Results 41 to 50 of about 235 (148)

Probabilistic Evaluation of Hydraulic Fracture Performance Using Ensemble Machine Learning

Geofluids, Volume 2022, Issue 1, 2022., 2022
Evaluation of hydraulic fracture (HF) performances is critical to develop unconventional resources such as tight oil and gas. We present a probabilistic evaluation approach that integrates ensemble machine learning with Monte Carlo simulation. In the method, we employ the ensemble learning to develop a predictive model between well productivity and its
Xiaoping Xu, Xianlin Ma, Jie Zhan, Yating Wang   +3 more
wiley   +1 more source

Pore Structures of the Lower Permian Taiyuan Shale and Limestone in the Ordos Basin and the Significance to Unconventional Natural Gas Generation and Storage

Geofluids, Volume 2022, Issue 1, 2022., 2022
In the Ordos Basin, multiple sets of coal seams, organic‐rich shale, and limestone are well developed in the Permian Taiyuan Formation, which are favorable targets for collaborative exploration of various types of unconventional natural gas resources, including coalbed methane, shale gas, and tight gas.
L. Zhang, Q. Zhao, C. Wu, Z. Qiu, Q. Zhang, Y. Wang, D. Liu, D. Dong, S. Zhou, Jing Wu   +9 more
wiley   +1 more source

Evolution of prototype basin and change of tectonic-sedimentary pattern in Paleozoic, Ordos Basin

Shiyou shiyan dizhi, 2022
The Ordos Basin is a craton basin developed based on the Precambrian rift system during Permian. It has experienced two stages of evolution including the Early Paleozoic craton marginal depression and Late Paleozoic intra-craton depression.
Faqi HE, Fubin WANG, Liguo GUO, Chuan AN
doaj   +1 more source

Dolomitization of the Ordovician subsalt Majiagou Formation in the central Ordos Basin, China: fluid origins and dolomites evolution [PDF]

Petroleum Science, 2020
AbstractThe Middle Ordovician subsalt Majiagou Formation in the Ordos Basin comprises pervasively dolomitized shallow marine limestone and is a major reservoir rich in natural gas resources. Four types of dolomite matrix and cement were identified based on petrographic textures: (very) finely crystalline, non-planar to planar-s matrix dolomite (Md1 ...
Ying Xiong, Li-Chao Wang, Xiu-Cheng Tan, Yun Liu, Ming-Jie Liu, Zhan-Feng Qiao   +5 more
openaire   +1 more source

Geochemical Characteristics of Formation Water in Carbonate Reservoirs and Its Indication to Hydrocarbon Accumulation

Geofluids, Volume 2022, Issue 1, 2022., 2022
The migration path of formation water plays an indispensable role in hydrocarbon accumulation and preservation. The hydrodynamic field controls the content of various ions in formation water and is an important participant in hydrocarbon evolution. Formation water can basically be used to judge the preservation status of oil/gas reservoirs, especially ...
Zhen Sun, Zhen Yang, Xiaoning He, Cixuan Wan, Gang He, Qiang Ren, Shihu Zhao, Wei Cheng, Sisi Chen, Zhehui Jin   +9 more
wiley   +1 more source

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   +1 more source

The Resource Potential and Development Prospect of Helium in Changqing Gas Field

Geofluids, Volume 2022, Issue 1, 2022., 2022
Helium, a rare gas widely applied in high‐tech fields, is a significant strategic resource in China. The foreign‐trade dependence ratio of helium in China is 95%. The work reviewed the applications and market analysis of helium and reservoir modeling and distribution of helium in Changqing Gas Field as well as the helium extraction techniques from ...
Dahai Wang, Jinbu Li, Zhanhai Yu, Ji Zhang, Lili Liu, Feng Xiao, Changan Shan, Di Feng   +7 more
wiley   +1 more source

Optimization of Acid Fracturing Process for Carbonate Reservoirs in Daniudi Gas Field

Energies, 2022
The Daniudi gas field is located in the Ordos Basin’s northern section of the Yishan slope. The intertidal–subtidal depositional environment dominates the lithology of the Ma55 sub-member, resulting in a stable, thick-layered dark gray–gray–black ...
Yongchun Zhang, Haijun Mao, Hao Zhang, Yueli Li, Yanfang Jiang, Jiarui Li   +5 more
doaj   +1 more source

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

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   +1 more source

Geochemical characteristics and origin of dolomite: A case study from the middle assemblage of Ordovician Majiagou Formation Member 5 of the west of Jingbian Gas Field, Ordos Basin, North China

Petroleum Exploration and Development, 2014
The trace elements, rare earth elements (REE), carbon and oxygen isotopic compositions and strontium isotopes were analyzed to study systematically the geochemical characteristics and origin of the middle assemblage dolomites from the Ordovician Majiagou
Xunyun HE, Jianfeng SHOU, Anjiang SHEN, Xingning WU, Yongsheng WANG, Yuanyuan HU, Yin ZHU, Dongxiao WEI   +7 more
doaj   +1 more source