Operations
Operations
Operations
CONTACT US (HTTP://GATE.ENERGY/CONTACT-US/)
Operations Readiness systems developed late in a project and in silos can’t reach the potential of becoming the powerful tools that they
were developed to be. This is the Industry Culture Change that GATE has set out to implement. To change the Industry Culture of
Operations Readiness, we changed the process and GATE mindset for development of ALL Operations Readiness Tools/Systems.
https://www.gateinc.com/oil-gas-engineering-services/operations-readiness 06/05/2019
Operations Readiness & Initial Startup — GATE, Inc. - Oil & Gas Engineering Page 2 of 6
GATE uses an innovative phased approach. High level SOPs are developed early based on the PFDs. These are then matured to mid-
level and finally to detailed procedures as the project matures.
Effective integration of the SOP development effort via a Systems Engineering Team yields other significant benefits. Coordination with the
control systems design efforts can provide valuable guidance to HMI design to mimic how the facility will be operated.
Effective SOPs can dramatically simplify the development of final commissioning and initial startup procedures.
The development of the CMMS and Preventive Maintenance Schedules is more effective if done concurrently with the SOPs. Maintenance
tasks can be specifically created and scheduled to reflect the equipment’s planned operability. Spare Parts will be set with valid Min/
Max levels based on the scheduled maintenance tasks, possible unexpected corrective maintenance tasks and logistical hurdles which
may require to be overcome.
These are all powerful arguments to put more effort and earlier effort into SOP development, but we seek a still higher goal – Culture
Change. Effective SOPs that are diligently used by operators may be the driver for the next step-change in process safety in the industry.
But this cannot reasonably be accomplished unless we start writing procedures that are more user friendly; procedures that the operators
will actually want to use.
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Tunnel vision. The focus on small nodes obscures the big picture.
Stream-Based Nodes
Equipment-Based Nodes
We do, however, have to resort to the typical equipment-based nodes for the temperature, pressure and level deviation discussions. But
we do all the stream-based node discussion first and that populates almost all the causes of pressure, temperature and level deviation. So
the pressure, temperature and level discussion are crisper and more efficient.
Read More about the GATE HAZOP Process in the April 2015 GATEKEEPER: What’s Wrong With HAZOPs & What We Can Do About It
(http://www.gateinc.com/gatekeeper/gat2004-gkp-2015-04)
The initial startup of a production system is one of the most challenging periods in field life; it is the first time the whole system has to work
together. GATE believes development of effective planning strategies will minimize the risks. We have a broad knowledge in generating
plans for the initial startup of wells, subsea tie-backs and new platforms.
GATE engineers have extensive experience in writing commissioning, initial startup and operating guidelines and procedures. During the
procedure writing effort, design errors and omissions are frequently discovered. In order to eliminate these problems, GATE believes that
procedure writing should be handled in stages, begin early in the project and start as a high level procedure that gradually matures along
with the design. Processes should be designed to be operated; operation shouldn’t be an afterthought.
• Start Early: Planning For Startup Should Start Early In The Project
• Use A Multi-Disciplined Team
• Use A System Approach
• Build The Plan In Stages
• Risk Management
• Training
Recent & Key Projects Involving Operations Readiness & Initial Startup
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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.
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.
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.
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Detailed Subsea Operating Guidelines were also developed for this project and were subsequently utilized for the development of subsea
standard operating procedures.
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.
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.
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.
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.
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https://www.gateinc.com/oil-gas-engineering-services/operations-readiness 06/05/2019