用测井资料预测压裂裂缝高度的方法研究  

Study on Predicting Hydraulic Fracture Height with Logging Data

作　　者：江万哲[1] 章成广[2] 黄文新[2] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学),湖北荆州434023 [2]长江大学地球物理与石油资源学院,湖北荆州434023

出　　处：《测井技术》2007年第5期479-481,共3页Well Logging Technology

摘　　要：为了给压裂施工提供合理的泵压增量及地层破裂压力参考值,需要预测压裂裂缝的高度。利用声波全波测井获得的地层纵横波时差,结合密度测井和自然伽马测井资料,可以计算地层弹性参数、泥质含量和孔隙度,进而可得到合理的岩石固有抗压强度。通过定量计算岩石的断裂韧度和地层的应力强度因子,便可预测压裂裂缝的延伸高度。设计了相应的实际资料处理计算软件。应用实例表明该方法可以有效预测压裂裂缝延伸高度。It is necessary to predict hydraulic fracture height for providing pumping pressure increment and fracturing pressure reference value. Elasticity parameters of rock, as well as shale content and porosity of the formation can be calculated utilizing logging data of compressional and shear slowness of full wave train acoustic logging combining with density and natural gamma ray logs, and then intrinsic compressive strength of the rock can be obtained reasonably. Based on computing fracture tenacity of the rock and stress intensity factor of the formation, the fracture extending height will be predicted. A corresponding software for processing practical data has been developed. Applied results show that the method is effective to predict hydraulic fracture height.

关 键 词：石油测井 水力压裂 测井资料 裂缝高度 应力强度 岩石韧度 

分 类 号：P631.84[天文地球—地质矿产勘探]