过套管电阻率测井在京11断块水淹层评价中的应用  

Application of CHFR in Evaluation of JING11 Block Flooded Reservoirs

作　　者：张国杰[1] 张崇军[2] 赵国瑞[1] 马一平[1] 魏艳梅[2] 商海兰 高丽[2] 张常梅 

机构地区：[1]华北油田研究院,河北任丘062552 [2]华北油田采油四厂,河北廊坊065000 [3]中国石油集团测井有限公司华北事业部,河北任丘062552

出　　处：《测井技术》2008年第5期451-454,共4页Well Logging Technology

摘　　要：为指导水平井设计和钻井,同时为油田的二次开发提供依据,利用过套管电阻率测井方法在华北油田京11断块进行了20口井的套管井剩余油评价。利用过套管电阻率测井资料对地层水淹状况进行了分析和研究,进行了测井资料质量分析及重点井的措施层特征分析。分析表明,电阻率降低对应的均是强水淹层;电阻率升高对应的有中水淹层和强水淹层;电阻率基本不变时,地层受到注水影响越明显,水淹强度越高。编制了京11断块水淹层定性解释图版和解释标准。对18口井进行了重新处理解释,总解释符合率提高到89.5%,证明过套管电阻率测井技术是一种有效的剩余油监测方法。In order to guide horizontal well drilling design and offer the basis for second oilfield development as well, cased-hole residual oil evaluation of 20 wells in Huabei oilfield Jing11 block has been done by using the Cased Hole Formation Resistivity Logging （CHFR）. Analyzed are formation flooded conditions, log data quality and the oil-tested layers characteristics in the key wells, which shows that depressed resistivity means strong flooded layer; increased resistivity means middle-strong flooded layer; when the resistivity is steady, the flooding strength is stron- ger when the water injection result is better. On the basis of above analysis, the interpretation chart and standard of flooded layer in Jing11 block are worked out. The accuracy of reinterpretation of 18 wells in this area reaches 89.5%, showing that CHFR is an effective method to supervise the residual oil.

关 键 词：过套管电阻率测井 测井质量 措施分析 水淹层 解释标准 

分 类 号：P631.84[天文地球—地质矿产勘探]