The most economic approach to solving the problem of increased water-cut occasioned by depleting reserve in Four selected oil wells in the REYES oil field of the Niger Delta with a view to not just optimizing the production potential but also extending the life of the Field is presented in this study. Utilizing preliminary results from reservoir saturation tool (RST) log, Reservoir performance plots and decline curve analyses, the candidate wells for intervention were selected and deployed into the chosen intervention Technique – Through-Tubing Water Shut-off and Recompletion Utilizing Coiled Tubing Cement Packer Placement. Post cement packer placement result obtained indicated an increase in daily oil production of 1,842 barrel of oil per day (bopd) with an attendant five-year life extension. Interestingly, an estimated amount of two million sixty-three thousand and forty Dollars ($2,063,040.00) is accruable from these wells for a month’s production, assuming cost of crude oil per barrel is $40/bbl after the intervention. Cumulatively, the estimated AFE cost for the four wells (even though only two of the proposed four wells were actually recompleted) for the same production period amounts to one million six hundred and fifty thousand, seven hundred and thirteen dollars, eighty-one cents ($1,650,713.81) which actually proves this technique to be cost effective with a faster break-even period of a month (28 days) relative to workover with rig that has about 10months break-even period.
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