微球调驱技术在深部堵塞特征油藏的应用研究  

Study on application of microsphere profile control and displacement technology in deep plugging reservoir

作　　者：范敏杰 韩小龙 闫剑锋 王鹏[1] 杨雷[1] FAN Minjie;HAN Xiaolong;YAN Jianfeng;WANG Peng;YANG Lei(Oil Production Plant 3 of PetroChina Changqing Oilfield Company,Yinchuan Ningxia 750006,China)

机构地区：[1]中国石油长庆油田分公司第三采油厂,宁夏银川750006

出　　处：《石油化工应用》2024年第5期65-69,共5页Petrochemical Industry Application

摘　　要：随着油藏注水开发时间延长,水驱状况变差,含水率逐年上升,水驱效率下降,严重影响油藏的采收率。一般认为注水开发过程中会发生孔喉被注水冲刷变化、微裂缝开启等导致的注水突进,往往忽略深部堵塞对水驱的影响。针对油层深部堵塞缺乏研究认识,治理过程中缺乏有效措施,影响此类油藏的开发效果。本文通过对典型的低渗透注水开发油藏分析深部堵塞特征,在此基础上开展微球调驱矿场试验。从效果来看,微球调驱技术与这种深部堵塞油藏适应性较好,通过微球吸水膨胀封堵深部水驱通道,表面活性剂疏通堵塞通道,有效改善水驱,取得了较好的控水稳油效果,为同类型油藏的稳产工作提供科学依据。With the prolongation of water flooding development time,water flooding condition becomes worse,water cut increases year by year,water flooding efficiency decreases,which seriously affects oil recovery.It is generally believed that water injection outburst will occur in the process of water flooding,which is caused by the change of pore phenology and the opening of micro-cracks.The influence of deep plugging on water flooding is often ignored.In view of the lack of understanding of the deep plugging,the lack of effective measures in the treatment process,affecting the development of such reservoirs.Based on the analysis of deep plugging characteristics of typical low permeability waterflooding reservoir,field test of microsphere profile control and flooding is carried out.In view of the effect,the microsphere oil displacement control technology has a good adaptability with this kind of deep plugging reservoir,through the microsphere water swelling to block the deep water drive channel,the surfactant dredges the blocked channel,effectively improves the water drive,good effect of water control and oil stabilization has been achieved,which provides a scientific basis for the production stabilization of the same type of reservoirs.

关 键 词：注水开发 深部堵塞 微球调驱 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]