Production Process and Flow Assurance Engineer

2 weeks ago

india Hindustan oil Exploration Company Full time

Job Title : Production Process and Flow Assurance Engineer

Experience : 15+ yrs

Industry : Upstream Oil and Gas Industry is Mandatory


Job Location : Chennai.




• As a flow assurance engineer, the candidate is expected to develop strategies which guarantee and optimise production from the near wellbore to the point of processing by predicting, preventing and solving problems associated with the behaviour of the transported fluids.

• The role not only includes providing predictions but also prevention strategies and remediation methods in case of the occurrence of solids/wax deposition leading to a pipeline blockage or jeopardising production.

• Responsible for providing prediction and interpretation of fluid characteristics, flow hydraulics, thermal behaviours and the guidance of operation strategies and procedures.

• To interact and work with multiple disciplines involved in a project, including subsurface, pipeline and risers, subsea hardware, topsides process facilities, chemical vendors and fluid laboratories.

• In addition to interfacing with multiple disciplines, needs to work across the entire engineering project life cycle from conceptual select studies through FEED and detailed engineering to commissioning and operations support.


Support both steady-state and transient work scopes.


In terms of steady-state flow assurance analysis, the following activities are typical:

• Thermo-hydraulic analysis to assess the capacity and capability of the production system to ensure that production profiles can be met without being hydraulically or velocity constrained.

• Investigation of system insulation requirements to ensure the system operates at steady-state without entering the hydrate risk region or drop below the wax appearance temperature.

• Generation of pipeline pressure, temperature, liquid hold-up, velocity and contents density profiles for input towards project mechanical design engineering work.

• Input towards topsides or onshore facilities design and development of system operating philosophies.


Transient flow assurance analysis is also essential to assist in the development of a more in-depth understanding of a system’s operability to develop an understanding of the time-dependent issues associated with the operation of an Asset and the impact of these instabilities through simulation and analysis of the following typical operating scenarios:

• Shutdown cool-down, including calculation of system no-touch times and settle-out pressures.

• Depressurisation analysis covering time to depressurisation, topsides restriction orifice sizing, minimum fluid temperature calculations and assessment of potential liquid surge volumes received at the pipeline outlet.

• System start-up simulations to calculate well warm up times, minimum fluid and pipe wall temperatures, liquid surge volumes and hydrate inhibitor injection requirements.

• Rapid transient events such as liquid surge pressures in export systems or over-pressure protection (HIPPS) trips in upstream systems.


Typically, provide support in the development of hydrate and wax mitigation philosophies or supporting the generation of detailed operating procedures explaining the steps to be taken when performing transient operations such as depressurisation, start-up or shutdown.


Knowledge of relevant software like Aspen Hysys, OLGA, etc.,.


  • Designing and optimising the operation of equipment and facilities
  • Advising on process safety issues
  • Analysing laboratory and plant data
  • Liaising with the operators in the control room daily
  • Developing and checking of process documents for main process units of the production facilities.
  • Development of new design basis for future phases of development of the HOEC Assets
  • Drafting and development of BFDs, PFDs, P&IDs
  • Development of studies aimed at identifying the optimal solution both from the technical and economic points of view
  • Development of heat and material balances
  • Verification and/or calculation of flare, vent and blowdown systems
  • Compilation and issue of process and safety data sheets (Process Data Sheets) for both equipment and instrumentation
  • Participation in HAZID (Hazards identification) and HAZOP (Hazard & Operability Analysis) sessions
  • Flow Assurance study for pipelines (validation of lines diameters and thickness, pipeline Depressurization Analysis, validation of pigging operations and feasibility, hydrates and deposits formation.

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