泌阳凹陷王集地区高精度三维地震资料连片处理技术  

Study on high precision 3D seismic data merging processing in Wanji area of Biyang sag

作　　者：段洪有[1] 蒲春志[1] 张高成[1] 金春红[1] 

机构地区：[1]中国石化河南油田分公司石油物探技术研究院,河南南阳473132

出　　处：《石油地质与工程》2011年第6期38-41,6,共4页Petroleum Geology and Engineering

摘　　要：泌阳凹陷王集地区以往处理的剖面是分块单独处理的,存在边界效应,整体感不强;部分区块老剖面浅层小断层、断点不太干脆,不整合关系不够清楚,核三下段的地震资料品质较差,信噪比低,深层断层反映不清楚。在连片处理中采用浮动基准面来进行校正量计算,可以有效保留近偏移距和浅层不整合面反射;在叠前能量调整技术方面做了一些研究,使叠前时间偏移划弧问题得到一定改善;同时多块资料连片处理,消除了边界效应,整体感得到明显的提高,最终剖面断面成像清晰,断点位置准确,波组特征清楚,能识别沉积体系。The previous method for seismic data processing is conducted separately, which was proved to have disadvantages such as boundary effect, weak sense of wholeness, unclear fault points and unconformity relationship, low SNR, etc. While by adopting the floating datum to carry out static correction in merging processing, the near offset and unconformity reflection can be preserved. Through the research on pre-stack energy adjustment, the efficiency of arc problem in pre-stack time migration has been improved. In addition, all the problems occurred in separate processing have been solved. The boundary effect has been eliminated, the sense of wholeness has been obviously enhanced, the fault points and wave group characteristics become clear, all of which make it easier to identify the depositional systems.

关 键 词：连片处理 全三维锥体滤波 静校正 能量调整 

分 类 号：P631.443[天文地球—地质矿产勘探]