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由于沉积格局复杂性及成岩作用多样性,油层具有非均质性特点,呈现层多、纵向及平面上储层物性变化大等情况。油井开采时间延长会导致油田综合含水不断升高,含水的升高将会严重影响油田的开采效益。当含水达到极限时,就要采取关井措施,关井就会影响油田的经济效益。因此大多数油田采取对深层进行封堵,从而对目的层油田进行开采,以此提高石油的开采效益。本文主要研究采用无机复合堵剂进行油井高含水层深部堵水,既能满足工程上暂时的封堵,又能不污染地质,而且对油田再次开发影响较小,对于增加油田的开采效益具有一定意义。
Due to the complexity of sedimentary pattern and the diversity of diagenesis, the oil layer has the characteristics of heterogeneity, showing the changes of reservoir physical properties in a large number of layers and vertically and horizontally. The prolonged oil recovery time will lead to the continuous rise of the integrated water content in the oilfield. The increase of water content will seriously affect the oil recovery efficiency. When the water reaches the limit, it is necessary to take measures to shut the well, shutting down the well will affect the economic benefits of the oilfield. Therefore, most of the oilfields have taken deep-sea plugging so as to mine the oilfields of interest so as to enhance the efficiency of petroleum exploitation. In this paper, the main study of the use of inorganic composite plugging agent for deep aquifer water plugging, both to meet the temporary plug on the project, but also does not pollute the geology, but little effect on the re-development of the oilfield, for increasing oil recovery has certain benefits significance.