Gas Lift Optimization of CAT-07H Well in Cath Offshore Field Using Gas Lift Pack Off

Ratnaningsih, Dyah Rini and Kristanto, Dedy and Febriana, Catherine (2023) Gas Lift Optimization of CAT-07H Well in Cath Offshore Field Using Gas Lift Pack Off. In: AIP Conference Proceedings, 12 June 2023, -.

Text 6- Prosiding AIP Conference 2023-Gas lift optimization of CAT-07H (June 2023).pdf Download (979kB)

Abstract

Abstract. Well CAT-07H is a producing oil well located in Cath Offshore Field. This well has been producing using gas
lift method which its injection gas is supplied by COM-182 compressor. In June 2019, the production of this well was
interrupted by the fault of COM-182 which initially supplied 1100-1300 psi injection pressure at CAT-07H casing to only
800-1000 psi after being repaired. Due this change of injection parameter, CAT-07H was no longer able to be produced due
to insufficient injection pressure. In the other hand, the well having relatively high water cut (75%) and depleted reservoir
pressure made this well can no longer flowing naturally. The most possible solution for this problem is to optimize gas lift
injection depth to match the new supplied gas pressure. In this paper CAT-07H is the sample well candidate to be evaluated
for GLPO installation. CAT-07H is initially a gas lifted well which receive gas from COM-182 compressor. Due to decrease
in performance of COM-182 compressor, gas parameter received on CAT-07H from COM 182 is no longer suitable with
existing gas lift installation. Based on evaluation, gas pressure generated from this compressor decreases from 1100-1300
psi range to 800-1000 psi range. Based on this data, gas lift optimization is required to adjust gas lift on CAT-07H to meet
the new pressure range. 800 psi is used as design parameter with maximum injection gas rate of 1 MMSCFD. Based on
the evaluation in this thesis, it is found that gas lift can be optimized using GLPO method by changing the injection point
to 2900 ft with punch port diameter if 0.15 inch which can be acieved using 1606 L puncher. After the optimization using
GLPO on CAT-07H, production rate can be optimized to 2532 BFPD with net production of 633 BOPD.
Keywords: gas lift optimization, GLPO, retrofit gas lift

Item Type:	Conference or Workshop Item (Paper)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Dr.Ir, MT Dedy Kristanto
Date Deposited:	16 Aug 2023 08:33
Last Modified:	17 Aug 2023 08:05
URI:	http://eprints.upnyk.ac.id/id/eprint/36925

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