Scientific Results from the Mallik 2002 Gas Hydrate Production Research Well Program, Mackenzie Delta, Northwest Territories, Canada
01 Jul 2005-Iss: 585
TL;DR: The results of the Mallik 2002 Gas Hydrate Production Research Well Program (MHP-2002) are described in this article, which is a joint effort of 300 scientists from Japan, Canada, Germany, the United States and India.
Abstract: This publication chronicles the results of the Mallik 2002 Gas Hydrate Production Research Well Program which is a joint effort of 300 scientists from Japan, Canada, Germany, the United States and India. As a leader in gas hydrate research, Japan has collaborated with the Geological Survey of Canada on a gas hydrate project at the Mallik site. The JAPEX/JNOC/GSC et al. Mallik 3L-38, 4L-38 and 5L-38 exploratory wells were drilled in the Mackenzie Delta on the coast of the Beaufort Sea in Canada's Northwest Territories to examine the feasibility of methane gas production from permafrost-related gas hydrate. The Mallik site is one of the world's most intensely studied gas hydrate sites. Several research projects were initiated, including coring of the gas hydrate zones, extensive geophysical and mud-gas logging, reservoir-evaluation testing, cross-well tomographic seismic studies, and vertical seismic profiling. The 63 technical research papers and accompanying databases included in this publication provide details on new research and insight on gas hydrate production testing. In addition, new studies are reported on in situ physical and geophysical properties of gas hydrate. New appraisals on the relevance of gas hydrate to energy, climate and geohazard research were also presented. This publication also includes an interactive database available as an appendix on a DVD. refs., tabs., figs.
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TL;DR: A review of the current understanding of phenomena involved in gas hydrate formation and the physical properties of hydrate-bearing sediments can be found in this paper, where the magnitudes and interdependencies of these properties are critically important for predicting and quantifying macroscale responses of hydrates to changes in mechanical, thermal, or chemical boundary conditions.
Abstract: [1] Methane gas hydrates, crystalline inclusion compounds formed from methane and water, are found in marine continental margin and permafrost sediments worldwide. This article reviews the current understanding of phenomena involved in gas hydrate formation and the physical properties of hydrate-bearing sediments. Formation phenomena include pore-scale habit, solubility, spatial variability, and host sediment aggregate properties. Physical properties include thermal properties, permeability, electrical conductivity and permittivity, small-strain elastic P and S wave velocities, shear strength, and volume changes resulting from hydrate dissociation. The magnitudes and interdependencies of these properties are critically important for predicting and quantifying macroscale responses of hydrate-bearing sediments to changes in mechanical, thermal, or chemical boundary conditions. These predictions are vital for mitigating borehole, local, and regional slope stability hazards; optimizing recovery techniques for extracting methane from hydrate-bearing sediments or sequestering carbon dioxide in gas hydrate; and evaluating the role of gas hydrate in the global carbon cycle.
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TL;DR: In this paper, the authors comprehensively review the relevant studies of natural gas hydrates and propose their comments, discuss the limitations and challenges, raise some questions and put forward some suggestions from their points of view.
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Journal Article•
TL;DR: In this article, the authors discuss the distribution of natural gas hydrate accumulations, the status of the primary international RD Klauda and Sandler, 2005), reservoir lithology, and rates and their production potential.
Abstract: Toward Production From Gas Hydrates: Current Status, Assessment of Resources, and Simulation-Based Evaluation of Technology and Potential George J. Moridis, SPE, Lawrence Berkeley National Laboratory; Timothy S. Collett, SPE, US Geological Survey; Ray Boswell, US Department of Energy; M. Kurihara, SPE, Japan Oil Engineering Company; Matthew T. Reagan, SPE, Lawrence Berkeley National Laboratory; Carolyn Koh and E. Dendy Sloan, SPE, Colorado School of Mines This paper was prepared for presentation at the 2008 SPE Unconventional Reservoirs Conference held in Keystone, Colorado, U.S.A., 10–12 February 2008. 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 source. In this review paper, we discuss the distribution of natural gas hydrate accumulations, the status of the primary international RD Klauda and Sandler, 2005). Given the sheer magnitude of the resource, ever increasing global energy demand, and the finite volume of conventional fossil fuel reserves, gas hydrates are emerging as a potential energy source for a growing number of nations. The attractive- ness of gas hydrates is further enhanced by the environmental desirability of natural gas (as opposed to solid or liquid) fuels. Thus, the appeal of gas hydrate accumulations as future hydrocarbon gas sources is rapidly increasing and their production potential clearly demands technical and economic evaluation. The past decade has seen a marked acceleration in gas hydrate RD Paull et al., 2005), reservoir lithology, and rates and
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TL;DR: In the Gulf of Mexico (GoM), the gas hydrate Joint Industry Project (the JIP) provided an initial confirmation of the occurrence of gas hydrates below the GoM seafloor as mentioned in this paper.
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TL;DR: In this article, the authors evaluate the gas production potential of disperse, low-saturation (SH < 0.1) hydrate accumulations in oceanicsediments using numerical simulation and conclude that despite wide variations in theaforementioned parameters (covering the entire spectrum of suchdeposits), gas production is very limited, never exceeding a few thousandcubic meters of gas during the 10-year production period.
257 citations