摘要
喇嘛甸油田沉积成分复杂,相带变化快,层内层间非均质性严重,长期的注水开发导致水淹层水淹程度差异较大,剩余油分布复杂。应用宽能域测井、氯能谱测井、碳氧比测井等3种套后测井评价技术对喇嘛甸油田Ⅱ类储层进行剩余油评价,结果表明:碳氧比测井受地层水矿化度的影响小,在岩性、物性好的中、厚层能很好地确定剩余油饱和度;宽能域、氯能谱测井在低矿化度地层中,能够较好地反映储层孔隙度,但是剩余油解释的精度较低。
In Lamadian Oilfield,there existed complex deposition,rapid changes of facies belt,serious heterogeneous zones.There was agreat difference between waterflooding extents because of long terms of waterflooding development and the distribution of remaining oil was complex.Wide energy field logging,chlorine spectrometer logging and carbon oxygen ratio logging were used for remaining-oil evaluation for the ClassⅡ reservoirs in Lamadian Oilfield.The results show that carbon oxygen ratio logging is affected by less formation water salinity and it can determine the remaining oil saturation in mid-thick layers with good lithology and physical property.Wide energy field logging and chlorine spectrometer logging can reflect porosity well in low formation water salinity but it has low accuracy for remaining oil interpretation.
出处
《石油天然气学报》
CAS
CSCD
2014年第7期84-88,6,共5页
Journal of Oil and Gas Technology
关键词
喇嘛甸油田
剩余油
宽能域
氯能谱
碳氧比
Lamadian Oilfield
remaining oil
wide energy field
chlorine spectrum
carbon oxygen ratio
