A Chemical Tracer Plug Interpretation Model for Well Residual Oil Saturation Test

Abstract

Abstract: This paper presents a chemical tracer plug interpretation model for well residual oil saturation. This model advantages over past pulse interpretation model in accordance with real injected conditions and wide tracer selections as well as much lower cost of used tracers. It can be used for interpretation of field test results from in-situ tracer zone without obvious drift in shut-in oil wells. The numerical simulation indicates that the hold-up volume ratio determined by recovery section between original tracer and secondary tracer is not sensitive to the tracer diffusion. Compared with past numerical simulation results, the difference of residual oil saturation given by these two methods could be less than 0.5%PV, and compared with well pulse interpretation model, 2% can be increased in interpreted precision using this model.

Key words: chemistry, tracer, residual oil saturation

CLC Number:

TE311

PEI Lian-jun, ZHANG Jun-jie, LI Xiao-shan. A Chemical Tracer Plug Interpretation Model for Well Residual Oil Saturation Test[J]. Xinjiang Petroleum Geology, 2008, 29(5): 607-609.

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A Chemical Tracer Plug Interpretation Model for Well Residual Oil Saturation Test

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