Rigless method for selective zonal isolation in subterranean formations using colloidal silica

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United States of America Patent

PATENT NO 11572761
SERIAL NO

17644144

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Abstract

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A method for zonal isolation in a subterranean formation includes identifying a zone of interest within the subterranean formation, determining a static temperature of the zone of interest, determining a time duration for gelation of a treatment fluid, determining a concentration of an accelerator in the treatment fluid, determining a volume of the treatment fluid to be delivered to the zone of interest, determining a correlation between cooling of a wellbore near the zone of interest and a delivery rate of the treatment fluid, determining a target wellbore temperature, delivering a cooling stage until the target wellbore temperature is reached, and delivering a treatment stage. Delivering the cooling stage and the treatment stage results in forming, within the zone of interest, a gel that is impermeable to fluid flow.

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Patent Owner(s)

  • SAUDI ARABIAN OIL COMPANY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abdulal, Haider Jaffer Anak, SA 1 0
Alabdrabalnabi, Mohammed I Al Qatif, SA 3 0
Almohsin, Ayman Mohammed Doha, SA 16 67
Sherief, Mohamed Hassan Dhahran, SA 3 0

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