松辽盆地十屋油田营城组裂缝识别  

Fracture Identification of Yingcheng Formation in Shiwu Oilfield in Songliao Basin

作　　者：许君玉[1,2] 

机构地区：[1]中国矿业大学地球科学与测绘工程学院,北京100083 [2]中国石化勘探开发研究院,北京100083

出　　处：《新疆石油地质》2012年第1期65-68,共4页Xinjiang Petroleum Geology

摘　　要：运用变尺度分形和双侧向-微球型聚焦相结合的方法,对松辽盆地十屋油田营城组声波时差和电阻率测井数据进行了裂缝识别研究,总结研究区裂缝在双侧向和微球型聚焦测井曲线上及变尺度分形曲线上的3种不同形态及其所反映的裂缝的性质:微球型聚焦电阻率值围绕着双侧向值上下波动,所识别的裂缝主要是低角度裂缝;双侧向与微球型聚焦电阻率值正差异,所识别的裂缝主要是高角度裂缝;若两者为负差异,识别的裂缝主要也是高角度裂缝,但这种方式是识别裂缝的次要方式。预测了十屋油田营城组5个层段的裂缝发育情况,探讨了裂缝发育程度与单井产能的关系。研究结果证明,近水平裂缝、低角度裂缝是控制单井产能的主要因素。In view of the acoustic and resistivity logging data from Yingcheng formation in Shiwu oilfield in Songliao basin,the fractures are identified using methods of variable scale fractal,dual-laterlog and microspherically focused logging.There are three different shapes of fractures on the log curves,which reflect the properties of identified fractures.The resistivity data of microspherically focused logging fluctuates up and down surrounding that of dual-laterlog,which means low-angle fractures;the dual laterolog resistivity logging data and microspherically focused resistivity logging data appear to be positive difference,which means high-angle fractures;if the difference between these data are negative,which means the identified are also mainly high-angle fractures as secondary mode to fracture identification.Also,the fractures development in five intervals of Yingcheng formation in Shiwu oilfield is predicted and its relationship with single well productivity is discussed.The results show that near-horizontal fractures and low-angle fractures are the main factors to control single well productivity.

关 键 词：松辽盆地 十屋油田 裂缝特征 变尺度分形法 双侧向-微球型聚焦法 

分 类 号：TF111[冶金工程—冶金物理化学]