Boring or penetrating the earth – Processes – Boring with specific fluid
Patent
1977-10-03
1978-10-17
Novosad, Stephen J.
Boring or penetrating the earth
Processes
Boring with specific fluid
166292, E21B 33138
Patent
active
041203690
ABSTRACT:
A method for drilling a well through a subterranean formation containing one or more zones of unconsolidated dolomite, wherein the drilling operation is interrupted periodically to consolidate the newly drilled incompetent dolomite by the injection of a sequence of reactant slugs comprised of (I) an aqueous solution containing an acid, a surface active agent and a precipitating agent for silicates, (II) an aqueous solution containing a water-soluble silicate, and (III) an aqueous solution containing a precipitating agent for silicates.
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Fischer Paul W.
Gallus Julius P.
Pye David S.
Farrell Daniel R.
Hartman Richard C.
Novosad Stephen J.
Sandford Dean
Suchfield George A.
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