Diverting material and method of use for well treatment

Details Diverting material and method of use for well treatment Diverting material and method of use for well treatment

E - Fixed Constructions

21

B

31/11

E21B 43/22 (2006.01)

Patent

CA 1217320

ABSTRACT OF THE DISCLOSURE The present invention relates to a diverting material or fluid-loss additive for use in subterranean formations pene trated by a well bore comprising graded phthalimide particles. The phthalimide particles are introduced into the formation in a carrier fluid. The carrier fluid can include gelling agents or any of the various salts known to be useful in fluids employed in subterranean formation treatment. The phthalimide par- ticles can be used in elevated temperature oil and gas producing formations.

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