Publications

Geophysical observation using the resistivity method is considered one of the more effective geophysical techniques for detecting the existence of rock layers having porosity and containing fluid. The experiment of the method was conducted in the Lubuk Linggau area of South Sumatra, that is, a border area of the South Sumatra basin. To be able to ascertain the possibility of a hydrocarbon reservoir in a subsurface geological structure, it is necessary to implement the resistivity method, based on the Schlumberger configuration. Field data obtained through processing and interpreting stages allow for construction of a map of the resistivity section showing rock layers, rock types and depth as well as any reservoir rock layer presence. Based on the resistivity prediction, correlated to the geological formation in the experiment area, it reveals that a reservoir rock layer in the area is present on the fifth layer at 20 - 223 meters in depth as a sand rock layer serving as reservoir rocks, and these reservoir rocks are located between clay rocks as cap rocks. The hydrocarbon trap is located in the wedging structure of sandstone under sounding point P-6 and in anticline structure under sounding point P-17.