Geological Contribution to The Enhanced Oil Recovery Project at Kenali Asam Field



Kenali Asam Field is the biggest oil field in the Jambi Area. The field was discovered by NIAM (Nederlandsh Indische Aardolic Maatschappij) in 1931 a has 16 productive hydrocarbon zones, one of which is a gas zone. On March 10, 1992 after the commerciality status was granted by Pertamina, the JOB took over the operatorship of Kenali Asam Field, according to with the Enhanced Oil Recovery (EOR) contract agree-ment between Pertamina and Asamera (Jambi EOR) Ltd. which was signed January 26, 1990. To improve oil recovery of Kenali Asam Field, the JOB has carried out water injection into potential zones. Geological knowledge, especially Production Geology, has played important role in generating a good geological interpretation and reservoir description. This information was very useful to Reservoir Engineers in estimating incremental oil recovery, and designing water injection patterns to optimize reservoir performance. Production Geology works which included: data collection, log interpretation, reservoir rock analysis, fluid contact determination, sandstone, shale and oil thickness determinations resulted in structure and isopach maps. Using these above mentioned data, activities of the enhanced oil recovery project at Kenali Asam were initiated. The geology of Kenali Asam field is not as simple as initially thought. An accurate geological inter-pretation gave important constributions in the application of enhanced oil recovery project at Kenali Asam field.


Authors : Budiyono, Burhan Denk, Suprihatin & M. Yunus