井下微地震裂缝监测技术在水平井分段压裂中的应用——以WQ油田为例  

Application of Downhole Microseismic Fracture Monitoring Technology in Staged Fracturing of Horizontal Wells——Take WQ oilfield as an Example

作　　者：李婷婷[1] 尚秉华 罗鹏 Li Ting-ting;Shang Bing-hua;Luo Peng

机构地区：[1]延长油田股份有限公司吴起采油厂,陕西延安717600

出　　处：《化工设计通讯》2022年第8期39-41,共3页Chemical Engineering Design Communications

摘　　要：井下微地震裂缝监测技术是将检波器安放在监测井中,监测正在压裂的井,以认识压裂裂缝的方位、倾角、大小(长度,宽度,高度)、间距和破裂程度信息。在WQ油田水平井开展分段压裂井下微地震裂缝监测,监测数据表明:该地区裂缝走向平均为北偏东93°,与本区的最大主应力基本一致;裂缝走向与井筒近似垂直,产生的垂直缝,有利于扩大压裂体积。Downhole micro-seismic fracture monitoring technology is to place geophone in the monitoring well to monitor the fracturing well in order to know the information of fracture orientation,dip angle,size (length,width,height),distance and fracture degree.The microseismic fracture monitoring data of horizontal wells in Wuqi Oilfield show that the fracture trend in this area is 93 north-east,which is consistent with the maximum principal stress in this area.The fracture strike is nearly perpendicular to the Wellbore,and the vertical fracture is favorable to enlarge the fracture volume.

关 键 词：井下微地震 裂缝监测 水平井 分段压裂 

分 类 号：P631.4[天文地球—地质矿产勘探]