杏河西裂缝性油藏调剖技术适应性评价

Adaptability evaluation of profile adjustment technique of fractured reservoirs in Western Xinghe District

安塞油田杏河西部初期采用超前注水方式开发，受储层非均质性及后期开发改造等诸多因素影响，采油井表现出快速见水、多方向性见水特征。近年在加大区块渗流及储层认识的基础上，开展注水井深部调剖技术封堵高渗带和微裂缝，改善水驱剖面，扩大注入水波及体积，达到控水稳油及提高阶段采收率的目的。主要结合区块储层特征、投产投注方式以及储层后期改造等方面，在注水井调剖试验的基础上，对调剖技术的适应性进行评价，为后期该区块改善开发效果提供参考。

Western Xinghe District of Ansai Oilfieht was developed by advanced watedlooding at the early stage. Influeneed hy muhi- ple factors of reservoir heterogeneity, later stimulated development anti so on, early water breakthrough and multi-direction water breakthrough were encountered in production wells. In recent years, on the basis of enhancing the understanding of block percolation and reservoir properties, deep profile control technology for the injectors was applied to block high permeability zones and micro-fis- sures, to improve water-drive profiles anti expand the swept volume of injected water, in order to achieve the purpose of stabilizing the oil production hy water control and enhancing stage recovery factor. Combined with the reservoir characteristics, modes of being put into production and waterflooding, and later reservoir stimulation in the block, the adaptability of the profile control technology is evaluated on the basis of the injection profile control test. It is expected to be tor reference to improve later development effect of the block.