This thesis is concerned with one aspect of government management regimes for offshore oil and gas - the allocation of rights over these resources. The method by which rights may be acquired, the scope of the rights, and the terms and conditions upon which they are obtained are matters of great significance in determining the overall effectiveness of a management regime. Four coastal nations have been chosen for study. They are the United States of America, the United Kingdom of Great Britain and Northern Ireland, Canada and Australia. The systems adopted by these countries for allocation of offshore oil and gas rights are similar in that they rely mainly upon private enterprise for the development of the resources, but otherwise there are considerable differences. In the first place, the thesis contains a brief statement of the nature and extent of the rights of coastal nations over offshore oil and gas resources at international law. This is to provide the basic framework within which the management regimes of the four countries must operate. Secondly, there is a detailed description of the allocation systems in each of the four countries, with special attention being given to the historical background of the laws which establish the systems, to the provisions of those laws, and to the practical operation of the systems. Finally, there is a comparative assessment of the systems in terms of specific objectives which should form the basis of a government management regime for offshore oil and gas. / Law, Peter A. Allard School of / Graduate

Thesis (M.A.)--Brigham Young University. David M. Kennedy Center, 2003. / Includes bibliographical references (p. 82-85).

No description available.

M.A. dissertation, University of Hong Kong, 1976.

Thesis (M.A.)--University of Hong Kong, 1976. / Also available in print.

The presence of gas and oil in some sand formations decreases the seismic velocity and density to such an extent that anomalously large reflections coefficients are encountered at fluid contacts. Geerstma and Gassmann's theories are equivalent and provide a good way to study the physical properties that affect the elastic behavior of the porous rock. The fluid-contact reflectivity (gas-water, oil-water) can be well estimated based on the brine saturated velocity alone. A comparison between the estimated and observed fluid-contact reflectivities on seismic and well log data from an Offshore prospect showed a remarkable agreement. / text

This thesis presents estimates of marine gas hydrate distribution and concentration obtained from various geophysical methods. The study area is located in the accretionary prism of the Northern Cascadia subduction zone, offshore Vancouver Island. Canada. The primary objective of this study was to assess the applicability of a suite of geophysical methods in estimating marine gas hydrate distribution and concentration. The measurements tested are downhole log electrical resistivity and seismic velocity, multi-channel seismic (MCS) velocity, and seismic amplitude vs. offset (AVO) of a gas hydrate-related bottom-simulating reflection (BSR). The downhole log data are from Integrated Ocean Drilling Program Expedition 311, along a transect of four wells, and the seismic data are from a conventional 2-D MCS line along the well transect. Gas hydrate distribution and concentration estimates along the well transect exhibit high spatial variability, both from site to site, and within any given site. On average. estimates from electrical resistivity measurements give 5-15% gas hydrate pore space saturation. whereas velocity-based estimates are 15-25%. Some intervals in both cases show concentrations over 40%. Nonlinear Bayesian inversion of seismic AVO data yields a gas hydrate concentration estimate of 0-23% of the pore space. These results lead to the conclusion that resistivity and velocity data are effective tools for estimating marine gas hydrate concentration. The main uncertainty in the resistivity analysis is the in situ pore fluid salinity, whereas the main uncertainty in the velocity study is the magnitude of the bulk sediment velocity increase associated with gas hydrate occurrence (related to how gas hydrate forms). It is shown here that AVO of a gas hydrate BSR is not a useful method to estimate marine gas hydrate concentration. The method lacks the shear-wave velocity resolution necessary to add useful constraints to what is already known from compressional-wave velocity information.

Thesis (Ph. D.)--University of Wyoming, 2005. / Title from PDF title page (viewed on Nov. 1, 2007). Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1975. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 163-167).

Thesis (Ph. D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2008. / Committee Chair: Dr. Boris Mizaikoff; Committee Member: Dr. Andrew Lyon; Committee Member: Dr. Donald R. Webster; Committee Member: Dr. Facundo M. Fernandez; Committee Member: Dr. Joseph Montoya. Part of the SMARTech Electronic Thesis and Dissertation Collection.