Wells – Processes – Separate steps of fracturing or attacking formation
Patent
1997-08-15
1999-03-30
Suchfield, George
Wells
Processes
Separate steps of fracturing or attacking formation
166294, 1663051, 106900, 405264, 507129, 507240, 507922, E21B 4322, E21B 4326
Patent
active
058876537
ABSTRACT:
There is provided an additive for and a method of using the additive to treat a clay-containing earthen formation, such as a subterranean formation, to substantially reduce formation damage caused by contact of the formation with an aqueous liquid foreign to the formation. The additive, which is employed in a water solution, is comprised of a chloride-free, quaternary ammonium compound which can be used without adverse affect upon animal, soil and water resources due to the chloride-free and substantial organic nature thereof. It thus biodegrades to environmentally acceptable end products.
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Tests Show Organic Clay Stabilizers Prevent Permeability Loss. Behenna, Sep. 12, 1994, p. 3.
Bishop L. W.
Holtmyer Marlin D.
Plainsman Technology, Inc.
Suchfield George
Weaver Thomas R.
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