勘探评价开发阶段地震技术应用关键问题分析.PDF

中 国 石 油 勘 探 第21卷　第6期 CHINA PETROLEUM EXPLORATION 2016年11月 DOI: 10.3969/j.issn.1672-7703.2016.06.002 勘探、评价、开发阶段地震技术应用关键问题分析 龙昱光 张　研 董世泰 （中国石油勘探开发研究院） 摘 要：地震技术作为解决油气勘探难题的核心技术，正在逐步向评价、开发阶段延伸。由于油气勘探、评价、 开发阶段的地质任务、认识及资料基础不同，对地震技术需求不同，需要对不同阶段地震技术应用的关键问题进行梳 理，达到提高技术应用针对性的目的。在勘探阶段，领域资料、区带资料、目标资料与地质认识基础薄弱，地震技术 是不可或缺的手段。在评价阶段，约束条件比较明确，地震技术描述对象重点转移到有利岩性、储层物性、含油气性 方面，精度要求远高于勘探阶段。在开发阶段，地震技术应用重点是描述储层及油藏的细节特征，地质家对地震技术 依赖程度有所降低，但地震技术仍有较大的应用空间。 关键词：油气藏；评价开发；地震技术应用；关键问题 中图分类号：P631.4　　　　　文献标识码：A Key issues in application of seismic technology in petroleum exploration, appraisal and development stages Long Yuguang, Zhang Yan, Dong Shitai (PetroChina Research Institute of Petroleum Exploration and Development) Abstract: Seismic technology is the core for petroleum exploration, and it is gradually extended to petroleum appraisal and development stages. In the petroleum exploration, appraisal and development stages, when the geologic tasks, understandings and available data are different, the requirements for seismic technology are varying. Accordingly, it is necessary to clarify key issues in application of seismic technology during different stages, so as to ensure the appropriateness of the technology. During the exploration stage with limited data available for the concerned area, prospects, specific target and geologic conditions, seismic technology is indispensible. During the appraisal stage with clarified constraints, seismic technology may be deployed to determine favorable lithologies, reservoir properties and oil/gas-bearing potential, with much higher accuracy required than that in the exploratio