油井高产聚层化学封口工艺技术研究  

Research on Chemical Sealing Technique of High Polymer Production Layer in Oil Well

作　　者：乔敏[1] 于建成[2] 许俊明[1] 吴志春[1] 

机构地区：[1]大庆油田有限责任公司第六采油厂,黑龙江大庆163114 [2]中国地质大学,北京100083

出　　处：《大庆石油地质与开发》2003年第3期69-71,共3页Petroleum Geology & Oilfield Development in Daqing

摘　　要：随着聚驱采油的工业化推广应用,油田部分区块已进入了聚驱后期及后续水驱开采阶段。由于层内和层间渗透率的差异,部分油井厚油层内中、低渗透层的动用效果仍然很差,严重影响了聚驱开发效果。为此,提出利用复合高效封堵剂,封堵油井各高产聚、高产水层,改善产液剖面,从而提高中、低渗透层驱油能力的油井化学封口技术。概括了堵剂的室内实验评价结果,研究分析了化学封口工艺技术条件,认为应用这项技术可以使受物性夹层限制而无法机械封堵的厚油层层内产波剖面得到有效调整,对提高聚驱后期开发效果具有实际意义,同时对注聚井调剖与油井封堵相结合的整体区块挖潜具有指导作用,是油田高含水后期的挖潜方向。With the development of the polymer flooding industrialization, the partial oilfields have been in late polymer flooding or successor water flooding. Because of the different permeability in inner layer and interlayer, layers with middle and lower permeability are less effective, which seriously affects the exploitation in the polymer flooding oil fields. Therefore the driving ability in the middle and lower permeability layers can be improved by sealing high polymer production layers and high water production layers with high effective compound plugging agent. This technique is very important to improve exploitation effects in late polymer flooding, in the meantime, it is instructive to make a farther research in the whole field of combining the polymer-injected profile with oil well sealing. The technique directs the oil field development in the future.

关 键 词：高产聚层 封堵剂 封口工艺 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]