Outperforming the High-Performance Drilling in Mahakam Delta: Enhanced Parameter and Fast Connection Practice Application in 8-1/2” Section Drilling Operation

Abstract

Performance has always been the heart of Mahakam Delta drilling operation, particularly on Tunu Main Zone (TMZ) development. The struggle to maintain an economic value on the marginal reserves leads to the never-ending discovery of continuous improvement initiatives that successfully reduce the overall well duration and maintain sustainability of the project. Currently the 8-1/2” section drilling performance has reached plateau for almost 5 years and the Operator is challenged to create a step
change. The initial TMZ performance benchmark is to drill 1400m within 24 hours. The PHM record was kept unbroken.

One improvement called “Enhanced Parameter and Fast Connection” has finally overcome this plateau. As the name suggests, the core of Enhanced Parameter and Fast Connection lies on the application of higher standard in drilling parameter as well as the reduction in connection time. Proper hydraulic design of an aggressive bit makes the application become more effective. On top of that, the most importance factor is a teamwork.

The Enhanced Parameter and Fast Connection Practice have created a new record in 8-1/2” TMZ with the current record sitting at 2303 m drilled in 24 hours. A new on-bottom and average Rate of Penetration (ROP) record was also achieved, and allowing a savings of 1.7 rig days compared to average performance.