声电成像测井在鄂尔多斯盆地陆相页岩气中的应用  

Acoustic and Resistivity Imaging Well Logging Applied to Continental Shale Gas in Ordos Basin

作　　者：孙德瑞 赵谦平 张丽霞 高潮 盖思明 孙飞飞[4] 徐德行[4] 

机构地区：[1]陕西省陆相页岩气成藏与开发重点实验室,陕西西安710075 [2]陕西延长石油(集团)有限责任公司研究院,陕西西安710075 [3]陕西延长油田股份有限公司志丹采油厂,陕西延安717500 [4]大庆油田有限责任公司采油工程研究院,黑龙江大庆163453

出　　处：《非常规油气》2018年第1期48-55,47,共9页Unconventional Oil & Gas

基　　金：陕西省科技统筹创新工程计划项目"延长石油陆相页岩气成藏机理及资源潜力评价"(2012KTZB03-03-01-01)资助

摘　　要：由于鄂尔多斯盆地陆相页岩在岩性、物性、岩石力学和含气性等方面的特殊性,常规测井评价方法难以满足页岩气的勘探开发需要,因此,针对延长组页岩气储层特点,引进了多种特殊测井手段和解释方法,其中声电成像测井技术发挥着重要作用。利用先进的电成像和偶极声波成像测井技术,结合常规测井建立鄂尔多斯盆地延长组页岩气储层岩性高分辨率判别模型,进行薄互层的划分和页岩储层的三级分类,利用偶极声波测井的全波信息建立优化岩石力学参数模型,分析地层岩石力学特征和地应力情况,综合多种手段对储层裂缝和非均质性进行深入探讨。通过实际效果分析可知,声电成像等特殊测井技术的应用,大大提高了页岩气的勘探精度,并且对页岩气的储层评价、水平井施工和完井压裂改造等有很大的帮助。Since the continental shale in Ordos Basin is specificity in lithology,physical property,rock mechanics and gas bearing properties,etc,conventional logging methods are difficult to meet the needs of the shale gas exploration and development.Therefore,according to the characteristics of the shale of Yanchang formation,we have introduced a variety of special logging tools and interpretation methods,in which acoustic and resistivity imaging logging technology played an important role.Using micro-resistivity imager(STAR-Ⅱ)and dipole acoustic imager(XMAC)logging technology,and combining them with conventional loggings to establish a high resolution model of shale gas reservoir lithology in Ordos Basin,to identify mudstone inter-bedding and classify shale reservoirs into three levels.Based on the information of full wave in dipole acoustic logging,the optimization of rock mechanical parameters model was established.A comprehensive study of the fracture and heterogeneity of the reservoir by means of many methods.Through the analysis of the effect,the application of special loggings,such as acoustic and resistivity imaging loggings,that largely improve the precision of the shale gas exploration and development,and provide the help in the shale gas reservoir evaluation,the construction of horizontal wells and wells fracturing.

关 键 词：鄂尔多斯盆地 页岩气 声电成像测井 裂缝 

分 类 号：P631.8[天文地球—地质矿产勘探]