Oil and gas well cementing composition
First Claim
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1. A METHOD OF CEMENTING A CASING IN AN OIL OR GAS WELL COMPRISING INTRODUCING INTO THE ANNULUS BETWEEN THE CASING AND THE BORE HOLE WALL OF SAID WELL A PUMPABLE CEMENT SLURRY CAPABLE OF SETTING UP AND CONTAINING A HYDRAULIC CALCAREOUS CEMENT, WATER AND GILSONITE IN DISCRETE PARTICLE FORM AS AN AGGREGATE IN AMOUNT OF THE ABOUT 0.5 TO 10 TIMES BY VOLUME THE AMOUNT OF THE CEMENT PRESENT IN THE SLURRY, SAID GILSONITE CONSTITUTING THE ONLY AGGREGATE PRESENT IN THE SLURRY;
- AND THEN PERMITTING THE SLURRY TO SET UP WITHIN THE WELL.
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1 Claim
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1. A METHOD OF CEMENTING A CASING IN AN OIL OR GAS WELL COMPRISING INTRODUCING INTO THE ANNULUS BETWEEN THE CASING AND THE BORE HOLE WALL OF SAID WELL A PUMPABLE CEMENT SLURRY CAPABLE OF SETTING UP AND CONTAINING A HYDRAULIC CALCAREOUS CEMENT, WATER AND GILSONITE IN DISCRETE PARTICLE FORM AS AN AGGREGATE IN AMOUNT OF THE ABOUT 0.5 TO 10 TIMES BY VOLUME THE AMOUNT OF THE CEMENT PRESENT IN THE SLURRY, SAID GILSONITE CONSTITUTING THE ONLY AGGREGATE PRESENT IN THE SLURRY;
- AND THEN PERMITTING THE SLURRY TO SET UP WITHIN THE WELL.
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Current AssigneeEldon J. Mayhew
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Original AssigneeEldon J. Mayhew
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InventorsMayhew, Eldon J.
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Application NumberUS03/746,585Time in Patent Office1,422 DaysField of SearchUS Class Current166/293CPC Class CodesC04B 24/36 Bituminous materials, e.g. ...C04B 28/02 containing hydraulic cement...
