System for obtaining trube core samples
First Claim
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3. AN APPARATUS FOR OBTAINING A TRUE FLUID CONTENT CORE AND ARRANGED TO BE OPERATED AT THE LOWER END OF A STRING OF DRILL PIPE IN A BOREHOLE WHICH COMPRISES IN COMBINATION:
- AN OUTER HOUSING;
MEANS FOR CLOSING THE ANNULAR SPACE BETWEEN THE LOWER PORTION OF SAID HOUSING AND THE WALL OF SAID BOREHOLE;
A DRILLABLE PLATE MEANS CLOSING THE LOWER END OF SAID HOUSING;
A PRESSURE CORE BARREL AND CORE BIT WITHIN SAID HOUSING;
MEANS TO ROTATE SAID CORE BIT WHEREBY AS SAID CORE BIT IS ROTATED A CORE IS CUT AND MEANS FOR SEALING THE UPPER END OF SAID HOUSING.
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3 Claims
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3. AN APPARATUS FOR OBTAINING A TRUE FLUID CONTENT CORE AND ARRANGED TO BE OPERATED AT THE LOWER END OF A STRING OF DRILL PIPE IN A BOREHOLE WHICH COMPRISES IN COMBINATION:
- AN OUTER HOUSING;
MEANS FOR CLOSING THE ANNULAR SPACE BETWEEN THE LOWER PORTION OF SAID HOUSING AND THE WALL OF SAID BOREHOLE;
A DRILLABLE PLATE MEANS CLOSING THE LOWER END OF SAID HOUSING;
A PRESSURE CORE BARREL AND CORE BIT WITHIN SAID HOUSING;
MEANS TO ROTATE SAID CORE BIT WHEREBY AS SAID CORE BIT IS ROTATED A CORE IS CUT AND MEANS FOR SEALING THE UPPER END OF SAID HOUSING.
- AN OUTER HOUSING;
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Current AssigneeHarold C. Bridwell
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Original AssigneeHarold C. Bridwell
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InventorsBridwell, Harold C.
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Application NumberUS03/783,844Time in Patent Office2,072 DaysField of SearchUS Class Current175/59CPC Class CodesE21B 25/08 Coating, freezing, consolid...
