In-situ Fluid Phase Variation along the Thermal Maturation Gradient in Shale Petroleum Systems and Its Impact on Well Production Performance

作     者：Qianyou Wang Wei Yang Yaohua Li Zhenxue Jiang Ming Wen Rusi Zuo Xin Wang Zixin Xue Yaohua Wang Qianyou Wang;Wei Yang;Yaohua Li;Zhenxue Jiang;Ming Wen;Rusi Zuo;Xin Wang;Zixin Xue;Yaohua Wang

作者机构：State Key Laboratory of Petroleum Resources and ProspectingChina University of PetroleumBeijing 102249China Department of EarthOcean and Ecological SciencesUniversity of LiverpoolLiverpool L693GPUK Unconventional Oil and Gas Sciences and Technology InstituteChina University of PetroleumBeijing 102249China Oil and Gas SurveyChina Geological SurveyBeijing 100083China Now at the Lyell CentreHeriot-Watt UniversityEdinburgh EH144APUK State Key Laboratory of Marine GeologyTongji UniversityShanghai 200092China College of GeosciencesChina University of PetroleumBeijing 102249China Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment MonitoringCentral South UniversityChangsha 410083China 

出 版 物：《Journal of Earth Science》 (地球科学学刊（英文版）)

年 卷 期：2023年第34卷第4期

页      面：985-1001页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 0708[理学-地球物理学] 082002[工学-油气田开发工程] 

基　　金：financially supported by the National Natural Science Foundation of China (Nos.42172140,U2244207,and 42202179) Science Foundation for Distinguished Young Scholars of China University of Petroleum,Beijing (No.2462020QNXZ004) China National Petroleum CorporationChina University of Petroleum (Beijing) Strategic Cooperation Science and Technology Project (No.ZLZX2020-01-06) State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum (No.PRP/open-2217) State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development,the University of Liverpool and China Scholarship Council Awards (No.202009110097) the AAPG Foundation Grants-in-Aid award 

主　　题：shale oil shale gas gas condensate fluid phase thermal maturity sweet spots GOR EUR. 

摘      要：In-situ fluid phase behavior is important in determining hydrocarbon contents and the multiphase flow through shale *** gas-to-oil ratio(GOR) has been recognized as a critical indicator of fluid ***,little is known about the impact of fluid phase variation across the thermal maturity on shale oil/gas production(e.g.,estimated ultimate recovery,EUR).According to the specific gravity ratio of oil/gas,the producing GOR was converted and normalized into a mass fraction of gas in total hydrocarbons(MGOR) to compare North American shale oil/gas plays with Chinese shale oil and hybrid gas-condensate plays.A correlation between MGOR,the fluid phases,and production data was established to identify five phase stages of *** systematically with the different production zones,which shows promise in rapidly indicating the well production performance and high production stages of shale oil/gas *** hybrid shale gas condensate index,Tmax,and total gas contents were integrated to present the fluid types and maturity of shale gas-condensates,which indicates fluid phase and production variation across thermal *** results offer a unique perspective on the shale oil reservoir producibility based on the impact of GOR on fluid phases and EUR from the dominant global oil/gas plays.