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| First Page | Document Content | |
|---|---|---|
 Date: 2010-03-17 05:52:44Geophysics Drilling rig Petroleum engineering Petroleum geology Scientific drilling Geology Core drill ANDRILL Drill bit Petroleum Oilfield terminology Technology |
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| First Page | Document Content | |
|---|---|---|
Date: 2010-03-17 05:52:44Geophysics Drilling rig Petroleum engineering Petroleum geology Scientific drilling Geology Core drill ANDRILL Drill bit Petroleum Oilfield terminology Technology |
|
DRILLING OBSERVATION & SAMPLING OF THE EARTH’S CONTINENTAL CRUST