KHOIRON, MUHAMAD IZZA NUR (2023) ANALISIS KEGAGALAN DAN RE-DESIGN SQUEEZE CEMENTING UNTUK PENUTUPAN PERFORASI DI SUMUR “SF” LAPANGAN “DO”. Other thesis, UPN "Veteran" Yogyajarta.
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Abstract
vi
RINGKASAN
ANALISIS KEGAGALAN DAN RE-DESIGN SQUEEZE
CEMENTING UNTUK PENUTUPAN PERFORASI DI SUMUR
“SF” LAPANGAN “DO”
Oleh
Muhamad Izza Nur Khoiron
NIM: 113190130
(Program Studi Sarjana Teknik Perminyakan)
Sumur “SF” merupakan sumur produksi yang terletak terletak di Kabupaten Bekasi
Provinsi Jawa Barat. Seiring berjalannya waktu, Sumur “SF” dinyatakan sudah
tidak produktif dan memiliki tingkat water cut yang tinggi, sehingga akan dilakukan
penutupan perforasi dan direncanakan reperforasi untuk memperoleh
produktivitasnya kembali. Penutupan perforasi dengan squeeze cementing
menggunakan metode balance plug. Target penyemenan Sumur “SF” berada pada
zona perforasi dengan interval 1893-1896 m. Pada penyemenan pertama dan kedua
pada interval 1893-1896 m belum berhasil dikarenakan terdapat indikasi
permasalahan loss circulation. Setelah dilakukan analisa kegagalan penyemenan
kemudian dilakukan re-design untuk mengatasi permasalahan squeeze cementing
di interval tersebut.
Berdasarkan perhitungan re-design, volume slurry yang dibutuhkan yakni
sebanyak 10.45 bbl dengan densitas 13.8 ppg. Di ketahui Sumur “SF” merupakan
sumur directional tipe J dengan kedalaman total 2261 m MD dan m 2099 TVD
dengan bottom hole static temperature (BHST) 243 deg.F. Semen dengan tipe kelas
G digunakan untuk operasi penyemenan kali ini. Additive-additive digunakan untuk
mengatasi permasalahan di Sumur “SF” antara lain, BAD-14L sebagai dispersant,
BAR-19L sebagai retarder, BAL-22L sebagai fluid loss control agent, BAG-17L
sebagai gas block, BAF-26L sebagai antifoam, serta special additive yakni BAS-
200 atau silica flour yang digunakan untuk mencegah strength retrogation
Berdasarkan pengujian nilai compressive strength pada re-design sudah memenuhi
standar API yakni 810 psi selama pengujian 24 jam. Pada pengujian thickening time
yakni 4 jam 16 menit pada 100 BC. Secara perhitungan dan pengujian re-design
sudah sesuai namun perlu diaplikasikan untuk mengetahui keefektifan re-design
tersebut untuk menutup perforasi pada Sumur “SF” yang terdapat permasalahan
loss circulation.
Kata kunci: squeeze cementing, loss circulation, re-design, additive.
vii
ABSTRACT
FAILURE ANALYSIS AND RE-DESIGN OF SQUEEZE
CEMENTING FOR PERFORATION CLOSING IN “SF” WELL
“DO” FIELD
By
Muhamad Izza Nur Khoiron
NIM: 113190130
(Petroleum Engineering Undergraduated Program)
The "SF" well is a production well located in Bekasi Regency, West Java Province.
As time goes by, the "SF" Well is declared to be unproductive and has a high water
cut rate, so the perforations will be closed and reperforation planned to regain its
productivity. Closing the perforation with squeeze cementing using the balance
plug method. The cementing target for the "SF" Well is in the perforation zone with
an interval of 1893-1896 m. The first and second cementing in the 1893-1896 m
interval was not successful because there were indications of loss circulation
problems. After analyzing the cement failure, a re-design was carried out to
overcome the squeeze cementing problem in this interval.
Based on re-design calculations, the required slurry volume is 10.45 bbl with a
density of 13.8 ppg. It is known that the "SF" well is a type J directional well with
a total depth of 2261 m MD and 2099 m TVD with a bottom hole static temperature
(BHST) of 243 deg.F. Class G cement was used for this cementing operation.
Additives used to overcome problems in "SF" Wells include, BAD-14L as a
dispersant, BAR-19L as a retarder, BAL-22L as a fluid loss control agent, BAG-
17L as a gas block, BAF-26L as an antifoam, and special additive namely BAS-200
or silica flour which is used to prevent strength retrogation
Based on testing, the compressive strength value in the redesign meets API
standards, namely 810 psi during 24 hour testing. In the thickening time test, it was
4 hours 16 minutes at 100 BC. In terms of calculations and testing, the re-design is
appropriate, but it needs to be applied to determine the effectiveness of the re-
design to close perforations in "SF" Wells that have loss circulation problems.
Keywords: squeeze cementing, loss circulation, re-design, additive
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | squeeze cementing, loss circulation, re-design, additive |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 02 Oct 2023 01:47 |
| Last Modified: | 02 Oct 2023 01:47 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/37755 |
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