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观测系统优化技术在四川盆地M & L储气库地震勘探中的应用
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Abstract:
四川盆地M & L储气库部署区紧邻威远、泸州、长宁页岩气产区,具备良好的建库条件。在该区开展的三维地震勘探项目面临着高铁、县城、自然保护区和风景区等大型障碍对观测系统设计造成较大影响等难题。该区的采集实践通过采用优化激发接收条件、加强外界干扰控制等措施,以及观测系统优化等技术的应用,获得了高质量高信噪比的地震资料。
The deployment area of M & L gas storage in Sichuan Basin is close to Weiyuan, Luzhou and Changning shale gas production areas, and has good conditions for reservoir construction. The 3D seismic exploration project carried out in this area is faced with large obstacles such as High Speed Railway, County, Nature Reserve and Scenic Area, which have a great impact on the design of geometry. The acquisition practice in this area has obtained high-quality seismic data with high signal-to-noise ratio by adopting measures such as optimizing the exciting and receiving conditions, strengthening the control of external interference, and the application of geometry optimization technology.
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