孙宏智,张美玲,彭会忠
SUN Hong-zhi; et al. ( Exploration Department of Daqing Oilfield Company Ltd. ; Daqing 163453;

• 1:大庆油田有限责任公司勘探部
• 2:大庆石油管理局测井公司
• 3:大庆石油管理局测井公司 黑龙江 大庆 163453
• 4:黑龙江 大庆 163412

摘要(Abstract)：

在存在油水(气水)两相的储集层中,当地层水矿化度高于泥浆矿化度时,泥浆滤液的侵入会在井眼附近形成低阻环带。利用近似达西定律和两相渗流方程可以建立储层的孔渗特性与深、中感应测井响应在径向上的分布关系,计算结果表明,不饱和烃地层中低阻环带形成的初始时间与储集层的孔隙结构有关,并随钻井液侵入时间、侵入程度的增加而逐渐远离井眼;低阻环带的存在及运移会使深、中感应测井响应值在某一时刻交会;深、中感应交会点对合理应用感应测井资料识别含油层具有重要意义。因此,深、中感应最佳测井时间应选择在两者交会之前且差值最大的时刻,利用实际深、中感应响应的正、负差异及测井时间可以推测储层的孔渗特征。
In the reservoirs containing oil and water ( or gas and water) two phase fluids, with the condition of salinity of mud is higher than that of formation water, low resistive zone occur near the borehole because of the invading of mud filtrate. Using the Darce law and the two-phase fluids seepage formula, the relationship can be made between property of pore and permeability and response values of deep and medium induction logs. From the calculation result on the 4 side-wall-coring wells, it can be find that the initial time when the low resistive zone presents is related to the porous structure in the no-full hydrocarbon-containing formation. And with the invasion time and invasion depth increasing, the zone is more farther away from the borehole. The exiting and moving of the law resistive zone can cause the crossover of deep and medium induction logs. The crossover point is useful to recognize oil-containing layers significantly. The best running time of deep and medium induction logging should be choose at the time when the difference is biggest between deep and medium induction logs before the crossover occurs. And using the positive ( or negative) difference between deep and medium induction logs and logging running time, the pore and perinea bility properties of the reservoir can be presumed.

关键词(KeyWords)： 深、中感应响应曲线;低阻环带;最佳测井时间;孔渗特性
curves of deep and medium induction logging; low resistive zone; best logging running time; properties of pore and permeability

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 孙宏智,张美玲,彭会忠
SUN Hong-zhi; et al. ( Exploration Department of Daqing Oilfield Company Ltd. ; Daqing 163453;

参考文献(References)：

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