Well Accessibility Using Electricline Cleaner and Miller: Success Story of PK-Jx at Offshore Field Pertamina Hulu Mahakam

Abstract

Mandatory step in preliminary well intervention is to check the accessibility to target depth. Occasionally restriction founded and well can’t be accessed to target depth. Coiled tubing operation needed to get well accessibility by eliminating sediment. PT. Pertamina Hulu Mahakam developing offshore ultra minimalist platform where coiled tubing operations can’t be performed. Hence, sediment elimination method with Electricline Cleaner and Miller unit which fit with offshore minimalist platform concept feasible to be performed in Mahakam Area. PK-Jx is one of Mahakam Minimalist Platform which facing restriction on intervention. Electricline is deployed to clean and mill services which had been provided by conveying a specially designed tool. To keep production optimized, periodic interventions should be performed to remove the sediment. Based on performance, during intervention should be combine the cleaner and miller to get the effective clean out. The sediment will be trap on the bailer above the cleaner or miller tools. This system is simple, cost-effective, safe and easy to handle. Electricline Cleaner and Miller can open well accessibility from 2030-2062 mBRT (28m) with high success ratio and get 100% well accessibility for next intervention. This method has proven having lower operation cost compare with conventional method. The method eliminates mobilization and demobilization from coil tubing operation which is equals to 4 days saving in operation cost with total cost reduction up to USD430,000 per job. This job efficiency is not affecting safety aspect proven with zero accident, and then reducing risk form High Risk to Low Risk due to the elimination of heavy lifting (especially during bad weather) and chemical usage. With success story of PK-Jx, we would like to share this method will be a part of solution with future development of offshore minimalist platform which heavy equipment for sediment cleaning and milling is not feasible.