of water which , if pumped into a ...
... depth . Research into the viscosity of mud fluids has rendered it possible to pre- pare a pumpable fluid , containing barytes and certain chemical reagents , of a specific gravity more than twice that of water which , if pumped into a ...
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