收稿日期: 2009-05-27
修回日期: 2009-08-12
网络出版日期: 2010-04-10
基金资助
中国石油天然气股份有限公司重大科技项目“柴达木盆地油气勘探开发关键技术研究”子课题“柴西地区富油气凹陷圈闭精细评价及钻探目标选择”（编号：07-01Z-01-02）；中国石油股份公司探区重大预探领域与目标选择研究项目子课题“柴达木盆地西南地区石油地质综合研究及有利区带评价与风险目标优选”（编号：2008D-0707-03）联合资助.
Methods and Techniques of Lithological Reservoir Exploration in Southwestern Qaidam Basin
Received date: 2009-05-27
Revised date: 2009-08-12
Online published: 2010-04-10
柴达木盆地西南区(柴西南)剩余油气资源量巨大，过去勘探思路主要以寻找构造油藏为主，岩性油气藏为辅。近几年来在“围绕富烃凹陷，主攻斜坡区带，寻找新的层系，力争叠合连片”的岩性油气藏勘探思路的指导下，主攻岩性油气藏勘探，在柴西南红柳泉斜坡及乌南斜坡的岩性油气藏勘探均获得突破，跃进斜坡也发现了规模较大的特殊岩性储集体。由于勘探程度和认识上的制约，柴西南的岩性油气藏勘探还处于探索阶段，还没有形成一套成熟有效的技术方法。利用柴西南岩性油气藏勘探实践成果，结合其他盆地的成功经验，总结了一套适合柴西南岩性油气藏勘探的技术方法。这些关键技术主要包括：老井复查评价技术、层序地层划分技术、沉积体系划分技术、储层综合预测技术。综合运用这些技术方法在柴西南的岩性油气藏勘探中已经取得了良好的勘探效果，多口钻井获得工业油气流。
曹正林, 孙秀建, 张小军, 石亚军, 刘应如, 乐幸福 . 柴达木盆地西南区岩性油气藏勘探方法与技术[J]. 天然气地球科学, 2010 , 21(2) : 224 -229,309 . DOI: 10.11764/j.issn.1672-1926.2010.02.224
There is abundant remaining petroleum in the southwestern Qaidam basin.In the past, more attention was paid to find structural reservoir than lithologic reservoir.In recent years, under the guidance of exploration methods of lithological reservoirs, that is hydrocarbon enriched in depression, accumulated in slope zones, petroleum bearing new layer searched, and superposition continuity explored, the breakthrough of petroleum exploration in Hongliuquan slope and Wunan slope of southwestern Qaidam basin was gotten.The discovery of large scale special lithologic reservoir in Yuejin slope was done.Since the low degree of exploration and limited know about lithological reservoir, the exploration of lithologic reservoirs in the southwestern Qaidam basin is still on exploratory stage, and a set of mature and effective methods are not formed yet.Based on exploration achievement of lithologic reservoirs in Qaidam basin, a set of methods fitting for lithologic exploration in the Qaidam basin was gotten, in combination with successful exploration experiences in other basins.These main methods included re examination of old wells, classification of sequence stratigraphy, division of sediment system and integrated reservoirs prediction.Good petroleum exploration in Qaidam basin was gotten by these integrated methods with industrial flow for many wells.
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