井震结合精细刻画断层方法研究及应用

Study and Application of Fine Fault Interpretation by Integrating Well with Seismic Information

目前大庆长垣油田处于高含水开发阶段,剩余油的分布高度零散,寻找潜力、保持油田稳产越来越难。在开发形势迫切需要找准潜力油层的情况下,大庆长垣油田开展了井震结合精细构造描述技术的推广研究,用以指导油田的二次开发。在密井网条件下的杏六区开展了井震结合精细构造描述研究,形成了以"井断点引导"小断层解释、密井网约束三维速度场时深转换为特色的井震结合精细刻画断层方法,准确刻画了该区的断层形态和空间展布特征,指导部署了4口断层边部大斜度定向高效井,取得了成功经验,对油田的后续开发调整具有重要指导意义。

Daqing Changyuan Oilfield has entered high water-cut stage and the remaining oil distribution was highly scattered.It was more and more difficult for looking for potential force for oil development and stabilizing oil production in the oilfield.In the situation of urgent need of accurately locating the potential force,a technological study of fine description of structure was popularized by the integration of wells with seismic data in Daqing Changyuan Oilfield,it was used for guiding the secondary development.The study was conducted in Block Xing 6under the condition of dense well pattern,a fine description method of well integrated with seismic data was formed with the characteristics of time-depth conversion of 3Dvelocity field using sublayer interpretation with the guidance of fault point and constraining of dense well pattern,The fault shape and its spatial distribution are accurately described,it provides guidance for deploying 4efficient and high deviation wells and successful experience is obtained and it provides guidance for cones