Results 21 to 30 of about 3,491,748 (279)
About trends of improvement of technological schemes for methane recovery from the rock-coal massif [PDF]
E3S Web of Conferences, 2019 Purpose of the research was to improve efficiency of underground gas drainage from the rock-coal massif. It is substantiated that most promising solution of the problem of increasing efficiency of gas drainage from the massif is to mine additional gas ...
Kurnosov Serhii, Zerkal Volodymyr
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Meikuang Anquan, 2020 It is of great significance to find out the mutual interference mechanism between CBM drainage wells to rationally arrange well networks and improve CBM recovery.
ZHENG Junling, JIN Yi, LI Weina, LIU Xiaokun, WANG Cheng
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Lithosphere, 2022 The key point in coalbed methane (CBM) wells is to pump out the confined water to produce gas. Traditional drainage coalbed methane recovery methods have different limitations and characteristics. A new drainage gas recovery method called double-tube gas
Chen Li +4 more
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Energy Geoscience, 2023 Gas-oil gravity drainage is a recognized major contributor to production in fractured reservoirs. While various empirical and analytical methods have been proposed to model this process, many of them contain assumptions that are questionable or require ...
Marzieh Alipour, Mohammad Madani
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Recovery ... reporting overview; Connecticut recovery; CT recovery ... progress
, 2010 Updated quarterly; Began in 2009.; Title from home page last modified 10/29/2009 (viewed Oct. 29, 2009).; At head of title: State of Connecticut.; "On October 1, state agencies that have received Recovery Act funds began reporting to the federal ...
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Energy Science & Engineering, 2023 Gas drainage is an important measure to ensure energy safety in coal mines. However, for mines with high gas content and low permeability, the critical question is how to enhance the drainage effect of drilling.
Xi Jie +3 more
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Full-cycle prediction of gas production variations in gas wells using different production methods [PDF]
E3S Web of ConferencesGas production from gas wells is affected by formation pressure and wellbore outflow during gas production. To increase the daily gas production and obtain smooth and efficient gas production gas wells, methods such as wellbore shut-in pressure recovery ...
Gao Wei +4 more
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Energy Exploration & Exploitation, 2020 Multilayer drainage is one of the important technologies for coalbed methane (CBM) production in China. In this study, a multi-field fully coupled mathematical model for CBM production was established to analyze the multilayer drainage of CBM well group ...
Qiujia Hu +7 more
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Enhanced Gas Recovery in Water-Drive Gas Reservoirs: Theoretical Advances, Engineering Practices, and Future Trends [PDF]
E3S Web of ConferencesWater invasion is a core factor constraining efficient development and ultimate recovery in water-drive gas reservoirs. Non-uniform water invasion can reduce recovery by 15%-50% compared with water-free gas reservoirs of the same type.
Yang Jianping +6 more
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Shiyou jixie, 2022 In order to overcome the shortcomings of drainage gas recovery by intermittent gas lift such as traditionally determining working system by experience and manual field operation,a complete intelligent monitoring system design scheme was proposed,and a ...
Wang Yi +5 more
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