INDIKASI GAS BIOGENIK DI PERAIRAN DELTA MAHAKAM, PROVINSI KALIMANTAN TIMUR

I Nyoman Astawa, Deny Setiady, Priatin Hadi Wijaya, GM. Hermansyah, Mario Dwi Saputra

DOI: http://dx.doi.org/10.32693/jgk.14.2.2016.354

Abstract


Gas biogenik dikenal sebagai gas rawa atau gas dangkal yang terbentuk dari bakteri metanogenik pada lingkungan anaerobik, khususnya pada daerah-daerah yang tingkat sedimentasinya sangat tinggi.Tujuan penelitian untuk mengetahui secara lebih rinci akan keberadaan gas tersebut di Delta Mahakam. Sungai tersebut merupakan sungai terbesar dan terpanjang di wilayah Kalimantan Timur dan mempunyai tingkat sedimentasi sangat tinggi. Daerah tersebut sangat cocok untuk penelitian indikasi gas biogenik. Hasil penelitian ditandai dengan terdapatnya kantong gas pada rekaman strata box, yang berada pada kedalaman lebih dari 10 (sepuluh) meter. Berdasarkan analisis laboratorium terhadap sampel gas yang diambil di bekas lubang bor adalah gas metan.

Kata kunci: rekaman strata box, gas metan, Delta Mahakam

Biogenic gas known as swamp gas or shallow gas formed by methanogenic bacteria in anaerobic environments, especially in areas that the sedimentation rate is very high. The objective of the research is to find out more detail the occurrence of gas in the Mahakam Delta. The river is the largest and longest river in the East Kalimantan, and it has a very high sedimentation rate.  This area is very good to study the indication of the biogenic gas. The result is signed by gas pocket in the strata box records, whereas at a depth of more than 10 (ten) meters. Based on the laboratory analysis of the samples taken from the former gas borehole is a methane gas.

Keywords: strata box records, methane gas, Mahakam Delta.


Keywords


rekaman strata box; gas metan; Delta Mahakam

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References


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DOI: http://dx.doi.org/10.32693/jgk.14.2.2016.354

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