基于测录井资料的页岩储层可压性评价方法与应用  

Evaluation method of shale reservoirs fracability based on logging data and its application

作　　者：赵晓宇 ZHAO Xiaoyu(Research Institute ctf Petroleum Exploration&Development,East China Company,SINOPEC,Nanjing 210000,CAina)

机构地区：[1]中国石化华东油气分公司勘探开发研究院,江苏南京210000

出　　处：《复杂油气藏》2021年第2期32-35,共4页Complex Hydrocarbon Reservoirs

基　　金：“十三五”国家科技重大专项大型油气田及煤层气开发项目“彭水地区常压页岩气勘探开发示范工程”(2016ZX05061);中国石化“十条龙”重大科技攻关项目“南川复杂构造带页岩气勘探开发关键技术研究”(P19017-3)联合资助。

摘　　要：可压性是表征页岩储层能被有效改造的难易程度,目前国内外页岩气储层可压性评价方法,大多依托于岩石力学实验数据及特殊测井解释成果。引入一种基于常规测井及随钻录井资料的储层可压性评价方法,简单易操作,可获取连续地应力剖面,并在此基础上修改取值模式,使得最大水平主应力的计算更加科学。实际应用于南川页岩气田五峰-龙马溪组页岩储层,取得了较好效果。Fracability is to characterize the degree of difficulty with which shale reservoirs can be effectively modified.At present,most methods for evaluating the fracability of shale-gas reservoirs at home and abroad rely on rock mechanics experimental data and special logging interpretation results.In this work,it is introduced a reservoir fracability evaluation method based on conventional logging and logging while drilling data,which is simple and easy to operate and can obtain continuous in-situ stress profiles.On this basis,the value mode is modified to make the calculation of the maximum horizontal principal stress more scientific.It has been practically applied to the Wufeng-Longmaxi Formation shale reservoir in the Nanchuan shale-gas field and has achieved good results.

关 键 词：页岩气 可压性分析 随钻录井 水平应力差异系数 

分 类 号：TE122[石油与天然气工程—油气勘探]