Publications

The Teluk Rendah Field is a faulted anticline structure located in the South Jambi “B” Block, South Sumatera Basin. This field was discovered in 1991 and produced gas and condensate from the Lower Pendopo Formation from 2004 to 2012. The Lower Pendopo reservoir is interpreted to be a fluvial system. Initial pressure testing indicated a compartmentalization between the wells which was attributed to the observed faulting. Post production pressure testing further confirmed pressure discontinuity between the wells as well as compartmentalization within each well suggesting stratigraphic compartmentalization. Initial volume estimates were based on fault compartmentalization but given the stratigraphic compartmentalization, the derived volume may not be accurate due to lateral net-to-gross changes. Therefore, a study was conducted to accurately define the structural and stratigraphic complexity and thereby accurately define the hydrocarbon in place and the remaining potential in the field. In order to define the range of hydrocarbons in place, a multidisciplinary study consisting of seismic interpretation, detailed stratigraphic correlation, biostratigraphy, geological conceptual modeling and pressure analysis was completed. The seismic re-interpretation confirmed the presence of a paleo high and faults with enough throw to offset the productive sand intervals thus dividing the field into distinct fault compartments. Detailed stratigraphic correlation of the wells and biostratigraphy indicate a terrestrial fluvial system. Using this information, a conceptual model was created to understand the potential sand distribution in the field. Incorporating these models with the pressure and production data made it possible to generate improved volume calculations and determine the remaining potential in the field. Structural and stratigraphic compartmentalization can be very difficult to quantify and therefore can significantly impact the estimation of the hydrocarbon in-place. Utilizing an integrated study, the hydrocarbon in place and the remaining potential in Teluk Rendah Field was more accurately characterized.