EVALUASI PRODUKSI AIR TINGGI PADA SUMUR HFN-18 LAPANGAN “VAAL”

NURRAKHMAN, HALFI FALIQ (2024) EVALUASI PRODUKSI AIR TINGGI PADA SUMUR HFN-18 LAPANGAN “VAAL”. Other thesis, UPN Veteran Yogyajarta.

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Abstract

vi
RINGKASAN
EVALUASI PRODUKSI AIR TINGGI PADA SUMUR HFN-18
LAPANGAN “VAAL”
Oleh
Halfi Faliq Nurrakhman
NIM: 113190055
(Program Studi Sarjana Teknik Perminyakan)
Sumur HFN-18 merupakan sumur yang berproduksi di Lapangan “VAAL” PT
Pertamina EP Cepu dengan nilai water cut yang tinggi sebesar 90,92% dari laju alir
total sebesar 2160,2 BPD. Produksi air tinggi diperkirakan terdapat masalah
sehingga perlu dievaluasi. Dalam skripsi ini evaluasi dilakukan perhitungan ulang
produkstiuvitas formasi yang terdiri dari pembuatan kurva IPR dengan metode
Wiggins. Selanjutnya menentukan kurva TIP dengan menggunakan software
Pipesim, serta evaluasi terhadap pressure drop akibat perforasi dengan
menggunakan persamaan Jones, Blount dan Glaze. Selanjutnya dilakukan evaluasi
Chan Diagnostic serta laju produksi kritis water coning dengan menggunakan
metode Chierici-Ciucci dan interval perforasi optimum dengan menggunakan
metode Sobocinski-cornelius dan metode Bournazel-Jeanson.
Evaluasi IPR dan TIP menggunakan metode Wiggins menunjukkan Sumur HFN-
18 beroperasi pada laju alir 2160,2 BPD dan tekanan 2347,7 psi. Evaluasi pressure
drop akibat perforasi dengan metode Jones, Blount, dan Glaze menghasilkan
optimum point pada ΔP 158,25 psia dengan densitas perforasi 6 SPF. Hasil Chan
Diagnostic menunjukkan water coning pada Sumur HFN-18 dengan nilai slope
WOR’ yang negatif. Water coning terjadi pada laju produksi di atas kritis (0,341
BOPD atau 3,76 BFPD) pada interval perforasi 10,68 ft. Evaluasi interval perforasi
optimum menyarankan 1-7 ft dengan permeabilitas horizontal 1000 mD. Metode
Bournazel-Jeanson merekomendasikan interval perforasi 1-3 ft dengan
permeabilitas horizontal 1000 mD agar water breakthrough tidak terjadi pada
Sumur HFN-18. Produksi air tinggi pada sumur HFN-18 berdasarkan evaluasi yang
telah dilakukan merupakan akibat dari adanya problem water coning.
Kata kunci: Laju Alir, Perforasi, Water Coning
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ABSTRACT
EVALUATION OF HIGH WATER PRODUCTION IN HFN-18
WELL OF FIELD "VAAL"
By
Halfi Faliq Nurrakhman
NIM: 113190055
(Petroleum Engineering Undergraduated Program)
HFN-18 well is a well that produces in PT Pertamina EP Cepu's "VAAL" Field with
a high water cut value of 90.92% of the total flow rate of 2160.2 BPD. High water
production is expected to have problems so it needs to be evaluated. In this thesis,
the evaluation was carried out to recalculate the productivity of the formation
consisting of making the IPR curve with the Wiggins method. Next, determine the
TIP curve using Pipesim software, as well as evaluate the pressure drop due to
perforation using the Jones, Blount and Glaze equations. Furthermore, Chan
Diagnostic evaluation and critical water coning production rate using Chierici-
Ciucci method and optimum perforation interval using Sobocinski-cornelius
method and Bournazel-Jeanson method were conducted.
IPR and TIP evaluation using the Wiggins method showed HFN-18 Well was
operating at a flow rate of 2160.2 BPD and a pressure of 2347.7 psi. Evaluation of
pressure drop due to perforation using the Jones, Blount, and Glaze methods
yielded an optimum point at ΔP 158.25 psia with a perforation density of 6 SPF.
Chan Diagnostic results show water coning in HFN-18 Well with negative slope
WOR' value. Water coning occurs at production rates above critical (0.341 BOPD
or 3.76 BFPD) at perforation intervals of 10.68 ft. Evaluation of the optimum
perforation interval suggests 1-7 ft with a horizontal permeability of 1000 mD. The
Bournazel-Jeanson method recommends a perforation interval of 1-3 ft with a
horizontal permeability of 1000 mD to prevent water breakthrough from occurring
in HFN-18 Wells. High water production in HFN-18 wells based on evaluations
that have been carried out is the result of water coning problems.
Keywords: Flow Rate, Perforation, Water Coning

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Flow Rate, Perforation, Water Coning
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Eko Yuli
Date Deposited:	12 Jan 2024 03:32
Last Modified:	12 Jan 2024 03:32
URI:	http://eprints.upnyk.ac.id/id/eprint/38646

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