Publications

Handil is a mature oil and gas field located in the Mahakam Delta. Recent developments at the southern peripheral of Handil are part of a strategy to unlock its potential and open new areas within the Mahakam PSC. The early stages of the Handil South development have contributed to an increase in Handil's gas production. Handil South geomodel is built to understand the geology, reservoir distribution, and hydrocarbon volume, providing the foundation for further development in the region.

The Handil South geomodel includes a comprehensive geological synthesis and a robust full-field 3D geomodel. The geological synthesis was conducted using a nose structure concept to interpret the depositional fairway, hydrocarbon accumulation, and initial fluid contact. The results of the synthesis show that hydrocarbon accumulation at Handil South is trapped stratigraphically, with an East-West channel direction. Reservoir pressure at Handil South remains hydrostatic, despite massive production from the Handil Crestal and Sapi field, indicating that the accumulation in Handil South is a separate pool from Handil Crestal and Sapi.

The Geomodel was built using six horizons from 3D seismic data, covering the Handil and Sapi areas as the foundational framework. Facies and rock properties derived from well data were then upscaled and modeled into the 3D geomodel grid. The model represents 82 hydrocarbon regions from 45 stratigraphic layers, spanning from the Main Zone to the Deep Zone of Handil. The final results include the initial hydrocarbon pools and volumetrics for the Handil South area. Future well candidates in Handil South are proposed based on stacking net pay and respecting spacing to surrounding wells, to sustain production growth.