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Increasing of OOIP in Lk Reservoir on Jamarica Oil Field

: At the end of year 2000 a new development Well Jam– 182 was drilled. According new data, more precise picture about southern part of the Lk reservoir was obtained. It was reflected on new structural – tectonic view and new petrophysical approach. According to good production results of well Jam-182, new development well Jam-64R has been done, in the same tectonic block. This well also had good production results. After petrophysical analysis we have found that reservoir consists of thin beds of sandstones, separated with thick beds of shale. After correlation of well logs Jam-182 and Jam-64R with logs of other wells which are located in the zone towards the south, we have observed same type of Lk reservoir. Until now we thought that the Lk reservoir doesn’ t exist in southern part of the whole structure. New facts about this reservoir gave us an opportunity to bring new conclusions about pinching out of the Lk reservoir. Extension of Lk reservoir in the direction of south, lead to new estimation of OOIP. These enable oil production from non perspective wells. Production prediction of these wells was based on material balance. Input parameters for IPR curve were production data, than data from pressure build-up analysis of surrounding wells, and their well logs. Because all existing infrastructure could be used, reservoir development is very economic.

Jamarica Field; Lk Reservoir; Well Jam-182; Increasing of OOIP; Reinterpretation; Petrophysical and Structural Geological Data; Workover; Material Balance; Production Prediction; Recovery Factor.

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