Results 11 to 20 of about 477 (209)

Diagenetic Evolution of Marine Carbonate Reservoirs: A Case Study from M51-2 Submember of Middle Ordovician Majiagou Formation in SE Ordos Basin, China

Geofluids, 2023
In the Yan’an gas field, southeast of Ordos Basin, the discovered natural gas reserves are 114 billion cubic meters. Highly productive gas reservoirs were formed in paleokarst.
Haiyan Wu, Ting Liang, Chao Gao, Yanjun Wu, Hongxia Cao, Jun Yu, Fenfei Bai, Jianbo Sun, Keyong Li, Yanqin Guo   +9 more
doaj   +2 more sources

Reservoir characteristics and main controlling factors of the fourth member of Ordovician Majiagou Formation in the central and eastern Ordos Basin

Shiyou shiyan dizhi, 2023
Recent exploration practice shows that the leopard porphyry dolomite reservoir in the fourth member of Ordovician Majiagou Formation in the central and eastern Ordos Basin has good exploration and development potential. Therefore, based on drilling cores,
Chunguo MOU, Jie XU, Yonghong GU, Jianpeng JIA, Wenxiong WANG, Xiucheng TAN   +5 more
doaj   +2 more sources

Characteristics, formation and evolution of pre-salt dolomite reservoirs in the fifth member of the Ordovician Majiagou Formation, mid-east Ordos Basin, NW China

Petroleum Exploration and Development, 2019
The characteristics and formation of the pre-salt dolomite reservoirs in the fifth member of Ordovician Majiagou Formation in the mid-east Ordos Basin are investigated through observation of cores and thin sections, and geochemical analysis.
Siyi FU, Chenggong ZHANG, Hongde CHEN, Anqing CHEN, Junxing ZHAO, Zhongtang SU, Shuai YANG, Guo WANG, Wentian MI   +8 more
doaj   +2 more sources

Characteristics and the formation mechanism of the dolomite reservoirs for Lower Ordovician Majiagou Formation, central Ordos Basin, China

Frontiers in Earth Science
The distribution of anhydrite contributes to the formation of high-quality dolomite reservoirs. However, the lower part of the Lower Ordovician Majiagou Formation in the central Ordos Basin shows significant natural gas potential despite in anhydrite ...
Kun Tian, Jinsong Zhou, Xiao Yin, Chunqi Xue, Jun Cao, Ling Ma, Weibo Zhao   +6 more
doaj   +2 more sources

Multiple-Stage Injection of Deep Hydrothermal Fluids in the Dolostone Reservoirs of Ordovician Majiagou Formation, Southern Ordos Basin

Frontiers in Earth Science, 2022
The Middle Ordovician Majiagou Formation in the southern Ordos Basin develops a set of sub-and peri-tidal carbonate successions that were extensively dolomitized.
Zhaolin Yang, Zhaolin Yang, Xinshe Liu, Xinshe Liu, Xu Han, Xu Han, Hu Zhou, Hu Zhou, Sha Zhan, Sha Zhan, Xiaojun Gui, Xiaojun Gui, Jihong Niu, Jihong Niu, Ke Wang   +14 more
doaj   +2 more sources

Reservoir characteristics and distribution of the Majiagou Formation in the Fuxian area of Ordos Basin, China

Energy Geoscience
The Majiagou Formation in the Fuxian area of the southeastern Ordos Basin has undergone a complex diagenetic evolution history under the influence of eustacy and the Caledonian karstification, resulting in several complex reservoir types.
Ning Gu, Juntao Zhang, Xiaohui Jin, Jiaqi Yang, Fei Yang, Lu Liu   +5 more
doaj   +2 more sources

Restoration of formation processes of dolomite reservoirs based on laser U-Pb dating: A case study of Ordovician Majiagou Formation, Ordos Basin, NW China

Petroleum Exploration and Development, 2022
To address the issue of non-unique interpretation of dolomite reservoir diagenetic and porosity evolution in the previous qualitative or semi-quantitative studies, we investigate two dolomite reservoir types, i.e.
Jingao ZHOU, Zhou YU, Dongxu WU, Junfeng REN, Daofeng ZHANG, Shaoyi WANG, Chen YIN, Yuxin LIU   +7 more
doaj   +2 more sources

Thermal History and Hydrocarbon Accumulation Stages in Majiagou Formation of Ordovician in the East-Central Ordos Basin

Energies
The marine carbonates in the Ordovician Majiagou Formation in the Ordos Basin have significant exploration potential. Research has focused on their thermal history and hydrocarbon accumulation stages, as these are essential for guiding the exploration ...
Hua Tao, Junping Cui, Fanfan Zhao, Zhanli Ren, Kai Qi, Hao Liu, Shihao Su   +6 more
doaj   +2 more sources

Tightness and sweet spot formation in moldic-pore-type dolomite reservoirs: The middle Ordovician Majiagou Formation in the eastern Ordos Basin, central China

Petroleum, 2019
The diagenetic evolution of the moldic-pore-containing gypsum dolomites of the Middle Ordovician Majiagou Formation in the eastern Ordos Basin, central China, was studied by means of petrological, mineralogical, and geochemical analyses, to improve our ...
Tong Niu, Kai Hu, Di Xiao, Xing Gao, Juanping Chen, Jian Cao   +5 more
doaj   +2 more sources

A Novel Method to Predict S-Wave Velocity of Carbonate Based on Variable Matrix and Equivalent Porous Medium Model

Geofluids
Taking the carbonate of the Majiagou Formation in the Ordos Basin as an example, this paper introduces a method for predicting the S-wave velocity of carbonate based on rock physics modeling.
Xiangzhong Chen, Jinsheng Dong, Bin Wang, Wei Li, Junhao Ma   +4 more
doaj   +2 more sources