Full Field Development With Open Hole Concept at SUDP-A

摘要

Sumandak Area Integrated Field Development Project comprises of 2 phases, which includes Sumandak Main, Sumandak Tengah, Sumandak Selatan, Sumandak Tepi and Sumandak Ujong. Sumandak Main field development is considered as Phase 1 of the total Sumandak Area development. Figure A-1 shows the location of Sumandak Field Development area within Samarang - Asam Paya blocks in Sarawak region, east of Malaysia. A 28 slots four-legged platform, Sumandak-A (SUDP-A) platform was successfully installed at location on October 2006. SUDP-A field development project has opted for open hole completion for all of the 21 wells. This completion system was deployed to 14 oil producers (OP), 2 water injectors (WI) , 1 gas well and 4 combination wells of OP and WI. With the advancement of technology, the drilling team decided to use open hole completion with wire wrapped screen (WWS) for sand control and swell packer for zonal isolation. With this type of sand control and completion, operation such as running and cementing production casing, scraper run and perforation can be eliminated. In addition, significant rig time savings due to simple rig operations and direct tool cost savings make this technology viable and attractive. Open hole completion has its own risks and challenges that require detail consideration beforehand and with sheer determination, the project team has managed to calculate the risks and came up with proper solution and recommendation. Full field development with open hole concept in Sumandak Main development Project is considered another milestone achievement by Petronas Carigali Sdn Bhd (PCSB). This paper precisely discusses all the strategies and steps taken to ensure that this concept can be successfully carried out by the project team, and also lessons leamt throughout the operation at SUDP-A platform.