Kalau aku perhatiin dari present day topografinya sepertinya justru di sebelah utara mahakam akan banyak terdapat turbidit karena kalau dilihat strukturnya akan lebih banyak patahan di utara present day Mahakam Delta ini, ketimbang sebelah timurnya yg reltif "quite". Nah sebagai trigger (slope failure) tentunya fault ini dapat menjadi penyebab longsornya delta topset yg kaya akan source dan mungkin juga coarse sediment.
Jadi di utara Mahakam ini lebih bagus utk deepwater (turbidite) prospektivity ketimbang timurnya ... ya kah ?
RDP
From: KARTIKO-SAMODRO Ferdinandus <[EMAIL PROTECTED]>
..... dan shelf-edge barrier reef atau knoll reef tipe Kerendan yang gas-proven. Hanya companies belum ada yang bermain di kedua objektif ini, mereka masih demam deepwater objective, padahal, belum tentu wilayahnya ada turbidit sebagus di tegaklurus Delta Mahkam ke timur...
Pak Awang
kalau baca presentasi dari unocal pernah dikatakan bahwa source hc untuk turbidit adalah debris coal/organic yang dibawa pada saat low stands .... nah kalau sistem barrier reef source hcnya dari mana ...? apakah dari endapan marine dari deep waternya atau sama dengan debris yang dibawa waktu low stand...?
Regards
Ferdinandus Kartiko Samodro TOTAL E&P Indonesie Balikpapan DKS/TUN/G&G 0542- 533852
Awang Satyana <[EMAIL PROTECTED]> 01/03/2004 01:59 PM Please respond to iagi-net
To: [EMAIL PROTECTED]
cc:
Subject: Re: [iagi-net-l] Unocal Sees Success with Gehem-2 Well Offshore Indonesia
Sayangnya dan kelihatannya (paling tidak saat ini, yaitu saat belum fully-understood), yang terbaik dari deepwater Mahakam adalah yang tegak lurus dari Delta Mahakam ke arah timur, baik dari segi depositnya maupun petroleum charge-nya. Naik ke utara menuju Mangkalihat via Donggala-Papalang-Podi, atau naik ke selatan menuju Paternoster via Tanjung Aru, kondisi petroleum system tidak (belum diketahui ?) sebagus di Gehem-Gada-Gendalo-Ranggas areas. Tapi, makin naik ke utara, atau makin naik ke selatan, punya objektif yang tidak dipunyai Gehem-Ranggas areas, yaitu Eocene synrift tipe produktif Tanjung, dan shelf-edge barrier reef atau knoll reef tipe Kerendan yang gas-proven. Hanya companies belum ada yang bermain di kedua objektif ini, mereka masih demam deepwater objective, padahal, belum tentu wilayahnya ada turbidit sebagus di tegaklurus Delta Mahkam ke timur...
Salam, Awang
AL-AMIN Amir <[EMAIL PROTECTED]> wrote: wow!!! donggala??
============================= AMIR AL AMIN - DKS/OPG/WGO TOTAL E&P INDONESIE BALIKPAPAN 0542-533765 - 0811592902 =============================
"Rovicky Dwi Putrohari" 02/27/04 12:25 PM Please respond to iagi-net
To: [EMAIL PROTECTED] cc: Subject: [iagi-net-l] Unocal Sees Success with Gehem-2 Well Offshore Indonesia
Mahakam still not fully explored always has a chance. Congrat !
RDP ===== Unocal Sees Success with Gehem-2 Well Offshore Indonesia Wednesday, February 25, 2004
Unocal said its Unocal Ganal, Ltd. subsidiary has drilled a successful appraisal well at the Gehem field in the Ganal production sharing-contract (PSC) area offshore East Kalimantan, Indonesia.
"The Gehem-2 well results show the primary zone of interest to have a single gas column of greater than 550 feet (168 meters)," said David Stangor, president of Unocal Indonesia. "This single zone has the potential to contain up to 1.5 trillion cubic feet of recoverable gas."
A drillstem test (DST) of Gehem-2 flowed at a daily rate of 31.3 million cubic feet of gas and 1,917 barrels of condensate. The zone was perforated from 15,362 feet (4,682 meters) to 15,523 feet (4,731 meters) true vertical depth subsea. The DST had flowing tubing pressure of 6,545 pounds per square inch on a 32/64-inch choke. The test was constrained by test equipment capacity. The oil section was not tested.
The Gehem-2 well was drilled 300 feet (91 meters) downdip of Gehem-1 and encountered 240 feet (73 meters) of net gas pay in zones penetrated by Gehem-1. Beneath those zones, 55 feet (17 meters) of net oil pay was discovered in a single zone. Gehem-2 was drilled in 6,036 feet (1,840 meters) of water to a total vertical depth of 17,505 feet (5,335 meters). The well is located 1.8 miles (2.9 km) south of the Gehem-1 well in the Ganal PSC.
The next well to be drilled in Unocal's deepwater program offshore Indonesia is a deep test on the Gula structure, a large anticline immediately south of Gehem in the Ganal PSC. Following Gula, the company plans to drill Gehem-3 in the second quarter of 2004 to appraise the northwestern flank of the Gehem structure.
Unocal Ganal is operator of the Ganal PSC area and holds an 80-percent working interest. Eni-Ganal, Limited, a subsidiary of Eni, holds the remaining 20-percent working interest. Unocal said its Unocal Ganal, Ltd. subsidiary has drilled a successful appraisal well at the Gehem field in the Ganal production sharing-contract (PSC) area offshore East Kalimantan, Indonesia.
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