Well-barrier verification is having the confidence and being able to prove that “the folks on the rig will do the right thing and the equipment will function as intended when called upon to do so.” This paper describes a method of achieving that aim by analyzing well-control-barrier systems in a logical and complete manner with regard to the technical, operational, and organizational elements so that the results can be used as the basis for a straightforward means of barrier verification during operations.
Bowtie diagrams, while a useful illustrative starting point, are limited in their ability to depict well-control barriers as systems consisting of individual elements that interact with one another. Portraying them as systems enables the processes, people, and equipment required for effective well control to be analyzed in a way that is both logical and complete. Further examination of the elements reveals the critical aspects that must be checked to verify barrier effectiveness. Operationalizing the verification process is done by extending and formalizing established practices of wellsite supervisor oversight and cross checking complemented with periodic inspections.
The analysis is resource intensive because each operational mode must be considered separately to ensure completeness. Once this work is done, general themes within critical aspects emerge that enable the verification tasks to be grouped into a set of logical activities that include conversations with crewmembers to verify knowledge, criteria for drills to check on team capability, and periodic inspections to ensure equipment integrity. Although difficult to achieve, the process must be carried out in a way that engages the crews in a sense of self-preservation to avoid becoming a box-ticking exercise.
Find the paper on the HSSE-SR Technical Discipline Page free for a limited time.
Don't miss our latest HSE content, delivered to your inbox twice monthly. Sign up for the HSE Now newsletter. If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.
10 Nov 2019
- Abu Dhabi, United Arab Emirates
Through this workshop, attendees will go through the different processes involved in strategic planning including the elements of organizational SWOT, business scenario and options development, elaboration of strategic options and communication to stakeholders.
11 - 12 Sep 2019
- Bakersfield, California, USA
Combine engineering with computer programming in this 2-day course
3 Oct 2019
- Calgary, Alberta, Canada
Being Human - reserve your place at this one-day course
3 - 4 Oct 2019
- Calgary, Alberta, Canada
For a better understanding of geomechanical factors, attend this course
1 Nov 2019
- Bali, Indonesia
Registration Coming Soon
9 - 11 Nov 2019
- Abu Dhabi, UAE
The programme combines expert input, case studies, and immersive scenarios from the E&P and other industries to embed your learning and enable you to progress to the next level of your career.
Safety Leadership focuses on the ‘Human Factors’ (HF) which complement technical training to optimize reliability, safety, compliance, efficiency and risks within a team-based environment.
HSE Now is a source for news and technical information affecting the health, safety, security, environment, and social responsibility discipline of the upstream oil and gas industry.
©2003-2019 Society of Petroleum Engineers, All Rights Reserved.