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Lapangan CEROS merupakan bagian dari Blok Sanga Sanga cekungan Kutai.
Lapangan ini pertama kali ditemukan pada tahun 1972, lapangan ini termasuk ke dalam
Formasi Mentawir yang memiliki variasi litologi antara lain batupasir, batulempung serta
adanya beberapa lapisan batubara. Formasi mentawir masuk dalam satuan lingkungan
pengendapan delta yang didominasi oleh proses fluvial atau juga delta dengan pola
prograding yaitu delta yang mempunyai suplai sedimen yang banyak dan penurunan
cekungan yang lambat.
Sumur MB 2640 adalah salah satu sumur tua yang berada pada lapangan RHINO. Sumur
MB 2640 sendiri mempunyai Multiple komplesi dengan 2 zona produksi, upper dan lower.
Sumur MB 2640 telah memproduksikan fluida Gas sejak tanggal 6 Februari 2018 yang
diperforasi pada kedalaman 7739 ft dengan ketebalan perforasi 23 ft.
Dalam penelitian ini saya melakukan perhitungan menggunakan Metode IPR dengan
persamaan Fetkovich untuk mendapatkan hasil perhitungan Laju alir Maximum pada Sumur
MB 2640. Dari hasil perhitungan menggunakan Metode Fetkovich dengan Asumsi Pwf dari
626 Psig sampai 0 Psig dan didapatkan Hasil Laju alir Maximum sebesar 19.4171
MMscf/day.

CEROS Field is part of the blok Sanga Sanga Kutai basin. This field was
first discovered 1972. This field is included in the Mentawir Formation which has
a variety of lithologies including sandstone, claystone and the presence of several
layers of coal. The Mentawir formation is in the delta depositional environment
unit which is dominated by the fluvial process or also the progressading delta
pattern, which is the delta which has a large sediment supply and a slow decline
in the basin.
The MB 2640 well is an old well located in the RHINO field. Well MB 2640
itself has multiple complexes with 2 production zones, upper and lower. The MB
2640 well has produced hydrocarbon fluids since February 6, 2018 which was
perforated at a depth of 7739 ft with a perforation thickness of 23 ft.
he MB 2640 well is an old well located in the RHINO field. The MB 2640 well
itself has multiple complexes with 2 production zones, upper and lower. The MB
2640 well has produced a Gas fluid since February 6, 2018 which was perforated
at a depth of 7739 ft with a perforation thickness of 23 ft.
To find out the Production Flow Rate at MB 2640 well it is necessary to
calculate and I use the IPR calculation method namely Fetkovich. From the
calculation results, using the Fetkovich Method with Assumptions of Pwf from 626
Psig to 0 Psig and the Maximum Flow Rate is 19,4171 MMscf / day.