Chemical News and Journal of Industrial Science, Tom 145,Wydanie 3770Chemical news office., 1932 |
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Strona 22
... recently completed at a depth of 10,585 feet - over two miles . An oil well may be drilled by either of two methods - percussion or rotary . In the former , a long chisel , or drill , is suspended by a drilling rope from the surface ...
... recently completed at a depth of 10,585 feet - over two miles . An oil well may be drilled by either of two methods - percussion or rotary . In the former , a long chisel , or drill , is suspended by a drilling rope from the surface ...
Strona 24
... recently drilled the final 5,400 feet of a 8,960 - foot well in four months . Before the development of modern scientific drilling practice it was not un- common for the drill to pierce an oil reser- voir - expectedly or unexpectedly ...
... recently drilled the final 5,400 feet of a 8,960 - foot well in four months . Before the development of modern scientific drilling practice it was not un- common for the drill to pierce an oil reser- voir - expectedly or unexpectedly ...
Strona 29
... recently published from Geneva , Briefly , the conference recommended the adoption of a standard , and the definition of a unit in terms of such standard , for the four vitamins A , B , C , and D. The con- ference further recommended ...
... recently published from Geneva , Briefly , the conference recommended the adoption of a standard , and the definition of a unit in terms of such standard , for the four vitamins A , B , C , and D. The con- ference further recommended ...
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activity adopted applied boring Buildings calculated carbon Communicated compared completed conduction considerably Controller convection cool countries define depth described determination direct discovery distribution drilling effect elastic emitted existence experience experimental explosion fact factor field flame flowing fuel furnace further gases given heat transfer important increased industry instance Institute for Medical interest issued June knowledge known laboratories late limited London lower Marks mass measured Medical Research medium ment method National Institute nature nights obtained Office operates original Patent path petroleum possible practical present pressure principles processes production proportion published quantities radiation recently recommended recorded reduced regions Research reservoir rock scientific shape simple solids square standard preparation station steam structural studied suitable surface temperature tion underground unit values vapour various vitamin waves workers