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

被引:6
作者
Wang, Qianyou [1 ,2 ,3 ]
Yang, Wei [1 ,3 ]
Li, Yaohua [4 ]
Jiang, Zhenxue [1 ,3 ]
Wen, Ming [1 ,5 ]
Zuo, Rusi [6 ]
Wang, Xin [1 ,7 ]
Xue, Zixin [1 ,3 ]
Wang, Yaohua [8 ]
机构
[1] China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China
[2] Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool L69 3GP, Merseyside, England
[3] China Univ Petr, Unconvent Oil & Gas Sci & Technol Inst, Beijing 102249, Peoples R China
[4] China Geol Survey, Oil & Gas Survey, Beijing 100083, Peoples R China
[5] Heriot Watt Univ, Lyell Ctr, Edinburgh EH14 4AP, Midlothian, Scotland
[6] Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China
[7] China Univ Petr, Coll Geosci, Beijing 102249, Peoples R China
[8] Cent South Univ, Key Lab Metallogen Predict Nonferrous Met & Geol, Changsha 410083, Peoples R China
基金
中国国家自然科学基金;
关键词
shale oil; shale gas; gas condensate; fluid phase; thermal maturity; sweet spots; GOR; EUR; TRIASSIC YANCHANG FORMATION; GAS/OIL-RATIO BEHAVIOR; EAGLE FORD SHALE; ORDOS BASIN; CAPILLARY-PRESSURE; CONTINENTAL SHALE; ORGANIC-MATTER; BARNETT SHALE; OIL; GAS;
D O I
10.1007/s12583-022-1693-2
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
In-situ fluid phase behavior is important in determining hydrocarbon contents and the multiphase flow through shale reservoirs. The gas-to-oil ratio (GOR) has been recognized as a critical indicator of fluid types. However, 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 (M-GOR) to compare North American shale oil/gas plays with Chinese shale oil and hybrid gas-condensate plays. A correlation between M-GOR, the fluid phases, and production data was established to identify five phase stages of flow. M-GOR varies systematically with the different production zones, which shows promise in rapidly indicating the well production performance and high production stages of shale oil/gas plays. The hybrid shale gas condensate index, T-max, 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 evolution. The 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.
引用
收藏
页码:985 / 1001
页数:17
相关论文
共 79 条
[1]   Estimation of thermal maturity in the Bakken source rock from a combination of well logs, North Dakota, USA [J].
Abarghani, Arash ;
Ostadhassan, Mehdi ;
Bubach, Bailey ;
Zhao, Peiqiang .
MARINE AND PETROLEUM GEOLOGY, 2019, 105 :32-44
[2]  
Ahmadi MA, 2017, FLUID PHASE BEHAVIOR FOR CONVENTIONAL AND UNCONVENTIONAL OIL AND GAS RESERVOIRS, P483, DOI 10.1016/B978-0-12-803437-8.00010-5
[3]   Geology of the Chang 7 Member oil shale of the Yanchang Formation of the Ordos Basin in central north China [J].
Bai Yunlai ;
Ma Yuhu .
PETROLEUM GEOSCIENCE, 2020, 26 (02) :355-371
[4]   Normal capillary forces [J].
Butt, Hans-Juergen ;
Kappl, Michael .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2009, 146 (1-2) :48-60
[5]  
Crnkovic-Friis L, 2015, SPE ANN TECHN C EXH
[6]   Investigation of gas content of organic-rich shale: A case study from Lower Permian shale in southern North China Basin, central China [J].
Dang, Wei ;
Zhang, Jin-Chuan ;
Tang, Xuan ;
Wei, Xiao-Liang ;
Li, Zhong-Ming ;
Wang, Cheng-Hu ;
Chen, Qian ;
Liu, Chong .
GEOSCIENCE FRONTIERS, 2018, 9 (02) :559-575
[7]  
EIA, 2018, ASS ANN EN OUTL 2018
[8]  
EIA, 2019, BAKK FORM OIL GAS DR
[9]  
EIA, 2014, Updates to the EIA eagle ford play maps
[10]  
Espitalie J., 1984, Analytical pyrolysis - Techniques and applications, P276