利用Walkaround VSP预测井周围裂缝发育带的方法探索  

Research on the methods of predicting fracture development zone around well by Walkaround VSP

作　　者：王成礼[1,2] 牟风明 何惺华 张庆红[4] 樊杨栓 WANG Chengli;MOU Fengming;HE Xinghua;ZHANG Qinghong;FAN Yangshuan(Shengli Branch Co.of Petroleum Engineering Geophysical Co.,SINOPEC,Dongying Shandong 257100,China;Shanghai Jindi Software Development Co.,Ltd.,Shanghai 200082,China;Geophysical Research Institute of Shengli Oilfield Branch Co.,Dongying Shandong 257022,China;Bureau of Geophysical Prospecting INC.,CNPC,Zhuozhou Hebei 072751,China)

机构地区：[1]中国石化地球物理公司胜利分公司,山东东营257100 [2]上海锦迪软件开发有限公司,上海200082 [3]胜利油田分公司物探研究院,山东东营257022 [4]中国石油东方地球物理勘探有限责任公司,河北涿州072751

出　　处：《油气地球物理》2018年第2期9-12,共4页Petroleum Geophysics

摘　　要：Walkaround VSP是一种炮点在井周围等井源距、等炮检距的一种观测方法,利用其资料可以研究井周围的裂缝发育情况。研究了Walkaround VSP处理流程及技术,在动校正道集上对反射点进行了水平位移校正,进一步拾取了目的层反射,计算底、顶能量比,得到了能量比平面分布图,预测了井周围裂缝发育带。The Walkaround VSP is an observation method which the shots are around the well with equivalent offset distances and equivalent shot-to-geophone distances,the development of the fracture around the well can be research by using the VSP data.The processing flow and technology of the Walkaround VSP are researched,the reflection points are corrected in horizontal displacement on the gathers of the NMO correction,the reflection from the target layer are picked up and the energy ratio of the top and bottom are further calculated,the plane distribution diagram of the energy ratio is obtained,the development zones of the fracture around the wells are predicted.

关 键 词：Walkaround VSP 井周围 裂缝预测 

分 类 号：P631.443[天文地球—地质矿产勘探]