| 基于单只检波器接收的地震资料高精度成像在水平井部署中的应用 |
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| 引用本文： | 王金伟.基于单只检波器接收的地震资料高精度成像在水平井部署中的应用[J].地球物理学进展,2020(4):1459-1464. |
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| 作者姓名： | 王金伟 |
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| 作者单位： | 大庆油田有限责任公司勘探开发研究院 |
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| 基金项目： | 中国石油天然气股份公司重大科技专项“大庆探区非常规油气勘探开发关键技术研究与现场试验”(2012E-2603-04)资助。 |
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| 摘 要： | 松辽盆地北部扶余油层发育典型的致密砂岩油储层,需要通过水平井提产增效,提高动用率.但由于该区扶余油层单砂体薄、横向变化快、纵向上多层叠置,地震响应特征异常复杂,给水平井位部署带来了很大困扰.基于单只检波器接收的地震资料能很好的解决这个问题,但其频带具有"宽进宽出"的特点,除了精确记录有效反射波信号外,也完整保留了其他各种干扰波波场信息,采集地震资料信噪比较低.本文采用LNS面波衰减技术消除单只检波器接收地震资料中的面波噪声干扰,利用结合稳相的补偿介质吸收的叠前时间偏移方法压制偏移过程中的补偿噪声,拓宽成像资料频带23 Hz、处理成果成像精度得到明显提高,河道砂体识别准确,在YL工区部署的水平井已钻井都见到了非常好的效果,提高了钻井成功率.
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| 关 键 词： | 单只检波器接收 QPSTM LNS面波衰减技术 河道砂岩 水平井 |
Application of high precision imaging of seismic data received by single geophonein horizontal well deployment |
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| WANG Jin-wei.Application of high precision imaging of seismic data received by single geophonein horizontal well deployment[J].Progress in Geophysics,2020(4):1459-1464. |
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| Authors: | WANG Jin-wei |
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| Institution: | (Exploration and Development Institute,Daqing Oilfield Company Limited,Daqing 163712,China) |
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| Abstract: | Fuyu reservoir in the north of Songliao basin is a typical tight sandstone reservoir.It is necessary to increase production efficiency and utilization rate by horizontal wells.However,due to the thin sand body,fast lateral change,vertically stacked in layers in Fuyu reservoir,the characteristics of seismic response are very complex,which bring a lot of trouble to the deployment of horizontal wells.Therefore,higher requirements are put forward for the signal-to-noise ratio,resolution and imaging accuracy of seismic data.This problem can be well solved by the small bin and wide azimuth seismic data received by a single geophone.But its"broad in and broad out"features not only accurately record the effective reflected wave signal,but also completely preserve other interference wavefield.In this paper,based on the LNS ground wave suppression technology is used to eliminate the interference of ground wave and strong noise.An approach by incorporation stationary-phase implementation into deabsorption prestack time migration suppresses the compensation noise in the migration process,broaden the imaging data frequency band 23 Hz,which improves the fidelity and resolution of the seismic data.The recognition of channel sand body from single point receiving seismic data is accurate.The horizontal wells deployed in YL survey have been drilled with very good results,which improves the success drilled rate. |
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| Keywords: | Single geophone receiving QPSTM LNS ground wave suppression technology Channel sand body Horizontal well |
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