Preparing for operation of a major oil and gas facility is a daunting task. Prior to first oil we need standard operating procedures (SOPs), maintenance procedures, spare parts and trained operators just to name a few. And yet Operations Readiness efforts frequently start too late and are frequently inadequately resourced.

Consult A Specialist

Tanmay Anand

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Operations Readiness & Initial Startup Services


Recent & Key Projects Involving Operations Readiness & Initial Startup

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Noble Energy – ASENG FPSO SYSTEMS ENGINEERING

GATE formed and led the Systems Engineering Team for the Aseng Project in offshore Equatorial Guinea.

The GATE Systems Team was responsible for the Initial Start-up Plans and Procedures for the development. This included the flowback of the main gas injector for final commissioning/dewatering of the subsea system as well as the start-up of the water injection system prior to starting-up production.

Detailed Initial Startup Plans and Procedures were developed and then executed offshore during the Final Commissioning and Initial Start-up phase of the project.

In addition, the GATE Systems Team also developed the detailed subsea operating procedures. Offshore support was also provided for subsea operations and GATE provided onsite support for approximately 8-months post first-oil.

Subsea Operating Guidelines developed by the GATE Systems Team were also utilized to aid in operator training, subsea control system configuration, initial start-up planning, and ultimately detailed standard operating procedures and initial start-up procedures.

GATE providedOperating Philosophy documents, system studies, managed the project risk register and MOC processes, wrote the SubseaSOPs, reviewed the topsides SOPs, coordinated operator training on the Subsea SOPs and flow assurance issues, attended the topsides HAZOPs, conducted subsea procedure HAZOP, and conducted SIL assessments on selected systems.  

Noble Alen

GATE providedOperating Philosophy documents, system studies, managed the project risk register and MOC processes, wrote the SubseaSOPs, managed development of the topsides SOPs, coordinated operator training on the SOPs, facilitated the topsides HAZOPs, conducted the subsea procedure HAZOP. GATE also assisted in development of the Presartup Safety Review (PSSR))methodology, participated in the PSSR, provide offshore assistance for initial startup, tuned the process control loops and provided offshore operations support for the first few months of operation.

Shell Bonga

GATE developed the dynamic models and participated in the development of the Operator Training Simulator (OTS), developed the operator training program implemented on the OTS, managed the development of the SOPs, conducted SOP testing on the OTS and participated in numerous operability studies over the course of the project. GATE provided offshore support for commissioning and initial startup.

Chevron Tombua Landana

GATE developed the Master Equipment List with associated equipment attributes, QA/QC the EPCI’s Asset Register, developed spare part information for loading into JD Edwards, worked with local operations team to set Min/Max levels and utilized visual basic macros to streamline processes.

BHP BILLITON – SHENZI FINAL COMMISSIONING & INITIAL START-UP

GATE work on Shenzi included reviews of the SOPs and developed the initial startup procedures based on the SOPs.  GATE wrote and implemented the Waterflood commissioning procedures. We also conducted system studies, souring, scaling and chemical system studies, attended project HAZIDs and HAZOPs.

GATE was responsible for the Final Commissioning and Initial Startup Plans and Procedures for the Shenzi Development offshore GoM. This included export system final commissioning plans and procedures for the oil and gas systems.

Umbilical final commissioning procedures were also developed and executed offshore.

Detailed Subsea Operating Guidelines were also developed for this project and were subsequently utilized for the development of subsea standard operating procedures.

BHP BILLITON – NEPTUNE FINAL COMMISSIONING & INITIAL STARTUP

GATE was responsible for the Final Commissioning and Initial Startup Plans and Procedures for the Neptune Development offshore GoM.

Commissioning Procedures of the surface facilities in particular developing detailed Leak Testing Procedures were developed.

Detailed Subsea Operating Guidelines were also developed for this project and were subsequently utilized for the development of subsea standard operating procedures.

ANADARKO – NANSEN INITIAL STARTUP

GATE provided support in the development of the Initial Startup Plan and Procedure for a subsea tieback to the Nansen Spar offshore GoM. This included three oil wells and one gas production well.

GATE also developed the umbilical displacement plans and procedures for this system.

ANADARKO – SHENZI MANIFOLD K TIE BACK OPERATING GUIDELINES

BHP Billiton Manifold K was also to the Marco Polo TLP. GATE produced a series of Subsea operating guidelines to address well integrity for startup, Reservoir Management, flow assurance, requirements of the Subsea System, Routine and Non-Routine Operations for the all wells on this manifold. This included:

  • Wells and manifold Startup plan and procedure to handle warm or cold startup.

  • Detailed overview of the chemical system for Shenzi fluids present on the Marco Polo TLP. This allowed fluids to be treated consistently so that both Anadarko and Shenzi wells could be treated adequately.

ANADARKO – MARCO POLO TIE BACKS STARTUP & OPERATING GUIDELINES

GATE was commissioned by Anadarko to commission two wells that would be tied back to the Marco Polo TLP. Under the scope of work, GATE produced:

  • Startup plan and procedures for the Green Canyon (GC) 518 Well #1.

  • Startup plan and procedures for the Genghis Khan (GK) Well #2.

  • Subsea operating guidelines that includes all aspects of operation including chemical treatments for flow assurance, shutdown, startups and normal operations that will ensure the integrity of the wells and the entire system. By using a systems approach and taking into consideration every aspect of the production, the manuals will serve as a go by for the entire platform production.

GATE undertook all activities associated with the Anadarko Marco Polo tie backs considering all other simultaneous and dependent operations and executed the startups without hitch.