Achieving Top Performance Installation of Conductor Pipe Partition Separation System in Offshore Mahakam: Beyond the Learning Curve

Abstract

Conductor Pipe Partition System (CPPS) is a system that allow drilling 2 wells from one conductor pipe. This system could bring noteworthy advantages for the development of oil and gas field by decreasing the size and/or number of platforms and to offer additional reserves access from current platform. CPPS have been utilized in Offshore Mahakam since 2005. 10 years of installation from 2005 – 2015 experience a lot of operation problem during installation due to various factor.

This paper describes trouble-free technique and procedures for conductor pipe partition system installation. Misalignment, twisting CPPS, turning pipe are common problem during installation. Failed troubleshoot might result in loss of new slot for 2 wells. Conductor pipe shall be cleaned out properly to ensure smooth wall at inner part of conductor pipe with proper mud inside. Running procedure of conductor pipe partition system development involves preparation in warehouse, high competence personnel on board and also procedures in place to solve the problem when obstruction during running occurred.

Since 2018 until 2022, CPPS are installed on 10 slots and 20 wells have been successfully drilled and completed. Procedure development resulted efficient learning curve from 5 days installation into 2 days installation. As a consequence, 6 million dollars of cost-saving are achieved comparing to previous procedure. With current CPPS performance, future offshore Mahakam platform will utilize CPPS in order to optimize number of slot and well can be drilled from the platform.