时移地震技术研究

Research on Time-lapse Seismic Technology

面对油气资源的日益匮乏,以及经济发展对油气能源的需求。油气资源的供求矛盾日益突出,如何有效的提高油气采收率的问题受到越来越多学者的关注。传统的压裂、表面活性剂驱、注气驱、聚合物驱等方式虽在一定程度上提高了原油的采收率,但储层的非均质性导致仍有大量油气资源滞留在孔隙喉道中。为有效的对这一部分油气资源进行开发,本文对时移地震技术进行了研究。结果表明,在满足一定储层条件、开采条件的基础上,时移地震技术可以对储层孔隙喉道中的流体进行有效的监测,为调整油气藏开发方案提供有利的依据,进而提高原油采收率[1]。

In the face of shortage of oil and gas resources, and the economic development needs for oil and gas energy,the contradiction between supply and demand of oil and gas resources has become increasingly prominent, so how to effectively improve oil recovery has obtained more and more attention. Conventional fracturing, surfactant flooding, gas injection, polymer flooding although to some extent improve the recovery of crude oil, but a large number of oil and gas resources are still stuck in the pore throats because of the heterogeneity of the reservoir. In this paper, in order to effectively develop oil and gas resources, the time-lapse seismic technology was studied. The results show that, under certain reservoir conditions and developing conditions, the time-lapse seismic technology can effectively monitor the fluid in pore throats of the reservoir, which can provide a favorable basis for adjustment of reservoir development program to improve oil recovery rate.