基于小层约束地震反演技术在T油田的应用

为了实现地震储层预测技术向油田开发领域的延伸,了解储层展布体系,提出了基于开发小层的储层精细地震反演技术。首先利用高分辨率层序地层学理论指导小层划分,确保地层格架的等时性和合理性。在此基础上以开发小层为约束,以测井资料为出发点,根据地震响应的趋势进行波阻抗反演,预测储层展布规律。在T油田的应用证明,基于小层约束的地震反演能够提高地震资料的纵向分辨能力,有效提高储层预测的精度,可更加清楚地揭示小层内储层的分布特征,为油藏评价、油田开发方案编制和实施提供翔实的基础资料。

Application of thin-layer constrained seismic inversion technique in T Oilfield

This paper puts forward a fine seismic inversion technique with the thin layer as a constraint to build up the connection between seismic reservoir prediction and oilfield development and construct a reasonable reservoir exhibition system for oilfield development.The approach of thin-layer constrained seismic inversion included two parts.The first is thin-layer classification and correlation under the guidance of high resolution sequence stratigraphy,in order to ensure the formation is isochronal and reasonable.Secondly,with the thin layer as a constraint,logging data as the starting point and according to the trend of seismic data,seismic inversion be carried out for reservoir prediction.The application of thin-layer constrained seismic inversion technique in T oil field verifies that it can make good use of advantages of both seismic and well data and construct an effective reservoir exhibition system for thin layer,be favorable to reservoir evaluation and further reservoir exploration and production.