• CBCMs significantly improved the hydrate formation kinetics and storage capacity. • Carbonyl groups was identified as the active sites enhancing CH 4 hydrate formation. • Functional groups tuned hydrogen-bonding network results in the enhanced…
Hydrate technology is of considerable significance for industrial natural gas storage and transportation. In this paper, the hydrate formation in surfactants with different ratios of alkyl glycosides (APG) and sodium dodecyl sulfate (SDS) was studied…
Gas hydrates are non-stoichiometric inclusion compounds formed by the incorporation of molecules of nonpolar gases, for example, hydrocarbons, into the cavity of the network structure of water. The most remarkable property of hydrates is their high…
The so-called blue hydrogen production process, integrates conventional fossil fuel-based production methods with carbon capture and storage technologies. This combination reduces total CO2 emissions, compared to conventional grey fossil-fuel-based…
Dual (thermodynamic and kinetic) inhibition effects of piperazine (PZ) and hydrazine (HZ), two representative diamines, on the formation of CH4 hydrate were investigated, primarily focusing on thermodynamic, spectroscopic, and computational analyses…
Semiclathrate hydrates of natural gas have shown potential applications in natural gas storage and transportation. Promoters, viz., tetra-n-alkyl ammonium bromide (TBAB) and tetrahydrofuran (THF) have positive impacts on the phase stability condition…
Clathrate hydrates are one of the proposed mediums for transportation and storage of natural gas. Among the known hydrate structures, structure H seems the most fitting crystal due to its moderate formation pressure and high storage capacity. In the…
In the present work, the novel technique of dielectric barrier discharge (DBD) humid air plasma has been presented for processing and functionalization of nanoparticles and enhancing the rate of methane hydrate production. It is shown that the rate…
Gas hydrates, dominated by methane, are commonly found in hydrocarbon seep environments, and are recovered in piston and gravity cores from marine sediments. With the presence of hydrocarbons and other geological and geophysical parameters, gas…
Hydrate formation is a major flow assurance issue for underwater multiphase pipelines. The heavy fractions in crude oil make it more complicated. However, the impact of a single fraction in oil on hydrate behaviors is still poorly understood. In…
Gas hydrates are non-stoichiometric inclusion compounds formed by the incorporation of molecules of nonpolar gases, for example, hydrocarbons, into the cavity of the network structure of water. The most remarkable property of hydrates is their high…
• CBCMs significantly improved the hydrate formation kinetics and storage capacity. • Carbonyl groups was identified as the active sites enhancing CH 4 hydrate formation. • Functional groups tuned hydrogen-bonding network results in the enhanced…
• CBCMs significantly improved the hydrate formation kinetics and storage capacity. • Carbonyl groups was identified as the active sites enhancing CH 4 hydrate formation. • Functional groups tuned hydrogen-bonding network results in the enhanced…
Gas hydrates, or clathrate hydrates, formation can dramatically damage the transmission lines and operational equipment of the natural gas dominated system, which in turn to ruptured pipeline or destruction equipment. To prevent these problems,…
Gas hydrates, dominated by methane, are commonly found in hydrocarbon seep environments, and are recovered in piston and gravity cores from marine sediments. With the presence of hydrocarbons and other geological and geophysical parameters, gas…
Accurate modeling of clathrate hydrates phase behaviors is of significant importance to petroleum industry. It is well known that accurate consideration of the cavity force field can lead to more accurate predictions of incipient conditions of…
The recent discovery of natural gas hydrates in the Qiongdongnan Basin (QDNB) during the fifth “China National Gas Hydrate Drilling Expedition” (GMGS5) confirms the great potential of gas hydrate resources within this basin. Based on the…
Methane recovery from the natural gas hydrates (NGH) represent the largest source of hydrocarbon energy in the world. However, the existing methods of methane recovery are constrained by low efficiency and ecological impact. One method which can…
Gas hydrates can form in the presence of saline water produced from the gas and oil reservoirs under specific thermodynamic conditions. One of the best ways to prevent gas hydrate formation is to inject hydrate inhibitors like mono ethylene glycol…
In this work, the self-preservation of small (tens of μm) methane hydrate particles dispersed in oils was studied. The results of this work show that stirring in itself has no effect on the self-preservation of hydrate particles in oil suspensions.…
Particle agglomeration plays a major role in the mechanism of gas hydrate accumulation and pipeline plugging. Gas hydrates are solid inclusion compounds composed of natural gas trapped in a three-dimensional water lattice that can form in petroleum…
Natural gas is one of the most fundamental resources of energy in the world, the use of energy is growing constantly so that based on the current forecasts, the consumption of natural gas to the end of year 2030, will be 207 TCF. Gas hydrates are…
In the present work, the novel technique of dielectric barrier discharge (DBD) humid air plasma has been presented for processing and functionalization of nanoparticles and enhancing the rate of methane hydrate production. It is shown that the rate…
Solidified Natural Gas (SNG) technology offers an attractive option for compact and safe, large-scale natural gas storage. Gas storage technologies are gaining traction due to the increasing demand for natural gas and the expected transition to…
The so-called blue hydrogen production process, integrates conventional fossil fuel-based production methods with carbon capture and storage technologies. This combination reduces total CO2 emissions, compared to conventional grey fossil-fuel-based…
Numerous hydrocarbon seep sites at the continental shelf, slope, and in the deep water basin are known to feed the Black Sea water reservoir of dissolved methane. In this study, we identified the likely sources of gas and oil that are emitted at four…
Based on the requirements of low hydration heat and maximum temperature of cement slurry used in deep-water natural gas hydrate formation, a novel cement slurry containing phase change micro-encapsulated thermal control material was prepared and…
After the 2008 surge in fracturing of horizontal wells, unconventional oil and gas reservoirs have found a new lease in their lives. They have catapulted the United States of America to energy independence first time in 70years. This unprecedented…
Particle agglomeration plays a major role in the mechanism of gas hydrate accumulation and pipeline plugging. Gas hydrates are solid inclusion compounds composed of natural gas trapped in a three-dimensional water lattice that can form in petroleum…
After the 2008 surge in fracturing of horizontal wells, unconventional oil and gas reservoirs have found a new lease in their lives. They have catapulted the United States of America to energy independence first time in 70years. This unprecedented…
Gas hydrates can cause serious problems in oil and gas industry. Several measurements, connected to formation of gas hydrate, were performed on our department in last decade. Using the collected data, a preventive inhibitor dosing system can be…
This paper presents complex permittivity measurements obtained with open-ended coaxial probes during formation of gas hydrates in oil-continuous systems. Gas hydrates are water solids, where gas molecules are captured in cages in the crystal…
One of the problems in the transportation of hydrocarbons through product pipelines in the gas industry is the safe operation and uninterrupted pumping, ensuring the required rheological properties. Prevention of formation of gas hydrates by gas…
Gas hydrates are non-stoichiometric inclusion compounds formed by the incorporation of molecules of nonpolar gases, for example, hydrocarbons, into the cavity of the network structure of water. The most remarkable property of hydrates is their high…
For natural gas hydrate (NGH) exploitation, the in-situ electrical heating has been proved as a promising production method in laboratory experimental scale. But the results in this scale are difficult to reliably reflect field trials due to…
Since the success of recovering natural gas from hydrate-bearing reservoirs (HBRs) in Shenhu Area of the northern South China Sea in 2017, China has successfully produced natural gas from hydrates in permafrost and ocean environments. It certainly…
ABSTRACT Shenhu area in South China Sea includes extensive collapse and diapir structures, forming high-angle faults and vertical fracture system, which functions as a fluid migration channel for gas hydrate formation. In order to improve the imaging…
Influenced by the low temperature of seawater, non-equilibrium formation of natural gas hydrate (hereinafter referred to as hydrate) in the wellbore of a gas/water-producing well is prominent, which increases the risks of safety, such as wellbore…
ABSTRACT Natural gas hydrate, oil and gas were all found together in the Qilian Mountain permafrost area, northeast of Qinghai-Tibet Plateau, China. They are closely associated with each other in space, but whether they are in any genetic relations…
Natural gas hydrate, a potential energy source, is clean and occurs abundantly in nature. Enhancing the gas production efficiency from gas hydrate-bearing sediments (GHBS) is of great significance to promote its industrial development. In this study,…
Gas hydrate formation is an issue in natural gas production. In offshore deepwater scenarios the situation is aggravated by the inaccessibility, salinity, low temperatures and high pressures. Monoethylene glycol (MEG) injection in well-heads is one…
Gas hydrates have endowed with great potential in gas storage, and rapid formation of gas hydrates is critical to use this novel technology. This work evaluated the natural gas hydrate formation process, which was compared from six parameters,…
The win-win situation of CO2 storage in natural gas hydrate reservoirs is attractive for several reasons in addition to the associated natural gas production. Since both pure CO2 and pure methane form structure I hydrate there is no expected volume…
Reservoirs of clathrate hydrates of natural gases (hydrates), found worldwide and containing huge amounts of bound natural gases (mostly methane), represent potentially vast and yet untapped energy resources. Since CO2-containing hydrates are…
Solidified Natural Gas (SNG) technology offers an attractive option for compact and safe, large-scale natural gas storage. Gas storage technologies are gaining traction due to the increasing demand for natural gas and the expected transition to…
Storage of CO2 in natural gas hydrate reservoirs may offer stable long term deposition of a greenhouse gas while benefiting from methane production, without requiring heat. By exposing hydrate to a thermodynamically preferred hydrate former, CO2, the…
Due to economical and safety advantages in comparison to existing technologies, gas hydrates show a vast potential with regard to several technical applications, like gas separation and storage. Therefore, an increased interest in applied gas hydrate…
Aim of this work is locating how CO2 replacement into methane hydrate deposits may be performed, in order to increase both methane recovered and carbon dioxide stored quantities. The experimental section deals with the study of natural gas hydrate…
Gas hydrates have endowed with great potential in gas storage, and rapid formation of gas hydrates is critical to use this novel technology. This work evaluated the natural gas hydrate formation process, which was compared from six parameters,…