The paper is sharing experience on using the cross-well pressure pulse-code testing (PCT) to locate the remaining reserves for the waterflood infill drilling.

R Field is a very mature giant field in Volgo-Ural region of Russia and has been under production for more than 70 years.

One of the key challenges at this stage is to locate the remaining reserves which have been migrating over the field following the waterflood patterns with a lot of areal and vertical flow profile complications.

Keywords:
Upstream Oil & Gas, pressure transient analysis, diffusivity, matching quality, generator, pressure response, iteration, effective thickness, xpm iteration, formation water saturation
Subjects:
Formation Evaluation & Management, Pressure transient analysis
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