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US 4,232,740 AGranted
High temperature stable sand control method
AssigneeTexaco Development Corporation
InventorJack H. Park
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AssigneeTexaco Development Corporation
InventorJack H. Park
Estimating the term…
This invention relates to a method for treating wells completed in subterranean formations to form a mechanically stable, permeable mass which permits flow of fluids therethrough into or from the well, while restricting the movement of unconsolidated earth formation particles such as sand into the well. This method is especially suitable for treating producing wells in a subterranean formation being subjected to thermal oil recovery stimulation of viscous oil production such as by steam flooding, which causes rapid deteriation of consolidated sand or gravel masses formed with plastic resins. The method comprises contacting sand with an aqueous solution of calcium hydroxide, plus an effective amount of calcium salt having solubility greater than calcium hydroxide, such as calcium chloride, plus an alkalinity agent such as sodium hydroxide.
A method for treating a subterranean, petroleum-containing formation which contains unconsolidated sand, said formation being penetrated by at least one well in fluid communication with the subterranean formation, for the purpose of forming a permeable solid barrier which restrains the movement of particulate solid matter including sand while permitting passage of fluid including petroleum therethrough, comprising:
A method of forming a permeable, mechanically stable sand restraining barrier in a formation penetrated by at least one
Dependencies are inferred from the claim text.