Kerogen and Organic Matter Degrading Additive for Hydraulic Fracturing Fluids
AssigneeSaudi Arabian Oil Company
InventorsKatherine Leigh Hull, Ghaithan A. Al-Muntasheri, Younane N. Abousleiman, David Jacobi
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Abstract
Provided in this disclosure, in part, are methods, compositions, and systems for degrading organic matter, such as kerogen, in a subterranean formation. Further, these methods, compositions, and systems allow for increased hydraulic fracturing efficiencies in subterranean formations, such as unconventional rock reservoirs. Also provided in this disclosure is a method of treating kerogen in a subterranean formation including placing in the subterranean formation a composition that includes a first oxidizer including a persulfate and a second oxidizer including a bromate.
Claims20
A method of treating a subterranean formation, comprising:
- specifying a concentration of an oxidizer in an aqueous composition based at least in part on an amount of kerogen to degrade in the subterranean formation;
- and
- placing the aqueous composition comprising the oxidizer at the concentration as specified through a wellbore into the subterranean formation to degrade the kerogen.
A method of fracturing a subterranean formation penetrated by a wellbore, comprising:
- specifying a concentration of an oxidizer in a composition correlative with an amount of kerogen to be treated in the subterranean formation;
- treating the kerogen in the subterranean formation with the composition having the oxidizer at the specified concentration;
- and
- fracturing the subterranean formation.
A method of treating a subterranean formation, comprising:
- placing an aqueous composition comprising a persulfate and a bromate into the subterranean formation;
- and
- degrading kerogen in the subterranean formation with the persulfate and the bromate.
Dependencies are inferred from the claim text.