... Abstract In shallow marine sediments, gas accumulations and hydrates are significant geohazards to subsea infrastructure, drilling, and production. Therefore, predicting their occurrence is crucial to ensure offshore drilling safety and submarine infrastructure security. In this study, we...

... and the continued increase in demand for energy will define if and when these resources will be exploited on a large scale. ghsz methane hydrate basin marine sediment gas hydrate screening exploration hydrate accumulation hydrate resource conventional petroleum system approach offshore basin...

... and maturities. The compositional ranges of the thermogenic and biogenic end members have been empirically derived from a large database of drilled-hole gas data and various theoretical considerations. In addition to this literature base, tens of thousands of near-surface marine sediment cores have been acquired...

... Abstract The detection and measurement of migrated hydrocarbons in near-surface marine sediments is a relatively routine exploration method to investigate issues of hydrocarbon charge. The presence of near-surface migrated thermogenic hydrocarbons provides strong evidence that an active...

... Abstract Gas hydrates bind immense amounts of methane in marine sediments. If produced cost effectively, they can serve as a stable energy supply. No viable technologies for extracting gas hydrates from deep ocean deposits have been developed to date. Due to the shallow thickness, low hydrate...

... to the atmosphere, including using low carbon fuels (e.g., natural gas) and CO2 capture and storage. There are vast quantities of methane in the form of gas hydrates in marine sediments and permafrost regions. However, there are many technological challenges in recovering this low carbon fuel. As for CO2 storage...

...) estimates that more than 80% of methane produced each year in the anoxic marine sediments is consumed through the zone of sulfate reduction. Significant advances have been made in recent years in understanding the microbial communities intercepting and consuming methane from anoxic environments...

... intelligence offshore technology conference stability zone continental slope hydrate deposit marine sediment accumulation deposit gas hydrate deposit fracture upstream oil & gas gas hydrate methane reservoir characterization sediment hydrate new deposit accumulation model migration...

.... In this paper, we present correlations by which well log data can be used to estimate the material properties that determine the stability of marine sediments against mechanical failure. We propose that the strength of sediments depends on the details of how hydrate grows within the pore space of sediments...

... in interpretation of similar features. stress state basin apparent overconsolidation sediment university marine sediment basin slope area drilling operation underconsolidation northwestern gulf offshore technology conference calcasieu basin otc 13157 overconsolidation proceedings mexico...

... Abstract Oceanic methane hydrate and associated gases occur in continental slope marine sediments in very large quantities. Current interest is being driven by the economic potential of these methane deposits. But their affect on the global carbon cycle and climate change, seafloor stability...

... they occur within continental shelves but mainly in land areas, whereas oceanic hydrates are concentrated in the seafloor (Fig. 1). Oceanic gas hydrate occurs in the Hydrate Stability Zone (HSZ), which is a zone of thermodynamic stability that extends downward into the marine sediment from the seafloor...

... sediment concentration marine sediment oxidation pressure vessel OTe 8323 Remote Detection of Petroleum Seepage in Sea Floor Sediments by Measurement of Electrical Potential K. F. M. Thompson, Petrosurveys, Inc., J. Holt, and G. Kennedy, Harbor Branch Oceanographic Institution, Fort Pierce, Florida...

... Abstract A method is presented to determine the cormpressional velocity and bulk density of unlithified marine sediments directly from multi-offset, high resolution seismic data. These measurements can be used to estimate the Iithology and elastic moduli of marine sediments. The method...

... thickness is known to be about 600 m in about 3 km Water depth at average heat flows. Because the clathrate can occur as an impermeable blanket that has considerable mechanical strength, it can seal off porosity and permeability and form gas traps in the deep oceans in the upper 1 km of marine sediments...

... cm of the seafloor. INTRODUCTION Costs for laboratory gas chromatographic (GC) analysis of Polynuclear Aromatic Hydrocarbons (PAH's) associated with marine sediments are high ($300 to $600 per sample); costs increase significantly for further identification and quantification by GC/MS. Because...

... ABSTRACT A small micro-computer system with analog-to-digital sampling intervals to 30 microseconds has been developed for field processing of shallow seismic data. This digitizing capability plus an absorption model for marine sediments has allowed the development of a system for predicting...

... layer resistivity resistivity measurement resistivity method field data interpretation permafrost proceedings formation factor sea floor marine sediment international conference sediment theoretical curve reservoir characterization thickness resistivity data electrical resistivity...

... ABSTRACT A physically consistent theory for elastic wave propagation through Coulomb-damped poro-elastic media is developed to model the dynamic behaviors of the marine sediments in general The transformation of the water wave due to the sea-seabed interaction is solved analytically based...

... anomaly island anomaly crater marine sediment upstream oil & gas shelikof strait concentration alaska peninsula continental shelf cook inlet earthquake structural geology vane shear strength strait sediment OTe 4118 ENVIRONMENTAL GEOLOGY OF SHELIKOF STRAIT, oes SALE AREA 60, ALASKA...