Structures Defined by Magnetotellurics (MT) at the Southern Negros Geothermal Production Field, Central Philippines

Abstract

A magnetotelluric (MT) survey was conducted at Southern Negros Geothermal Production Field (SNGPF) to delineate structures or faults. These faults could be drilling targets for the reinjection wells, which will be utilized for the 20 MWe optimization project at Palinpinon 2 sector. Thirteen faults were delineated, ten of which have been correlated with mapped faults in the areas. The remaining three were unmapped. Possible reinjection targets for Nasuji include: Lagnasan Splay A, Lagunao and Malaunay Faults. For the East Ticala sector, the Odlumon B Fault can be utilized.