A Study of the Thin Film-Coated Swelling Retarding Particles in Fractured Carbonate Reservoirs for Water Plugging and Profile Control

Guojun Li, Meilong Fu, Xuejiao Li and Jiani Hu
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Guojun Li: College of Petroleum Engineering, Yangtze University, Wuhan 430100, China
Meilong Fu: College of Petroleum Engineering, Yangtze University, Wuhan 430100, China
Xuejiao Li: College of Petroleum Engineering, Yangtze University, Wuhan 430100, China
Jiani Hu: College of Petroleum Engineering, Yangtze University, Wuhan 430100, China

Energies, 2022, vol. 15, issue 3, 1-11

Abstract: T oilfield is the fractured-vuggy carbonate reservoir at a temperature of around 130 °C, with salinity of up to 22 × 10 4 mg/L. In order to solve the problem of the high water cut in the late development stage of T oilfield, we selected XN-T from 27 kinds of swelling retarding particles by testing their swelling capacity, and coated a thin film to improve its retarding swelling capacity. The mechanisms of strong water absorption and water-holding abilities of particles were analyzed by infrared spectrometry and SEM. In the core flow experiment, the plugging rate was found to be 98.42%. Finally, the injection parameters of the coated particles were optimized to maximize the water plugging and profile control ability, resulting in an optimal particle size of 0.4–0.6 mm and a mass fraction of 10%.

Keywords: carbonate oil reservoir; profile control; swelling retarding particles; physical film coating; injection parameter (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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