Potensi batuan sumber (source rock) hidrokarbon di Pegunungan Tigapuluh, Sumatera Tengah

Rachmat Heryanto, Heri Hermiyanto

Abstract


http://dx.doi.org/10.17014/ijog.vol1no1.20065a

The Tigapuluh Mountain located in southeast corner of the Riau Province, is a part of the southern margin of the Central Sumatera Basin, one of the biggest hydrocarbon producing basin in Indonesia. The hydrocarbon source rock potential is a fine grained clastics within the Late Eocene Kelesa and Oligocene Lakat Formations.

The Kelesa Formation source rock has a TOC value of 2.319.63%, with hydrocarbon content of a good to excellent categories (6.2370.72 kg/ton rock), whereas the Lakat Formation has a TOC value of 0.673.46%, with hydrocarbon content of a poor to excellent categories (1.2137.38 kg/ton rock). Source rock thermal maturation of the Kelesa Formation ranges from a late immature to early mature, with kerogen type of I and II, whereas the Lakat Formation ranges from a late immature, with kerogen type of I, II, and III.

Diagenetic stage of the hydrocarbon source rock of the Kelesa Formation is included to Mudrock Stage II which is equivalent to a mesogenetic mature “A”. This diagenetic proccess was due to the burial history with the depth of up to 3000 m, resulted in a paleotemperature of 95C. The Lakat Formation is, however, included to Mudrock Stage I equivalent to the mesogenetic immature level. Burial history which occurred at the paleo temperature up to 65C, with the depth of burial up to 1500 m, led to the diagenetic process.

 

 


Keywords


kerogen; hydrocarbon; pyrolysis; diagenesis; source rock

References


Burley, S. D., Kantorowicz, J.D., dan Waugh, B., 1987. Clastic Diagenesis. Dalam: Edward, A.B., dan Foster, N.H.(Ed), Reservoir II Sandstone, American Association of Petroleum Geology, Treatise of Petroleum Geology Reprint Series, p.408-455.

Cook, A.C., 1982. The origin and petrology of organic matter in coals, oil shales and petroleum source-rocks. Geology Department, The University of Wollongong, 106p.

Coster, G.L.de, 1974. The geology of the central and south Sumatra basins. Indonesian Petroleum Association, p.77- 110

Djamas, J. 1979. Stratigrafi Tersier Cekungan Sumatra Tengah, Cekungan Sumatra Selatan dan Cekungan Bengkulu. Unpublished Report, Pertamina UEP - II, Plaju, Arsip Pertamina.

Espitalie, J., Laporte, J.L., Madec, M., Marquis, F., Leplat, P., Paulet, J. and Boutefeu, A., 1977. Methode rapide de caracterisation des roches meres, de leur potentiel petrolier et de leur degre d’evolution. Rev. Inst. Franc. Petrole, 32, 1, p.23-40.

Helmod, K.P. and van de Kamp, P.C., 1984. Diagenetic mineralogy and controls on albitization and laumontite formation in Paleogene Arkose, Santa Ynez Mountains, California. In: McDonald , D.A. and Surdam, R.C. (Eds), Clastic Diagenesis. American Association of Petroleum Geology, Memoir, 37, p.239-276.

Kantsler, A.J., Cook, A.C., dan Smith, G.C., 1978. Rank variation, calculated paleotemperatures in understanding oil, gas occurrence. Oil and Gas Journal, Nov. 20, p.196- 205.

Katz, B.J., 1983. Limitations of ‘Rock-Eval’ pyrolysis for typing organic matter. Organic Geochemistry., 4, p.195- 199.

Panggabean, H., 2000. Penelitian Karakter dan Sifat Fisik Batuan Berd asarkan Analisis “SE M” Terhadap Sejumlah Contoh Formasi Pembawa “Oil Shale” di Sumatera Bag ian Teng ah. Pusat Penelitian Pengembangan Geologi Bandung (Laporan Tidak Terbit).

Panggabean, H., 2004. Laporan hasil pemeriksaan SEM dan XRD beberapa Contoh Sedimen dari daerah Bukit Susah. GeoLab Pusat Penelitian Pengembangan Geologi. (Laporan Tidak Terbit).

Peters, K.E., 1986. Guidelines for evaluating petroleum source rock using programmed pyrolysis. American Association of Petroleum Geology, Bulletin., 70, p.1-36.

Pittman, E.D., 1979. Porosity, diagenesis and productive capability of sandstone reservoir. SEPM Sp ecia l. Publication, No. 26, p.159-173.

Schmidt, V. and McDonald, D.A., 1979. The rocks of secondary in the course of sandstone diagenesis. Social. Eco nomic Pa leon tolo gy. Mineralo gy, Special Publication. No. 26, p.175-207.

Simandjuntak, T.O., Buditrisna, T., Surono, Gafoer, S., and Amin, T.C., 1994. Peta Geologi Lembar Muarabungo, Sum atera., skala 1:250,000. Pu sat Penelitian Pengembangan Geologi, Bandung.

Spruyt, J. M., 1956. Subdivision and nomenclature of Tertiary sediments of Palembang - Jambi area. Unpublished Report, Pertamina.

Susanto, E., Suwarna, N., dan Hermiyanto,H., 2004. Laporan Penelitian Fosil Fue, Kajian Oil Shale di Sumatera Bagian Tengah. Pusat Penelitian Pengembangan Geologi (Laporan Tidak Terbit)

Suwarna, N., Budhitrisna, T., Santosa, S., and Andi Mangga, S., 1994. Peta Geologi Lembar Rengat, skala 1 : 250,000. Pusat Penelitian Pengembangan Geologi Bandung .

Suwarna, N., Heryanto, R., dan Panggabean, H., 2000. Laporan Penelitian Potensi “oil Shale” di Sumatera Tengah. Pu sat Penelitian P engembangan Geologi (Laporan Tidak Terbit).

Williams, H.H., Kelley, P.A., Janks, J.S. dan Christensen, R.M., 1985. The Paleogene rift basin source rocks of central Sumatra. Indonesian Petroleum Association, p.57-89.

Wilson, M.D. and Pittman, E.D., 1977. Authigenic clays in sandstone: Recognised and influence on reservoir properties and palaeoenvironmental analysis. Jour. Sed. Petrol. No. 47, p. 3-31.


Full Text: PDF

Refbacks

  • There are currently no refbacks.


Creative Commons License
Indonesian Journal on Geoscience by https://ijog.geologi.esdm.go.id/index.php/IJOG/index is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

 

Indexing Site :

 

 

 

Follow us on:


shopify visitor statistics
View My Stats