Wells – Processes – Cementing – plugging or consolidating
Patent
1994-12-06
1996-08-20
Suchfield, George A.
Wells
Processes
Cementing, plugging or consolidating
106714, E21B 3313
Patent
active
055470246
ABSTRACT:
A method of cementing an oil and gas wellbore is accomplished by mixing together blast furnace slag, construction grade cement and water to form a pumpable slurry. The slurry is then pumped to a selected location within an oil and gas well and allowed to solidify within the wellbore. The blast furnace slag alters the properties of the construction grade cement so that it can be used in the construction of oil and gas wells, where it would otherwise not be feasible to use. The blast furnace slag enhances the physical and chemical properties of the construction grade cement, increasing gel times and decreasing fluid loss.
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Offshore South East Asia 10th Conference & Exhibition World Trade Centre, Singapore, Technical Paper No. 94021, A Sound Alternative For Oilwell Cementing, DiLullo et al., pp. 1-7, Dec. 6, 1994.
Smith, Dwight K., "The Manufacture, Chemistry and Classification of Oilwell Cements", Cementing, 1987, pp. 7-17.
BJ Services Co
Suchfield George A.
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