测井约束反演技术在老河口油田老163井区的应用

Application of Jason Logging Constrained Inversionin the Old 163 Well Field of Laohekou Oilfield

针对老河口油田老163井区新近系河流相油气藏储层纵横向变化大、油气聚集复杂、常规地震解释精度低的问题，利用Jason测井约束反演技术对该地区馆上段储层进行了地震处理及砂体描述。通过地震资料反演前预处理、测井资料标准化校正、合成记录标定层位，GOCAD建模弥补Jason建立初始模型功能的不足，提高了该地区地震解释的精度。结果显示，反演可以识别3～6m的储集层，解决了砂体薄互层识别难的问题，获得了比较好的勘探及开发效果。

In view of great vertical and horizontal changes of oil-gas reservoir of Tertiary fluvial facies in old 163 well field of Laohekou oilfield, complex and aggregated oil-gas reservoir and the characteristics of low precision interpretation of common seismicity, Jason logging constrained inversion is used in the seismic processing and sandbody description in the upper reservoir of this region. This technology can improve the seismic interpretation precision in this area by pre-processing of seismic reservoir, standardized adjustment of bore log and demarcation position overcom the shortcomings of Jason＇s initial model by GOCAD. The results show that it can recognize reservoirs within 3 to 6 m, solve the difficult problem of the thin-bedded alternation sandbody identification and receive better exploration and development efficiency.