EVALUASI HASIL REMEDIAL CEMENTING DAN REFORMULASI SLURRY SEMEN TERHADAP KEBERHASILAN REMEDIAL CEMENTING DENGAN PERMASALAHAN GAS CO2 CHANNELING DI SUMUR D-04 LAPANGAN JATIBARANG

RUSTAMI, DEFI (2024) EVALUASI HASIL REMEDIAL CEMENTING DAN REFORMULASI SLURRY SEMEN TERHADAP KEBERHASILAN REMEDIAL CEMENTING DENGAN PERMASALAHAN GAS CO2 CHANNELING DI SUMUR D-04 LAPANGAN JATIBARANG. Other thesis, UPN Veteran Yogyakarta.

	Text ABSTRAK.PDF Download (17kB)
	Text COVER.PDF Download (234kB)
	Text DAFTAR_ISI.PDF Download (372kB)
	Text DAFTAR_PUSTAKA.PDF Download (245kB)
	Text PENGESAHAN.PDF Download (417kB)
	Text REVISI_TESIS_DEFI_R_FIX.PDF Restricted to Repository staff only Download (4MB)

Abstract

v
RINGKASAN
EVALUASI HASIL REMEDIAL CEMENTING
DAN REFORMULASI SLURRY SEMEN
TERHADAP KEBERHASILAN REMEDIAL CEMENTING
DENGAN PERMASALAHAN GAS CO2 CHANNELING
DI SUMUR D-04 LAPANGAN JATIBARANG
Oleh
Defi Rustami
NIM: 213221009
(Program Studi Magister Teknik Perminyakan)
Sumur D-04 merupakan sumur dengan reservoir minyak dan gas pada Struktur
Bangodua Formasi Cibulakan Atas (CBA) yang berada di wilayah kerja PT.
Pertamina EP Asset 3 Field Jatibarang. Sumur ini mulai berproduksi pada tahun
2013 dimana seiring berjalannya waktu Sumur D-04 mengalami penuruanan
produksi yang berdasarkan data salah satunya disebabkan karena sering terjadi
kerusakan artificial lift ESP. Kerusakan Electric Submercible Pump terjadi karena
terdapat gas yang ikut terproduksi akibat problem bonding semen yang kurang baik
yang menyebabkan channeling di sekitar lubang sumur. Remedial cementing
dilakukan untuk mengatasi problem tersebut pada zona yang terindikasi memiliki
bonding cement yang buruk.
Penelitian diawali dengan melakukan pengumpulan data seperti data sumur, data
reservoir, data logging dan program penyemenan. Analisa penyebab terjadinya
air/gas CO2 channeling dilakukan pada Sumur D-04 yaitu dengan menginterpretasi
Cemen Bond Log (CBL) dan Variable Density Log (VDL). Hasil analisa digunakan
untuk menentukan zona yang perlu dilakukan penyemenan ulang (perbaikan
bonding) dan reformulasi untuk mengatasi problem air/gas CO2 channeling.
Evaluasi kinerja sumur dilakukan setelah perbaikan bonding yaitu dengan
membandingkan kinerja produksi sebelum dan sesudah remedial cementing.
Analisa yang telah dilakukan memberikan hasil bahwa terdapat tiga zona pada
Sumur D-04 yang perlu dilakukan remedial cementing yaitu pada interval 1040-
1041 mMD, 1045-1048 mMD, dan 1055-1057 mMD. Penyemenan dibagi menjadi
tiga tahap dimana pada tahap pertama keberhasilan remedial cementing tercapai
setelah melakukan 4 kali reformulasi cement slurry dengan penggunaan spherilite
sebagai semen lite untuk memperkuat compressive strength. Berdasarkan analisa
CBL dan VDL serta kinerja sumur sebelum dan sesudah remedial cementing
menunjukkan perbaikan bonding secara keseluruhan pada sumur D-04 berhasil
menyekat zona gas dan zona air dan memberikan pengaruh positif terhadap kinerja
produksi.
Key word : remedial cementing, channeling, bonding, reformulasi
vi
ABSTRACT
EVALUATION OF REMEDIAL CEMENTING RESULTS AND
CEMENT SLURRY REFORMULATION ON THE SUCCESS
OF REMEDIAL CEMENTING WITH CO2 CHANNELING
GAS PROBLEM IN WELL D-04 JATIBARANG FIELD
By
Defi Rustami
NIM: 213221009
(Master of Petroleum Engineering Program)
Well D-04 is a well with oil and gas reservoirs in the Bangodua Structure of the
Upper Cibulakan Formation (CBA) located in the PT Pertamina EP Asset 3 Field
Jatibarang working area. This well began production in 2013 where over time Well
D-04 experienced a decline in production, which based on data, one of which was
caused by frequent damage to the artificial lift ESP. Damage to the Electric
Submercible Pump occurred because there was gas that was produced due to poor
cement bonding problems that caused channeling around the wellbore. Remedial
cementing was carried out to overcome the problem in zones indicated to have poor
cement bonding.
The study began with data collection such as well data, reservoir data, logging data
and cementing program. Analysis of the cause of CO2 water/gas channeling was
conducted at Well D-04 by interpreting the Cemen Bond Log (CBL) and Variable
Density Log (VDL). The results of the analysis were used to determine the zones
that needed to be re-cemented (bonding repair) and reformulated to overcome the
CO2 channeling water/gas problem. Well performance evaluation was conducted
after bonding repair by comparing production performance before and after
remedial cementing.
The analysis that has been carried out provides results that there are three zones in
Well D-04 that need remedial cementing, namely at intervals 1040-1041 mMD,
1045-1048 mMD, and 1055-1057 mMD. Cementing was divided into three stages
where in the first stage the success of remedial cementing was achieved after
reformulating the cement slurry 4 times with the use of spherilite as lite cement to
strengthen compressive strength. Based on CBL and VDL analysis and well
performance before and after remedial cementing, the overall bonding
improvement in well D-04 successfully sealed the gas zone and water zone and had
a positive influence on production performance.
Key word : remedial cementing, channeling, bonding, reformulation

Item Type:	Thesis (Other)
Uncontrolled Keywords:	remedial cementing, channeling, bonding, reformulation
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Eko Yuli
Date Deposited:	16 Aug 2024 07:15
Last Modified:	16 Aug 2024 07:15
URI:	http://eprints.upnyk.ac.id/id/eprint/40729

Actions (login required)

View Item