US 10,479,927 B2Granted

Treatment of kerogen in subterranean formations

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.

Claims1

Dependent claims

A method of fracturing a subterranean formation penetrated by a wellbore, comprising:

specifying a concentration of a bromate in a composition correlative with an amount of kerogen to be treated in the subterranean formation and correlative with an amount of iron sulfide in the subterranean formation;
treating the kerogen in the subterranean formation with the composition comprising a first oxidizer comprising a persulfate and a second oxidizer comprising the bromate, wherein the persulfate has a concentration of about 0.00005 M to about 1.0 M in the composition and the bromate has a concentration of about 0.00005 M to about 0.20 M in the composition;
and
fracturing the subterranean formation.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 16/382,089Filed 11 Apr 2019 · continuation
Priority: 3 Sep 2015
Published: US 2019/0264089 A129 Aug 2019
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

C09K 8/58
Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations:…
C09K 8/032
Specific additives for general use in well-drilling compositions: inorganic additives
C09K 8/665
Compositions based on water or polar solvents: containing inorganic compounds
C09K 8/805
Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open: coated proppants

Family

Application62/213,744Us provisional application · filed 3 Sep 2015
Application15/254,173Parent of this continuation · filed 1 Sep 2016
US 2019/0264089 A1Pre-grant publication · published 29 Aug 2019
US 10,351,758 B2Parent of this continuation
US 2017/0066959 A1Published application
US 10,479,927 B2This patent

From the US filing history. Foreign family members aren’t listed.

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