表面活性剂/聚合物体系驱油段塞优化研究  

Flooding Slug Optimization Research of Surfactant/Polymer System

作　　者：赵劲毅[1] 

机构地区：[1]大庆油田有限责任公司第二采油厂,黑龙江大庆163414

出　　处：《化工时刊》2013年第6期10-13,共4页Chemical Industry Times

摘　　要：通过物理驱油模拟装置,利用人造岩心对表面活性剂/聚合物体系(二元复合体系)驱油实验的段塞进行了优化选择,从主段塞表面活性剂浓度、聚合物浓度对化学药剂的用量进行优化,从二元复合体系主段塞、前置段塞和后续保护段塞大小进行优化,最终确定了二元体系的化学剂注入主段塞为0.3%S(无碱表面活性剂)+1 600 mg/LP(中分聚合物),岩心驱油整个段塞优化为:0.03 PV前置段塞(高浓度聚合物)+0.3 PV二元(S:0.3%+HPAM:1 600mg/L,粘度40.5 mPa.s)+0.2 PV HPAM+后续水驱。通过非均质岩心和天然岩心验证了该优化段塞提高采收率的能力,在非均质岩心中提高采收率能达到20%OOIP以上,在天然岩心中能达到16%OOIP以上。In this paper, according to physical flooding simulator, using the artificial core, slug of surfactant/ polymer system（binary complex system）were optimized selection, we optimize from the main slug of surfactant con- centration, polymer concentration on the amount of chemicals, also from main slug in binary complex system, pre - slug and subsequent protection slug, ultimately determine the main slug of chemicals flooding in binary complex sys- tem is 0.3% S （alkali -free surfactant） ＋ 1600mg/LP （Middle molecular polymer）, the optimization slug in core flooding is 0.03 PV pre - slug（ high concentrations of polymer） ＋ 0.3 PV binary complex system（ s ： 0.3% ＋ HPAM ： 1 600 mg/L, viscosity 40.5 mPa · s） ＋ 0.2 PV HPAM ＋ subsequent water flooding. Through non - homogeneous cores and natural cores we verify the enhanced oil recovery capacity of the optimal slum, the enhanced oil recovery can achieve to more than 20% OOIP in non - homogeneous cores, which can achieve to more than 16% OOIP in natu- ral cores.

关 键 词：二元体系 段塞优化 驱油实验 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]