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A Method for Estimating Quasi-Static Riser Deformation and Applied Forces From Sparse Riser Inclination Measurements

ABSTRACT: The objective of this paper is to report progress and recent findings related to the remediation of damaged high-pressure, high-temperature (HPHT) flowlines in deep water. The flowline repair technology currently being developed utilizes an R&D process of systematically...

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03
Jun 2015

Estimation of Most Probable Maximum From Short-Duration or Undersampled Time-Series Data

ABSTRACT: The most probable maximum (MPM) is the extreme value statistic commonly used in the offshore industry. The extreme value of vessel motions, structural response, and environment are often expressed using the MPM. For a Gaussian process, the MPM is a function of the root-mean...

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01
Jun 2015

Repair and Intervention of HPHT Flowlines

ABSTRACT: The objective of this paper is to report progress and recent findings related to the remediation of damaged high-pressure, high-temperature (HPHT) flowlines in deep water. The flowline repair technology currently being developed utilizes an R&D process of...

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05
May 2015

Exploring the Benefits of Wellhead Fatigue Monitoring

ABSTRACT: This paper examines the benefits achieved through fatigue monitoring of wellheads.  As an introduction, conservatisms in analytical predictions of wellhead fatigue life are cited.  In addition, considerations for increasing wellhead fatigue resistance are reviewed...

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04
May 2015

Assessing Uncertainties in Wellhead System Fatigue Life Prediction

ABSTRACT: This paper examines sources of uncertainty in present analysis methodologies used for the prediction of wellhead system fatigue lives.  For this study, the sources of uncertainty are classified as those parameters that affect the prediction of loads and stresses (the...

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04
May 2015