A Novel Formula of Diverting Acid System and Application

Abstract:

The key to successful stimulating carbonate reservoir is acid uniformly distribute in entire reservoir, diverting acid technology could effectively solve this problem. In this paper, completed a series of single agent contrast tests, such as corrosion inhibitor optimization evaluation experiment, Fe stabilizer optimization evaluation experiment, diverting agent optimization evaluation experiment, then formed a novel formula of diverting acid system. Meanwhile carried out a series of performance tests of acid system, including acid apparent viscosity test, high temperature dynamic corrosion test, acid dissolving rate test, acid etched conductivity test, acid-rock reaction kinetic parameters test, diverting acid diverting performance test, the results show that this system could keep stability and present well diverting performance in high temperature conditions. Stimulated a well by using this novel diverting acid system, achieved acid uniform distribution in heterogeneous reservoirs, and stimulation ratio was significant.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 734-739
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.734
• Online since: January 2013
• Authors: Yong Ming Li, Xue Ping Zhang, Qin Wen Zhang, Yang Gong, Jin Zhou Zhao
• Keywords: Acidizing, Carbonate Reservoirs, Diverting Acid, Field Application, Formula Optimization, Performance Test

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