30 Years of Tongonan-1 (Leyte, Philippines) Sustained Production

Abstract

Tongonan-1 in Leyte, Philippines has achieved a milestone for sustainable production for 30 years. Reservoir management played a key role in the continuous power generation and in conquering the challenges since the commissioning of the Tongonan-1 power plant in 1983. The series of challenges in its 30-year history have been a source of lessons and the reason for the sound production and injection strategies that have been implemented. Cooler injection returns, blockages, erosion and pressure drawdown are among the challenges that have been met squarely by the early and present resource managers. Technological knowledge and developments in field management, geochemistry and reservoir engineering were crucial in analyzing and addressing these challenges. Likewise, experiences in targeting M&R wells proved to be significant in achieving the sustained production.