摘要
丘陵油田经多年注水开发,目前已进入中高期含水阶段,受注入水影响,储层形成多压力系统,部分自然电位曲线异常。近期,通过统计整理自然电位异常层试油结论发现,自然电位异常油层和水淹层的深侧向电阻率数值分布存在以下规律：油层深电阻率普遍≥100Ω.m,而水淹层深电阻率〈100Ω.m。为弄清自然电位异常层深电阻率分布特征原因,指导今后的测井解释和油水井动态分析工作,从落实自然电位异常原因入手,对自然电位异常层的含油饱和度、过滤电位等认真分析,找出了自然电位异常油层高深电阻率的原因,并应用油层和水淹层深电阻率的差异规律,对目前油田未射孔的自然电位异常层进行了再解释。
After many years' injection development,Qiuling oilfield is in the high water cut stage.It is affected by the injected water resulting in multi-pressure system and anormal spontaneous potential curves.Recently,through statistical processing of natural potential anomaly layers,it is found that there are some laws of deep lateral resistivity value distribution between natural potential anomaly oil layer and water-flooded zones:deep resistivity of oil layers is usually ≥ 100Ω m while deep resistivity of water-flooded zones is < 100Ωm.In order to know the cause to guide future well logging interpretation and dynamical analysis of oil and water wells,oil saturation of anormal natural potential layers and filtering potential are studied seriously.The resistivity difference between oil layer and water-flooded zone is used to interpret the unperforated anormal natural potential layers again.
出处
《国外测井技术》
2011年第2期46-47,4,共2页
World Well Logging Technology
关键词
自然电位
深电阻率
丘陵油田
natural potential
deep resistivity
Qiuling oilfield
作者简介
作者简介：张军（1981-），男，助理工程师，从事测井方法解释工作。
