准噶尔盆地南缘复杂构造地震资料处理解释攻关及效果  

Seismic Data Processing and Interpretation of Complex Structures on Southern Edge of Junggar Basin

作　　者：邓勇[1,2] 吕焕通[3] 于宝利 温铁民 吴建学 岳前进 

机构地区：[1]中国石油大学,山东省东营市257061 [2]中国石油东方地球物理公司研究院,河北省涿州市072750 [3]中国石油新疆油田公司,新疆克拉玛依市834000

出　　处：《中国石油勘探》2011年第5期19-24,171,共6页China Petroleum Exploration

基　　金：中国石油天然气股份有限公司物探技术攻关项目“准噶尔盆地南缘古牧地背斜三维叠前深度偏移处理、有利构造与圈闭精细研究”(GFGG2010-05)

摘　　要：准噶尔盆地南缘是该盆地内构造最复杂的区域。一直以来,高陡构造区的地震成像问题是南缘油气勘探的一个瓶颈。通过对南缘古牧地地区新、老两块三维开展叠前深度偏移连片处理解释,探索出一套适用于高陡构造的处理解释配套技术。围绕地震成像精度,处理上优选适用于攻关区的静校正技术、叠前保幅去噪技术、一致性处理技术、叠前深度偏移技术等针对性技术措施,解释上综合运用各种信息进行合理构造建模及精细速度建模。通过一体化攻关,攻关区断裂带资料空白区成像质量明显提高,地层结构更加清楚,"南北分带、纵向分层"的地质结构特征更加明朗,明确了勘探主攻方向和目标。The southern edge is the most complex area within Junggar Basin. Seismic imaging in high and steep structures has always been a bottleneck of exploration for oil and gas in southern edge. A set of techniques for processing and interpretation suitable for high and steep structures have been developed, based on new and old 3D multiline stack depth migration processing and interpretation of Gumudi area on southern edge of Junggar Basin. The static correction technique, the prestack amplitude preservation and denoising technique, the consistency processing technique, the prestack depth migration processing technique and other technical means have been adopted to improve imaging accuracy in processing, and then all kinds of information have been applied to rational structure modeling and fine velocity modeling in terms of interpretation. Through integrated research, the image of faulted zone has been improved a lot, and the structure of formations has been more clarified. The geological structure of 'north-south zonation and vertical stratification'has got more rationalized; main orientation and targets of exploration has been clear.

关 键 词：准噶尔盆地南缘 古牧地 叠前深度偏移 构造建模 地质结构 

分 类 号：P631.4[天文地球—地质矿产勘探]