岩性油气藏 ›› 2018, Vol. 30 ›› Issue (5): 74–81.doi: 10.12108/yxyqc.20180509

• 技术方法 • 上一篇    下一篇

柴西南地区岩性油藏地震评价关键技术方法

陈国文, 沈亚, 袁云超, 韩冰, 李艳明, 杨泰   

  1. 东方地球物理公司 研究院地质研究中心, 河北 涿州 072750
  • 收稿日期:2017-09-10 修回日期:2017-12-20 出版日期:2018-09-14 发布日期:2018-09-14
  • 第一作者:陈国文(1980-),男,硕士,高级工程师,主要从事地震资料解释与地质综合研究工作。地址:(736202)甘肃省敦煌市七里镇青海物探处敦煌分院。Email:chenguowen1@cnpc.com.cn。
  • 基金资助:
    中国石油天然气股份有限公司重大科技专项“柴达木盆地建设高原大油气田勘探开发关键技术研究与应用”子课题“柴达木盆地复杂油气藏地震配套技术研究”（编号：2016E-01）资助

Key techniques for seismic evaluation of lithologic reservoirs in southwestern Qaidam Basin

CHEN Guowen, SHEN Ya, YUAN Yunchao, HAN Bing, LI Yanming, YANG Tai   

  1. Geological Research Center, GRI, BGP Inc., CNPC, Zhuozhou 072750, Hebei, China
  • Received:2017-09-10 Revised:2017-12-20 Online:2018-09-14 Published:2018-09-14

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摘要： 柴西南地区剩余油气资源巨大，是岩性油藏勘探的重要领域，但由于岩性油藏勘探起步晚、其形成的地质背景和成藏关键因素研究不够深入，制约了岩性油藏勘探进展。近年来，围绕柴西南富烃生油凹陷，加强基础研究，整体认识，精细评价，深入系统开展岩性油藏形成的地质背景和岩性圈闭的识别等研究工作，充分利用柴西南大面积三维连片地震资料开展精细构造解释和精细储层预测，明确了扎哈泉为岩性油藏勘探的有利区带，圈定了有利相带和落实了优质砂体分布，并准确预测“甜点”分布区，发现和落实了柴达木盆地首个亿吨级岩性油藏规模储量区。通过扎哈泉岩性油藏勘探实践，探索形成一套适用于柴西南地区岩性油藏地震勘探评价思路和技术方法，对深化柴西南地区岩性油藏立体勘探具有指导作用。

关键词: 岩性油藏, 勘探思路, 地震评价技术, 柴西南地区

Abstract: With tremendous remaining oil and gas resources,the southwestern Qaidam Basin is an important area for the exploration of lithologic reservoirs. However,due to the late start of lithologic exploration,the studies on geological settings of hydrocarbon accumulation and the key hydrocarbon accumulation factors are not conducted thoroughly enough,which restricts the progress of lithologic exploration. This paper carried out the research works, such as the identification of geological settings and lithologic traps,comprehensively by enhancing the basic research,the overall understanding and the fine evaluation in recent years focusing on the rich hydrocarbongenerating depressions in western Qaidam Basin. 3D large-area contiguous seismic data from the southwestern Qaidam were used to carry out fine structural interpretation and reservoir prediction. Zhahaquan area was clearly identified as a favorable exploration zone,the favorable zones were delineated,the distribution of high-quality sand bodies were confirmed and the distribution of "sweet" was predicted accurately,and the first 100-millionton level lithologic reservoir reserve area was delineated and verified in Qaidam Basin. Based on the lithologic reservoir exploration practices in Zhahaquan area,a set of evaluation ideas and technical methods applicable for the lithologic reservoir exploration in southwestern Qaidam Basin was formed. This research plays an important guiding role in deepening the lithologic reservoir exploration in southwestern Qaidam Basin.

Key words: lithologic reservoir, exploration ideas, seismic evaluation technology, southwestern Qaidam Basin

中图分类号: 

  • P631.4
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