SAGD开发中低物性段改造措施研究  

Study on Stimulation Measures for Medium-low Physical Property Zones in SAGD Development

作　　者：王猛[1] 王国栋[2] 

机构地区：[1]东北石油大学,黑龙江大庆163000 [2]中油辽河油田公司,辽宁盘锦124010

出　　处：《特种油气藏》2014年第3期104-106,156,共3页Special Oil & Gas Reservoirs

基　　金：国家重大科技专项"稠油/超稠油开发关键技术"(2011ZX05012)

摘　　要：为解决杜84块馆陶油藏SAGD蒸汽腔上升受阻、开发效果变差的问题,利用岩心、测井解释等资料开展油藏重新评价。层内发育的多个低物性段阻挡蒸汽腔上升,导致井组生产效果变差。提出低物性段射孔改造,建立蒸汽腔上下同步泄油模式,强制动用低物性段上方储层,进而改善SAGD开发效果。现场实施后,突破了"渗流屏障",蒸汽腔快速向上扩展,井组生产效果显著提高,证明射孔井段调整能够改善SAGD开发的效果,对于高效开发馆陶油藏具有十分重要的意义。To solve the problems such as hindered rise of SAGD steam chest and worsening development result in the Guantao oil reservoir of Block Du-84,the oil reservoir was re-evaluated by use of core data and logging interpretation information,which shows a number of low physical property zones in the formation hindered the rise of steam chest,resulting in worsening of production result of the well group. Perforation of the low physical property zones has been proposed to establish the mode of synchronous oil drainage above and below the steam chest and force the reservoir above the low physical property zone to produce,further improving the SAGD development result. After field implementation,it is found that the seepage barrier was broken through,steam chest expanded upwards quickly and production result of the well group was enhanced,showing that the adjustment of perforated intervals can enhance SAGD development. It is of very great significance for the efficient development of Guantao oil reservoir.

关 键 词：超稠油 SAGD 蒸汽腔 物性夹层 射孔改造 

分 类 号：TE357.44[石油与天然气工程—油气田开发工程]