Micro-occurrence of formation water in tight sandstone gas reservoirs of low hydrocarbon generating intensity: Case study of northern Tianhuan Depression in the Ordos Basin, NW China

Chen, 2019, Origin and distribution of formation water in tight sandstone reservoirs in the northeastern Ordos Basin, Oil Gas Geol., 40, 313 Zhang, 2005, New progress in the study of source rocks in ordos basin, 99 Hu, 2017, Chemical characteristics of Benxi Formation water and its significance for natural gas accumulation in Southeast Ordos Basin, J. NW Univ., 47, 92 Wang, 1995, Division of water-bearing systems and hydrogeological periods of oil(gas) bearing basin—with Xihu Depression in east of China sea as an example, Earth Sci. J. China Univ. Geosci., 20, 393 Lou, 2006, Vertical zonation and planar division of oil field groundwater chemistry fields in the Songliao Basin, China, J. Geol., 41, 392 Ma, 2013, The chemical characteristics and geological significance of formation water of Chang 8 subsection in Jiyuan area of Ordos Basin, J. NW Univ., 43, 253 Sun, 2001, The characteristics of hydrochemistry and its character in the middle stratum of sedimentation basin, Natural Gas Exploration and Development, 24, 47 Zhu, 2015, Geochemical characteristics and origin of formation water in western depression, liaohe basin, Earth Sci. J. China Univ. Geosci., 40, 1870 Wang, 2012, Distribution of formation water in tight sandstone reservoirs of western Sulige gas field, Ordos Basin, Oil Gas Geol., 33, 802 Zou, 2009, Global importance of “continuous” petroleum reservoirs: accumulation, distribution and evaluation, Petrol. Explor. Dev., 36, 669, 10.1016/S1876-3804(10)60001-8 Zou, 2015, Progress in China Unconventional oil & gas exploration and development and theoretical technologies, Acta Geologica Science, 89 Zou, 2013, Geological concepts, characteristics, resource potential and key techniques of unconventional hydrocarbon: on unconventional petroleum geology, Petrol. Explor. Dev., 40, 385, 10.1016/S1876-3804(13)60053-1 Zhu, 2003, Analysis on fluid dynamics and formation process of deep basin gas trap in upper Paleozoic of the Ordos Basin, Chinese Journal of Geology, 38, 31 Min, 2000, Deep basin gas in Ordos Basin, Nat. Gas. Ind., 20, 11 Ma, 2005, Discussion on characteristics and reservoiring mechanism of deep basin gas in Upper Paleozoic in Ordos Basin, Oil Gas Geol., 26, 230 Wang, 2017, Analysis on characteristics and controlling factors of gas-water distribution pattern in Su11 block of Sulige Gas Field, Unconventonal Oil & Gas, 4, 25 Yang, 2019, Gas and water layer identification and distribution characteristics in north Sulige gas field, World Well Logging Technology, 40, 21 Shi, 2011, Water-cut characteristic analysis and well logging identification methods for low-permeability lithologic gas reservoirs: a case study of the Sulige Gas Field, Nat. Gas. Ind., 31, 25 Wang, 2013, Study on the sedimentary facies and gas-water distribution regularity of Shanxi and Xiashihezi formations in Su77 ＆ Zhao51 well region, eastern Sulige Gas field, Ground Water, 35, 26 Dai, 2011, Analysis of gas-water distribution and water-producing types in the west of sulige, Special Oil Gas Reservoirs, 18, 69 Zhu, 2015, Gas water distribution rule in Su59 block of sulige gas field, Journal of Chongqing University of Science and Technology (Natural Sciences Edition), 17, 1 Zhang, 2018, Formation mechanism of tight sandstone gas in areas of low hydrocarbon generation intensity: a case study of the Upper Paleozoic in North Tianhuan depression in Ordos Basin, NW China, Petrol. Explor. Dev., 45, 73, 10.1016/S1876-3804(18)30007-7 Wang, 2018, Main-controlling factor analysis of the Upper Paleozoic gas-water distribution in northern Tianhuan Depression, Special Oil Gas Reservoirs, 25, 32 Zhao, 2012, Quasi-continuous hydrocarbon accumulation: a new pattern for large tight sand oilfields in the Ordos Basin, Oil Gas Geol., 33, 811 Xi, 2015, Exploration practices and prospect of Upper Paleozoic giant gas fields in the Ordos Basin, Nat. Gas. Ind., 35, 1 Dou, 2010, The origin of formation water and the regularity of gas and water distribution for the Sulige gas field, Ordos Basin, Acta Pet. Sin., 31, 767 Chen, 2010, Assemblage types and genetic models of the Shanxi sandbodies in Daniudi gas field the ordos Basin, Oil Gas Geol., 31, 632 Hou, 2012, Reservoir evaluation and development strategies of Daniudi tight sand gas field in the Ordos Basin, Oil Gas Geol., 33, 118 Xi, 2009, Study on the characteristics of quartz sandstone reservoir of the Neopaleozojc of two gas field in Ordos Basin, Acta Sedimentol. Sin., 27, 221 Lu, 2005, Comprehensive evaluation of sealing ability of cap rock in China's large and medium gas fields and their contribution to gas accumulation, Oil Gas Geol., 26, 742 Chen, 2013, Comparing the constant-speed mercury injection technique with the conventional mercury injection technique, Xinjiang Geol., 31, 139 Wang, 2013, Discussion of advantages and disadvantages of constant velocity mercury injection method and conventional mercury injection method, Technology and Enterprise, 19, 292 Wu, 2018, Evaluation and application of porous structure characterization technologies in unconventional tight reservoirs, Earth Sci. Front., 25, 191 Cui, 2018, Characteristics of formation water and gas-water relation in southwest sulige gas field, Ordos Basin, Natural Gas Geoscience, 29, 1364 Shao, 2019, Analysis of formation water occurrence and control factors of tight gas reservoir in He8 of Sulige X area, Mud Logging Engineering, 30, 119 Cao, 2011, Evidence analysis of natural gas near-source migration-accumulation model in the Sulige large gas province, Ordos Basin, China, Acta Petrol. Sin., 27, 857 Fu, 2008, Distribution and genesis of large-scale Upper Palaeozoic lithologic gas reservoirs on Yi-Shaan Slope, Petrol. Explor. Dev., 35, 664, 10.1016/S1876-3804(09)60099-9 Zhao, 2017, Chemical characteristics of Neogene Formation water and the research of their key controlling factors in Bohai sea area, Natural Gas Geoscience, 28, 1396 Wilson, 1993, Geochemistry and isotopechemistry of Ca-Na-Cl brines in Silurian strata, Michigan Basin, USA, Appl. Geochem., 8, 507, 10.1016/0883-2927(93)90079-V Zhou, 1995, Seawater evaporation trajectories and their application, Earth Sci. J. China Univ. Geosci., 20, 410 Zhuo, 2016, Hydrochemistry characteristic and the control factor of groundwater of caohai area in Weining county, Guizhou province, Sci. Technol. Eng., 16, 59