四川盆地中部高石梯地区柱状下拉异常体分布特征及成因

发布时间：2018-01-08 06:20

本文关键词：四川盆地中部高石梯地区柱状下拉异常体分布特征及成因　出处：《石油勘探与开发》2017年03期 　论文类型：期刊论文

【摘要】：以四川盆地中部高石梯地区为研究对象,通过对地震资料进行逆时偏移重新处理并结合高精度相干分析,对地震剖面上柱状下拉异常体的分布特征及成因进行分析。研究发现柱状下拉异常体在高石梯地区广泛分布,研究认为其是在走滑拉分形成的微型地堑的基础上,经多期热液活动的长期改造而形成的热液通道。以灯影组储集层为例,通过地震、地质联合分析,证实热液活动以溶蚀作用为主,对碳酸盐岩储集层进行了持续的建设性改造,进而提出热液通道和裂缝发育带是储集层发育的有利区。热液通道的发现对落实高产井位、扩大勘探领域具有一定指导意义。
[Abstract]:Taking the Gaoshiti area in the central Sichuan Basin as the research object, the inverse time migration of seismic data is reprocessed and the high-precision coherence analysis is combined. The distribution characteristics and causes of columnar pull-down anomaly on seismic profile are analyzed. It is found that the columnar pull-down anomaly is widely distributed in Gaoshi area. It is considered that it is based on the micro graben formed by strike-slip drawing, and formed by the long-term transformation of multi-stage hydrothermal activity. Taking the reservoir of Dengying formation as an example, the seismic and geological joint analysis is carried out. It is proved that the hydrothermal activity is dominated by dissolution and the carbonate reservoir has been continuously and constructively reformed. It is pointed out that hydrothermal channel and fracture development zone are favorable areas for reservoir development, and the discovery of hydrothermal channel is of certain guiding significance for the implementation of high-yield well location and the expansion of exploration field.
【作者单位】：中国石油集团东方地球物理勘探有限责任公司;
【基金】：中国石油天然气集团公司重大科技专项“深层油气田勘探开发关键技术研究”(2014E-3204);中国石油天然气集团公司科学研究与技术开发项目“大型地震处理解释软件平台开发与集成”(2016E-1004)
【分类号】：P618.13;P631.4
【正文快照】： 引用:杨平,丁博钊,范畅,等.四川盆地中部高石梯地区柱状下拉异常体分布特征及成因[J].石油勘探与开发,2017,44(3):370-379.YANG Ping,DING Bozhao,FAN Chang,et al.Distribution pattern and origin of the columnar pull-down anomalies in GaoshitiBlock of Central Sichuan

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