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US 2021/0277300 A1Published application
Hydraulic fracking fluid for generating proppants in situ and fracking method with proppant generation in situ
AssigneeYpf TecnologíA S.A.
InventorsGabriel LOMBARDO, María Laura VERA, Pablo Alejandro RAFFO, Simón MARCO, Marcos Eduardo COUSTET, Roque Carlos DIETRICH
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Abstract
A hydraulic fracking aqueous fluid, including: water; one or more soluble calcium salts; a carbonate ion generating compound; and one or more soluble zinc salts. A method for fracking an underground formation using the hydraulic fracking fluid.
Claims27
A hydraulic fracking aqueous fluid, comprising:
- water;
- one or more soluble calcium salts;
- a carbonate ion generating compound;
- and
- one or more soluble zinc salts.
2 more elements
A method of fracking a shale formation and propping up shale rock fractures comprising the steps of:
- a) mixing water with a soluble calcium salt;
- b) adding to the mixture obtained in a) a carbonate ion generating compound
- c) adding to the mixture obtained in b) a soluble zinc salt, obtaining thus a hydraulic aqueous fluid;
- d) injecting under pressure the hydraulic aqueous fluid obtained in c) into the shale rock formation in order to produce rock fractures;
- and
- e) letting the injected hydraulic aqueous fluid to warm under the temperature and pressure conditions within the formation in order to generate carbonate ions from the carbonate ion generating compound and produce a calcium/zinc carbonate precipitate that will prop up the rock fractures.
3 more elements
Dependencies are inferred from the claim text.