PERENCANAAN OPTIMASI PRODUKSI MINYAK DENGAN REAKTIVASI IDLE WELL PADA LAPANGAN “SVR”

ANDICA, REYHAN SAVERO PUTRA (2025) PERENCANAAN OPTIMASI PRODUKSI MINYAK DENGAN REAKTIVASI IDLE WELL PADA LAPANGAN “SVR”. Skripsi thesis, UPN Veteran Yogyakarta.

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Abstract

RINGKASAN
PERENCANAAN OPTIMASI PRODUKSI MINYAK DENGAN
REAKTIVASI IDLE WELL PADA LAPANGAN “SVR”
Oleh
Reyhan Savero Putra Andica
NIM: 113210016
(Program Studi Sarjana Teknik Perminyakan)
Lapangan “SVR” merupakan salah satu lapangan minyak tua yang terletak di
Cekungan Sumatera Selatan. Struktur “RR" merupakan salah satu struktur tua yang
mulai berproduksi tahun 1966 dan pada Lapisan G2 tersimpan cadangan inplace
sebesar 10,10 MMSTB. Pada akhir tahun 2023 tingkat water cut struktur “RR”
mencapai 92,2% dengan recovery factor 47,29%. Dengan kondisi high water cut
dan sisa cadangan yang diperkirakan besar maka dilakukan perencanaan optimasi
produksi dengan reaktivasi Idle Well.
Struktur “RR” memiliki dominasi sumur dengan water cut tinggi dan akan
dilakukan optimasi produksi dengan reaktivasi sumur. Skenario reopening tidak
dipilih karena produksi minyak sudah sangat kecil sehingga dilakukan reaktivasi
dengan skenario pindah lapisan. Dimulai dengan screening sumur water cut tinggi
(>90%). Kumulatif produksi (Np) tidak melebihi cut off lapisan, dan recovery factor
(RF) sumuran yang lebih kecil dibandingkan dengan recovery factor hasil data
SCAL. Kandidat sumur yang memenuhi akan dikorelasikan dengan sumur referensi
dengan posisi sumur reaktivasi yang lebih updip. Analisa problem produksi
penyebab high water cut dengan metode Chan’s Diagnostic Plot dan analisa cement
bond log (CBL). Dilakukan analisa carbon oxygen (C/O) log untuk penentuan
reperforasi, analisa decline (DCA) metode Trial-Error and X2 Chi-Square Test
dilanjutkan forecast untuk memperkirakan oil gain dan lifetime. Analisa inflow
performance rate (IPR) metode Vogel dilanjutkan vertical lift performance (VLP)
untuk mengetahui kemampuan sumur mengalir ke permukaan. Pertimbangan
artificial lift melalui screening kriteria. Diakhiri dengan analisa keekonomian.
Screening dari 12 sumur idle pada struktur “RR” pada Lapisan G2 diperoleh 4
sumur kandidat reaktivasi. Perencanaan reaktivasi sumur memperoleh total oil gain
sebesar 340,1 Mbbl dengan perkiraan lifetime 11 tahun. Perencanaan mampu
meningkatkan RF dari 47,29% menjadi 50,66%. Analisa keekonomian
menghasilkan NPV sebesar 2.184,50 MUSD, dengan ROR sebesar 158,91%, dan
POT sebesar 1,3 tahun sehingga proyek ini layak untuk dikembangkan.
.
Kata kunci: high water cut, sumur idle, reaktivasi sumur, carbon oxygen (c/o)
log, lapangan minyak tua.
vi
ABSTRACT
OIL PRODUCTION OPTIMIZATION PLANNING WITH IDLE
WELL REACTIVATION IN THE “SVR” FIELD
By
Reyhan Savero Putra Andica
NIM: 113210016
(Petroleum Engineering Undergraduated Program)
“SVR” field is one of old oil fields located in South Sumatra Basin. “RR” structure
is one of old structures that started production in 1966, with G2 Layer containing
inplace reserves of 10.10 MMSTB. At the end of 2023, water cut of “RR” structure
reached 92.2% with recovery factor of 47.29%. Due to high water cut condition
and significant remaining reserves, production optimization plan through Idle Well
reactivation was carried out.
“RR” structure is dominated by wells with high water cut, and production
optimization is planned by well reactivation. Reopening scenario was not chosen
because oil production was very low; therefore, reactivation with layer shift
scenario was implemented. It started with screening wells having water cut above
90%, cumulative production (Np) below layer cut off, and recovery factor (RF)
lower than SCAL data results. Selected candidate wells were correlated with
reference wells positioned updip from reactivation wells. Production problems
causing high water cut were analyzed using Chan’s Diagnostic Plot and cement
bond log (CBL). Carbon oxygen (C/O) log analysis was performed for
reperforation determination. Decline curve analysis (DCA) using Trial-Error and
Chi-Square (X2) test was conducted followed by forecast to estimate oil gain and
lifetime. Inflow performance relationship (IPR) was analyzed using Vogel method
and vertical lift performance (VLP) to assess well flow capacity to surface.
Artificial lift options were considered through screening criteria. Economic
analysis was conducted to conclude feasibility.
Screening of 12 idle wells in “RR” structure at G2 layer identified 4 candidate
wells for reactivation. Reactivation plan is expected to yield total oil gain of 340.1
Mbbl with estimated lifetime of 11 years. Plan can increase recovery factor from
47.29% to 50.66%. Economic analysis showed net present value (NPV) of 2,184.50
MUSD, rate of return (ROR) of 158.91%, and pay-out time (POT) of 1.3 years,
indicating project feasibility for development.
Keywords: high water cut, idle well, reactivation well, carbon oxygen (c/o) log,
mature oil field
vii

Item Type:	Tugas Akhir (Skripsi)
Uncontrolled Keywords:	high water cut, idle well, reactivation well, carbon oxygen (c/o) log, mature oil field
Subjek:	T Technology > T Technology (General)
Divisions:	Fakultas Teknologi Mineral dan Energi > (S1) Teknik Perminyakan
Depositing User:	Eko Yuli
Date Deposited:	10 Sep 2025 06:42
Last Modified:	10 Sep 2025 06:42
URI:	http://eprints.upnyk.ac.id/id/eprint/43646

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