Review on Subsea Pipeline Integrity Management: An Operator’s Perspective

Subsea Free Span Pipeline Damage Detection Based on Wavelet Transform under Environmental Load

During their service life, marine pipelines continually accumulate damage as a result of the action of various environmental forces. Clearly, the development of robust techniques for early damage detection is very important to avoid the possible occurrence of a disastrous structural failure. Most of vibration-based damage detection methods require the modal properties that are obtained from mea...

Halliburton sets new deepwater record with subsea pipeline testing device

Improved FTA Methodology and Application to Subsea Pipeline Reliability Design

An innovative logic tree, Failure Expansion Tree (FET), is proposed in this paper, which improves on traditional Fault Tree Analysis (FTA). It describes a different thinking approach for risk factor identification and reliability risk assessment. By providing a more comprehensive and objective methodology, the rather subjective nature of FTA node discovery is significantly reduced and the resul...

Scour Monitoring System for Subsea Pipeline Based on Active Thermometry: Numerical and Experimental Studies

A scour monitoring system for subsea pipeline based on active thermometry is proposed in this paper. The temperature reading of the proposed system is based on a distributed Brillouin optical fiber sensing technique. A thermal cable acts as the main component of the system, which consists of a heating belt, armored optical fibers and heat-shrinkable tubes which run parallel to the pipeline. Th...

Referential Integrity Revisited: An Object-Oriented Perspective

Referential integrity underlies the relational representation of objeceoriented structures. The concept of referential integrity in relational databases is hindered by the confusion surrounding both the concept itself and its implementation by relational database management systems (RDBMS). Most of this confusion is caused by the diversity of relational representations for object-oriented struc...