Abstract One of the most serious incidents that can occur in offshore drilling and exploration is damage to well structure subsea components which result uncontrolled hydrocarbon release environment present a safety hazard rig personnel. Over decades, there have been substantial developments mathematical models algorithms used analyze stresses on related define operational integrity windows ope...

SUMMARY Use and interpretation of wireline lookahead VSP combined with LWD seismic while drilling and LWD sonic log for base of salt prediction, a case study offshore Brasil deep offshore Campos. It aimed to assist drilling decisions by obtaining a more accurate prediction of Base of Salt depth. Setting the 9-5/8" casing point was key from a drilling perspective.

A good turbine casing cooling design should control the thermal stress and maintain a reasonable tip clearance between blade casing. Since inlet temperature has been increased yearly, influence of radiation on become more significant. Therefore, heat transfer characteristics considering effect need to be precisely predicted. In this study, theoretical model is established for describing turbofa...

The antennas installed in mobile devices are small and low-profile compared to wavelength at the operating frequency. In general, horizontal elements short monopole have low radiation resistance. Low resistance requires matching circuit between 50 Ω feed line decreases efficiency. By using characteristic mode, excitation of ground plane improve has been investigated. This paper proposes structu...