Evaluasi Keekonomian Penanggulangan Produksi Air Dengan RPM ( Relative Permability Modifier ) Treatment Berdasarkan Kontrak Gross Split Pada Sumur "RE" Lapangan "DN"

The well "M" in the field "N" is an oil well producing in June 2004 with a starting water cut from 15% and along with time increases happened of water cut value become 97% its means water production become increasing and oil production decreases from 387 BOPD to 11 BOPD. RPM Treatment is used to overcome the problem of excessive water production. Prior to the RPM Treatment must be calculated first remaining reserves, identify production problems and determine the critical flow rate in order to know the problem of production. Evaluate the success of RPM Treatment by looking at the production and water cut after the RPM Treatment. Economic calculation of RPM treatment works also become part of the evaluation aspect in order to obtain a comprehensive evaluation result both from technical aspect and economic aspect. Based on the calculation of cumulative production and remaining reserve obtained reserves well "M" is still large. Identification by K.S Chan method that the well "M" experienced water coning and identification with the Craft & Hawkins method obtained the actual flow rate of oil greater than the critical flow rate, so that the main problem of well "M" is water production. Then from the evaluation before and after the treatment is done, the effect of RPM Treatment on production at well "M" can decrease the water cut from 97% to 77% and the oil increase from 11 BOPD to 88 BOPD. While the calculation of economics after the work of RPM Treatment generate revenue of 354,310 US$ with NPV 29,376 US$, ROR 67%, POT for 0.91 years and DPIR 1.1