ANALYTICAL HIERARCHY PROCESS TO DETERMINE THE BEST WORKOVER JOB FOR MAINTAINING GAS PRODUCTION IN THE KAPUKAT FIELD

• Main Author: Nuryansyah, Andrei
• Format: Theses
• Language: Indonesia
• Subjects: Manajemen umum
• Online Access: https://digilib.itb.ac.id/gdl/view/70709
• Institution: Institut Teknologi Bandung

Kapukat Field is a gas producing field owned by PT Minyak Jawa Indonesia (PT MJI) which already has a gas sale and purchase cooperation with PT Powerful Energy Indonesia (PT PEI) with an expected average production target of 2.8 MMSCFD. The only gas-producing well in the field, namely the KPK-2 Well, experienced a decline in production and finally stopped production due to mechanical problems. Focus Group Discussions have been held to identify problems, find the best solution to revive the KPK-2 well so that it can return to production according to the targets set in the agreed Gas Sale and Purchase Agreement (PJBG). Problem analysis using the Kepner-Tregoe method has been carried out and discussed in a group discussion focus involving Subject Matter Experts (SMEs) consisting of cross-functions, where there are three main causes of problems that occur in the Kapukat field such as, the absence of a workover or well service program planned in 2022, the occurrence of natural reservoir decline and massive organizational changes in mid-2021 indirectly affecting operational and field development plans due to poor handover. In mid-2022, an initiation has been carried out to carry out workover work on the KPK-2 well which aims to revive gas production from the well. From the results of the discussion, three workover scenarios emerged. The Analytical Hierarchy Process (AHP) method is used to help choose the best scenario from the three workover work options to be carried out on the KPK-2 well. The assessment criteria for each scenario include aspects of Cost, Profit, Timeline, Operational and Safety. Based on the results of the analysis using the AHP method, it was stated that the second scenario was the best option with a point achievement of 57.8%. Where in this scenario the proposed workover work is to produce Gas from both new and existing potential layers simultaneously.