双侧向电阻率测井曲线负差异的仪器实验研究  

Experimental Study on Negative Difference of Dual Lateral Resistivity Logging Curves

作　　者：李明[1] 于增辉[1] 唐联级[1] 李健飞[1] LI Ming;YU Zenghui;TANG Lianji;LI Jianfei(Well-tech of China Oilfield Services Limited,Sanhe,Hebei 065201,China)

机构地区：[1]中海油田服务股份有限公司油田技术事业部

出　　处：《石油管材与仪器》2019年第5期46-48,共3页Petroleum Tubular Goods & Instruments

摘　　要：双侧向测井是目前油气田应用最广泛的电阻率测井,它适用于高阻碳酸盐地层和低阻砂泥岩地层。其测量精度高,动态范围大,对于地层区分和评价起着重要作用。但在进行高温、高矿化度泥浆测井时,由于双侧向仪器或地层特性等因素影响,会导致深、浅侧向电阻率曲线出现负差异。就此问题展开研究,通过现场测井实验对比分析,最终确定了几种电阻率曲线出现负差异的原因,为现场问题的解决提供了思路。Dual lateral log is the most widely used resistivity logging in the oil and gas fields. It is suitable for high resistivity carbonate formation and low resistivity sand shale formation. The high measurement accuracy and large dynamic range play an important role in stratigraphic classification and evaluation. However,in the case of high temperature and high salinity mud logging,the deep and shallow lateral resistivity curves are negatively different due to the influence of double-lateral instruments or formation characteristics. Finally,several reasons for negative resistivity differences were determined through comparative analysis of field logging experiments,which provided ideas for solving field problems.

关 键 词：双侧向测井 电阻率测井 高矿化度泥浆 负差异 

分 类 号：P631.811[天文地球—地质矿产勘探]