Teknologi Low-Frequency Acoustic untuk Identifikasi Gas Hidrat Berdasarkan Perubahan Karakter Seismik di Perairan Laut Aru

M. Agung Sedayu, Henry M. Manik, Subarsyah Subarsyah

Abstract


Gas hydrate is a type of hydrocarbon formed like crystals and is formed in the seabed sediment layer. Water temperature and pressure affected the area where gas hydrates are formed; gas hydrates are composed of gas and water elements. Gas hydrates have the potential as an alternative to current uses of oils and gasses. The identification of gas hydrates on the seabed can be detected using low-frequency acoustic, seismic technology. This research aims to identify the presence of gas hydrate in Aru Sea waters based on changes in the seismic character of the gas hydrate. The method used is seismic data processing with ProMAX software. This research uses seismic data for the 3.01 trajectory acquired by the Marine Geology Research and Development Center in 2016 in the Aru Sea. Based on the data processed, gas hydrate was detected on the 3.01 line with a depth of 5,925 meters. Gas hydrate indicator on the seabed is characterized by cutting stratigraphy, reversing its polarity, high amplitude, and shape following the seabed. 


Keywords


gas hydrate; low-frequency acoustic; seismic; data processing

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References


Fieser, Louis F and Marry Fieser. 1950. Organic Chemistry. Second Edition. D.C. Heatch and Company, Boston.

Wijayanti W, Sasongko MN, Hamidy N, Purnami. 2017. The effect of crystallizer rotation on the gas hydrate performances. Journal of Environtmental Engineering & Sustainable Technology. 4(1):8-12.

Nandari WW, Prasetyo I, Fahrurrozi M. 2016. Optimasi rasio air dan karbon berpori untuk proses pembentukan metan hidrat. Jurnal Eksergi. 13(1):17-20.

Archer D. 2007. Methane hydrate stability and anthropogenic climate change. Biogeoscience. 4:521-544.

Englezos P, Lee JD. 2005. Gas hydrate: A cleaner source of energy and opportunity for innovative technologies. Korean J. Chem. Eng. 22(5):671-681.

Whelan JK. 2014. When seafloor meets ocean, the chemistry is amazing. Oceanus Magazine. 42(2):66-71.

Pecher IA dan Holbrook WS. 2000. Seismic Methods for Detecting and Quantifying Marine Gas Hydrate/Free Gas Reservoir: In: Oceanic and Permafrost Environments, Max, M.D. (Ed.), Kluwer Academic Publisher, London, Boston, Dordrecht, 286-294.

Manik HM, Susilohadi. 2010. Application of seismic data processing for seabed imaging. International Journal of Remote Sensing and Earth Science. 7:96-100.

Manik HM, Junaedi L, Harsono G. 2016. Pemrosesan citra side scan sonar untuk pemetaan dasar laut Pelabuhan Benoa. Jurnal Nasional Teknik Elektro dan Teknik Informasi. 5(2):93-100.

Subarsyah, Yusuf M. 2004. Pengaruh frekuensi gelombang terhadap resolusi dan delineasi perlapisan sedimen bawah permukaan dari dua instrumen akustik yang berbeda di Sungai Saguling. Jurnal Geologi Kelautan. 2(2):49-53.

Lubis MZ, Surya G, Anggraini K, Kausarian H. 2017. Penerapan teknologi hidroakustik di bidang ilmu dan teknologi kelautan. Oseana. 42(2):34-44.

Buana TW, Wiyono, Dodid M, Untung S. 2010. Pendugaan pergeseran vertikal di daerah Porong dan sekitarnya dengan seismik gelombang “s” (shear wave). Bulletin of Environmental Geology. 20(1):45-53.

Sidiq AP, Manik HM, Tumpal BN. 2019. Studi komparasi metode migrasi seismik dalam mengkarakterisasi reservoir migas di blok kangean, Laut Bali menggunakan inversi impedansi akustik berbasis model. Jurnal Ilmu dan Teknologi Kelautan Tropis. 11(1):205-219

Triarso E, Troa RA. 2016. Indikasi keberadaan gas hidrat pada cekungan busur muka Simeuleu dan potensinya sebagai sumber energi masa depan. Jurnal Kelautan Nasional. 11(3):127-140.

Evans CDR, Brett CP, James JWC, Holmes R. 1995. Shallor Seismic Reflection Profiles from The Waters of East and Southeast Asia an Interpretation Manual and Atlas. British Geological Survey, Nottingham, England.

Sylwester RE. 1983. Handbook of Geophysical Exploration Single Channel, High Resolution, Seismic Reflection Profiling: A Review of The Fundamentals and Instrumentation.R.A. Greyer; CRC Press, Boca Raton, Louisiana, p. 77–122.

Kusnida D, Tommy N, Yulinar F, Ali A. 2018. Stratigrafi Seismik Cekungan Aru, Papua Barat. Jurnal Geologi Kelautan. 16(2):81-90.

Hu G, Yuguan Y, Jian Z, Changling L, Qing L. 2014. Acoustic response of gas hydrate formation in sediment from South China Sea. Marine Petroleum Geology. 52:1-8.

Tsuru T, Kazuo A, Jin-Oh P, Junichi S, Mamoru T. 2019. A new seismic survey technology using underwater speaker detected a low‑velocity zone near the seafloor: an implication of methane gas accumulation in Tokyo Bay. Earth, Planet, and Space. 17(31):1-6.

Majumber M. 2009. Identification of gas hydrates using well log data - A review. GEOHORIZON, p. 38-48.

Wei J. 2014. Distribution and Characteristics of Gas Hydrates in Shallow Sediments of Pockmarks and Seepage Sites [Disertasi]. Bremen (DE): Universität Bremen

Rogers R. 2015. Offshore Gas Hydrates: Origin, Development, and Production. Gulf Professional Publishing (US).

Wang X. 2009. Advance Natural Gas Engineering. Gulf Publishing Company, Houston, Texas.

Priyanto B, Ketil H, Christian Z, Mark VS, Rune M, Edo TH, Zuzana AT, Kenneth D. 2015. Heat flow estimation from bsr: an example from the Aru region, Offshore West Papua, Eastern Indonesia. Proceedings, Indonesian Petroleum Association




DOI: https://doi.org/10.17529/jre.v17i1.17867

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