滩浅海地震勘探采集技术应用

Seismic exploration acquisition technique application of Beach shallow sea

胜利油田滩浅海地区由于特殊的地表条件和复杂多变的表层结构,既不同于陆上勘探也不同于尤其在两栖地带存在海陆两种施工方式,如何在地震波激发和接收方面采取措施确保资料一致性,及优化设计以拼接好过渡带的地震资料是施工任务的关键.为此,依托中石化地震勘探重点基础研究实验室,在地发、接收和观测系统优化设计方面作了大量研究试验工作,形成了一套适用于滩浅海地区的地震勘探技术和垦东等地区应用联合表层调查和检波器精确定位等技术,有效地提高了地震资料的信噪比,改进了成像了很好的地震勘探效果.

 For Shengli oilfield, Exploration in beach and shallow sea area is different from land and sea exploration for special surface and complex surface structure, especially, there are two work modes of offshore exploration and land exploration in this area. The key is how to take measure to ensure data consistent in explode and receive of seismic wave, and how to optimize layout design for pieced together these seismic data of beach shallow sea area. Therefore, relying on the emphases fundamental research lab of geophysical exploration of SINOPEC, a great deal of test had achieved in exploding and receiving and optimizing layout design, the seismic exploration technique of beach shallow sea has formed. In many beach shallow sea for instance Kendong and Jidong etc, these technologies have applied such as near-surface layer investigation and geophone accurate positioning technology etc, then the signal-to-noise ratio of seismic datum has effectively raised, and the precision of seismic imaging has improved. As a result having gained very good seismic exploration effect.