基于地震数据体的水平井实时导向系统
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摘要
传统的地质导向方法仅利用钻井过程中得到的实时地质数据,忽略了前期地震勘探中得到的地层信息。提出并实现了一种运行在Windows操作系统下的基于地震数据体的水平井实时导向系统。该系统在导向过程中同步采集、处理、传输井场的LWD/MWD数据,综合录井等随钻数据,同时将井眼轨迹、综合录井曲线、电测曲线实时投射到地震剖面上,实现实时钻井地震数据体模拟。这些叠加实时曲线的地震剖面给钻井人员提供钻头当前位置以及钻头周围空间的地层信息,为钻头钻探方向提供了决策参考。这种导向模式首次将地震数据的岩层地球物理信息用于水平井导向定位,弥补了地质导向的不足。该方法已在水平井开采中得到应用,有效地提高了钻井效率。
Traditional geosteering methods use only the real-time geological data,ignoring the seismic data obtained before drilling.This paper presents and implements a real-time steering system of horizontal wells base don seismic data,which runs on Windows OS.This system acquires,processes,transmits the LWD /MWD data synchronously,and draws the hole trajectory,logging curve,electrical log curve onto the seismic section to achieve the real-time drilling simulation in seismic data volume.These seismic sections with real-time curve give geophysical information around the drill to engineers to decide the next step of drilling.This steering mode applies geophysical information contained in seismic data innovatively,and it makes up for lack of geosteering.This steering method has been used in the drilling of horizontal wells,and it has improved the drilling efficiency.
Traditional geosteering methods use only the real-time geological data,ignoring the seismic data obtained before drilling.This paper presents and implements a real-time steering system of horizontal wells base don seismic data,which runs on Windows OS.This system acquires,processes,transmits the LWD /MWD data synchronously,and draws the hole trajectory,logging curve,electrical log curve onto the seismic section to achieve the real-time drilling simulation in seismic data volume.These seismic sections with real-time curve give geophysical information around the drill to engineers to decide the next step of drilling.This steering mode applies geophysical information contained in seismic data innovatively,and it makes up for lack of geosteering.This steering method has been used in the drilling of horizontal wells,and it has improved the drilling efficiency.
引文
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[5]李捷,王辉,肖佃师,等.基于微机的三维地震资料可视化系统的数据格式及数据存取[J].大庆石油学院学报,2005,2(96):25-28.LI Jie,WANG Hui,XIAO Dianshi,et al.Form and access of data for the three-dimensional seismic visualized system based on computers[J].Journal of Daqing Petroleum In-stitute,2005,29(6):25-28.
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[7]刘岩松,衡万富,刘斌,等.水平井地质导向方法[J].石油钻采工艺,2007,2(9S0):4-6.LIU Yansong,HENG Wanfu,LIU Bing,et al.Discussion on geosteering methods of horizontal wells[J].Oil Drilling&Production Technology,2007,29(S0):4-6.
[2]刘岩松,衡万富,刘斌,等.水平井地质导向方法[J].石油钻采工艺,2007,2(9S0):4-6.LIU Yansong,HENG Wanfu,LIU Bin,et al.Discussion on geosteering methods of horizontal wells[J].Oil Drilling&Production Technology,2007,29(S0):4-6.
[3]洪天聪,陈普刚,丘学林,等.海上多道地震数据的解编和格式转换[J].热带海洋学报,2002,2(12):98-103.HONG Tiancong,CHEN Pugang,QIU Xuelin,et al.De-multiplex and format conversion of marine multichannel seismic data[J].Journal of Tropical Oceanography,2002,21(2):98-103.
[4]赵彬凌,李黔,高林,等.水平井综合录井地质导向系统及应用[J].钻采工艺,2008,3(16):45-46,97.ZHAO Binling,LI Qian,GAO Lin,et al.Geosteering system and its application in compound logging of horizontal wells[J].Drilling&Production Technology,2008,31(6):45-46,97.
[5]李捷,王辉,肖佃师,等.基于微机的三维地震资料可视化系统的数据格式及数据存取[J].大庆石油学院学报,2005,2(96):25-28.LI Jie,WANG Hui,XIAO Dianshi,et al.Form and access of data for the three-dimensional seismic visualized system based on computers[J].Journal of Daqing Petroleum In-stitute,2005,29(6):25-28.
[6]刘峰.POWER-V和PD-XCEED垂直导向钻井技术在渤海油田的应用[J].石油钻采工艺,2009,3(15):29-33.LIU Feng.Applicationof POWER-V and PD-XCEED steer-ing vertical drilling technique in Bohai Oil Field[J].Oil Drilling&Production Technology,2009,31(5):29-33.
[7]刘岩松,衡万富,刘斌,等.水平井地质导向方法[J].石油钻采工艺,2007,2(9S0):4-6.LIU Yansong,HENG Wanfu,LIU Bing,et al.Discussion on geosteering methods of horizontal wells[J].Oil Drilling&Production Technology,2007,29(S0):4-6.
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