DETAIL KOLEKSI

Penentuan Rasio Kapasitas Simpan Reservoir Cbm Lapangan H Berdasarkan Analisis Injection Fall-off Test


Oleh : Dimas Alif Gibran H.

Info Katalog

Nomor Panggil : 833/TP/2018

Penerbit : FTKE - Usakti

Kota Terbit : Jakarta

Tahun Terbit : 2018

Pembimbing 1 : Ratnayu Sitaresmi

Pembimbing 2 : Yusridha K.

Subyek : Reservoir

Kata Kunci : final project, pertamina, reservoir, storativity ratio.


File Repositori
No. Nama File Ukuran (KB) Status
1. 2018_TA_TM_071001300061_Halaman-Judul.pdf 2055.68
2. 2018_TA_TM_071001300061_Bab-1.pdf 631.08
3. 2018_TA_TM_071001300061_Bab-2.pdf 1424.44
4. 2018_TA_TM_071001300061_Bab-3.pdf 1714.96
5. 2018_TA_TM_071001300061_Bab-4.pdf 1564.38
6. 2018_TA_TM_071001300061_Bab-5.pdf 773.78
7. 2018_TA_TM_071001300061_Bab-6.pdf 651.6
8. 2018_TA_TM_071001300061_Daftar-pustaka.pdf 797.76
9. 2018_TA_TM_071001300061_Lampiran.pdf 2421.49

P Penelitian Tugas Akhir yang dilakukan di UTC Pertamina ini membahasmengenai analisis pengujian sumur dengan metode injection fall-off test padareservoir coalbed methane. Tujuan dari pengujian sumur tersebut adalahmenentukan karakteristik reservoir, antara lain tekanan awal reservoir,permeabilitas reservoir, faktor kerusakan formasi (skin), batas reservoir (boundary),maupun kemampuan reservoir tersebut memproduksikan gas metana batubara.Namun pada penelitian kali ini, analisis hasil injection fall-off test akan difokuskanpada karakteristik reservoir terutama rasio kapasitas simpan (ω) reservoir tersebut.Analisis hasil injection fall-off test akan dibantu dengan perangkat lunak Ecrin.Analisis dilakukan pada sumur DAG yang memiliki beberapa lapisanbatubara. Dari hasil analisis yang dilakukan penelitian ini, didapat rasio kapastiassimpan (ω) pada coal seam 1 sebesar 0.608, coal seam 3 sebesar 0.635, coal seam4 sebesar 0.171, dan pada coal seam 11 sebesar 0.901. Nilai rasio kapasitas simpanpaling kecil dimiliki oleh coal seam 4, sementara nilai omega (ω) paling besardimiliki oleh coal seam 11. Hal tersebut menandakan pada coal seam 11 terdapatkandungan air yang lebih banyak dibanding coal seam lainnya karena memilikirongga rekahan lebih banyak dan dalam reservoir batubara rongga rekahan diisioleh air, sehingga akan memakan waktu lebih lama pada proses dewatering.

I In this final project conducted at UTC Pertamina discusses the analysis ofwell testing with injection fall-off test method on coalbed methane reservoir. Thepurpose of well testing is to determine the reservoir characteristics, such as reservoirinitial pressure, reservoir permeability, formation damage factor (skin), reservoirboundary, and reservoir deliverability to produce coalbed methane gas. However,in this research, the analysis of the injection fall-off test will be focused on theidentification of the fluid flow pattern and the storativity ratio (ω) of the reservoir.Analysis of the injection fall-off test will be assisted by commercial software.The analysis was performed on DAG wells that had several layers of coal.From the analysis result of this research, got the reservoir storativity ratio (ω) atcoal seam 1 equal to 0.608, coal seam 3 equal to 0.635, coal seam 4 equal to 0.171,and at coal seam 11 equal to 0.901. The smallest reservoir storativity ratio is ownedby coal seam 4, while the largest value of omega (ω) is owned by coal seam 11. Itindicates that coal seam 11 contains more water content than other coal seambecause it has more fracture cavity and in the coal reservoir the fractured cavity isfilled with water, so it will take longer on the dewatering process.

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