摘要
八面河油田面1区沙三上属于普通稠油Ⅰ类油藏,目前已进入特高含水低速采油阶段,由于地层水中钙镁离子含量高,按化学驱分类均属于Ⅲ类油藏,长期制约了聚合物驱的现场应用。通过室内评价研究,选择了一种新型抗钙镁聚合物体系,可以在较低浓度下达到较高的体系粘度,各项指标均达到了开展聚合物驱的要求,目前该体系已通过了室内性能评价,并在面1区完成了聚合物体系的单井试注试验,即将投入井组先导试验。
Sha3 upper in Area No.1 of Bamianhe oilfield belongs to Class Ⅰ reservoir of the general heavy oil and has entered the stage of super high water-cut and low oil production at present.Due to the high content of calcium/magnesium ions in formation water,both belong to Class Ⅲ reservoir as per classification by chemical flooding,which has restricted the field application of polymer flooding for a long time.A new type of anti-calcium/magnesium polymer system has been selected through laboratory evaluation,which can achieve high viscosity at low concentration and meet the requirement of polymer flooding.At present,the system has passed the evaluation of lab performance,and the single well test of polymer system has been completed in Area 1,which is about to be put into well-group pilot tests.
作者
甘奕梅
GAN Yimei(Exploration&Development Research Institute of Jianghan Oilfield Company,Sinopec,Wuhan,Hubei,430223,China)
出处
《江汉石油职工大学学报》
2021年第2期4-6,19,共4页
Journal of Jianghan Petroleum University of Staff and Workers
关键词
八面河
高钙镁油藏
聚合物驱
增粘性能
结垢
Bamianhe Oilfield
High Calcium/Magnesium Reservoir
Polymer Flooding
Tackifying Properties
Scaling
