Piyawan Hongsiriwilai

Drilling Engineer with over 8 years of experience in onshore and offshore operations, specializing in well design, work programs, AFE preparation, contract management, and risk mitigation. Proven track record in leading multidisciplinary teams, optimizing drilling performance, and delivering cost-saving initiatives. Experienced in budget planning, operational monitoring, and developing technical 
standards and guidelines. Committed to SSHE compliance, operational excellence, and continuous improvement in complex drilling projects. Recently expanded expertise in renewable energy and battery technologies, enhancing skills in data analytics, modeling, and programming.

Drilling Engineer, PTT Exploration and Production PLC., Thailand [Apr/2019 – Sep/2022]
• Designed comprehensive well specifications for ~100 wells, including well trajectories, casing design, torque and drag analysis, drilling fluids and cementing design, ensuring full compliance with standards, regulations, and SSHE policies.
• Prepared and delivered detailed operational work programs, cost estimates, and Authorization for Expenditures (AFEs).
• Monitored drilling activities, schedules, and expenditures during actual drilling operations, providing technical support to ensure safe and efficient well execution.
• Led performance improvement and cost-saving initiatives, covering fit-for-purpose engineering design, operational benchmarking and optimization, achieving cost reductions of approximately USD 1.5 million in 2021. 
• Supported the development of an online operational monitoring platform to enhance data tracking and enable peer benchmarking.
• Managed cementing and torque-reduction tool service contracts as the contract holder, overseeing competitive bidding, technical and commercial evaluations, and ensuring full compliance throughout execution. 
• Supported the Integrated Drilling Contractor (IDC) contract and plug-and-abandonment cementing contract. 
• Developed predictive day-and-cost models using historical data to support annual drilling budget planning. 
• Experienced in hazard identification, risk assessment, management of change, and implementing effective mitigation strategies. 
• Received the outstanding paper award at the company's 2019 Annual Technical Forum for “Successful Utilization of Advanced Shaped PDC Bit Cutter in Sirikit Field” as author and presenter.
• Co-authored standardized guidelines for Thailand onshore drilling well engineering design and operations. 
• Mentored new drilling engineer trainees.
• Completed mandatory certifications including well control (IWCF Level 4), firefighting, and first aid.

Night Drilling Supervisor, PTT Exploration and Production PLC., Thailand [Jun/2015 – Mar/2019]
• Managed and executed on-site drilling operations for 50+ wells (Thai onshore/offshore and Myanmar offshore), ensuring compliance with industry standards, company policies, regulatory requirements, and SSHE practices.
• Experienced in depleted wells, high-pressure-high-temperature (HPHT) wells, batch and offline drilling operations, monobore drilling and completions, sand control completions, slot recovery wells, plug-and-abandon operations, severe loss circulation, well ballooning, and well control.
• Collaborated with over 100 multicultural contractors and multidisciplinary teams, fostering teamwork, enhancing communication, and optimizing operational performance.
• Prepared and delivered daily operational and end-of-well reports, including tracking and lessons-learned documentation to support project evaluation and decision-making.
• Completed mandatory certifications including well control (IWCF Level 4), offshore survival, firefighting, and first aid.

M.Sc. in Renewable Energy Engineering and Management, University of Freiburg, Germany [Oct/2022 – Nov/2024]
• Final Grade: equivalent to 3.7 GPA on US scale (German grade 1.3; 1.0 = best, 5.0 = fail) 
• Awarded highest grade for Master’s thesis: “Analysis and Acceleration of the Formation Process in the Production of Lithium-Ion Battery Cells” (collaboration with Fraunhofer ISE, German national research institute)

B.Eng. in Petroleum Engineering, Chulalongkorn University, Thailand [May/2010 – Apr/2014]
• Final Grade: 3.76 (First Class Honors)
• Awarded a full scholarship from Thailand’s national petroleum exploration and production company (PTTEP).
• Internship in the Drilling Department, PTTEP (2013): obtained hands-on experience in drilling engineering and field operations at a Thai onshore field.
• Internship in the Well Services Department, PTTEP (2012): gained operational experience in slickline, e-line, workover, completion, and well services workshop at a Thai onshore field.