SEBARAN DUGAAN GAS BIOGENIK BERDASARKAN HASIL PENAFSIRAN REKAMAN STRATA BOX DI PERAIRAN TANJUNG PONTANG-BANTEN
Abstract
Penelitian gas biogenik di perairan Tanjung Pontang dan sekitarnya menerapkan metode geofisika menggunakan alat akustik (strata box). Keberadaan gas biogenik dalam rekaman akustik, dicirikan oleh tidak adanya gambaran pantul dalam (free reflector), dan menampakan warna hitam. Penelitian ini bertujuan untuk memanfaatkan sumber daya energi alternatif, berupa gas biogenik untuk dapat dimanfaatkan oleh masyarakat di sekitar daerah penelitian.
Hasil penafsiran rekaman strata box, kemudian runtunan yang diperkirakan mengandung gas biogenik diplot dalam peta lintasan. Hasil penafsiran menunjukkan bahwa akumulasi gas biogenik terdapat di kedalaman 2.5 meter pada lintasan 3 (L-3), di kedalaman 10.0 meter pada lintasan 7 (L-7), dan di kedalaman 5.0 meter pada lintasan 3 (L-3).
Kata kunci : rekaman strata box, penafsiran, peta pola sebaran gas biogenik.
Biogenic gas research in Tanjung Pontang and its surrounding waters applied geophysic method of acoustic equipment (strata box). Occurrences of biogenic gas in the acoustic records were characterized by no internal reflection patterns (free reflector), and black colour appearance. The research was meant to utilize alternative energy resources, biogenic gas for local community surround the gas deposits.
Results on strata box interpretation, then plotted on ship track map of its possible biogenic gas bearing sequences. It indicates that biogenic gas is accumulated in 2.5 meter depth on the 3 (L-3) track, in 10.0 meter depth on the 7 (L-7) track, and in 5.0 meter depth on the 3 (L-3) track.
Key words : strata box records, interpretation, biogenic gas distribution pattern map.
Hasil penafsiran rekaman strata box, kemudian runtunan yang diperkirakan mengandung gas biogenik diplot dalam peta lintasan. Hasil penafsiran menunjukkan bahwa akumulasi gas biogenik terdapat di kedalaman 2.5 meter pada lintasan 3 (L-3), di kedalaman 10.0 meter pada lintasan 7 (L-7), dan di kedalaman 5.0 meter pada lintasan 3 (L-3).
Kata kunci : rekaman strata box, penafsiran, peta pola sebaran gas biogenik.
Biogenic gas research in Tanjung Pontang and its surrounding waters applied geophysic method of acoustic equipment (strata box). Occurrences of biogenic gas in the acoustic records were characterized by no internal reflection patterns (free reflector), and black colour appearance. The research was meant to utilize alternative energy resources, biogenic gas for local community surround the gas deposits.
Results on strata box interpretation, then plotted on ship track map of its possible biogenic gas bearing sequences. It indicates that biogenic gas is accumulated in 2.5 meter depth on the 3 (L-3) track, in 10.0 meter depth on the 7 (L-7) track, and in 5.0 meter depth on the 3 (L-3) track.
Key words : strata box records, interpretation, biogenic gas distribution pattern map.
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PDF (Bahasa Indonesia)DOI: http://dx.doi.org/10.32693/jgk.9.3.2011.207
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