Integrated risk management: a Petrobras application in offshore well construction safety to minimize critical emergency disconnections

Abstract

In order to avoid mistakes and to save a great deal of time in analysis, an innovative methodology was developed that can analyze the well operations and rig characteristics involved to define the best emergency disconnect sequence (EDS) available. A solution was developed based on the characteristics of the rigs and blowout preventers (BOPs), and six variables were considered that directly affect the choice of EDS. All possible combinations of 64 scenarios were analyzed, and the priority of choice of the EDS was defined empirically. This paper presents an approach to EDS risk management and examples of exposure time (time without riser safety margin and shear capability) for the same well, which can be lowered from 13% to 0.1%. The impact of this reduction is related to the ability of the BOP to cut some of the heavy casings, in addition to improved availability of EDS modes. This implementation opened up many possibilities for the performance of risk exposure analysis, enabling comparison of several BOP configurations of contracted rigs and selection of the best options. This innovative approach allowed a better management of the rig schedules, prioritizing safety aspects and making it possible to allocate the fleet in a systematic way.

Determinants of Intelligent Energy Implementation Towards Firm Performance: A Conceptual Framework Moderated by Board Gender Diversity and Board Sustainability Committee

“…Complexity grows massively if more than a single role is involved, as activities now need to be coordinated which requires effective collaboration (Epsis, 2021) Since the turn of the millennium, most major oil companies and global operating vendor/service companies have increasingly addressed oil exploration and operation enabled by information and communication technology as their future way of doing business. Integrated Operations (IO) is a concept used to describe this new way of doing business (de Campos Lima, Aranha, de Castro, Lima, Hougaz & de Souza Terra, 2018;Rosendal & Hepso, 2013).…”

Research on Quantitative Assessment and Dynamic Reasoning Method for Emergency Response Capability in Prefabricated Construction Safety

“…Chen et al (2017) [6] proposed a dynamic evaluation method for emergency response to rainstorm construction accidents based on system dynamics, but the approach has limitations in handling fuzzy information. Additionally, other studies have explored strategies to enhance construction emergency capabilities from risk identification [7], emergency resource allocation [8], and emergency organizational management [9] perspectives. Overall, these studies provide theoretical support and methodological foundations for improving emergency response capability in prefabricated construction safety, which is crucial for preventing accidents and reducing losses.…”