深射孔吸水剖面解释方法研究  

A STUDY ON THE INTERPRETATION METHOD OF THE WATER ENTRY PROFILE OF DEEP PERFORATION

作　　者：白秀云[1] 邓刚[1] 宗瑞[2] 

机构地区：[1]大庆油田有限责任公司第四采油厂,黑龙江大庆163511 [2]大庆油田有限责任公司技术发展部,黑龙江大庆163453

出　　处：《大庆石油地质与开发》2000年第4期47-48,共2页Petroleum Geology & Oilfield Development in Daqing

摘　　要：W48 2 0 0射孔深度为 1 0cm ,一般只能穿透水泥环抵达地层表层 ;深射孔 (以YD 89射孔为例 )射孔深度为 5 0cm左右 ,能穿透水泥环并进入地层深处。所以进行同位素吸水剖面测井时 ,W48 2 0 0射孔内的同位素由于滤积地层表层而处于探测半径之内 ,基本全部被仪器显示吸水异常 ;而深射孔却有相当量的同位素沿着射孔方向随注水进入地层较深部位 ,处于探测半径之外 ,记录的异常处于“失真”状态。因此对于深射孔而言 ,按常规方法解释出的吸水量要比其实际吸水量低。为此 ,对其解释方法作进一步探讨。The perforation depth of W48 200 is 10cm perforation depth of deep perforation(e.g.YD 89 perforation) can penetrate the cement ring and get to the deep part of formations.During an isotope water entry profile logging,the isotope in W48 200 is displayed as abnormally water entry because it is located on the surface of formation and within the detected diameter.However,a large amount of isotope in deep perforation enters the deep part of the formation along the perforation direction with water injection and is located outside the detected diameter.The recorded abnormal is falsificated.For deep perforation,the water entry interpreted with usual method is lower than the actual value.So this paper further discusses this method.

关 键 词：YD-89射孔 同位素 吸水剖面解释 

分 类 号：TE257.1[石油与天然气工程—油气井工程]