Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"OIl rig"”.
-
The Response of an Oil Rig Model to Dynamic Excitation
… of a laboratory scale model of a fixed off-shore oil rig. This work forms part of a general study of condition monitoring. In the early stages, some preliminary theoretical investigations into the effect of structural system parameter variations on dynamic characteristics were carried out. The …
-
Inventory management of steel plates at an oil rig construction company
Keppel Fels produces make-to-order oil exploration rigs for the global market. Each rig requires close to 6000 metric tons of steel in the course of its production. Optimal management of this steel is very critical in this line of business. However, in recent years, demand for these rigs has been …
-
LIFE ON THE EDGE: The Archeologist, the Oil Rig, and the Newfoundlander
… of Newfoundland and Labrador's offshore oil rigs are moved near-to-shore. The rigs are slowly and incrementally deconstructed, now serving as monumental scrapyards and material salvage pantries for a new working landscape on Newfoundland's coast. Salvaged components shore up and transform …
-
Probabilistic modelling of oil rig drilling operations for business decision support: a real world application of Bayesian networks and computational intelligence.
… tool for forecasting the performance of rig drilling operations. A prototype for a tool able to forecast the future performance of a drilling operation is created using the obtained data, the statistical model and the experts' domain knowledge. This work makes the following contributions: …
-
The investigation of the effect of free organic anions on scale inhibitors used to prevent nucleation occurring in oil rig wells, using dynamic test equipment.
… then scaling will occur. This big problem in the oil industry is solved by the use of scale inhibitors. The Gryphon oil field suffers from severe scaling problems. The oil from this field is very acidic. It is believed that these anions associate themselves with the scale inhibitors and so reduce …
-
Design and dynamic modeling of an unmanned underwater vehicle for submerged surface inspection exploiting hydrodynamic ground effect
… from water tanks in nuclear reactors, submerged oil rig infrastructure, to ship hulls with hidden compartments and threats. We propose EVIE (Ellipsoidal Vehicle for Inspection and Exploration): a water jet propelled, football sized ellipsoidal Unmanned Underwater Vehicle (UUV) with a flattened …
-
DESIGN GUIDELINES: A PRACTICAL GUIDE TO PRESERVING THE HISTORIC, CULTURAL, AND ARCHITECTURAL HERITAGE OF GLADEWATER, TEXAS
<p>In October of 1930, Columbus Marion Joiner’s oil rig, “Daisy Bradford No. 3,” blew a gusher of oil high into the East Texas sky. The subsequent storm of economic activity that resulted from the discovery of the East Texas oilfield irrevocably changed the built environment of many small towns in …
-
Value proposition analysis for medium- and heavy- lift cargo unmanned aircraft systems
… proved to be the best transportation vehicle for oil rig delivery, HVAC service, and disaster relief. Additional findings showed that the most significant method to reduce cost for medium-lift cargo UAS is by applying autonomy and advanced command & control systems which facilitate the operation …
-
Factors influencing the incidence rates of injuries and accidents among seafarers and rig workers providing support to the WA offshore oil and gas industry
… with injuries and accidents among seafarers and rig workers providing support to the WA offshore oil and gas industry. These incidents cause significant personal and economic burdens for employees, employers and the community in general. A sample of 484 participants were recruited from a …
-
The numerical analysis of turbulent flow around off-shore structures
… and a rudimentary representation of an offshore oil platform stucture. The prediction procedure was first tested for grid refinement and optimum solution domain size until profiles at several locations for selected variables showed little change with further increase of domain size and grid …
-
Temporal and Spatial Assessment of PAHs in Water, Sediment, and Oysters as a Result of the Deepwater Horizon Oil Spill
On April 20, 2010, BP's Deepwater Horizon oil rig exploded leaking over 200 million gallons of crude oil into the Gulf of Mexico for 84 days. Exposure to oil-associated polycyclic aromatic hydrocarbons (PAHs) in the water and sediment could severely impact the aquatic organisms inhabiting the Gulf …
-
Value-informed space systems design and acquisition
… satellite that provides hurricane information to oil rig operators using nested Monte Carlo modeling and simulation. Probability models of stakeholders' beliefs, and economic models of pay-offs are developed and integrated with a spacecraft payload generation tool. The case study investigates the …
-
Media diplomacy in the South China Sea disputes: Vietnam, China and the Philippines 2012 – 2016
… crises: the Scarborough Shoal dispute, the oil rig crisis and the SCS arbitration case. During the period of the crises (2012 – 2016), although the claimant states avoided conflicts at sea, they changed the status quo pertaining to the control and the nature of some of the maritime features …
-
Hybrid Modelling and Optimisation of Oil Well Drillstrings
The failure of oil well drillstrings due to torsional and longitudinal stresses caused by stick-slip phenomena during the drilling operation causes great expense to industry. Due to the complicated and harsh drilling environment, modelling of the drillstring becomes an essential requirement in …