摘要
应用三维地震资料设计水平井的轨迹,用人工合成记录标定层位和岩性并进行精细的构造解释和储层横向预测,对测区速度场进行研究,利用Geoquest 人机联作解释系统编绘层拉平图、转弯测线剖面图,不整合面构造图,各套油层顶面构造图,沿地层倾向设计水平井的轨迹.经两口井钻探,钻遇不整合面的误差0.19%—0.39%,一口井平均钻遇油层204m,相当9口直井的效益.用地震资料设计巷道水平井的关键是油层标定、深度标定和确定油层走向,用人机联作系统绘制水平切片图、反射波振幅图、油层顶构造图,设计了在油层内钻探的巷道井.经钻探,钻遇不整合面的误差0.07%,在真厚度8.23m 的油层内钻进563m.
The path of horizontal well is designed by using 3D seismic data.Stratigraphy and lithology areidentificated by synthetic seismogram.The flattened map,steering profile map.Structure map of theunconformity interface and the top of oil layers are drawn by using“Geoquest”interactive interpretationsystem,so that the structure elucidation accuracy and velocity exploration(research)are completed.Thetechnique keys to design the horizontal well along the trend of the oil layer are strat(?)graphic division depthidentification and oil layer division.Results of exploration of two horizontal well show that the accuracydrilled to unconformity is 0.19—0.39%,and the average thickness of oil layer drilled is 204 m,so the effi-ciency is equivalent to nine vertical well.The keys to design horizontal lane well along the strike are oil layer division,depth identification anddeterminating the strike of oil layer.The slice map,amplitude map of reflection wave and structure map ofthe top of oil horizon are drawn by use of interactive interpretion system,so as the horizontal lane well in asingle oil layer have been designed.Result of exploration shows that the accuracy of drilled unconformity interface is 0.07%,and the hor-izontal distance drilled in oil layer is 563 m whose true thickness is only 8.23 m.
出处
《地球物理学进展》
CSCD
1993年第3期122-131,共10页
Progress in Geophysics
关键词
采油井
水平井
轨迹曲线
地震数据
设计
The target point of horizontal well
Horizontal length
The path log of horizontal well
Horizontal lane well
