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D28区块为一个典型的复杂薄层砂岩油藏,具有原油性质差异大、储层特征差异大、油藏类型差异大的特点,直井开发出砂严重,区块长期处于低速开发状态。本次在油藏研究的基础上,针对不同原油性质、不同储层,按照分层、分区制定开发对策的思路,采取不同开发方式、不同井型、重建井网,部署实施新井30口,采油速度由0.01%提高到1.32%,实现了复杂出砂油藏的有效开发。
The D28 block is a typical complex thin-layer sandstone reservoir, which has the characteristics of large differences in crude oil properties, large differences in reservoir characteristics and large differences in reservoir types. The development of sand in vertical wells is serious, and the blocks are in a state of low-speed development for a long time. On the basis of reservoir research, different development methods and different well types were rebuilt according to different types of crude oil and different reservoirs. According to the idea of stratification and zoning development measures, the well network was rebuilt and 30 new wells were deployed. The speed is increased from 0.01% to 1.32%, realizing the effective development of complex sand reservoirs.