bravo, pak awang! terimakasih atas infonya. 1) boleh juga nih kalau diinfokan juga apa saja judul ke-16 makalah yg dipresentasikan tsb. lebih lanjut, apakah bagi yg tidak hadir pada acara tsb, dapat memperoleh makalah lengkapnya (kalau ada), mungkin lewat iatmi ya?
2) tentang format presentasi secara formal, tentu saja waktunya selalu terbatas atau dibatasi. seharusnya tidak ada istilah terburu-buru, karena si presenter sudah tahu alokasi waktunya dan tentunya dapat menyesuaikan diri dan memberikan presentasi (oral) secara pas. masih mengenai presentasi, apabila ingin memberikan presentasi dg lebih leluasa dan ilmunya dapat saling dicerna, maka presentasi berbentuk poster adalah pilihan yg lebih baik dibandingkan dg presentasi oral. saya bisa panjang-lebar cerita ini, tetapi pada intinya bahwa presentasi poster bukanlah kelas dua dibandingkan dg presentasi oral yg katanya (oleh sebagian orang) dianggap lebih bergengsi. salam, syaiful On Thu, Apr 24, 2008 at 2:16 AM, Awang Satyana <[EMAIL PROTECTED]> wrote: > IATMI sedang mengadakan worshop "carbonate complexity : characterization, > modeling and simulation" di Yogyakarta dari 22-25 April 2008. Workshop > dihadiri sekitar 80 orang dari berbagai institusi pemerintah, oil companies, > service companies, dan perguruan tinggi. > > Workshop didahului oleh kursus satu hari tentang aspek geologi dan reservoir > engineering karbonat dibawakan oleh Alit Ascaria (Premier Oil) dan Doddy > Abdassah (ITB). > > Workshop dibuka pada 23 April 2008 oleh Ketua IATMI Kuswo Wahyono, > dilanjutkan dengan pidato sambutan oleh John Sinulingga mewakili Pertamina > Eksploitasi (panitia workshop adalah IATMI Komda Cirebon –Pertamina), dan > pidato/presentasi kunci dari Handoyo Eko Wahono (BPMIGAS) tentang > lapangan-lapangan karbonat yang dikembangkan dalam lima tahun terakhir, Bob > Yulian (BPMIGAS) tentang kemajuan eksplorasi target karbonat di Indonesia, > dan Gatot Kariyoso Wiroyudo (Shell) tentang investasi teknologi Shell dalam > mengerjakan karbonat. > > Makalah teknis yang dipresentasikan sebanyak 16 makalah. Workshop diselingi > dengan fieldtrip ke Gunung Kidul mengunjungi singkapan karbonat Wonosari. > > Pembicara mendapatkan kesempatan berbicara cukup tenang karena waktu yang > diberikan antara 20-30 menit, pertanyaan 5-10 menit. Workshop ini jelas > bermanfaat menambah wawasan aspek GGRE karbonat. Karbonat merupakan objektif > sangat penting karena menyusun sekitar 50 % reservoir lapangan2 produksi di > Indonesia. Bahkan dalam lima tahun terakhir, 54 % recoverable reserve > lapangan-lapangan baru berasal dari reservoir karbonat, maka karbonat tak > kalah penting dari reservoir silisiklastik, bahkan bisa lebih. > > Saya diundang IATMI berkontribusi makalah tentang geologi regional karbonat > di Indonesia. Di bawah ini adalah abstraknya, semoga berguna. > > Mahasiswa tidak banyak yang hadir. Karena merasa ada yang kurang kalau saya > hanya mempresentasikan makalah saya kepada para profesional di workshop, maka > pada hari yang sama saya ke UGM dan mempresentasikan materi yang sama di > hadapan para mahasiswa tetapi dalam format penyampaian kepada mahasiswa. > Setelah itu, masih di UGM, saya melanjutkan mempresentasikan makalah > "Sandhyakala ning Jenggala dan Majapahit : Hipotesis Kebencanaan Geologi" – > kali ini jauh lebih tenang tak seperti saat mempresentasikan makalah ini di > PIT IAGI 2007 Bali yang mesti berpacu dengan waktu yang terbatas. Waktu yang > terbatas atau terburu2 akan menyulitkan pendengar mencerna materi yang > disampaikan. Sebagai informasi, hipotesis ini telah "ditangkap" National > Geographic Channel untuk menjadi tayangan (pengambilan gambar sudah > dilalukan) di dalam film dokumenter "LUSI". > > Demikian, laporan singkat. > awang – Grand Mercure – 24/4/2008, 02.15 > > LAMPIRAN > > Geologic Controls on Carbonate Reservoirs in Indonesia : > Regional Overview > > Awang Harun Satyana > > (BPMIGAS) > > Carbonate reservoirs are characterized by extreme heterogeneity of porosity > and permeability. This is related to the complexities of the original > depositional environment and the diagenetic influences that can modify the > original textures. Wide variety of environmental facies and diagenetic > changes express controls of geologic factors. Therefore, in characterizing > carbonate reservoirs, it is important to evaluate geologic controls which > influence carbonate sedimentation and diagenesis. > > Being located at warm humid tropical shallow water, in Indonesia carbonates > are geographically and temporally widespread. They occur in a range of ages > and depositional settings which were often affected by coeval tectonism, > siliciclastic input or volcanism. The carbonates developed in various > tectonic settings of back-arc, intra-arc, fore-arc, and foreland basins; > island arc; micro-continents; and continental passive margins. They developed > as patch reefs of land-attached platform such as Baturaja buildups in South > Sumatra and West Java, fringing reefs such as Kais buildups on Arar High, the > Bird's Head of Papua, barrier reefs such as Ujung Pangkah reefs in East Java, > and pinnacle reefs overlying offshore isolated platforms such as reefs of the > Cepu High, East Java and Arun reefs in North Sumatra. In each a variety of > carbonate depositional systems, the reefs often developed on structural > highs. Subsidence, uplift, active faulting, tilting or associated > silici/volcaniclastic input strongly affected facies variability, > stratal/platform geometries, sequence development and carbonate termination. > These geologic factors influence distribution and continuity of the carbonate > reservoirs. > > Ages of carbonates influence the basic ingredients of carbonates. Diversity, > abundance, dominant mineralogy, and relative importance of sediment-producing > marine invertebrates are various through the geologic periods. This will > influence the response of carbonates when they are changed by diagenesis. > Producing carbonate reservoirs in Indonesia range in ages from the Jurassic > Manusela fractured oolitic carbonates in Seram Island, Eastern Indonesia to > Pliocene globigerinid limestones of the Madura Strait. Paleogene carbonates > in Indonesia are commonly dominated by larger foraminifera. These carbonates > typically form large-scale platforms or isolated shoals. Good poroperms can > be preserved in shoal or redeposited carbonates lacking micrite. Secondary > porosities developed due to fracturing, chemical dissolution during burial, > or as karstic cavities. However, the opportunities for leaching were limited. > Neogene carbonates often contain abundant aragonitic bioclasts, such as > corals. They typically develop as reefal buildups, shelfal deposits or as > isolated platforms. Compared with Paleogene carbonates, poroperms are > generally higher in Neogene carbonates, various porosities all occur. The > most important, common and economic carbonate reservoirs in Indonesia are the > Miocene buildups such as Arun in North Sumatra, Baturaja in South Sumatra and > West Java, Kujung I or Prupuh in East Java, and Kais in Salawati, Papua. > > Petrographic studies of carbonate reservoirs in Indonesia have shown that > they have been subjected to a number of diagenetic processes including > compaction (stylolization), dissolution, cementation, neomorphism, > silicification, dolomitization and fracturing. Most of these processes are > common to all depositional facies types (reefal, near reef, shallow shelf and > outer shelf open marine). Original particle types of the sediments inherited > from the deposition play an important role in this respect. Interconnected > corallites commonly suffer dissolution resulting in porosities. Neomorphism > is especially common in micritic carbonates reducing their porosities. > Dolomitization has a varied distribution and in many cases is associated with > clay minerals. It may affect reservoir poroperms and be a factor in > generation of undesirable non-hydrocarbon gases. Stylolization and > silicification are localized features. Study of sequence of diagenetic events > is important for knowing the > preservation or occlusion of porosities. > > An understanding of the geologic controls on carbonate depositional > environments, spatial and temporal facies distributions and controls on > deposition and diagenesis is essential in order to characterize carbonate > reservoirs and to evaluate their considerable economic potential.*** > > > --------------------------------- > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it > now. -- Mohammad Syaiful - Explorationist, Consultant Geologist Mobile: 62-812-9372808 Email: [EMAIL PROTECTED] Technical Manager of Exploration Think Tank Indonesia (ETTI) -------------------------------------------------------------------------------- PIT IAGI KE-37 (BANDUNG) * acara utama: 27-28 Agustus 2008 * penerimaan abstrak: kemarin2 s/d 30 April 2008 * pengumuman penerimaan abstrak: 15 Mei 2008 * batas akhir penerimaan makalah lengkap: 15 Juli 2008 * abstrak / makalah dikirimkan ke: www.grdc.esdm.go.id/aplod username: iagi2008 password: masukdanaplod -------------------------------------------------------------------------------- PEMILU KETUA UMUM IAGI 2008-2011: * pendaftaran calon ketua: 13 Pebruari - 6 Juni 2008 * penghitungan suara: waktu PIT IAGI Ke-37 di Bandung AYO, CALONKAN DIRI ANDA SEKARANG JUGA!!! ----------------------------------------------------------------------------- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id Visit IAGI Website: http://iagi.or.id Pembayaran iuran anggota ditujukan ke: Bank Mandiri Cab. 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