吉林大学学报(地球科学版) ›› 2016, Vol. 46 ›› Issue (1): 270-278.doi: 10.13278/j.cnki.jjuese.201601304
张新培1,2, 于雪峰3
Zhang Xinpei1,2, Yu Xuefeng3
摘要:
基于新采集处理的高精度叠前深度偏移资料,综合地震、地质、油藏信息细化描述潜山内幕构造,有效提高潜山界面和内幕断层解析的精度和可靠性。东胜堡潜山形态表现为北西南东向展布的背斜特征,发育北东向、北西向、近东西向三组断层,其中北东向断层为主干断层,断层间切割关系比较合理。依据变质岩潜山多种类型岩性的测井响应差异和微观储集空间特征,综合3700系列测井资料定性识别6大类岩性,建立优势岩性和有利储层测井识别综合图版,进一步完善太古宇变质岩孔隙-裂缝型储层测井评价技术。通过有机结合井眼的"硬数据"与地震的"软数据",从骨架岩石特征、储层流体等方面分析影响内幕反射特征的关键因素,针对性提取38种井旁地震属性,解析地震反射特征,寻找岩性-裂缝-地震反射-产能之间的匹配关系,优选能量属性,实现内幕有利储集体预测。结果表明,有利储集体发育具有一定的分段性,在潜山顶面以下50~300 m范围内最为发育,局部表现出不规则透镜体状,是东胜堡潜山油藏开发的有利潜力区。
中图分类号:
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