Method for Intervention Operations in Subsurface Hydrocarbon Formations
First Claim
Patent Images
1. A method for improving oil, gas, and water recovery from a hydrocarbon reservoir or well comprising:
- injecting into the reservoir or well nanoparticles in the range of 1-100 nanometers, the particles having been combined with a wetting agent in aqueous or hydrocarbon carrier fluid.
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Abstract
Methods are provided for improved intervention processes in a well. Nanoparticles are added to a fluid containing a wetting agent to enhance wetting of solid surfaces in and around the well, leading to improved flow capacity of the well.
76 Citations
30 Claims
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1. A method for improving oil, gas, and water recovery from a hydrocarbon reservoir or well comprising:
injecting into the reservoir or well nanoparticles in the range of 1-100 nanometers, the particles having been combined with a wetting agent in aqueous or hydrocarbon carrier fluid. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A well treatment fluid comprising;
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nanoparticles in the range of approximately 1 to approximately 100 nanometer size; and a wetting agent in an aqueous or hydrocarbon carrier fluid. - View Dependent Claims (8, 9, 10)
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11. A method for removal of paraffin or heavy hydrocarbon deposits in or around a well so as to increase flow rate of the well comprising:
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providing an aqueous fluid; adding additives comprising nanoparticles and a wetting agent to the aqueous fluid; injecting the aqueous fluid and additives into the well; and producing a fluid from the well. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for removal of water block around a well, comprising:
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providing an aqueous fluid; adding nanoparticles and a surfactant to the aqueous fluid; injecting the fluid and additives into the well; and producing a fluid from the well. - View Dependent Claims (21, 22, 23)
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24. A method for acidizing a carbonate reservoir comprising:
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providing an aqueous fluid; adding nanoparticles and wetting agent to the aqueous fluid to form a nanoparticle treating solution; pumping the treating solution down a well and into the reservoir; pumping an acid solution down the well; pumping the nanoparticle treating solution down the well; and producing fluids from the well. - View Dependent Claims (25, 26, 27)
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28. A method for hydraulic fracturing of a well comprising:
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providing an aqueous fluid; adding nanoparticles and wetting agent to the aqueous fluid to form a nanoparticle treating solution; and pumping the nanoparticle treating solution into the well at a pressure greater than pressure required to hydraulically fracture the well. - View Dependent Claims (29, 30)
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Specification