| Title | First Successful Live Well Cleanout Using Coiled Tubing Hammer Technology in the Philippine Geothermal Industry |
|---|---|
| Authors | Ray Romey |
| Year | 2026 |
| Conference | World Geothermal Congress |
| Keywords | Coiled Tubing Hammer, Live Well Cleanout, Scale Cleanout |
| Abstract | Energy Development Corporation (EDC) has implemented alternative intervention strategies, including chemical treatment, coiled tubing (CT) cleanouts, and scale inhibition systems. Seeking a faster, safer, and more cost-effective approach, EDC successfully partnered with NZ companies, Western Energy and General Compression to execute the Philippines’ first Live Well Cleanout (LWC) using their CT Hammer Technology. Unlike traditional rig-based workovers, LWC avoids well quenching, which is a procedure that imposes thermal stresses on well casings and carries a risk of permanent well loss. The live intervention was executed while maintaining sufficient discharge parameters, ensuring sufficient lifting capability, and preserving casing integrity. CT Hammer Technology uses nitrogen to drive scale removal and assist lifting of cuttings, while its hammer bit design allows debris passage and minimizes casing damage. The project’s success was enabled by our collaborative approach with our partners for meticulous planning, specialized downhole tools, real-time data monitoring, and a highly skilled team. Key lessons were learned regarding operational limits, tool optimization, and fluid compatibility, which continue to inform ongoing improvements. This paper documents the Philippines’ first Live Well Cleanout (LWC) using CT Hammer Technology and defines when and how to choose LWC over rig-based workovers. It covers selection and planning criteria; actual execution execution validations; observed operating limits and critical pivots and hold points; and post-job results on effectiveness, risk, cost, and lost production. We conclude with a practical decision and operating framework for replicating LWC across Philippine fields. |