A sandstone formation is showing accelerated production decline during the fully compensated waterflood development. The sporadic well tests suggested that liquid rate was following the non-uniform formation pressure decline, despite the full compensation of the offtakes. The paper presents a multiwell downhole pressure gauge deconvolution technique and associated study on the reasons of non-uniform area formation pressure decline and non-uniform injection water front propagation and resulted in recommendations which proved their efficiency after implementation.

Keywords:
Upstream Oil & Gas, bottom hole pressure, transient response, pressure response, Drillstem Testing, diagonal transient response, deconvolution, formation pressure, Well Intervention, waterflooding
Subjects:
Improved and Enhanced Recovery, Formation Evaluation & Management, Waterflooding, Drillstem/well testing
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2019. International Petroleum Technology Conference
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