Riser Systems
Drilling, Completion & Workover Risers
Comprehensive industry-leading design and analysis services for drilling and intervention risers and riserless well intervention systems.
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Key Personnel
Mahesh Sonawane
Technical Advisor - Drilling & Completions
About
Mahesh Sonawane is a Technical Advisor for Drilling and Completions with 2H Offshore in Houston. He has a Masters of Science in Mechanical Engineering from Texas A&M University, Mahesh had over 15 years experience in global riser analysis and specialized in drilling and completion risers, HPHT equipment and riserless well intervention systems for offshore applications.
Expertise
Phil Ward
Principal Engineer
About
Phil is a principal engineer in 2H’s Houston office. He holds a master’s degree in Engineering from Cambridge University and has 14 years’ experience in the oil and gas industry with various types of pipeline and riser designs, subsea structural monitoring systems, and late-life assessment techniques. Phil started his career with 2H in Aberdeen, and held the director position there before relocating to 2H Houston in 2019 with the goal of cross-populating experience with shallow and deep water systems. He has held numerous project management and technical leadership roles on a variety of projects from concept through to detailed design, including subsea wellhead fatigue mitigations, platform well design optimisation and thick-wall SCRs. Phil is a Chartered Engineer and Member of the Institute of Mechanical Engineers.
Expertise
Tze King Lim
Technical Manager
About
Tze King Lim is Technical Manager for 2H Offshore in Perth, Australia. He specialises in the design, analysis and monitoring of drilling risers, subsea well, jack-up rig and jacket platform conductors, and completion, workover and intervention risers and has over 17 years of industry experience. Tze has a MEngSc in Petroleum Engineering from University of New South Wales.
Insights
Industry-leading domain knowledge
2H has extensive experience in the design and analysis of marine drilling risers and completion and workover riser systems. We have led the development of various drilling and intervention technology innovations, including the novel 15K and 20K systems, as well as implementation of managed pressure drilling equipment.
Drilling Risers
Our experience with all modern and legacy rigs, risers and wellhead types enables us to provide efficient turnaround times of comprehensive, system-focused engineering assessments and well-specific operating guidance for drilling risers.
We have industry-leading experience in harsh environments, shallow and ultra deepwaters and new frontiers, which require a total system approach where all components of the system, wellhead, conductor, surface casing and riser are considered together to define operating limits. An approach that was pioneered by our team and is now considered best practice.
2H defined best practice in drilling riser system design and analysis having led key industry research such as the AMJIG and DeepStar JIPs and developed the Deepwater Drilling Riser Integrity Management Guidelines.
Completion & Workover Risers
Riser arrangements and methods of implementation can vary considerably and present specific design challenges. Our experience with riser operations and equipment enables us to quickly define operating limits and develop new component requirements and configurations.
Our completion and workover riser projects have covered a range of services, vessel types, interfaces, environments and water depths including many of the most technologically challenging deepwater and HPHT wells.
Riserless Light Well Intervention
Riserless systems with coil tubing, wirelines and umbilicals are challenging due to their flexibility and light weight. Although a cost-effective intervention method, the open water mode of operating exposes them to environmental loads, resulting in high vessel downtime due to strength and fatigue limits.
We understand the global response of RLWI downlines and have novel analytical methods which increase the accuracy of analysis results. We work in collaboration with operators, downline OEMs and rig contractors to optimise system configurations in the early stage of a project to eliminate or reduce operating challenges that may present themselves down the line.
Key Personnel
Mahesh Sonawane
Technical Advisor - Drilling & Completions
About
Mahesh Sonawane is a Technical Advisor for Drilling and Completions with 2H Offshore in Houston. He has a Masters of Science in Mechanical Engineering from Texas A&M University, Mahesh had over 15 years experience in global riser analysis and specialized in drilling and completion risers, HPHT equipment and riserless well intervention systems for offshore applications.
Expertise
Phil Ward
Principal Engineer
About
Phil is a principal engineer in 2H’s Houston office. He holds a master’s degree in Engineering from Cambridge University and has 14 years’ experience in the oil and gas industry with various types of pipeline and riser designs, subsea structural monitoring systems, and late-life assessment techniques. Phil started his career with 2H in Aberdeen, and held the director position there before relocating to 2H Houston in 2019 with the goal of cross-populating experience with shallow and deep water systems. He has held numerous project management and technical leadership roles on a variety of projects from concept through to detailed design, including subsea wellhead fatigue mitigations, platform well design optimisation and thick-wall SCRs. Phil is a Chartered Engineer and Member of the Institute of Mechanical Engineers.
Expertise
Tze King Lim
Technical Manager
About
Tze King Lim is Technical Manager for 2H Offshore in Perth, Australia. He specialises in the design, analysis and monitoring of drilling risers, subsea well, jack-up rig and jacket platform conductors, and completion, workover and intervention risers and has over 17 years of industry experience. Tze has a MEngSc in Petroleum Engineering from University of New South Wales.
Insights
Projects completed
Drilling riser system design and analysis is one of our original core competencies. We have led key research and set the precedence for best practices in the industry as well as completed hundreds of projects around the world.
1000+
Drilling riser projects
450+
Completion & workover riser projects