Results 11 to 20 of about 482 (176)

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   +5 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   +4 more sources

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

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   +4 more sources

Pore Types and Dolomite Reservoir Genesis of the Fifth Member of the Ordovician Majiagou Formation in the Central and Eastern Ordos Basin [PDF]

Applied Sciences
The Ordovician dolomite in the Ordos Basin is an important natural gas reservoir. Exploring dolomite genesis and the factors influencing reservoir characteristics is essential for deep carbonate rock exploration.
Shilei Chen, Rong Dai, Shunshe Luo
doaj   +4 more sources

Controlling Factors of Meteoric Diagenesis in Karst Reservoirs: An Example from the Majiagou Formation, Ordos Basin, China [PDF]

Minerals, 2023
Karst reservoirs have always been a key field of oil and gas exploration. However, quantifying the process of meteoric transformation remains a persistent challenge that limits the accuracy of reservoir quality prediction. To explore the controlling factors of meteoric cementation on karst reservoirs, the Majiagou Formation of the Ordos Basin in China ...
Jiaqi Yang, Juntao Zhang, Zhiliang He, Marco Brandano, Chongyang Wu   +4 more
core   +4 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   +3 more sources

Constraints on Diagenetic Fluid Source and Genesis in Tight Dolostone Reservoir of Submember Ma55 of Ordovician Majiagou Formation in Northwestern Ordos Basin, China: Evidence from Petrology and Geochemistry

Geofluids, Volume 2022, Issue 1, 2022., 2022
Diagenetic fluids is one of the most important reservoir modifiers, their differences can result in various petrography, storage capacity, and geochemical characteristics, so clarifying the diagenetic fluids is vital for understanding dolostone origin.
Baiqiang Li, Zhenzhen Wu, Taofa Zhou, Bin Chen, Qicong Wang, Xiaoli Zhang, Fan Yang   +6 more
wiley   +3 more sources

Minerals Filling in Anhydrite Dissolution Pores and Their Origins in the Ordovician Majiagou Formation of the Southeastern Ordos Basin, China [PDF]

Geofluids, 2021
Mold pore cementation is the key factor constraining the reservoir property in the study area. The anhydrite dissolution pores in the Ordovician Majiagou Formation of southeastern Ordos Basin are commonly filled by minerals such as dolomite, calcite, pyrite, and quartz accounting for more than 90% of the total molds resulting in significant porosity ...
Lihong Liu, Chunlian Wang, Zhili Du, Jianghua Gong   +3 more
core   +4 more sources

The effect of meteoric water on the very fine crystalline dolomite reservoir in the shallow burial zone: A case study of the Ma55 submember of Majiagou Formation in Ordos Basin [PDF]

Frontiers in Energy Research, 2023
The meteoric water has obviously changed the physical properties of dolostone reservoirs in the vertical vadose zone and the horizontal phreatic zone, but its influence on the dolostone reservoirs in the shallow burial zone beneath the phreatic surface ...
Haoxiang Lan, Min Guo, Min Guo, Meiyan Fu, Meiyan Fu, Hucheng Deng, Hucheng Deng, Jon Gluyas, Wang Xu, Wang Xu, Mingyuan Tang, Dong Wu, Dong Wu, Yilin Li, Hengwei Guo   +14 more
doaj   +5 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 ...
Xiaoxia Peng, Guobin Li, Xin Cheng, Ling Guo   +3 more
exaly   +3 more sources