Cahya, Septian Dwi (2020) PEMILIHAN MODE OPERASI PRODUKSI SEBAGAI PENGEMBANGAN SUMUR GAS SP DI ANJUNGAN LEPAS PANTAI B FLOWSTATION MENGGUNAKAN METODE ANALYTICAL HIERARCHY PROCESS. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini difokuskan pada analisa pengembangan produksi sumur SP di anjungan lepas pantai B flowstation. Pengembangan ini meliputi pembangunan platform, piping, dan fasilitas produksi. Pembangunan tersebut didasarkan pada desain mode operasi produksi sumur gas SP ke sistem produksi existing B flowstation. Pada proyek pengembangan sumur baru sebelumnya hanya ditentukan desain tunggal mode operasi produksi. Ketika sumur baru tersebut sudah beroperasi ternyata terdapat banyak permasalahan, seperti premature produksi akibat terjadi water coning dan sering terjadi shutdown produksi yang berakibat pada loss produksi. Untuk mengupayakan permasalahan tersebut agar tidak terjadi lagi, perusahaan harus melakukan proyek baru untuk merubah desain mode operasi sumur baru tersebut. Proyek yang pernah dilakukan tersebut tidak efektif. Pada proyek pengembangan yang sekarang yaitu pengembangan produksi sumur SP dilakukan kajian terhadap proses existing untuk memunculkan desain mode operasi produksi yang dapat di integrasikan dengan proses existing. Supaya gas dari sumur SP dengan kapasitas 53.5 BCF dan laju produksi gas sebesar 30 MMSCFD dapat dialirkan secara kontinyu tanpa mengalami loss produksi. Melalui focus group discussion terhadap proses existing didapatkan 4 desain alternatif mode operasi produksi sumur SP yaitu : mode operasi low pressure; mode operasi medium pressure; mode operasi high pressure; dan mode operasi high low pressure. Untuk memilih mode operasi produksi yang akan diterapkan pada pengembangan sumur SP digunakanlah metode AHP (Analytic Hierarchy Process) dengan kriteria: teknologi; biaya kapital; potensi loss produksi; biaya operasional; reservoar dan pengerjaan. Hasil dari AHP didapatkan alternatif terpilih yaitu mode operasi high low pressure dengan nilai sebesar 32.7% dengan biaya investasi yang besar. Selanjutnya dihitung nilai NPV dan IRR untuk mengukur keekonomian desain mode operasi produksi high low pressure dapat diterapkan atau tidak. Hasilnya nilai NPV > 0, IRR = 31.604 %, diatas discount rate yang berarti desain mode operasi produksi high low pressure meskipun biaya investasinya tinggi dapat diterapkan pada pengembangan produksi sumur SP.
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This research is focused on analyzing the development of SP well production in the flowstation offshore platform B. This development includes the construction of platforms, piping, and production facilities. The development is based on the design of the SP gas well production operation mode to the existing B flowstation production system. In the new well development project previously only a single design mode of production operation was determined. When the new well is operational there are many problems, such as premature production due to water coning and frequent production shutdowns that result in production losses. To work on the problem so that it does not happen again, the company must undertake a new project to change the design of the new well's operation mode. The project that was carried out was not effective. In the current development project, which is the development of SP well production, a study of the existing process is carried out to bring up the design of production operation modes that can be integrated with existing processes. So that gas from SP wells with a capacity of 53.5 BCF and a gas production rate of 30 MMSCFD can be flowed continuously without experiencing production loss. Through focus group discussions on the existing process, there were 4 alternative designs of the SP well production operation modes, namely: low pressure operating mode; medium pressure operating mode; high pressure operating mode; and high low pressure operating mode. To choose the mode of production operation that will be applied to the development of SP wells, the AHP (Analytic Hierarchy Process) method is used with the following criteria: technology; capital costs; potential loss of production; operating costs; reservoir and workmanship. The results from AHP obtained the chosen alternative, namely the high low pressure operating mode with a value of 32.7% with a large investment cost. The NPV and IRR values are then calculated to measure the economics of the high-pressure production operation mode design, whether or not it can be applied. The result is NPV value> 0, IRR = 31.604%, above the discount rate which means that the design mode of production operation is high low pressure even though high investment costs can be applied to the development of SP well production.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | mode operasi, discount rate, high low pressure ================================================================================================================== operating mode, discount rate, high low pressure |
| Subjects: | T Technology > T Technology (General) > T56.8 Project Management T Technology > T Technology (General) > T58.62 Decision support systems T Technology > TS Manufactures > TS176 Manufacturing engineering. Process engineering (Including manufacturing planning, production planning) |
| Divisions: | 61101-Magister Management Technology |
| Depositing User: | SEPTIAN DWI CAHYA |
| Date Deposited: | 13 Aug 2020 02:20 |
| Last Modified: | 05 Jun 2023 07:30 |
| URI: | http://repository.its.ac.id/id/eprint/77699 |
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