scholarly journals Material Effects on Risk Assessment of Residual Life of Oil Drilling Rig Pipe

2020 ◽  
Vol 28 ◽  
pp. 1315-1320
Author(s):  
A. Sedmak ◽  
A. Grbović ◽  
S. Kirin ◽  
Ž. Šarkočević ◽  
R. Zaidi
Keyword(s):  
Risk Assessment ◽  
Residual Life ◽  
Oil Drilling ◽  
Drilling Rig

Risk assessment of oil drilling rig welded pipe based on structural integrity and life estimation

2020 ◽  
Vol 112 ◽  
pp. 104508 ◽  
Author(s):  
Radzeya Zaidi ◽  
Aleksandar Sedmak ◽  
Snezana Kirin ◽  
Aleksandar Grbovic ◽  
Wei Li ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Structural Integrity ◽  
Oil Drilling ◽  
Life Estimation ◽  
Drilling Rig ◽  
Welded Pipe

Comparison of experimental, numerical and analytical risk assessment of oil drilling rig welded pipe based on fracture mechanics parameters

2020 ◽  
Vol 114 ◽  
pp. 104600 ◽  
Author(s):  
Snežana Kirin ◽  
Aleksandar Sedmak ◽  
Radzeya Zaidi ◽  
Aleksandar Grbović ◽  
Živče Šarkočević
Keyword(s):  
Risk Assessment ◽  
Fracture Mechanics ◽  
Oil Drilling ◽  
Drilling Rig ◽  
Welded Pipe

scholarly journals Failure Prediction of Gas and Oil Drilling Rig Pipelines with Axial Defects

2014 ◽  
Vol 3 ◽  
pp. 955-960 ◽  
Author(s):  
I. Dimić ◽  
B. Medjo ◽  
M. Rakin ◽  
M. Arsić ◽  
Ž. Šarkoćević ◽  
...  
Keyword(s):  
Failure Prediction ◽  
Oil Drilling ◽  
Drilling Rig ◽  
Axial Defects

scholarly journals An outbreak of gastroenteritis on board an oil drilling rig in Ghana

2018 ◽  
Vol 69 (1) ◽  
pp. 51-57
Author(s):  
Michael N.K. Babayara ◽  
Bright Addo
Keyword(s):  
Oil Drilling ◽  
Drilling Rig

YARDIE EAST—1: A DIRECTIONALLY DRILLED WILDCAT

1983 ◽  
Vol 23 (1) ◽  
pp. 103
Author(s):  
G. F. Tomlin ◽  
H. W. White ◽  
R. Dumbrell
Keyword(s):  
Critical Analysis ◽  
Modern Technology ◽  
Sensitive Area ◽  
Offshore Structure ◽  
Oil Drilling ◽  
Drilling Rig ◽  
Drill Stem ◽  
Open Hole ◽  
The Indian Ocean ◽  
Environmentally Sensitive

Under the terms of a farmout agreement a well to 4200 metres true vertical depth was required to test an offshore structure in the Indian Ocean 3.4 kilometres from the Cape Range landfall. Western Australia.Due to the structure being located in an offshore environmentally sensitive area and the proximity of the structure to the Ningaloo Reef, the decision was taken by the consortium to drill a directionally controlled wildcat well, Yardie East-1, from the nearest landfall point, in a designated National Park.With the co-operation of the regulatory authorities a drilling plan was approved which entailed a critical analysis and modifications to the drilling rig, Rig No. 15 contracted from Oil Drilling and Exploration Limited, to satisfy the loads associated with a directionally drilled well to a worst condition programmed measured depth of 5650 m.Utilising modern technology the wildcat well was drilled to the target at the top of the structure at 5110 m at a penetration angle of 50° and an azimuth of 308° in 142 days from spud.Earning conditions were satisfied with an eventual total drilled depth of 5593 m. Logging and an open hole drill stem test were conducted prior to abandoning the well 186 days after spud.It is believed that Yardie East-1 is the longest well, in terms of measured depth, drilled onshore or offshore Australia.

Human health management and life/disease risk assessment: A review

2020 ◽  
Vol 14 ◽  
Author(s):  
Hui-Zhong Li ◽  
Xiang-Dong Liu ◽  
Xin Shi
Keyword(s):  
Risk Assessment ◽  
Human Health ◽  
Population Health ◽  
Health Management ◽  
Disease Risk ◽  
Residual Life ◽  
Economic Status ◽  
Health Assessment ◽  
Research Progress ◽  
Future Research

Background: Modern medical researches show that population health is closely related to population behavior, environmental factors, social and economic conditions, aging and genetic susceptibility. Therefore, it is very important to study the relationship between these factors and population health. Objective: It reviews the latest research progress in population health management and life/disease risk assessment, analyzes the existing problems in relevant researches, and proposes some improvement plans to solve the problems. Methods: It introduces the general methods of human health management and life/disease risk assessment, analyzes the defects of these methods in practical application, and then draws lessons from the methods of industrial system equipment health management and residual life prediction, and puts forward some new ideas to solve the problems. Results: In the study of health assessment, although self-assessment of health is a common method of health variables, its subjectivity and inaccuracy is a problem that cannot be ignored. In life/disease risk assessment studies, medical effect and efficacy are mainly evaluation subjects, and little consideration is given to other factors, such as behaviour, environment, socio-economic status. In the construction of statistical graphs, great individual differences, internal symbiotic variables and external impact variables are seldom considered. Conclusion: This study helps to understand the basic ideas and methods in health management and life/disease risk assessment, and proposes some future research programs based on the author's knowledge background.

Research on the Control Method of High Power APF for Oil Drilling Rig

2013 ◽  
Vol 734-737 ◽  
pp. 1450-1459
Author(s):  
Neng Qian Jiang ◽  
Ming Hua Zhu ◽  
Yi Feng Xie
Keyword(s):  
Control Strategy ◽  
Control Method ◽  
Electrical Equipment ◽  
Current Control ◽  
Harmonic Current ◽  
Oil Drilling ◽  
Drilling Rig ◽  
Harmonic Currents ◽  
Domain Transformation ◽  
And Control

The wide use of oil drilling rig brings nominated economic profits for oil drilling industry. However, it will bring about great quantities of harmonic current to the grid, lowering the power quality and reliability of the power grid. Meanwhile, harmonic currents will have a deteriorated influence to surrounding electrical equipment and grid. This paper studies the distribution characteristics of the harmonic current in the oil industry and puts forward a control strategy aiming for improving stability and reliability of the power supply system. This paper also proposes an algorithm for detecting harmonic current based on time domain transformation and control strategy based on two cascade (voltage and current) control loop. Experiment and simulation results validate the proposed control strategy.

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