冲击波解堵技术在中、低渗透油藏中的应用

Application of Shock Wave Plug-removing Measure in Low-mid Permeability Reservoir

王先荣 袁艳勤 杜海涛

WANG Xian-rong YUAN Yan-qin DU Hai-tao

中国石化 江苏油田分公司 第二采油厂, 江苏 金湖 211600

No.2 Production Factory of Jiangsu Oilfield Branch of SINOPEC, Jinhu 211600, China

冲击波是近年发展起来的一种新型解堵技术, 该技术利用机械学、水力学、化学、热力学等原理, 对油水井近井地带解除污染, 提高油层渗流能力和单井产能。近年来GJ、MTZ、WZ中、低渗透油藏洗井、钻井污染日益严重而其它解堵措施效果不明显, 结合中低渗透油藏渗流特点, 研究引进了冲击波解堵技术, 经过16口油井的应用, 增油9785t。

According to the principle of mechanics, hydraulics, chemistry and thermodynamics, the newly developed technique of shock wave may remove formation plugging near wellbore area to increase the permeable capability of the formation and the output of oil wells.With studies of seeping specialty and characteristics of formation damage in low-mid permeability reservoir, shock wave is utilized in GJ, MTZ, WZ oil field.Recently, the field trials were applied at 16 wells and the output increased by 9785t.