Treatment for recycling fracture water—gas and oil recovery in shale deposits
OwnerWilliam B. Kerfootinventor
Life of this patent
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Abstract
A method and apparatus for hydrocarbon recovery and/or treatment of frac water includes introducing a volume of water into a formation, recovering the introduced water, with the recovered introduced water further comprising suspended hydrocarbon product. The recovered liquid is treated to remove substantial amounts of the suspended hydrocarbon product, provide the treated recovered liquid with a ORP in a range of 150 mv to 1000 mv, and partially desalinated, and is either re-introduced as treated recovered liquid with the ORP into a formation to assist in recovery of additional hydrocarbon deposits in the formation, or is stored to reduce the ORP and then subsequently discharged into surface waters.
Claims18
A method of hydrocarbon recovery, the method comprising:
- treating a volume of water that has suspended hydrocarbon product by exposing the volume of water to ozone and/or a hydro-peroxide to produce the volume of water having the ORP, with the ORP being in a range of about 150 mv to 1000 mv, with the volume of water that is treated being frac-water that is recovered from fracture operations in a formation having hydrocarbons;
- and
- introducing a volume of the volume of water into a formation with the water having the oxidation/reduction potential (ORP).
A method of hydrocarbon recovery, the method comprising:
- recovering water from an earth formation, the water having a quantity of hydrocarbon product suspended in the water;
- treating the water to elevate an oxidation/reduction potential (ORP) of the water and remove at least a portion of the hydrocarbon product and with treating the water having the suspended hydrocarbon product including exposing the water to ozone and/or a hydro-peroxide to produce the water having the ORP, with the ORP being in a range of about 150 mv to 1000 mv
- introducing the water into an earth formation with the water having the oxidation/reduction potential (ORP) to recover additional hydrocarbon product.
Dependencies are inferred from the claim text.