中国石化油藏地球物理技术进展与探讨

Progress and development directions of reservoir geophysics at SINOPEC

油藏地球物理技术被认为代表了21世纪地球物理技术的发展方向,与丰富的油藏生产动态资料信息联合,提高了地球物理对油藏描述的精度,对于提高油藏的储量动用程度和提高采收率具有重要的意义。我国油气地质构造条件复杂,岩性油气藏、深层超深层、深水及非常规油气勘探开发是当前及未来一个时期内的主要勘探开发方向。针对我国油气藏特点和老油田提高采收率的需求,总结了中石化近年来油藏地球物理技术研究的主要成果,包括以多尺度资料联合高精度成像、储层反演和油藏建模为核心的油藏描述技术,以油气藏流体监测为主的动态监测及分析技术,以随钻、微地震为主的工程优化技术。讨论了技术的发展方向,注重挖掘油田开发信息,井、震、动、模等一体化联合和大数据以及人工智能应用,攻关井中地震技术,研发解释、建模油藏工程一体化应用平台,发展随钻地震、微地震及动态监测技术,推动油藏地球物理技术的发展。

The application of reservoir geophysics to reservoir production can improve the accuracy of reservoir characterization,which is of great significance for improving the utilization of reserves and oil recovery.It is also the direction of development for geophysical technologies in the 21 st century.Due to the complicated geological and structural conditions in China,lithologic,deep and ultra deep,deep-water,and unconventional reservoirs have become the main focus of seismic exploration.In this paper,the technical progress achieved at SINOPEC with respect to reservoir geophysics has been summarized.This includes various achievements,such as joint high-precision imaging using multi-scale data,reservoir description based on reservoir inversion and modeling,dynamic monitoring and analysis of reservoirs mainly for fluid monitoring,and engineering optimization based on logging-while-drilling and microseismic measurements.This paper also illustrates the current development directions of reservoir geophysics,namely:①combining well data,seismic data,dynamic monitoring data,and reservoir modeling data;②applying big data and artificial intelligence techniques;③developing borehole seismic technologies;④developing an integrated platform for seismic interpretation and reservoir modeling;⑤developing while-drilling,microseismic,and dynamic monitoring techniques.