One Phase Well Design For Minimum Drilling Cost At Zaz Field
Keywords:
three-phase well, one-phase well, drilling cost, casing costAbstract
Drilling cost components, such as rig costs, casing and accessories, well surface equipment, mud, bits, cementing, and casing installation, significantly influence the overall cost of well drilling. This study explores a One Phase Well (OPW) design by eliminating the surface casing, which is typically included in the casing design for wells in the ZAZ Field. The analysis involves evaluating drilling data, including well data, well profiles, pore pressure fracture gradients, drilling time, material costs, and overall drilling expenses. A comparison between the Three Phase Well (TPW) and One Phase Well (OPW) designs was conducted to determine the cost differences.The OPW method reduces rig rental costs by 34.9%, bit costs by 53.9%, casing costs by 20.5%, wellhead costs by 8.7%, and mud costs by 3.7%. However, cementing costs increased by 0.7%, and casing installation costs rose by $24,017 USD. The total cost difference between OPW and TPW amounted to $68,633 USD, with OPW achieving a 12.7% reduction in total drilling costs compared to TPW.
References
Bahari, A., & Seyed, B. (2007). Drilling Cost Optimization in Iranian Khangiran Gas Field (SPE Paper No. 108246). Mexico.
El Bakly, O., Ali, K. & El Dawey. (2007). Optimized drilling cost per foot in KPC versus the increase of drilling tangible and intangible costs (Case study) (SPE/IADC Paper No. 108298). Egypt.
Emanuella W. Y. P., Panca Wahyudi, & Risnawati. (2010). Penelitian Desain Lumpur untuk Mengatasi Terjadinya Pengendapan oleh Material Lumpur maupun Formasi akibat Pengaruh Temperatur Tinggi dan Kontaminan Fluida. Lembaran Publikasi Minyak dan Gas Bumi, 44 (2), 171-184.
Halal, A. S., Warling, D. J. & R. R. Wagner. (1996). Minimum Cost Casing Design (SPE Paper No. 36448). Colorado.
Handoko, A. I., Bimastianto, P., Maulana, M. D., Agriawan, C., Brahmantio, R. A., Abidiy, I. & Setiawan, T. (2017). Shallow Light Architecture: A Viable and Cost-Effective Solution for Marginal Reserves in Tunu Shallow Development (SPE-186936-MS). Jakarta.
Hanif, I., Sayogyo, B., Riko, R., Hadistira, P., & Sari, K. (2021). One Phase Well (OPW): Unlock shallow reservoir efficiently and economically by eliminating surface casing (SPE Paper No. 205612-MS). PT Pertamina Mahakam.
Julikah, Sriwidjaya, Jonathan S., & Panuju. (2015). Hydrocarbon shale potential in Talang Akar and Lahat formations in the South and Central Palembang Basin. Scientific Contribution Oil and Gas, 38(3), 4–5.
Julikah, Ginanjar Rahmat, Wicaksono, A. B., & Anwari, J. (2020). Shale plays characterization of the Talang Akar Formation in the Jambi Sub-Basin, South Sumatra Basin. Scientific Contribution Oil and Gas, 43(3), 99–114.
Oumer, S., Taufiqurrachman, H., Perruchot, M. & Yunus, F., 2010, Well Design Specificities for Shallow Gas Production of Tunu Field, IADC/SPE 134957, Ho Chi Minh, Vietnam.
Oumer, S., Widiwibowo, F., Yunus, F., & Choux, J.-C. (2012). Indonesia “Tunu 18 Days” project case history: Innovations and new technologies bringing well construction performance to unthinkable levels (IPTC Paper No. 14808). Bangkok.
Sayogyo, B., Hermawan, A., & Andoni, B. (2022). Delivering a one-phase well in under two days with a one-inch cutter PDC drill bit: A record-breaking performance in a mature field, drilling optimization case history (OTC Paper No. 31638-MS). Kuala Lumpur.
Wibowo, A. S., Ulpah, N., Ariel, G., Ismail, T., & Sobirin, M. (2022). Industrialization One Phase Well Perforation in Marginal Shallow Reservoir while Maintaining Proper Well Integrity Aspect: Successful Milestone in Tunu Field, Delta Mahakam, East Kalimantan., IATMI, Yogyakarta.
Wojtanowicz, A. K., State, L., Eric, U., & Maidla, E. (1987). Minimum-cost casing design for vertical and directional wells. Journal of Petroleum Technology, SPE Paper No. 17107.
Shahin, M. (2018). Casing drilling resulted in slimmer hole design and significant cost savings in the WON Field in Egypt (SPE Paper No. 192608-MS).
Rahanjani, Y. E., & Nughraha, B. (2020). Real-time data transmission and visualization as a powerful technology to reduce non-productive time during drilling operations: Present-day capabilities, limitations, and future development. Scientific Contribution Oil and Gas, 43(3), 135–142.
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors are free to Share — copy and redistribute the material in any medium or format for any purpose, even commercially Adapt — remix, transform, and build upon the material for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms, under the following terms Attribution — You must give appropriate credit , provide a link to the license, and indicate if changes were made . You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
