skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Factors Controlling Short-Range Methane Migration of Gas Hydrate Accumulations in Thin Coarse-Grained Layers

Journal Article · · Geochemistry, Geophysics, Geosystems
DOI:https://doi.org/10.1029/2019GC008405· OSTI ID:1559497

Natural gas hydrate is often found in marine sediment in heterogeneous distributions in different sediment types. Diffusion may be a dominant mechanism for methane migration and affect hydrate distribution. We use a 1–D advection–diffusion–reaction model to understand hydrate distribution in and surrounding thin coarse–grained layers to examine the sensitivity of four controlling factors in a diffusion–dominant gas hydrate system. These factors are the particulate organic carbon content at seafloor, the microbial reaction rate constant, the sediment grading pattern, and the cementation factor of the coarse–grained layer. We use available data at Walker Ridge 313 in the northern Gulf of Mexico where two ~3–m–thick hydrate–bearing coarse–grained layers were observed at different depths. The results show that the hydrate volume and the total amount of methane within thin, coarse–grained layers are most sensitive to the particulate organic carbon of fine–grained sediments when deposited at the seafloor. The thickness of fine–grained hydrate free zones surrounding the coarse–grained layers is most sensitive to the microbial reaction rate constant. Furthermore, it may be possible to estimate microbial reaction rate constants at other locations by studying the thickness of the hydrate free zones using the Damköhler number. In addition, we note that sediment grading patterns have a strong influence on gas hydrate occurrence within coarse–grained layers.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC04-94AL85000; FE0013919; FE0023919
OSTI ID:
1559497
Alternate ID(s):
OSTI ID: 1548017
Report Number(s):
SAND-2019-8736J; 677864
Journal Information:
Geochemistry, Geophysics, Geosystems, Vol. 20, Issue 8; ISSN 1525-2027
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (52)

Clathrate Hydrates of Natural Gases book September 2007
On the Importance of Advective Versus Diffusive Transport in Controlling the Distribution of Methane Hydrate in Heterogeneous Marine Sediments journal July 2018
Gulf of Mexico Gas Hydrate Joint Industry Project Leg II logging-while-drilling data acquisition and analysis journal June 2012
Gas hydrate resource potential in the Terrebonne Basin, Northern Gulf of Mexico journal June 2012
Productivity, sedimentation rate, and sedimentary organic matter in the oceans—I. Organic carbon preservation journal December 1979
Archie's Saturation Exponent for Natural Gas Hydrate in Coarse-Grained Reservoirs journal March 2018
Dynamic multiphase flow model of hydrate formation in marine sediments journal January 2007
The cementation factor of Archie's equation for shaly sandstone reservoirs journal August 1999
Bacterial populations and processes in sediments containing gas hydrates (ODP Leg 146: Cascadia Margin) journal April 1996
Burial-driven methane recycling in marine gas hydrate systems journal October 2018
Short-range, overpressure-driven methane migration in coarse-grained gas hydrate reservoirs: Short Advection in Gas Hydrate Systems journal September 2016
Methane and other Hydrocarbon Gases in Marine Sediment journal May 1983
The interaction of climate change and methane hydrates: Climate-Hydrates Interactions journal February 2017
The sources and deposition of organic matter in the Late Quaternary Pigmy Basin, Gulf of Mexico journal April 1990
Linking basin-scale and pore-scale gas hydrate distribution patterns in diffusion-dominated marine hydrate systems: DIFFUSION-DRIVEN HYDRATE GROWTH IN SANDS journal February 2017
Methane hydrate formation in thick sand reservoirs: 1. Short-range methane diffusion journal January 2018
Finite Difference Methods for Ordinary and Partial Differential Equations book January 2007
The effect of temperature on organic carbon degradation in marine sediments journal December 2015
Architecture of gas-hydrate-bearing sands from Walker Ridge 313, Green Canyon 955, and Alaminos Canyon 21: Northern deepwater Gulf of Mexico journal June 2012
Methane solubility in marine hydrate environments journal January 2004
Formation of natural gas hydrates in marine sediments: 2. Thermodynamic calculations of stability conditions in porous sediments journal October 1999
Gas hydrate occurrence from pore water chlorinity and downhole logs in a transect across the northern Cascadia margin (Integrated Ocean Drilling Program Expedition 311): GAS HYDRATE ACROSS THE CASCADIA MARGIN journal August 2008
Preservation of Organic Matter in Marine Sediments:  Controls, Mechanisms, and an Imbalance in Sediment Organic Carbon Budgets? journal February 2007
Abundant Early Palaeogene marine gas hydrates despite warm deep-ocean temperatures journal November 2011
Oceanic Methane Biogeochemistry journal February 2007
Thermogenic vent gas and gas hydrate in the Gulf of Mexico slope: Is gas hydrate decomposition significant? journal January 2001
Capillary controls on methane hydrate distribution and fracturing in advective systems: CAPILLARY CONTROLS ON HYDRATES journal January 2011
Diffusion coefficients in nearshore marine sediments1 journal May 1982
Natural gas hydrates occupying fractures: A focus on non-vent sites on the Indian continental margin and the northern Gulf of Mexico journal December 2014
Fabric of gas hydrate in sediments from Hydrate Ridge—results from ODP Leg 204 samples journal April 2007
Topography- and fracture-driven fluid focusing in layered ocean sediments: FLUID FOCUSING IN LAYERED SEDIMENTS journal April 2011
Gas hydrate reservoirs and gas migration mechanisms in the Terrebonne Basin, Gulf of Mexico journal September 2017
A numerical model for the formation of gas hydrate below the seafloor journal January 2001
Formation of natural gas hydrates in marine sediments: 1. Conceptual model of gas hydrate growth conditioned by host sediment properties journal October 1999
Effect of hydrostatic pressure and salinity on the stability of gas hydrates journal March 1990
A semi-Lagrangian Crank-Nicolson algorithm for the numerical solution of advection-diffusion problems: SLCN ALGORITHM journal April 2006
Gas hydrate occurrences and their relation to host sediment properties: Results from Second Ulleung Basin Gas Hydrate Drilling Expedition, East Sea journal November 2013
Capillary effects on hydrate stability in marine sediments journal January 2011
Rising methane gas bubbles form massive hydrate layers at the seafloor journal November 2004
A model for the diffusive growth of hydrate saturation anomalies in layered sediments journal January 2011
Methane Hydrate Formation in Thick Sandstones by Free Gas Flow journal June 2018
Determining the porosity exponent m and lithology factor a for sandstones and their control by overburden pressure: A case study from the Gulf of Suez, Egypt journal September 2018
A steady state model for marine hydrate formation: Constraints on methane supply from pore water sulfate profiles: STEADY STATE HYDRATE MODEL journal October 2003
A review of the geochemistry of methane in natural gas hydrate journal November 1995
Diffusion coefficients of sulfate and methane in marine sediments: Influence of porosity journal February 1993
Short migration of methane into a gas hydrate-bearing sand layer at Walker Ridge, Gulf of Mexico: SHORT MIGRATION OF METHANE journal February 2013
Marine gas hydrates in thin sand layers that soak up microbial methane journal April 2010
Testing short-range migration of microbial methane as a hydrate formation mechanism: Results from Andaman Sea and Kumano Basin drill sites and global implications journal July 2015
Downhole physical property-based description of a gas hydrate petroleum system in NGHP-02 Area C: A channel, levee, fan complex in the Krishna-Godavari Basin offshore eastern India journal October 2019
Methane hydrate formation in turbidite sediments of northern Cascadia, IODP Expedition 311 journal July 2008
Preservation of Organic Matter in Marine Sediments: Controls, Mechanisms, and an Imbalance in Sediment Organic Carbon Budgets? journal May 2007
Oceanic Methane Biogeochemistry journal May 2007

Figures / Tables (14)