Petrofisika dan Pemodelan untuk Evaluasi Potensi Hidrokarbon Serpih Formasi Kelesa, Cekungan Sumatra Tengah
DOI:
https://doi.org/10.33332/jgsm.geologi.v23i4.699Abstract
Hidrokarbon serpih merupakan sumber energi minyak dan gas bumi non-konvensional yang terperangkap dalam formasi batuan serpih kaya akan kandungan material organik, akan tetapi memiliki porositas dan permeabilitas yang sangat rendah. Penyelidikan ini memiliki tujuan untuk menjelaskan proses karakterisasi serpih Formasi Kelesa yang berpotensi sebagai pembawa hidrokarbon serpih berdasarkan perbedaan kondisi geologi, struktur, petrofisika, geokimia, dan geomekanika. Penyelidikan ini dilakukan pada Formasi Kelesa di Cekungan Sumatra Tengah, Provinsi Riau. Penyelidikan ini menggunakan data hasil analisis laboratorium geokimia, data log sumur, dan data seismik 2D. Data log sumur digunakan untuk analisis petrofisika yang menghasilkan nilai property batuan pembawa hidrokarbon serpih, yaitu kandungan serpih, TOC, dan indeks kegetasan. Data hasil analisis laboratorium geokimia digunakan untuk kalibrasi hasil analisis petrofisika. Interpretasi seismik dengan melakukan penarikan horizon Formasi Kelesa menghasilkan peta struktur kedalaman. Pemodelan statis property kandungan serpih, TOC, dan indeks kegetasan dilakukan dengan mengintegrasikan hasil interpretasi seismik dan analisis data sumur. Selain itu, analisis sejarah pengendapan atau burial history dilakukan untuk membuat pemodelan kematangan. Integrasi dari semua hasil pengolahan data menentukan daerah menarik (sweet spot) dari serpih Formasi Kelesa di daerah penyelidikan.
Katakunci : Daerah menarik, Formasi Kelesa, hidrokarbon serpih, petrofisika.
Downloads
References
Anderson, R.A., Ingram, D.S., and Zanier, A.M., 1973. Determining Fracture Pressure Gradients from Well Logs. Journ. Pet. Technol., 25(11):1259–1268. doi:10.2118/4135-PA.
Barker, C., 1986. Organic Geochemistry in Petroleum Exploration. AAPG Bull., 10: 39-41.
Boggs, S. Jr., 2001. Principle of Sedimentology and Stratigraphy, 3rd edition. Pearson Prentice Hall, Upper Saddle River, New Jersey, 726p.
Chinn, E.W., 1991. The Role of Organic Geochemistry in Petroleum Exploration. Basin Research Institute Bulletin, Louisiana State University.
Crain, E.R., 2015. Crain's Petrophysical Handbook: Brittleness Index (BI).
de Coster, G.L., 1974. The Geology of the Central and South Sumatra Basins. Indonesian Petroleum Association, 3rd Annual Convention IPA Proceedings, Jakarta.
Eubank, R.T. and Makki A., 1981. Structural Geology of the Central Sumatra Back-arc Basin. Proc. 10th Indonesia Petroleum Association Annual Convention, Jakarta, 153-196.
Grieser, B. and Bray, J., 2007. Identification of Production Potential in Unconventional Reservoirs. Presented at SPE Production and Operations Symposium.
Heryanto, R. dan Hermiyanto, H., 2006. Potensi Batuan Sumber (Source Rock) Hidrokarbon di Pegunungan Tigapuluh, Sumatra Tengah. Jurnal Geologi Indonesia, 1(1): 37-48.
Hutton, A.C., 1991. Classification, Organic Petrography and Geochemistry of Oil Shale. Proceeding 1990 Eastern Oil Shale Symposium. Lexington, University of Kentucky Institute for Mining and Minerals Research, p. 163-172.
Murphy. W. F., Schwartz. L. M., and Hornby, B. E., 1991. Interpretation Physics of Compressional and Shear Velocities in Sedimentary Rocks. 32nd Ann. Logging Symp. Trans., Soc. Prof. Well Log Analysts, paper FF, 24.
Passey, Q.R., Creaney, S., Kulla, J.B., Moretti F.J., and Stroud J.D., 1990. A Practical Model for Orogenic Richness from Porosity and Resistivity Logs. The American Association of Petroleum Geologist Bulletin, 74.
Perez, R. and Marfurt, K., 2013. Calibration of Brittleness to Elastic Rock Properties via Mineralogy Logs in Unconventional Reservoirs. AAPG International Conference and Exhibition, Cartagena, Colombia.
Peters, K.E. and Cassa, M.R., 1994. Applied Source Rock Geochemistry. AAPG Memoir 60: The Petroleum System -From Source to Trap. The American Association of Petroleum Geologist, Tulsa, Okla.
Susanto, E., Suwarna, N., dan Hermiyanto, M.H., 2004. Penelitian Fosil Fuel dan Paleontologi, Kajian Oil Shale di Daerah Bukit Susah, Riau. Laporan Internal Proyek Kajian dan Informasi Geologi Tematik, Tahun Anggaran 2004, Pusat Penelitian dan Pengembangan Geologi, Bandung.
Suwarna, N., Budhitrisna, T. dan Santosa, S., 1987. Laporan Geologi Lembar Rengat, Sumatra. Open File Report, Geological Research and Development Centre, Bandung.
Suwarna, N., Budhitrisna, T., Santosa, S. dan Andi Mangga, S., 1994. Peta Geologi Lembar Rengat, Sumatra Skala 1:250.000. Pusat Penelitian dan Pengembangan Geologi, Bandung.
Wibowo, R.A., 1995. Pemodelan Termal Sub-Cekungan Aman Utara Sumatra Tengah. Bidang Studi Ilmu Kebumian – Program Pasca Sarjana Institut Teknologi Bandung, Unpublished.
Wygrala, B.P., 1989. Integrated Study of an Oil Field in the Southern Po Basin, Northern Italy. Ph.D. dissertation, University of Cologne, 217 p.
Zou, C., Zhu, R., Tao, S., Hou, L., Yuan, X., Song, Y., Niau, J., Dong, D., Liu, S., Jiang, L., Wang, S., and Zhang, G., 2013. Unconventional Petroleum Geology. Elsevier, 225 Wyman Street, Waltham, MA 02451, USA, 365 h.
Downloads
Published
Issue
Section
License
Authors who publish articles in Jurnal Geologi dan Sumberdaya Mineral (JGSM.Geologi) agree to the following terms:
- Authors retain copyright of the article and grant the journal right of first publication with the work simultaneously licensed under a CC-BY-NC or The Creative Commons Attribution–ShareAlike License.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access)
