Download or read book Modeling the Fate of Synthetic Base Fluid in Gulf of Mexico Sediments with Diffusion reaction Equations Via Explicit Method written by Alan H. Nguyen and published by . This book was released on 2006 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modelling the Fate of Synthetic Base Drilling Fluids in the Gulf of Mexico Sediment written by Veysel Demir and published by . This book was released on 2003 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Degradation of Synthetic Based Drilling Mud Base Fluids by Gulf of Mexico Sediments Final Report written by United States Department of the Interior and published by CreateSpace. This book was released on 2015-06-22 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important consideration in the environmental assessment of deep-sea drilling operations in the Gulf of Mexico is the discharge of cuttings coated with synthetic-based fluids (SBF). Synthetic-based fluids are one type of nonaqueous drilling fluid and are used in drilling mud to lubricate the drill bit, control reservoir pressure, and bring rock chips, or cuttings, to the surface. Synthetic-based fluids, which can be composed of linear alpha olefins, internal olefins, esters, or paraffins, are released into the marine environment as a residue on the cuttings as they are discharged. This study addressed the fate of the synthetic base fluid portion of the drilling mud in Gulf of Mexico sediments by determining the potential of marine sediment microbes to degrade representative SBF under deep-sea conditions. A model to predict how fast the sediment will recover under realistic conditions was developed to form a scientific basis for evaluating impacts from the discharge of SBF in the deep-sea. This study also examined the effect of the discharge on the microbial ecology of the sediments.
Download or read book Degradation of Synthetic Based Drilling Mud Base Fluids by Gulf of Mexico Sediments Final Report written by Deborah J. Roberts and published by BiblioGov. This book was released on 2013-06 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bureau of Ocean Energy Management (BOEM) is a agency within the U.S. Department of Interior. BOEM has four sections that cover the United States' waters: Alaska OCS Region, Pacific OCS Region, Gulf of Mexico OCS Region and the Atlantic OCS Region. The Gulf of Mexico OCS Region is responsible for almost 160 million acres of lands off the coast of Texas, Louisiana, Mississippi, Alabama, and Florida. Currently, more than 31 million acres are leased for gas and oil development, and six million are actually producing oil and natural gas. The Gulf of Mexico Region is in charge of addressing the Environment, Leasing and Plans, and Resource Evaluation. The publish a variety of documents with topics such as: Marine Biology, Natural Gas, Oil Spills, Transportation, Chemical Products, etc. This is one of those publications.
Download or read book Degradation of Synthetic based Drilling Mud Base Fluids by Gulf of Mexico Sediments written by and published by . This book was released on 2006 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Sediments Northwest Gulf of Mexico written by Scripps Institution of Oceanography and published by . This book was released on 1960 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Near bottom Flow and Sediment Resuspension in the Northern Gulf of Mexico written by Yu Wang and published by . This book was released on 2018 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of flow in the benthic boundary layer on sediments in the northern Gulf of Mexico was investigated by developing a numerical flow model based on high-resolution bathymetry data and ADCP time series data in a 500 ©-- 500 ©-- 100 m^3 domain. We determined flow velocities from the Navier-Stokes equations and modeled turbulence using a k-Îæ model. Flow velocities were used to assess sediment resuspension by comparing simulated near-bottom flow velocities with experimentally determined critical shear velocities. The percentage of time when simulated flow velocities exceed this threshold was mapped to show the spatial distribution of resuspension probability. In-situ imagery data was compared to resuspension probability through cluster analysis. Results showed that seafloor topography leads to variations in flow velocities across the domain and with predominant flow direction. Simulated resuspension is episodic; some but not all predicted resuspension events coincide with storm events recorded with buoys.
Download or read book Freshwater Microplastics written by Martin Wagner and published by Springer. This book was released on 2017-11-21 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This volume focuses on microscopic plastic debris, also referred to as microplastics, which have been detected in aquatic environments around the globe and have accordingly raised serious concerns. The book explores whether microplastics represent emerging contaminants in freshwater systems, an area that remains underrepresented to date. Given the complexity of the issue, the book covers the current state-of-research on microplastics in rivers and lakes, including analytical aspects, environmental concentrations and sources, modelling approaches, interactions with biota, and ecological implications. To provide a broader perspective, the book also discusses lessons learned from nanomaterials and the implications of plastic debris for regulation, politics, economy, and society. In a research field that is rapidly evolving, it offers a solid overview for environmental chemists, engineers, and toxicologists, as well as water managers and policy-makers.
Download or read book Recent Sediments Northwest Gulf of Mexico written by Scripps Institution of Oceanography and published by . This book was released on 1983 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Fine Sediment and Salinity in the Northern Gulf of Mexico Using a Three dimensional Model written by João L. Rego and published by . This book was released on 2006 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Response of Microbial Populations in the Gulf of Mexico to Synthetic Based Fluid Exposure written by Kavita Swaminathan and published by . This book was released on 2005 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microbial Analysis of Gulf of Mexico Sediments Using Molecular and Growth Based Techniques written by Divya Gangumalla and published by . This book was released on 2003 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diagenetic Models and Their Implementation written by Bernard P. Boudreau and published by Springer Verlag. This book was released on 2011-10-05 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of sedimentary chemistry and its associated processes is becoming far more mathematical. This new emphasis is being driven by pressures originating from both basic research and field applications. There is a growing desire to gain a quantitative understanding of the reasons for the natural chemical changes observed in sediments as they are buried. Past textbooks have not emphasized the steps necessary to develop transport-reaction (diagenetic) models themselves nor methods for their solution. This book attempts to correct this situation by presenting a detailed account of model formulation by explaining some useful solution techniques. The choice of material illustrates methods that are simple to explain and implement, yet powerful enough to attack even the most complicated diagenetic problems. Computer programs that implement and illustrate the numerical methods are also made available.
Download or read book Permeability and Porosity of Hydrate bearing Sediments in the Northern Gulf of Mexico written by and published by . This book was released on 2015 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrate-bearing sands are being actively explored because they contain the highest concentrations of hydrate and are the most economically recoverable hydrate resource. However, relatively little is known about the mechanisms or timescales of hydrate formation, which are related to methane supply, fluid flux, and host sediment properties such as permeability. We used logging-while-drilling data from locations in the northern Gulf of Mexico to develop an effective medium theory-based model for predicting permeability based on clay-sized sediment fraction. The model considers permeability varying between sand and clay endpoint permeabilities that are defined from laboratory data. We verified the model using permeability measurements on core samples from three boreholes, and then used the model to predict permeability in two wells drilled in Walker Ridge Block 313 during the Gulf of Mexico Gas Hydrate Joint Industry Project Leg II expedition in 2009. We found that the cleanest sands (clay-sized fraction
Download or read book Statistical Models for Sediment Detritus and Dissolved Absorption Coefficients in Coastal Waters of the Northern Gulf of Mexico written by and published by . This book was released on 2008 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We developed statistically-based, optical models to estimate tripton (sediment/detrital) and colored dissolved organic matter (CDOM) absorption coefficients from physical hydrographic and atmospheric properties. The models were developed for northern Gulf of Mexico shelf waters using multi-year satellite and physical data. First, empirical algorithms were developed, based on comparison with a large data set of cruise measurements from northern Gulf shelf waters; these algorithms were then applied to a time series of ocean color satellite imagery for 2002-2005. Unique seasonal timing was observed in satellite-derived optical properties.
Download or read book Recent Sediments Northwest Gulf of Mexico written by F. P. Shepard and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of a Hydrodynamic and Sediment Transport Model for Guidance of Response Efforts Related to the Deepwater Horizon Oil Spill in the Northern Gulf of Mexico Along the Coast of Alabama and Florida written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-03-04 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: U.S. Geological Survey (USGS) scientists have provided a model-based assessment of transport and deposition of residual Deepwater Horizon oil along the shoreline within the northern Gulf of Mexico in the form of mixtures of sand and weathered oil, known as surface residual balls (SRBs). The results of this USGS research, in combination with results from other components of the overall study, will inform operational decisionmaking. The results will provide guidance for response activities and data collection needs during future oil spills.
