Wells – Processes – Heating – cooling or insulating
Patent
1984-04-30
1986-04-01
Novosad, Stephen J.
Wells
Processes
Heating, cooling or insulating
166272, 166288, E21B 4324
Patent
active
045791767
ABSTRACT:
To prevent dissolution of sand grains or of the original bond between these grains around a well when hot aqueous fluid is passed through the well in an oil recovery process, the sand grains are at least once treated with a solution of Al ions in a solvent such as water. Such treatment with Al ions of sand grains is also beneficial when the grains have been consolidated by means of a silicon polyhalide. Attack of the bond between the grains by formation water is then considerably decreased.
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Davies David R.
Zwolle Simon
Novosad Stephen J.
Shell Oil Company
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