Sir Humphry Davy witnessed the first chlorine hydrate crystallizing in 1811. Couple of century later his discovery, natural gas hydrates has begun to play an important role in energy business. From being a mere chemical curiosity, they have proven to be a nuisance for the natural gas industry. The problem of hydrate induced blockage in “wet gas” flow systems has been widely reported and became ...

Carbon Capture and Storage (CCS) is a method to reduce anthropogenic greenhouse gas emissions thereby mitigating global warming. In CCS, carbon dioxide (CO2) is captured from fossil fuel-fired power plants or other large point-source emitters, purified, compressed and injected deep underground into subsurface formations at depths of or greater than 800m. At such depths CO2 is in a supercritical...

The offshore Castor Underground Gas Storage (UGS) project had to be halted after gas injection triggered three M4 earthquakes, each larger than any ever induced by UGS. mechanisms that seismicity in the crystalline basement at 5–10 km depth 1.7 remain unknown. Here, we propose a combination of explain observed seismicity. First, critically stressed Amposta fault, bounding storage formation, cre...

The use of Horizontal wells is a common method underground natural gas storage (UGS), but there still need to discuss whether they are more suitable for slotted liner or perforation completions. To address this issue, numerical model developed predict the injection rate horizontal while considering skin factor. Here, novel uncoupled iteration employed determine factor deriving from turbulence i...

Carbon dioxide capture, use, and storage (CCUS) issues are currently gaining more attention due to climate change. One of the CCUS methods may be use CO2 as cushion gas in underground (UGS). Typically, high-permeability structures preferable for purposes. High permeability ensures good flow reservoirs well bottom-hole pressure maintenance. However, case a part gas, it mixes with natural within ...