特低渗油田泡沫辅助减氧空气驱矿场试验效果及认识  

Test effect and understanding of foam-assisted oxygen-reduced air flooding in oilfields

作　　者：孟令为 马骋 江涛[1] 李艳[1] 许志雄[1] 李志强[1] MENG Lingwei;MA Cheng;JIANG Tao;LI Yan;XU Zhixiong;LI Zhiqiang(Oil Production Plant 3 of PetroChina Changqing Oilfield Company,Yinchuan Ningxia 750006,China;Oil Production Plant 11 of PetroChina Changqing Oilfield Company,Qingyang Gansu 745000,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 [2]中国石油长庆油田分公司第十一采油厂,甘肃庆阳745000

出　　处：《石油化工应用》2020年第8期86-89,共4页Petrochemical Industry Application

摘　　要：W区块长6油藏为典型的“三低”油藏,进入中含水开发阶段后,平面、剖面矛盾加剧,水驱油效率降低,常规水驱调整效果有限,稳产形势日益严峻。泡沫辅助减氧空气驱具有“遇油消泡、遇水稳定”的性能,能起到封堵调驱作用。因此在注入参数优化设计的基础上,通过十年的矿场试验,结果表明泡沫辅助减氧空气驱在特低渗透油田具有良好的适应性,取得较好的阶段效果,并形成新的认识,对同类油藏开展泡沫辅助减氧空气驱具有借鉴意义。The Chang 6 reservoir in block W is a typical"three low"reservoir,after entering the middle water development stage,the contradiction between plane and profile is intensified,water flooding efficiency reduced,the adjustment effect of conventional water flooding is limited,the situation of stable production is getting worse.Foam-assisted oxygen-reduced air flooding has the performance of"oil defoaming and water stability",can play a role in plugging and regulating displacement.Therefore,based on the optimized design of injection parameters,through ten years of field tests,the results show that foam-assisted deoxidized air flooding has good adaptability in ultra-low permeability oilfields,has achieved good stage effects,and formed new understanding,can be used for reference to carry out foam-assisted oxygen-reduced air flooding in similar reservoirs.

关 键 词：特低渗透油藏 泡沫辅助减氧空气驱 矿场试验 提高采收率 

分 类 号：TE357.9[石油与天然气工程—油气田开发工程]