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首页> 外文会议>Indonesian Petroleum Association Convention and Exhibition >SURFACE DATA RE-EVALUATION, EOCENE SOURCE ROCK POTENTIAL AND HYDROCARBON SEEPAGE, AND EOCENE SAND RESERVOIR PROSPECTIVITY IN WEST SANGATTA, NORTHERN KUTAI BASIN
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SURFACE DATA RE-EVALUATION, EOCENE SOURCE ROCK POTENTIAL AND HYDROCARBON SEEPAGE, AND EOCENE SAND RESERVOIR PROSPECTIVITY IN WEST SANGATTA, NORTHERN KUTAI BASIN

机译：地表数据重新评估，何南育南南萨拉泰盆地西萨塔河中苏州源岩势和碳氢化合物渗流，虫砂储层渗透率

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The Northern Kutai Basin has been considered lacking hydrocarbon prospectivity when it’s compared to the Southern Kutai Ba sin or the Eastern Kutai Basin where many Neogene reservoir rocks has high h ydrocarbons productivity. The Kutai Basin’s sediments are older toward northern and western boundary of the Basin which is the Paleogene sediment was cropping out. In December 1990, LASMO RUNTU Ltd acquired 12,880 km square kilometers of b lock in the northern part of the Kutai Basin. Hydrocarbon seeps observed from Eocene and Oligocene sections imply active petroleum system within the Eocene of Beriun Formation. Primary target of those exploratory wells was th e Middle - Upper Eocene Beriun Formation deltaic sands. In 2009, 19 lines of the new recording 2D seismic survey were shot by Kalimantan Kutai Energy PSC to provide modern data within the West Sangatta Block, Northern Kutai Basin. Those new seismic acquisition surveys hopefully will improve the geological interpretation of all existing data. Incorporation of s urface and near surface geological information is obtained from surface geological mapping and shot-holes mudlog (geoseis) survey. This paper tries to re-ev aluate the Eocene sourc e rock and hy drocarbon potential from surface rock s (outcrops), near surface (geoseis) and hydrocarbon seepages. The surfa ce Eocene facies in study area were divided into four main units, i.e., Late Eocene Middle Shelf, Late Eocene Coaly Brackish, Late Eocene Brackish, and L ate Eocene Fluvial. The analytical methods used in this work are Total Organic Carbon (TOC), pyrolysis Rock Eval, standard gravitational column chromatography for hydrocarbon fractionation, Gas Chromatograph (GC), and Gas Chromatography Mass Spectrometry (GCMS) for gas co mposition and fingerprint analysis. The second objective is to re- evaluate the Eocene reservoir quality of the rock surface samples, brief provenance analysis of their source sediment, visual porosity and possible depositional environment. The source r ocks potential are fro m Late Eocene Coaly Brackish facies. Mostly samples were dominated by vitrinite maceral, which is formed by fibrous and woody plant fragment and structureless colloids of hum ic matter. Kerogen type analy sis result of organic matter type and thermal maturity indicated mixed Type II and Type III, which are having similarities with subsurface samples at Middle Eocene that performed by previous study of LASMO’s exploration w ell. Meanwhile, two oil- seepages samples analysis indicated derived from two different type kerogens, containing mix organic matter Type I and terrestrial higher pla nts of Type II/III. The Late Eocene sandstone reservoirs as far as it has unique charact eristics, which has two distinct quality characters, first sandstone characterized by conglomerates facies of alluvial fans which have poor reservoir quality and the second type sandstones characterized by conglomeratic sandstone which are have more clean sandstone that associ ated with fluvial deltaic sandstone facies that have good porosity.
机译：北Kutai盆地被认为是缺乏碳氢化合物的前瞻性，而当南施泰群岛或东部库泰盆地的东部储层岩石高Hydrocarbons生产力时，它被认为是缺乏的碳氢化合物前景。 Kutai盆地的沉积物朝向北部和盆地的北部和西部边界是古代沉积物的裁剪。 1990年12月，拉伊莫鲁特利有限公司在Kutai盆地北部收购了12,880公里平方公里的B锁。从何群岛和寡烯部分观察的碳氢化合物渗透意味着Beriun形成的eocene内的活性石油系统。那些探索性井的主要目标是中上部猎物伯恩形成红砂。 2009年，19行新录音2D地震调查被卡莱恩库泰能源PSC拍摄，为北Kutai盆地北部西萨拉塔街区提供现代数据。那些新的地震收购调查有望改善所有现有数据的地质解释。从地面地质映射和射门静电（Geoseis）调查中获得了S URFace和近表面地质信息的纳入。本文试图从表面岩石（露头），近表面（Geoseis）和碳氢化合物渗流中重新推出eocene ourc E岩石和Hy Drocarbon潜力。研究区的Surfa Ce eocene相片分为四个主要单位，即，后期eocene中间架子，后期eocene cogy咸，晚期繁殖和l eocene河。本作工作中使用的分析方法是总有机碳（TOC），热解岩求解，用于烃分级，气相色谱仪（GC）和气相色谱质谱（GCMS）的标准重力柱色谱法用于气体COPosition和指纹分析。第二个目的是重新评估岩石表面样品的eocene储层质量，对其源沉积物，视觉孔隙度和可能的沉积环境的短暂出现分析。源r ocks潜力是m晚期eocene cogy rackshish相形。大多数样本由vitriinite丙片支配，它由纤维和木质植物片段和嗡嗡声的无结构胶体形成。 Kerogen型分析有机质类型和热成熟度的结果表明II型和III型，其在中期eocene中具有相似性，通过先前的Lasmo勘探W eLL进行。同时，两种含有两种不同型Kerogens的样品分析，含有二种不同型Kerogens，II / III型的混合物有机质I型和陆地高PLA NT。已故的鸡砂石水库，就拥有了独特的挑战，具有两个不同的质量特征，首次砂岩，其特征在于冲积风扇的集团相片，具有较差的储层质量和具有更多洁净砂岩的砂岩，其特征在于具有更清洁的砂岩的第二种砂岩。该关联与河流的砂岩相伴有良好的孔隙率。

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