Technip

The effect of a tuned liquid damper (TLD) consisting of a partially liquid-filled rectangular tank attached with a vertical porous baffle, on the motion responses of a floating pontoon in waves, has been systematically investigated. The hydrodynamic problem of a floating pontoon in waves and sloshing dynamics under the swaying and rolling excitation are solved independently by a matched eigenfunction expansion method (MEEM). The vertical porous baffle for additional damping of the TLD is modeled using an equivalent linearized quadratic velocity model. The motion responses (sway, heave, and roll) of a floating pontoon, coupled with the TLD, are validated by self-conducted experiments at a two-dimensional wave tank. The TLD with no-baffle creates a double-peaked roll response amplitude operator (RAO) by adding a newly emerging resonance peak at the first sloshing-mode natural frequency. The installation of a vertical porous baffle removes the sloshing-mode resonance peak due to increased damping and shifts the remaining resonance peak to the low-frequency region. It is concluded that the TLD system with a porous baffle does not contribute to reducing the sway and heave motion significantly and is very effective in reducing the roll motion response of a floating pontoon, if the appropriate TLD geometry, baffle porosity, and immersion depth of a baffle are selected.

In 2025, industry-wide collaboration through the IOGP and WHO led to a global consensus on mandatory psychological safety indicators in HSE audits. ADNOC's 2024-2025 pilot programs have shown a 45% increase in help-seeking behaviors and a 38% reduction in stigma around mental health disclosures among offshore workers. The Oil & Gas industry operates in high-pressure, high-risk environments where physical safety is prioritized, often at the expense of mental well-being. However, research shows that workpla& hearce harassment, chronic stress, and psychological distress significantly impact operational safety, workforce retention, and, in extreme cases, self-harm and suicide. According to the International Labour Organization (ILO), one in five workers worldwide experiences workplace harassment, while the World Health Organization (WHO) links over 700,000 suicide deaths annually to workplace-related mental health struggles. Within the ADNOC Group and other leading energy companies, significant efforts have been made to improve HSE culture, workforce engagement, and psychological safety, yet mental well-being and harassment prevention remain underrepresented in traditional safety frameworks. This paper explores how unchecked workplace harassment ranging from verbal aggression and discrimination to retaliation against safety whistleblowers can escalate into severe psychological distress. It includes the structure of a framework for early intervention, mental well-being support, and suicide prevention, developed around three key pillars: Psychological Assessment of Managers & Supervisors - Implementing emotional intelligence (EI)-based evaluations, implicit bias testing, and stress management training to identify high-risk leadership behaviors and equip managers with mental health literacy.AI-Driven Early Detection & Support Systems - Utilizing AI-powered behavioral analytics, sentiment analysis, and digital well-being surveys to detect patterns of distress, isolation, and declining mental health before they escalate.Multi-Tiered Support Networks - Establishing peer-led advocacy programs, mental health first responders, and confidential crisis counseling services, with an emphasis on offshore, remote, and rotational workers who face heightened psychological isolation. This study integrates real-world data and case studies from Oil & Gas companies, focusing on: Industry-Wide Data Analysis -mental health statistics from WHO, ILO, IOGP, and ADNOC's workforce well-being initiatives.Workplace Harassment and Mental Health Surveys -surveys across ADNOC Group, upstream, downstream, and EPC operations to assess the prevalence of workplace harassment and its impact on psychological well-being.Psychological Profiling of Leaders - psychometric assessments of supervisors and managers to measure EI, bias awareness, and stress tolerance, identifying patterns that correlate with toxic workplace cultures.Pilot Implementation of AI-Driven Detection Systems -machine-learning-based sentiment analysis tools and anonymous mental health check-ins to monitor early warning signs of distress and harassment-linked psychological decline.Initial findings indicated that:Workers in offshore, rotational, and high-risk roles report higher stress, anxiety, and burnout levels, with one in three employees experiencing some form of workplace harassment.Low psychological safety correlates with increased operational risks, leading to higher incident rates, reduced safety compliance, and increased absenteeism.Psychological assessment of managers helps identify toxic leadership traits early, allowing intervention through training, coaching, and targeted leadership development programs.Confidential peer-support networks and AI-driven early warning systems significantly reduce mental health stigma, encourage early intervention, and improve employee well-being outcomes. For ADNOC and other Oil & Gas companies to create a mentally resilient workforce, mental well-being must be integrated as a core pillar of HSE and ESG governance. Beyond traditional safety metrics, organizations must recognize psychological safety as a direct contributor to operational excellence. This paper highlights how proactive intervention strategies can reduce workplace harassment, mitigate mental health risks, and ultimately save lives. To embed mental well-being and suicide prevention into corporate HSE, HR, and ESG strategies, the following recommendations are proposed: Mandatory Psychological Safety Training - Equip managers and supervisors with mental health literacy, de-escalation skills, and active intervention techniques.Regular Psychological Assessments - Implement quarterly EI-based evaluations for leadership teams to monitor workplace culture and stress impact.Early Intervention & AI-Based Monitoring - Deploy AI-powered behavioral analytics and anonymous well-being check-ins to detect and address emerging distress signals.24/7 Support & Crisis Networks - Establish dedicated mental health response teams, peer advocates, and emergency counseling services tailored for offshore and rotational workforces.Integration into ADNOC's ESG and HSE Reporting - Embed mental well-being indicators into HSE dashboards and ADNOC's ESG frameworks, ensuring accountability, transparency, and continuous improvement.Industry Collaboration & Knowledge Sharing - Promote cross-sector learning at ADIPEC and ADNOC- hosted knowledge-sharing forums, encouraging best-practice adoption across the Oil & Gas industry.

Abstract The paper aims at presenting the extensive qualification approach adopted for the Hybrid Composite Flexible Pipe (HFP). The test results presented are mainly focused on the capacity of the PEEK-Carbon Fiber composite material and the pipe to resist to harsh environment, which combines high CO2 content, high pressure, and temperature, demonstrating that HFP is a Stress Corrosion Cracking (SCC) resistant solution in ultra-deep-water environments. The extensive testing campaign leveraged the classical pyramid approach described in DNV standard RP-A203, starting with material small scale to conclude on product full scale tests. The models developed aims at bridging the gaps from the idealized material level to full scale level. A comprehensive description of the testing done at the different scales to qualify the product for the most aggressive environments is given, including innovative methodology for end-of-life characterization for both material and the full-scale levels. Results of correlation between the experimental full scale prototypes tests and models are also provided. At material scale level, a first step called fluid screening was conducted, aiming at identifying the most detrimental fluid to be conservatively used for all the subsequent small-scale testing campaign. The most significant finding is that the PEEK-CF composite material is inert to high contents of H2S. Additionally, there is no ageing of the material exposed to fluids with large CO2-content, demonstrating a good resistance and stability in CO2-rich environments. Results of the long-term properties measurement (fatigue and stress-rupture mainly) under continuous presence of high CO2-content fluid combined with high pressure and temperature, are also discussed. The permeation testing campaign revealed excellent permeation properties leading to a dramatic drop of CO2 partial pressure in the tensile armor wires annulus compared to conventional flexible pipe, making HFP a definitive SCC-free solution. Additionally, results of HFP full-scale tests done after months of CO2 saturation at high pressure and temperature have demonstrated a very good stability and behavior of the product over time. Finally, the paper presents the calculation model developed and compares it against the tests done at the medium scale and HFP full-scale levels, showing a very good correlation. The Hybrid Composite Flexible Pipe is a breakthrough technology combining the best composite material and the conventional flexible pipes. The novelty of HFP lies in the ability to solve sustainably the SCC challenge, observed on conventional flexible pipes, for a service life of 30 years, allowing the safe use of this step-change flexible pipe technology in harsh and CO2-rich environments.

API Technical Report 17TR8: High Pressure – High Temperature (HPHT) Design Guidelines (API 17TR8) contains detailed guidelines on design methodology, material property requirements, design validation testing of pressure-containing and pressure-controlling components along with special requirements for seals and fasteners when considering the effects of HPHT retained (wellbore) fluids passing through subsea equipment (HPHT defined here as internally operating above 15 000 psi (103.5 MPa) rated working pressure and/or 350°F (177°C) operating temperature). It has gone through two revisions since its inception in 2012, updating its contents as HPHT knowledge and experience in the upstream oil and gas industry has been accumulated. The 3rd edition focused on improvements to material characterization protocols and clarifying wording in its use as a design guideline. This paper focuses on the 3rd edition's update to fatigue screening/analysis to establish design methodology and material functional specifications for subsea equipment used in oil and gas applications. Observed issues and concerns around fatigue screening, when and where to use it, use of S-N vs. Fracture Mechanics, and updates to material characterization for different environments, and fatigue curve modification are discussed.