Sergey Lezzhov

Experience

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  Sakhalin Energy

  Mar 2010 - Jan 2014

  Offshore Wellsite Drilling Engineer / NDSV

  Duties:- Supervised drilling, completion and well intervention operations in offshore arctic conditions maintaining high HSE standards.- Monitored drilling parameters and performance, identifying opportunities for improvement and implementing corrective actions.- Prepared comprehensive reports on drilling progress, cost analysis, and operational efficiency for project management and stakeholders.- Planning and execution of drilling operations in offshore sub-arctic environments, people and equipment mobilization, logistics coordination.- Preparation of Drilling Instructions, risk assessments, and contingency plans.- Conduct regular inspections and audits to ensure equipment integrity and adherence to quality standards.Contributions:- Ahead of AFE delivered ERD wells 8000m MD with first deployment of SAS (Stand Alone Screens) completion.- First time on the project executed Scale treatment campaign as a part of oil wells tubing scale dissolving and productionintensification.- Managed and coordinated more than 50 people from 15 different companies and other departments..- Mentored and trained 2 x drilling engineers providing guidance and support to enhance their skills and knowledge.- Managed Equipment and People logistics with 3 x offshore assets executing well engineering activities as drilling,completion and workovers with no NPT events. Show less

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  Salym Petroleum Development

  Jan 2014 - Jul 2014

  Night Drilling Supervisor

  Duties:- Instill high HSE standards in drilling crew with focus on Process Safety and dynamic risk assessment- Supervised land drilling and completion operations (Pad drilling): responsible for drilling crew performance, processoptimization, rig skidding and moving operations, drilling instruction preparation, logistic organization.- Executed workover operation: well killing, completion pulling, fishing and milling, and well integrity maintenance.- Work instruction and Job Safety Analysis preparation.- High quality reporting and documentation preparation.- Materials and people planning for wells construction and continuous well engineering activities.Contributions:- Safely and efficiently drilled and completed more than 10 wells over 6-month period, including longest horizontal well MD 4500m/TVD 1200m.- With no HSE exposure, within approved time and budget executed rig move activities to the drilling pad located 10+km away from previous one.- First time on the project implemented pitless drilling using specialized vehicles for dry cuttings disposal. Show less

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  Sakhalin Energy

  Jul 2014 - now

  Concept Stage:- Perform concept and detailed design of oil & gas producers and water injection wells, sidetracks and appraisal wells from well concept maturation till execution phase as per Shell GWDP (Global Well Delivery Process).- Perform casing design in Wellcat. Trajectory planning in Compass. T&D (torque & drag) analysis in WellPlan.- Multi-discipline work with Subsurface department to optimize / simplify well design, following well delivery process andevaluation / mitigation of risks to ALARP.- Technical and economical assessment of new wells and innovative technologies implementation.- Well technical specification authoring and maturation.- Technical expertise of vendors’ proposals as a part of Tendering Process for C&P.- Ordering Long Lead Items (Wellheads, Casings, Bits, etc.).- Concept of ERD wells (6000m+ MD) with various subsurface challenges (pressurized CRI zones, fault zones, BHS issuesand etc.)- Designed CRI wells workovers to reinstate stable cuttings/ fluids reinjection with partial casing cut and pull operations,subsequent casing remediation with use of META casing reconnect technology.Operations Stage:- Plan, monitor and coordinate well engineering activities in accordance with approved program, company procedures, safety standards and best practices.- Daily offshore support, constant Real-time offshore operations supervision through well construction (drilling parameters optimization, torque & drag checks, casing/liner cementation monitoring, etc.).- Ensures that well engineering activities are carried out safely, in accordance with approved program, company standards and HSE procedures.- Drilling Well on Paper, Drilling Program, Daily Drilling Instructions, EOWR preparation. Complex personnel and logistic administration. Show less Duties:- Sustain and improve Goal Zero HSE performance: conduct TBT and safety audits, HSE meetings with drill crew.- Supervise offshore drilling, completion, well intervention and scale treatment operations maintaining high HSE standards.- Work instruction preparation, real-time torque & drag modeling, hydraulics modelling, anti-collision checks, friction factor calibration, casing/liner tally preparation, cement slurry volumes verification and etc.- Managing downhole problems: pipe stuck, loss of circulation, hole cleaning, borehole instability and etc.- Managing simultaneous operations through electronic Permit to Work (ePTW) system acting as Area Authority.- Management of Change authoring, Russian government reports preparation, EDM and eWCAT reporting.- Logistics and personnel administration work, vendor’s coordination, job services invoice approval.- Supervision and managing of Drilling crew consist of from 50 to 70 people from different service companies and departments.Contributions:- Achieved Zero HSE related incidents or accidents for 5 years of active well engineering activities (drilling, completion, well intervention and rig maintenance).- Drilled ERD 7000m+ MD wells with 6-1/8” production interval using Water Based Mud (WBM) fluid system.- Supervised and successfully completed: Conductors driving campaign (11 x conductors driven) / Frack and Pack wells with use of Frack Vessel / Scale treatment operations and various WRFM WL&SLK campaigns. Show less

  • Senior Wells Concept Design Engineer

    Apr 2019 - now

  • Drilling Supervisor

    Jul 2014 - Apr 2019