Proppant Transport With Low Polymer Concentration Slurry
AssigneePfp Technology, LLC
InventorsRobert McDaniel, Rasolomiarantsoa Nathalie
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Abstract
Proppant transport can be performed with a fluid having: (a) a low concentration of a crosslinkable first polymer, (b) a delayed effect crosslinker, and (c) optionally, a small amount of a second, high molecular weight, friction-reducing polymer composition.
Claims18
A process for propping open a fractured subterranean formation with a proppant slurry introduced down a wellbore length and into the fractured subterranean formation, said proppant slurry comprising:
- (a) proppants in
- (b) a transport fluid that contains (i) 0.1 to less than 10 ppt of a first friction-reducing, crosslinkable, polymer, (ii) a crosslinker having a delayed crosslinking effect, and (iii) 0-1 ppt of a second friction-reducing polymer composition having a molecular weight above 15 million.
A proppant slurry that comprises (a) 0.1 to less than 10 ppt of a friction-reducing, crosslinkable, first polymer, (b) a crosslinker having a delayed crosslinking effect, and (c) 0.1-1 ppt of a friction-reducing second polymer having a molecular weight above 15 million that is able to withstand the effects of brines having a total dissolved solids content of 50 ppm or higher.
A process for propping open a fractured subterranean formation with a proppant slurry introduced down a wellbore length and into the fractured subterranean formation, said proppant slurry comprising:
- (a) proppants in
- (b) a transport fluid that contains 0.1 to less than 10 ppt of a first friction-reducing, crosslinkable, polymer.
Dependencies are inferred from the claim text.