Frac fluids for far field diversion
AssigneeBJ Energy Solutions, LLC
InventorsLeonid Vigderman, Lingjuan Shen, Diankui Fu
Life of this patent
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Abstract
Aqueous well treatment fluids especially suited for use in far field diversion in low viscosity carrier fluids comprise water, a friction reducer, and a diverter. The diverter comprises dissolvable particulates and proppants. The dissolvable particulates have a specific gravity of from about 0.9 to about 1.6 and a particle size of about 50 mesh or less. The proppants have a specific gravity of from about 0.9 to about 1.4 and a particle size of from about 20 to about 100 mesh. The dissolvable particulates have a higher specific gravity and a smaller particle size than the proppant.
Claims22
An aqueous well treatment fluid, said well treatment fluid comprising:
- (a) water;
- (b) a friction reducer;
- (c) a diverter, said diverter comprising:
- i) dissolvable particulates having a specific gravity of from about 0.9 to about 1.6, the dissolvable particulates consisting essentially of dissolvable particulates having a particle size of about 100 mesh or less;
- and
- ii) proppants having a specific gravity of from about 0.9 to about 1.4, the proppants consisting essentially of proppants having a particle size of from about 20 to about 100 mesh;
- and
- iii) wherein said dissolvable particulates have a higher specific gravity and a smaller particle size than said proppants.
A method of enhancing production from a subterranean formation in a well, said method comprising:
- (a) providing an aqueous carrier fluid;
- (b) adding a diverter to said carrier fluid, said diverter comprising:
- i) dissolvable particulates having a specific gravity of from about 0.9 to about 1.6, the dissolvable particulates consisting essentially of dissolvable particulates having a particle size of about 100 mesh or less;
- and
- ii) proppants having) a specific gravity of from about 0.9 to about 1.4, the proppants consisting essentially of proppants having a particle size of from about 20 mesh to about 100 mesh;
- and
- iii) wherein said dissolvable particulates have a higher specific gravity and a smaller particle size than said proppants proppant;
- and
- (c) pumping said carrier fluid with said diverter into said formation.
Dependencies are inferred from the claim text.