摘要
苏里格气田低电阻率气层发育,但在使用常规测井资料评价方面并没有一个行之有效的方法。通过对电阻率比值法在苏里格气田的应用研究,认为该方法所提出的低电阻率气层的深电阻率降低,其冲洗带电阻率会更低的观点在苏里格气田具有普适性。依据电阻率比值消除储层岩性、水性的变化对电阻率的影响,进而评价低电阻率气层,在苏里格气田取得了非常显著的效果。测井解释符合率提高到90%以上,是使用常规测井资料解释低电阻率气层的有效方法,值得进一步推广使用。
The low-resistivity gas reservoirs in the Sulige gas field developed.In the past few years,researchers have made unremitting explorations on its causes and solutions,but it has not been able to find a suitable evaluating method by using conventional logging data.The appearance of the resistivity ratio method provides a new method for the evaluation of low resistivity gas reservoirs.The application of the resistivity ratio method in the Sulige gas field shows that when the deep resistivity of the low resistivity gas layer is reduced,the resistivity of the flushing zone will be lower.It is considered that this viewpoint is universal in the Sulige gas field.The resistivity ratio method can eliminate the influence of lithology and the change of formation water salinity on the resistivity,and then achieve the purpose of evaluating the low resistivity gas layer.This method has achieved remarkable results in the Sulige gas field,and its log interpretation coincidence rate has increased to more than 90%.It is an effective method to explain the low resistivity gas layer using conventional logging data,which is worth further promotion.
作者
赵璐阳
孙越
赵自民
黄胜
周萌
张润
ZHAO Luyang;SUN Yue;ZHAO Zimin;HUANG Sheng;ZHOU Meng;ZHANG Run(Huabei Branch,China Petroleum Logging CO.LTD.,Renqiu,Hebei 062552,China)
出处
《测井技术》
CAS
CSCD
2018年第6期689-694,共6页
Well Logging Technology
关键词
测井解释
苏里格气田
低电阻率气层
电阻率比值法
应用研究
log interpretation
Sulige gas field
low resistivity gas layer
resistivity ratio method
applied research
