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Statistical Calculation of Marine Hydro-meteorological Parameters for Jacket Platform Design

Author: XuPengZuo
Tutor: DongSheng
School: Ocean University of China
Course: Hydrology and Water Resources
Keywords: Marginal oilfield Design standards Two-dimensional equivalent maximum entropy distribution Design parameters Wind velocity Wave height
CLC: P732
Type: Master's thesis
Year: 2010
Downloads: 40
Quote: 2
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Abstract


Marginal oilfield development system works as a whole set of offshore oil and gas resources of the drilling , production engineering , and marine engineering . How to provide safe and economic design standards of the marine environment conditions , for any kind of work in this system structure type is critical . Because of the complexity , randomness and diversity of marine environmental conditions the traditional marine environmental conditions, design criteria can not calculate the probability of the simultaneous occurrence of a variety of environmental conditions , often overestimate the design parameters of environmental conditions , resulting in unnecessary waste of investment , even making some marginal oil fields are not suitable for mining . Currently, how to reduce the marginal oilfield development and construction costs become the core issue of whether the development and construction constraints offshore oilfield . The papers from the marine drilling platform in which environmental conditions of China Bohai Sea in a district the 1970-1993 storms process hindcast information based on the characteristics of the process of the regional turmoil , consider the impact of turmoil frequency , application joint distribution theory , an attempt to introduce the two-dimensional maximum entropy distribution mode to the statistical analysis of the marine environment loads , and apply several different calculation method to determine the the storms parameters design standard , comparative merit reasonable to reduce engineering design parameters , which can reduce the investment cost , ultimately achieve the purpose of the exploitation of marginal oil fields . In this thesis in the statistical analysis of the Bohai Sea in a regional wind, wave edge distribution based on the constructed two-dimensional joint distribution of marginal field development structure can ensure the security , but also reduce the design standards of economic investment . The main contents are as follows: (1) Based on annual extreme value method and the threshold method of wind , waves marginal distribution of long-term statistical analysis ; ( 2 ) a single factor in extreme value distribution fitting explored ; (3 ) two-dimensional equivalent maximum entropy distribution mode proposed ; ( 4) marginal oil field development platform structure storms design standards proposed election.

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CLC: > Astronomy,Earth Sciences > Oceanography > Marine basic science > Marine Meteorology
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