1. Background 2. A Rubber Experiment and the Constitutive Model 3. Mechanical Behavior and Sealing Performance of the Rubber Sealing Rings 4. Metal-rubber Sealing Structure in the Roller Cone Bit 5. Stator Rubber of the Positive Displacement Motor (PDM) 6. Sealing Structure of the Pump 7....

We assess the informativeness for stock markets of proven reserves of oil and gas, and embedded CO2 in those reserves. Based on a two-step regression approach, we attempt to test the relationship between proven reserves, CO2 embedded in those reserves and stock market value controlling for the...

Natural gas hydrate (NGH) technology holds great promise in natural gas storage and transportation. Utilization of promotor can effectively improve NGH formation kinetics. In this work, we constructed -SO3--rich hydrogel clathrate (poly(styrenesulfonate-co-acrylamide), (PSS-co-AAm)) as promoter...

Cover -- Contents -- List of Figures -- Acknowledgements -- Introduction -- 1. Rethinking Responsibility and Governance in Resource Extraction - Owen Logan and John-Andrew McNeish -- Part I: Resource Sovereignties -- 2. On Curses and Devils: Resource Wealth and Sovereigntyin an Autonomous...

A number of countries have recently discovered and are developing oil and gas reserves. Policy makers in such countries are anxious to obtain the greatest benefits for their economies from the extraction of these exhaustible resources by designing appropriate policies to achieve desired goals....

In order to study the behavioral characteristics of the pore-scale hydrate formation, this experiment employs a high-pressure-resistant visible model in an etched glass plate to study the pore-scale methane hydrate formation and reveal its growth law s in porous media. The experiment shows that...

The recent development literature stresses that countries that receive large revenues from natural resource endowments typically raise less revenue from domestic taxation, and that this creates governance problems because the lower domestic tax effort reduces the incentive for the public...