| Title | Kamojang Field Case Study - Using Formation Images to Resolve Reservoir Delineation and Development Issues in West Java, Indonesia |
|---|---|
| Authors | Huntoro T., Wathan R.R, Hendrowiowo K, Sumantri H. and Lloyd P.M. |
| Year | 1996 |
| Conference | New Zealand Geothermal Workshop |
| Keywords | |
| Abstract | The Pertamina Kamojang geothermal field in west Java produces high temperature (250?C) steam fiom htured volcanic reservoirs. Understanding the lithofacies, hcture density and the orientation of the fracture systems using electrical images fiom the Formation MicroScannerTM have proven critical to the successful development of the field. The analysis of the strike direction of the hcture system in the subsurface has helped Pertamina explain the unexpectedly low production some of the wells drilled in the central parts of the field (away fiom faulting associated with the margin of the collapsed caldera). The dominant fracture direction in the subsurface proved to be at 90" to that initially interpreted fiom conventional surface techniques. Retargeting wells to be drilled across the strike of the dominant fracture system resulted in significant (6 fold) production improvements. |