测井新技术在包-界地区须家河组储层评价中的应用  

New Logging Techniques Used in Formation Evaluation on Xujiahe Group Reservoirs in Bao-Jie Area,Sichuan Basin

作　　者：张冲[1,2,1,3] 毛志强[1,2,1,3] 王兆年[4] 金燕[4] 谢冰[4] 刘兴刚[4] 

机构地区：[1]中国石油大学(北京)资源与信息学院 [2]油气资源与探测国家重点实验室,北京102249 [3]地球探测与信息技术北京市重点实验室,北京102249 [4]西南油气田分公司勘探开发研究院,成都610051

出　　处：《科技导报》2009年第13期78-82,共5页Science & Technology Review

基　　金：西南油气田分公司项目(XNS14JS2005-307)

摘　　要：包-界地区须家河组储层属于典型的低孔低渗储层,储层横向变化大,非均质性强。受构造幅度及岩性和物性限制气水分异程度差,储层识别存在较大困难,常规的测井资料很难解决这一难题。阵列感应电阻率、阵列声波、核磁共振等测井新技术的应用为解决这一难题提供了很好的手段,研究认为,利用双侧向和阵列感应电阻率组合方法识别气层、气水同层和水层的效果最好。阵列声波纵、横波时差比可以定性指示储层的含气性,核磁共振测井识别储层的含气性也有一定效果。同时井壁微电阻率扫描成像测井技术为研究包-界地区地层的沉积结构和构造特征发挥了重要的作用。通过对几个实例的阐述,证实了测井新技术在包-界地区须家河储层的流体识别和沉积构造特征描述中的应用是成功的。Xujiahe group reservoir in Bao-Jie area is a typical low porosity and low permeability reservoir which is characterized by quick lateral variations and strong heterogeneity. Because of therestriction of amplitude structure, lithology and physical properties, differential degree of gas and water is poor. It was difficult in reservoir identification which was used by conventional log data. The difficult problem was solved by the application of new logging techniques, such as array induction resistivity, array sonic imaging and nuclear magnetic resonance logging. The results showed that fluid property identification using combination method of dual lateral logging and array induction resistivity has best effect. Gas-bearing of sandstone reservoir can be qualitatively indicated by ratio of compressional wave slowness to shear wave slowness and NMR logging. Meanwhile, micro resistivity imaging played an important role in the research of sedimentary structure and structural feature in Bao-Jie area. After explaining in detail by a few examples, these new logging techniques have been proved to be practical and helpful in fluid property identification and sedimentary structures of the Xujiahe Group reservoirs in Bao-Jie formation of Sichuan Basin.

关 键 词：测井新技术 低孔低渗 储层 流体识别 沉积构造 

分 类 号：P631.81[天文地球—地质矿产勘探]