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AssigneeSchlumberger Technology Corporation
InventorsXiaoping Qiu, Erik B. Nelson, Philip F. Sullivan, Vernon Constien
Estimating the term…
Methods and apparatus are disclosed for fracturing subterranean formations using fracturing fluids that are hydrated from dry mix blends. One aspect of the invention comprises a dry blended particulate composition for hydraulic fracturing comprising a particulate hydratable polysaccharide, a particulate crosslinking agent, and a slowly releasing particulate base. The compositions employ controlled release methods of particle dissolution. The invention reveals a dry blended particulate composition capable of significantly improved high temperature stability. Further, methods of fracturing and apparatus for rapidly hydrating and pumping the fracturing fluid into subterranean formations are disclosed.
A dry blended particulate composition for hydraulic fracturing, comprising:
A dry blend particulate composition for hydraulic fracturing of subterranean formations, comprising:
A stable particulate composition for hydraulic fracturing of subterranean formations, comprising:
A particulated composition for hydraulic fracturing of subterranean formations, comprising:
A dry blend composition adapted for application as a particulate component of an aqueous fracturing fluid, wherein the particulate component comprises a dry mixture of particulate galactomannan gum, an encapsulated particulate borate-containing crosslinking species, and a particulate alkaline base.
A dry blend composition adapted for application as a particulate component of an aqueous fracturing fluid useful at subterranean temperatures up to about 175.degree. F., wherein the particulate component comprises a dry mixture of galactomannan gum, an encapsulated borate-containing crosslinking species, and a metal oxide.
A dry blended particulate composition for hydraulic fracturing of subterranean formations, comprising:
Dependencies are inferred from the claim text.