渤海油田水平井稳油控水完井技术及应用

Water control techniques and application for horizontal wells completion in Bohai oilfield

渤海某油田属于边底水油藏,由于长期注水、注聚造成层间矛盾突出,水平井边底水锥进,过早进入高含水期,无法充分发挥水平井的产液优势。针对该油田前期设计中底水迅速突进的问题,本文主要介绍了变密度筛管、中心管、ICD三种稳油控水技术的基本结构、控水原理及其在油田的应用效果,并通过先期投产的几口井进行了对比,验证了其控水效果良好,对于后续的推广起到了很好的促进作用。

An oilfield in Bohai bay belongs to edge and bottom water reservoir. Due to water injection and polymer injection,contradiction becomes obvious.More than 80 horizontal wells have been implemented in the second adjustment plan. To solve these problems, three kinds of water control measures, including variable density screen, central pipe and ICD have been applied in the oilfield.By comparing several wells in production, the effect of water control is obvious, and will play a very good role in promoting these measures.