Evaluation of multifunctional chemical agent as stimulation technique to improve productivity in bamboo oil field – Case study Sudan

Abstract

Bamboo field is located in block 2A Muglad Basin covers an area of 144 Square km. It consists of multi block, multi-layered under-saturated sandstone reservoir of late Cretaceous ages buried at depth ranging from 1000 m to 1700 m with crude oil viscosity ranges from 70 cp to 3000 cp. This study discuss the massive decrease in productivity in the field due to deposition of organic materials such as asphaltene and paraffin which is not only negatively affect the oil production rate , but also entails costly and time-consuming. Problems occur when these organic solids adhere to the formation or mechanical surfaces reducing production. by operating in order to tackle the excess productivity problem effectively, it is vital to identify the source of the problem first .and therefor accurate methodology required to diagnose and evaluate increasing productivity mechanism . pipesim program is used to evaluate the effectiveness of the multifunctional chemical MFCA agent as stimulation fluid for removing the organic material , reduce the viscosity and improve well productivity . After running the program before and after pumping the MFCA using the given data from the bamboo oil field for four wells. two wells BBE-1 and BBW-21 have responded to the MFCA process and show good productivity(BBE-1 from 03050.0 to 03.0.00)(BBW-21 from 039005 to 0364495 ), while BBW-54 and BBW-55 productivity remained almost the same , the viscosity of crude oil decreased