Earth boring – well treating – and oil field chemistry – Well treating – Contains inorganic component other than water or clay
Patent
1996-05-01
1999-03-02
Tucker, Philip
Earth boring, well treating, and oil field chemistry
Well treating
Contains inorganic component other than water or clay
507209, 507211, 507217, 507266, 507922, 166308, C09K 300, E21B 4317
Patent
active
058771271
ABSTRACT:
A method is provided for controlling the delay time of aqueous borate-crosslinked polysaccharide-based fluids for hydraulic fracturing and related applications which allows on-the-fly control of the delay time without comprising overall fluid integrity. Without having to modify the total boron content nor pH of the fracturing fluid, the delay time is controlled by adding a polyol to the fracturing fluid at a first rate, determining the resulting delay time and then adjusting the rate of the polyol addition to the fracturing fluid until the desired delay time is achieved.
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Card Roger John
Maberry L. Jack
McConnell S. Bruce
Nelson Erik Bentley
Nimerick Kenneth H.
Schlumberger Technology Corporation
Tucker Philip
Vick, Jr. John E.
Y'Barbo Douglas
LandOfFree
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