Sept. 10, 2019


Description

Investigation of past incidents always reveal deficiencies that are not directly equipment-related, but may be non-technical in nature, such as procedural deviation, inadequate communication etc. Past risk assessment models only provide semi-quantitative approaches to incorporate them in the risk assessment and cannot capture their dynamic nature and dependency in a single model. Current research takes up the challenge of developing a framework and step-by-step methodology for quantitatively merging technical, operational, human and organizational factors contributing to the cumulative risk of a barrier failure. It also addresses their dynamic changes with time, considers their interactions with each other and incorporates the uncertainty of parameter estimation to assess the cumulative risk in a facility.

Syeda Zohra Halim, MSc, PhD, in her talk on Cumulative Risk Assessment to Analyze Increased Risk due to Impaired Barriers in Offshore Oil and Gas Facilities, will discuss the methodology developed for extracting statistical data of contributing factors behind barrier failures from past incident investigation reports. The study produced a generic dataset of contributing factors for fire incidents in the US outer continental shelf (OCS). Data showed that failures rates of contributors were non-constant. They are modelled as non-homogenous Poisson process with Power Law and Hierarchical Bayesian Analysis (HBA) is utilized to predict failure within a time period from the generic data. Results show reliability growth for contributors related to ‘design flaw’ and ‘inadequate job safety analysis’ in the US OCS, although a majority of other contributors show deterioration. In the next stage, near-miss data from a particular facility is incorporated to obtain a plant-specific understanding of how and when their next critical failure may occur. Interaction among contributing factors are measured from the analysis of investigation reports. Finally, the cumulative risk assessment model for an offshore unit with safety instruments is developed where the contributing factors are mapped onto a Bayesian Network to provide probability distributions of barrier failure and subsequent incidents. A case study is adopted which assumes 5 near-miss incidents in a facility over a given time and shows how extracted information from the investigation can be utilized to update the generic data to obtain the probability distribution of individual barrier failure so that the existing cumulative risk in the facility can be understood.

Jim Pettigrew, Principal Investigator and Director of Operations of the Ocean Energy Safety Institute, will present an overview of the offshore-focused research at the Mary Kay O’Connor Process Safety Center and the Ocean Energy Safety Institute (OESI).


Featured Speakers

Speaker: Syeda Zohra Halim, MSc, PhD
Speaker Syeda Zohra Halim, MSc, PhD
Syeda Zohra Halim completed her PhD in Chemical Engineering in Spring 2019 with Mary Kay O’Connor Process Safety Center at Texas A&M University.  Her research focused on developing a model for assessing cumulative risk arising from impaired barriers in offshore oil and gas facilities. In her work, she identified and ...

Syeda Zohra Halim completed her PhD in Chemical Engineering in Spring 2019 with Mary Kay O’Connor Process Safety Center at Texas A&M University.  Her research focused on developing a model for assessing cumulative risk arising from impaired barriers in offshore oil and gas facilities. In her work, she identified and analyzed organizational issues that contribute to increased risk and utilized Hierarchical Bayesian Analysis to show how such contributors can be quantified and brought together with technical factors to understand their dynamic holistic effect on risk.


A keen supporter of promoting process safety, Zohra has actively been involved in multiple process safety related projects alongside her research work. Such projects include developing a PSM implementation plan for an international industrial corporation, analyzing BSEE incident investigation databases to determine leading causes behind incidents in offshore oil and gas facilities, developing process safety course materials for an international university, working in collaboration with IChemE to develop a roadmap for process safety for the 21st century and writing a book chapter on process safety for petroleum engineering students. She also works as a team member with the Ocean Energy Safety Institute (OESI) and volunteers frequently in their forums and workshops. Zohra has won the Texas Sea Grant Special Award, Lamiya Zahin Memorial Safety Scholarship and has held first position thrice at the Annual MKOPSC Poster Competition. She was elected Media Chair of the Chemical Engineering Graduate Students’ Association (ChEGSA).


Before coming to Texas A&M University, Zohra completed her B.Sc. and M.Sc. in Chemical Engineering from Bangladesh University of Engineering and Technology (BUET).  

Full Description

Speaker: James Pettigrew, MS (Oceanography)
Speaker James Pettigrew, MS (Oceanography)
Retired Navy Captain Jim Pettigrew is the Principal Investigator and Director of Operations for the Ocean Energy Safety Institute (OESI). A partnership between Texas A&M University, University of Houston, and University of Texas – Austin; OESI provides a forum for dialogue, shared learning and cooperative research among academia, government, industry and ...

Retired Navy Captain Jim Pettigrew is the Principal Investigator and Director of Operations for the Ocean Energy Safety Institute (OESI). A partnership between Texas A&M University, University of Houston, and University of Texas – Austin; OESI provides a forum for dialogue, shared learning and cooperative research among academia, government, industry and other non-governmental organizations. OESI’s focus is offshore-related technologies and activities that help ensure safer and environmentally responsible offshore operations. Jim assumed the position of Director in May 2014, and Principal Investigator in December 2018.


Throughout his three decades in the Navy, Pettigrew worked predominantly in operational oceanography, surface warfare and information warfare; managing and mitigating risk at all levels of operations. He served most recently as Chief of Staff for the Commander, Naval Meteorology and Oceanography Command where he was responsible for the direction and leadership of a team of 150 people, executing a $300 million annual budget, the operations of 4,000 personnel worldwide, the nation's Master Clock, two world-class supercomputing facilities, and six military Oceanographic Survey Ships. He also had the privilege and honor of serving as the Commanding Officer for the Navy’s Global Atmospheric and Ocean Modeling Supercomputing Center (Fleet Numerical, in Monterey, CA) and as the Commanding Officer for the Navy’s only forward deployed Operational Oceanography support center in Yokosuka, Japan. He served twice in the Pentagon and was Joint-qualified serving with the U.S. Space Command in Colorado Springs.


Pettigrew received his Masters of Science in Physical Oceanography and Meteorology from the Naval Postgraduate School, and received his Bachelors of Science in Ocean Engineering from Texas A&M University.

Full Description

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Organizer

Angelo Pinheiro, MS, CSP, CRSP, CPSA, CPEA

 


 


Date and Time

Tue, Sept. 10, 2019

11:30 a.m. - 2 p.m.
(GMT-0500) US/Central

Event has ended

If you do not have a full-time job in the oil and gas industry, are a full-time student or Member in Transition (MiT) member, and you do not see a discounted registration fee for students/MiT regarding this event, please contact the GCS manager at spe-gcs@spe.org.


Location

Marathon Oil Tower & Conference Center

5555 San Felipe
Houston, Texas 77056
United States of America

Visitors Parking has 3 levels. There are 2 elevators (V) for you to take to the LOBBY level. At the lobby: When you exit the elevator, you will see 6 other elevators Take any one of these 6 (C) UP to the 10th level Exit the elevators to the Conference ...

Visitors Parking has 3 levels.


There are 2 elevators (V) for you to take to the LOBBY level.


At the lobby:


When you exit the elevator, you will see 6 other elevators


Take any one of these 6 (C) UP to the 10th level


Exit the elevators to the Conference Center

Full Description