塔里木盆地寒武系—奥陶系白云岩潜山勘探新发现与勘探意义

发布时间：2018-04-14 06:38

本文选题：塔里木盆地 + 寒武系—奥陶系　；参考：《中国石油勘探》2017年03期

【摘要】：塔里木盆地寒武系—奥陶系白云岩潜山油气勘探自1989年塔中1井获得突破以后,围绕白云岩潜山开展了持续探索,除塔北隆起北部牙哈—英买力寒武系白云岩潜山取得良好勘探开发效果外,塔中隆起—巴楚隆起仅发现了塔中1和山1两个出油气井点,区域上展开勘探全部失利,20多年来塔中隆起—巴楚隆起寒武系—奥陶系白云岩潜山勘探基本处于停滞。2016年通过重新认识构造模型和重新开展油气成藏条件分析,在麦盖提斜坡和塔中隆起东部优选了罗斯2、中古58两个白云岩潜山勘探目标进行钻探,均获得高产工业油气流,实现了白云岩潜山勘探的新发现,揭示了台盆区寒武系—奥陶系白云岩潜山领域具有重要勘探价值。通过重新开展二维、三维地震资料解释处理,落实了塔中隆起东部、罗南—鸟山构造带、玛东构造带三大白云岩潜山分布区,有利区带面积达1600km~2。白云岩潜山油气藏具有埋藏相对较浅(3500~5500m)、勘探效益好等特点,具有较大的勘探潜力。
[Abstract]:The Cambrian-Ordovician dolomite buried-hill oil and gas exploration in Tarim Basin has been continuously explored around dolomite buried-hill since the breakthrough of well Tazhong 1 in 1989.Except for the good exploration and development effect obtained in the buried hill of the Yah-Yingmai Cambrian dolomite in the northern part of the Tarim uplift, only two oil and gas production wells, Tazhong 1 and Shan1, have been found in the Tazhong uplift and Bachu uplift.The exploration of Cambrian-Ordovician dolomite buried hill in Tazhong uplift, Bachu uplift and Ordovician dolomite buried hill has been at a standstill for more than 20 years.In the eastern part of Maigeti slope and Tazhong uplift, two exploration targets, Roz 2 and Zhonggu 58, were selected for drilling. Both of them obtained high-yield industrial oil flow and realized the new discovery of dolomite buried hill exploration.It is revealed that the buried hill area of Cambrian-Ordovician dolomite in Taiwan basin area has important exploration value.By redeveloping the interpretation and processing of 2D and 3D seismic data, the three major dolomite buried hill distribution areas in the eastern part of the Tazhong uplift, the Luo Nan-Yaoshan structural belt and the Madong structural belt have been carried out, with an area of 1 600 km2.The buried dolomite buried hill reservoir has the characteristics of relatively shallow buried area of 3500m ~ (5500) m ~ (-1), good exploration benefit and so on, and has great exploration potential.
【作者单位】：中国石油塔里木油田公司勘探开发研究院;
【基金】：国家科技重大专项“大型油气田及煤层气开发”(2016ZX05004-004)
【分类号】：P618.13

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