IDENTIFICATION OF DISTRIBUTION AND STRIPPING RATIO (SR) ANALYSIS OF COAL SEAM BY GEOPHYSICAL LOGGING DATA AT PIT-3 MINING COAL CONCESSION IN KOHONG – CENTRAL KALIMANTAN IDENTIFIKASI PENYEBARAN DAN ANALISIS STRIPPING RATIO (SR) SEAM BATUBARA DENGAN MENGGUNAKAN DATA GEOFISIKA LOGGING PADA AREA PIT-3 KONSESI TAMBANG BATUBARA DI KOHONG – KALIMANTAN TENGAH

Ujang Suardi, 0715051040 (2013) IDENTIFICATION OF DISTRIBUTION AND STRIPPING RATIO (SR) ANALYSIS OF COAL SEAM BY GEOPHYSICAL LOGGING DATA AT PIT-3 MINING COAL CONCESSION IN KOHONG – CENTRAL KALIMANTAN IDENTIFIKASI PENYEBARAN DAN ANALISIS STRIPPING RATIO (SR) SEAM BATUBARA DENGAN MENGGUNAKAN DATA GEOFISIKA LOGGING PADA AREA PIT-3 KONSESI TAMBANG BATUBARA DI KOHONG – KALIMANTAN TENGAH. Fakultas Teknik, Universitas Lampung.

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The research of Geophysical Logging exploration has been done at exploration area of PT. Buena Persada Mining Services which is owned by PT. Asmin Koalindo Tuhup in Central Kalimantan. This research identifies the distribution of coal seam and analyzes Stripping Ratio value based on number of coal reserves for information or reference in other mining coal project with the same method. This research uses drilling sample, logging equipments, well log data, and software both WellCAD 4 and Rockwork 15. It is continued through well log data analysis, modeling of lithology distribution, volume calculation of lithology in exploration area, and determination value of Stripping Ratio (SR). One result of this research is description of lithology of exploration area such as: soil, mudstone, siltstone, sandstone, coal, and carbonaceous. The other results are characteristic of log chart of coal seam, range point of Gamma Ray and Density of coal seam of which Gamma Ray is about 0 - 40 cps and Long Density is about 2500 - 8000 cps, 3D model, isopach map, and volume reserves of Overburden and coal seam of research area. The volume reserve of coal is 1,650,000 m3 and the Overburden is 26,100,000 m3. Based on calculated volume reserves, the Stripping Ratio is 15. 704. It means the coal reserves of this area are economic to be exploited. Telah dilakukan penelitian eksplorasi Geofisika Logging di area eksplorasi PT. Buena Persada Mining Services wilayah tambang Batubara PT. Asmin Koalindo Tuhup provinsi Kalimantan Tengah. Penelitian ini mengidentifikasi penyebaran seam batubara dan menganalisis nilai Stripping Ratio dari besarnya cadangan yang dihitung sebagai bahan informasi atau referensi dalam eksploitasi tambang batubara dengan menggunakan metode yang sama. Penelitian ini menggunakan sampel pengeboran, peralatan logging, data log sumur, dan perangkat lunak WellCAD 4 dan Rockwork 15, yang selanjutnya dilakukan analisis data log sumur, pemodelan penyebaran litologi dan penghitungan besarnya volume litologi area penelitian serta penentuan nilai Stripping Ratio (SR). Hasil yang diperoleh adalah didapatkannya deskripsi litologi area penelitian yaitu soil, mudstone, sandstone, siltstone, carbonaceous dan batubara. Didapatkan juga pola grafik log pada seam, besar kecilnya nilai log Gamma Ray dan Density pada seam batubara dimana Gamma Ray berkisar antara 0 – 40 cps dan Long Density berkisar antara berkisar 2500 – 8000 cps, beserta Model 3D (Tiga Dimensi) dan Peta isopach dan besarnya volume Overburden dan seam batubara daerah penelitian. Cadangan batubara didapatkan sebesar 1,650,000 m3, dengan Overburden sebesar 26,100,000 m3, dan Stripping Ratio didapatkan 15.704. berdasarkan data tersebut maka batubara di daerah tersebut ekonomis untuk dieksploitasi.

Tipe Karya Ilmiah: Skripsi
Subyek: A General Works = Karya Karya Umum
A General Works = Karya Karya Umum > Karya Karya Umum = 000
A General Works = Karya Karya Umum > Karya Karya Umum = 000 > Knowledge/Ilmu Pengetahuan
Program Studi: Fakultas Teknik > Prodi Geofisika
Depositing User: A.Md Cahya Anima Putra .
Date Deposited: 16 Feb 2015 03:33
Last Modified: 16 Feb 2015 03:33
URI: http://digilib.unila.ac.id/id/eprint/6908

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