Method of fracturing high temperature wells and fracturing fluid

Details Method of fracturing high temperature wells and fracturing fluid Method of fracturing high temperature wells and fracturing fluid

1990-12-12

1992-04-14

Suchfield, George A.

Wells

Processes

Placing fluid into the formation

166280, 252 8551, E21B 43267

Patent

active

051039133

ABSTRACT:
The high temperature stability of an aqueous fracturing fluid is extended for use in high temperature (above 300.degree. F.) subterranean formations through the addition of quantities of unhydrated, particulate guar or guar derivative polymers prior to the pumping of the fracturing fluid into the formation. Additional high temperature stability is achieved through the addition of soluble bicarbonate to the fracturing fluid and raising the pH of the fracturing fluid to about 9.2 to 10.4.

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patent: 4502967 (1985-03-01), Conway
patent: 4566977 (1986-01-01), Hatfield
patent: 4848467 (1989-07-01), Cantu et al.

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