ANALISA INJEKSI AIR PADA LAPISAN N-73 MENGGUNAKAN SIMULATOR IPM-MBAL DI LAPANGAN “AK”

I ILHAM, ASHABUL KAHF (2023) ANALISA INJEKSI AIR PADA LAPISAN N-73 MENGGUNAKAN SIMULATOR IPM-MBAL DI LAPANGAN “AK”. Other thesis, UPN "Veteran" Yogyajarta.

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Abstract

vi
RINGKASAN
ANALISA INJEKSI AIR PADA LAPISAN N-73
MENGGUNAKAN SIMULATOR IPM-MBAL DI LAPANGAN
“AK”
Oleh
Ashabul Kahfi Ilham
NIM: 113190025
(Program Studi Sarjana Teknik Perminyakan)
Lapisan N-73 Lapangan “AK” mulai berproduksi pada tahun 1998. Berdasarkan
data PVT pada lapisan tersebut dalam kondisi undersaturated dan memiliki nilai
water cut yang sangat tinggi sebesar 99,4% pada april 2019. Seiring kegiatan
produksi beberapa sumur produksi mengalami shut in dan terdapat 2 sumur
injeksi yang mengalami problem out of zone injection yakni K-8 dan K-10.
Berdasarkan hal tersebut dilakukan analisa performance injeksi untuk mengetahui
penyebab problem tersebut terjadi.
Metode yang digunakan dalam penelitian ini yakni kuantitatif dan kualitatif
dengan menggunakan simulator IPM-MBAL. Pada analisa kuantitatif terlebih
dahulu dilakukan analisa terhadap sumur injeksi menggunakan metode hall plot
serta analisa sumur produksi menggunakan chan’s plot. Pada analisa kualitatif
dimulai dengan melakukan PVT match. Setelah PVT match dan penginputan data
model tank selesai. Selanjutnya, dilakukan penyelarasan data tekanan dengan
simulator (analytical method). Dilakukan regresi terhadap model water influx
agar history tekanan dan simulator match. Setelah itu, dilakukan analisa berupa
simulation result dan energy plot.
Hasil simulation result berupa analisa performance injeksi terhadap pressure
disimpulkan bahwa injeksi yang dilakukan pada lapisan N-73 berpengaruh pada
kenaikan pressure dan kurang efisien terhadap kenaikan oil rate akibat sebagian
air keluar dari zona injeksi karena rate yang terlalu besar berdasarkan analisa hall
plot. Pada analisa performance injeksi terhadap saturasi air bahwa adanya
kenaikan saturasi air akibat problem produksi yakni channeling dan bottom
coning berdasarkan analisa chan’s diagnostic sehingga air lebih awal terproduksi
dan peningkatan air menjadi lebih cepat. Pada analisa energy plot, bahwa energy
yang bekerja berupa kombinasi antara fluid expansion, water influx, dan injeksi
air yang berpengaruh pada tekanan.
Kata kunci: injeksi air, IPM-MBAL, hall Plot, chan’s plot,
vii
ABSTRACT
ANALYSIS OF WATER INJECTION IN N-73 LAYER USING
IPM-MBAL SIMULATOR AT “AK” FIELD
By
Ashabul Kahfi Ilham
NIM: 113190025
(Petroleum Engineering Undergraduated Program)
Layer N-73 Field "AK" began production in 1998. Based on PVP data, the layer
is undersaturated and has a very high water cut value of 99.4% in April 2019.
Along with production activities, several production wells have been shut in and
there are 2 injection wells that experience problems out of zone injection, namely
K-8 and K-10. Based on this, an injection performance analysis is carried out to
determine the cause of the problem.
The methods used in this study are quantitative and qualitative using the IPM-
MBAL simulator. In quantitative analysis, analysis of injection wells using the
hall plot method and production well analysis using chan's plot was carried out.
Qualitative analysis begins with PVP match. After PVT match and tank model
data input is complete. Furthermore, pressure data alignment with simulators
(analytical method) is carried out. Regression was carried out on the water influx
model so that the pressure history and simulator match. After that, analysis was
carried out in the form of simulation results and energy plots.
The results of the simulation results in the form of injection performance analysis
of pressure concluded that the injection carried out in the N-73 layer had an effect
on increasing pressure and was less efficient for the increase in oil rate due to
some water coming out of the injection zone because the rate was too large based
on hall plot analysis. In the analysis of injection performance on water saturation
that there is an increase in water saturation due to production problems, namely
channeling and bottom coning based on chan's diagnostic analysis so that water
is produced earlier and the increase in water becomes faster. In the energy plot
analysis, that the energy that works is a combination of fluid expansion, water
influx, and water injection which affects pressure.
Keywords: water injection, IPM-MBAL, hall Plot, chan’s diagnostic

Item Type:	Thesis (Other)
Uncontrolled Keywords:	water injection, IPM-MBAL, hall Plot, chan’s diagnostic
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Eko Yuli
Date Deposited:	22 Sep 2023 02:24
Last Modified:	22 Sep 2023 02:24
URI:	http://eprints.upnyk.ac.id/id/eprint/37630

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