Natural gas hydrate (NGH) is considered one of the most promising future energy sources because of its considerable reserves and high energy density, which could meet the growing global energy dema...

Mechanical Characteristics of Hydrate-Bearing Sediment: A Review

Hydrate-induced clogging of sand-control screen and its implication on hydrate production operation

Natural gas hydrates (NGH) are prone to causing pipeline blockage in flow assurance, attracting considerable attention in the petroleum industry. This work reviews the significant progress in hydra...

Status of Natural Gas Hydrate Flow Assurance Research in China: A Review

Hydrate slurry flow characteristics influenced by formation, agglomeration and deposition in a fully visual flow loop

With the exploration and development of natural gas gradually extended to the deep sea, low-temperature and high-pressure environmental conditions and long-distance transportation make flow assurance engineers have to consider the impact of the formation and blockage of natural gas hydrates on the flow stability in the pipeline. Therefore, an inadequate understanding of the hydrate formation and plugging mechanism in a gas-rich (gas-dominant) system has become a serious obstacle to the prediction of hydrate formation and implementation of blocking prevention and control strategies. To this end, this review has conducted a comprehensive review of recent experimental investigations into hydrate formation and blockage in gas-rich systems in flow loop devices, and the physical models to characterize the clogging mechanism of hydrates established by previous scholars were summarized. In addition, the three flow patterns of the gas-rich system were divided, and the hydrate deposition mechanism corresponding to each flow pattern and the prediction model of the deposition layer thickness was summarized. Eventually, the natural gas hydrate mitigation and prophylaxis and restrain strategies used in the process of deep-sea natural gas transportation were summarized, including advantages and disadvantages of natural gas dehydration, changing the gas flow rate, and adding chemical inhibitors. The advantages and feasibility of an under-inhibited system and changing the gas flow rate for the management and prevention of hydrate blockage were emphasized. The conclusion can improve the safety index of natural gas development and transportation operations and reduce the output loss of natural gas energy and economic loss of hydrate anti-blocking. 

Hydrate Deposition Model and Flow Assurance Technology in Gas-Dominant Pipeline Transportation Systems: A Review

Ice behaviors and heat transfer characteristics during the isothermal production process of methane hydrate reservoirs by depressurization

https://onlinelibrary.wiley.com/doi/epdf/10.1002/ese3.631

Zheyuan Liu

Papers

Hydrate slurry flow characteristics influenced by formation, agglomeration and deposition in a fully visual flow loop

Ice behaviors and heat transfer characteristics during the isothermal production process of methane hydrate reservoirs by depressurization

A hydrate blockage detection apparatus for gas pipeline using ultrasonic focused transducer and its application on a flow loop

Hydrate blockage observation and removal using depressurization in a fully visual flow loop

The synthetic effect of traditional-thermodynamic-factors (temperature, salinity, pressure) and fluid flow on natural gas hydrate recovery behaviors