摘要
水平井电成像测井施工方式为钻杆传榆测井，为了保证电成像资料质量，选用合适的极板压力非常重要，同时操作工程师应和司钻保持良好的沟通，确保电缆速度与钻杆速度保持一致；同直井中电成像图以正北方向为0°不同，水平井电成像图以井眼高边为0°；不同的地质特征在水平井电成像上的显示有可能与直井中的显示不同；裂缝、层界面以及可能的断层是水平井电成像重点关注的地质特征。裂缝参数计算、裂缝发育带统计、应力分析等结果是水平井电成像提供的重要成果。
Microresistivity imaging well logging is transmitted by drill stem. In order to assure qualified imaging logging data, it is important to select the proper electrode pressure down hole before running logging job and keep good communication between field engineer and toolpusher while running to keep cable speed correspond with drill stem speed. The imaging plot of horizontal well is different from vertical well plot that the 0° on XRMI image presents North in vertical well. 0° on XRMI image means the top of the hole in horizontal section. Identification of fracture, layer interface and possible fault is the focus of imaging logging in horizontal wells.Fracture parameter calculation, fracture growth strap statistics, stress analysis are the results provided by imaging logging.
出处
《国外测井技术》
2011年第4期64-67,4,共4页
World Well Logging Technology
关键词
水平井测井
电成像
极板压力I号极板相对方位角
井眼高边
裂缝参数
裂缝发育带
最大地应力
horizontal wellbore logging
electricity imaging
electrode pressure
relative azimuth angle of No.1 electrode
high side of the hole
fracture parameter
fracture growth strap
maximum crustal stress
