... Abstract The current paper complements the Moridis et al. (2009a) review of the status of the effort toward commercial gas production from hydrates. We aim to describe the concept of the gas hydrate petroleum system, to discuss advances, requirement and suggested practices in gas hydrate...

... Gas hydrates typically are present in sediments as fine grains in the pore space. They may also be present as nodules, thin layers, or massive blocks in the sediments. When they are part of the matrix structure, they appear to cement sand grains, become load bearing, and provide mechanical...

.... These options of transporting gas from oil and gas field to markets include pipelines, liquefied natural gas, compressed natural gas, gas to solids (hydrate), gas to liquids, gas to wire and other gas to commodity methods. The paper provides an overview of the challenges facing present transportation modes...

... Abstract Methane gas hydrates are cages of water molecule that trap small, low molecular weight gas molecules e.g. methane, ethane, hydrogen sulfide etc. the enormous quantity of gas stored in them (1m 3 G.H = 180m 3 ) makes them an important area of research for the scientist and petroleum...

... Abstract Gas hydrates are a vast energy resource with global distribution in the permafrost and in the oceans. Even if conservative estimates are considered and only a small fraction is recoverable, the sheer size of the resource is so large that it demands evaluation as a potential energy...

... methods for offshore applications are the compactness and reliability of process equipment. Water vapour is the most common impurity in natural gas mixtures. At very high gas pressures within the transportation systems hydrate can easily form even at relatively high temperatures. Gas dehydration...

... Abstract Gas-hydrates are crystalline substances composed of water and gas, mainly methane, in which a solid water lattice accommodates gas molecules in a cage like structure. Large methane-gas hydrate reservoirs have been found on the North Slope of Alaska that can be exploited as a future...

... Abstract This paper details three field applications of combined low dose hydrate (LDHI) and corrosion inhibitor (CI) chemicals in different assets in the Southern North Sea (UKCS) gas producing area. The design and application philosophy is discussed as well as the criteria necessary to manage...

... Abstract Gas hydrates are a significant resource of natural gas exist both on-shore buried under the permafrost and off-shore buried under oceanic and deep lake sediments. Recent investigations consider the possibility of sequestering carbon dioxide (CO 2 ), a greenhouse gas (GHG), in gas...

... and heat under conditions typical of common natural hydrate deposits (i.e., in the permafrost and in deep ocean sediments) in complex formations, and can describe binary hydrocarbon systems involving methane. EOSHYDR2 includes both an equilibrium and a kinetic model of hydrate formation and dissociation...

... Abstract Deposits of naturally occurring methane hydrate have been identified in permafrost and deep oceanic environments with global reserves estimated to be twice the total amount of energy stored in fossil fuels. The fundamental behavior of methane hydrate in natural formations, while poorly...

... Abstract Two low dosage gas hydrate inhibitors, antiagglomerant type and a combination antiagglomerant/kinetic polymeric inhibitor have been successfully field tested in a gas producing well. The well located in Canadian foothills posed challenges for the operators. High pressure, low...

... Abstract Methane hydrates represent a potentially enormous supply of natural gas, assuming the technology can be developed for commercial gas production from this reservoir type. An important part of this required technology is the development of mathematical models for predicting methane...

... Sequences sediments, were less prone to severe hole erosion. After running and cementing the 340mm (13-3/8") surface casing to 677m depth, the cement plug was drilled out and the drilling mud was displaced with new mud. In drilling the main hole, including the gas hydrate layers, a KC1/polymer...

... Abstract Low dose kinetic hydrate inhibitors, developed as an alternative to thermodynamic inhibition of gas hydrates, are a branch of specialty treatment chemicals that is still considered "novel". Such inhibitors have only been a commercially viable alternative to hydrate prevention...

... and hydrate formation. In addition, at such final compressor discharge pressures, the acid gas becomes a liquid or a dense phase when cooled to ambient temperatures. While experimental results of studies of the physical properties of acid gas mixtures without hydrocarbon components have not been published...

... ABSTRACT Dehydration is an essential step in the processing of natural gas to meet pipeline specifications. Water removal is required to prevent condensation of an aqueous phase which can lead to hydrate formation and corrosion in the gas handling system. The purpose of this paper is to review...

...-proven process to improve economics in some areas of gas production. Engineers familiar with modern gas plant operation, particularly cryogenic plants, are acutely aware of the need for gas dehydration. This concern for hydrate prevention carries over into low temperature separation in the field...

...OBJECTIVES OF THE DEPRESSURIZATION MODEL As mentioned, this model simulates the production of gas from a gas reservoir capped by an impermeable hydrate formation. The transient pressure and temperature distributions are calculated in order to determine if the depressurization that accompanies...

... ABSTRACT Research efforts undertaken by the Morgantown Energy Technology Center, Department of Energy, have focused on the geologic assessment of gas hydrate deposits existing in two different settings (onshore and offshore). Preliminary assessments have been completed for the North Slope...