Results 11 to 20 of about 235 (148)

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

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

Vertical zonation of weathered crust ancient karst and reservoir evaluation and prediction—A case study of M55–M51 sub-members of Majiagou Formation in gas fields, central Ordos Basin, NW China

Petroleum Exploration and Development, 2013
The M55–M51 sub-members of the Middle Ordovician Majiagou Formation in the gas fields of the central Ordos Basin were taken as a case to analyze the vertical zonation characteristics of weathered crust ancient karst and to evaluate and predict reservoirs
Jiang HE, Shaoxian FANG, Fanghao HOU, Ronghui YAN, Zhongjun ZHAO, Jian YAO, Xiujun TANG, Guorong WU   +7 more
doaj   +3 more sources

Controls on Development and Classification of Gypsum Mold-Vuggy Reservoirs: A Case Study from the Majiagou Formation, Jingbian Gas Field. [PDF]

ACS Omega
This study focuses on the gypsum mold pore-type reservoir of the Ma54 1 sublayer in the Majiagou Formation, northern Jingbian Gas Field. Based on core experiments and comprehensive geological analysis, it systematically reveals the reservoir development mechanism synergistically controlled by sedimentary microfacies and multistage diagenesis, and ...
He J, Luo Y, Li W, He C, Qiao L, Ma X, Liu Q, Li H, Fang S, Zhao Z, Jiang S, Wang M.   +11 more
europepmc   +3 more sources

Characteristics and genesis of fractures in Middle Ordovician Majiagou Formation, Daniudi Gas Field, Ordos Basin

Shiyou shiyan dizhi, 2022
The Daniudi Gas Field in the Ordos Basin has great natural gas potential, but a variety of fractures with complex origins was developed in the weathering crust karst reservoirs in the Middle Ordovician Majiagou Formation.
Xianfeng PENG, Hucheng DENG, Jianhua HE, Tao LEI, Yeyu ZHANG, Xiaofei HU   +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   +3 more sources

Karstification and Its Role in the Formation of Carbonate Reservoirs: A Case Study from the Ordovician Majiagou Formation in Jingbian, Ordos Basin, North China

Minerals (Basel, Switzerland), 2023
The discovery of natural gas reserves in Lower Paleozoic carbonate formations has generated significant enthusiasm regarding the potential for oil and gas exploration in the deeper carbonate reservoirs of the Ordos Basin. Significant progress has been made in the field of natural gas exploration, especially within the carbonate reservoirs of the ...
Peng, Xiaoxia, Li, Guobin, Cheng, Xin, Guo, Ling   +3 more
exaly   +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

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

New understandings on gas accumulation and major exploration breakthroughs in subsalt Ma 4 Member of Ordovician Majiagou Formation, Ordos Basin, NW China

Petroleum Exploration and Development, 2022
Geological conditions and main controlling factors of gas accumulation in subsalt Ma 4 Member of Ordovician Majiagou Formation are examined based on large amounts of drilling, logging and seismic data.
Haiqing HE, Xujie GUO, Zhenyu ZHAO, Shengli XI, Jufeng WANG, Wei SONG, Junfeng REN, Xingning WU, He BI   +8 more
doaj   +3 more sources