Subsea Controls & Integration

Universal Master Control StationThe standardized operator-driven solution

The Universal Master Control Station

ENGlobal at a glanceFounded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering

services firm that focuses on oil and gas automation, subsea control

systems and select EPCM projects. ENGlobal works closely with

customers worldwide to safely deliver solutions that ensure

long-term success while preserving the environment.

HMI

MCS

Vendor ASubsea System

Vendor BSubsea System

HMI

MCSConventional MCS

Multi-vendor Architecture

Historically, the topsides subsea controls component has been the responsibility of the subsea equipment vendor. In developments

containing subsea equipment from multiple vendors, operators ended up with multiple topsides subsea controls components. Recognizing the need for an integrated solution, a major global oil company set out to standardize subsea control technology in 2008. ENGlobal’s Universal Master Control Station (UMCS) is the result of a collaborative development effort with this operator. The original parameters required by the operator have helped make the UMCS the ideal solution for many subsea projects.

The Universal Master Control Station

UMCS Multi-vendor Architecture

HMI

UMCS

Vendor ASubsea System

Vendor BSubsea System

Subsea StandardInterface

Features and Benefits• Total System Integration

• Ideal Replacement for Obsolete MCSs

• Flawless Implementation – Standardized Communication Interfaces for all subsea and topside kit

• Streamlined Configuration – Extensive, configurable Object Library; drag and drop logic/graphic development

• High Reliability – Proven software, selected hardware

• Standardization – Across multiple projects > Hardware and software > Sparing > Bid, contract and project documentation > Training

• Seamless Integration > Intervention and Workover Control Systems (IWOCS) > Intelligent Well Control Modules (IWCMs) > Intelligent Seabed Devices (ISDs)

• User Configurable – Tools for creation of ESD Sequences and Interlocks

• Efficient Testing – Portable automated testing tools and simulators

• Reduced Cost of Maintenance and Troubleshooting – Extensive diagnostics

• Obsolescence Proofing – Maintainable and expandable for design life; MDIS compatible and upgradable

• World Wide Support 24/7/365 – Secure onshore online assistance

How the UMCS is Standardizing Subsea ControlsHow the UMCS is Standardizing Subsea Controls

HPUEPU UMCS

DCS

Owner/Operator

Subsea Gateway

Subsea Gateway

How the UMCS is Standardizing Subsea ControlsHow the UMCS is Standardizing Subsea Controls

In the first phase of a subsea development, an object blueprint is created for all components of the control system. Each object has multiple object instances. Each instance has its identifying parameters input into the form from the project P&IDs. This form-based structure is used to create a Data Exchange Table to populate the UMCS (HMI, PLC and Communication Server) and the Subsea Gateway, DCS, EPU and HPU.

This database management tool dramatically increases efficiency in the implementation and execution of a project. User configurable tools are utilized to create the interlocks and sequencing from the cause-and-effect document. Since this is a standardized approach, a majority of the first phase development engineering can be used for any subsequent tieback on a project, or on an entirely new project, further reducing cost, time and integration problems.

Project Development

HPU

Interlock and ESD

Sequence Tool

DCS

EPU

Subsea Gateway

SCM

Subsea GatewayDCSData

ExchangeTable

EPUData

ExchangeTable

HPUData

ExchangeTable

Object Blue Print Object Instance Data

HMI

PLC

Comm Server

UMCSMPFM• Logic• Graphics• Methods• Data Items

DHPT• Logic• Graphics• Methods• Data Items

CHOKE• Logic• Graphics• Methods• Data Items

VALVE• Logic• Graphics• Methods• Data Items

MPFM• Tag Number• SCM Nu• Open• Close

DHPT• Tag Number• SCM Nu• Open• Close

CHOKE• Tag Number• SCM• Open• Close

VALVE• Tag Number• SCM Number• Open Threshold• Close Threshold

UMCS Object-Based Interface

The UMCS Standardized Interface utilizes a set of definitions or rules of engagement developed and agreed upon by all subsea and topside vendors. These rules of engagement govern implementation of the interface. An example of the mapping pro-cess is shown above. This process is completely reproducible from one project to another. Each subsea vendor provides their own Subsea Gateway, thus preserving the proprietary design and safeguards inherent in each system. This arrangement makes any modifications between the Subsea Gateway and SCM transparent to the UMCS. Communication with the DCS is less complicated because it is not proprietary, and it uses commercially available protocols such as Modbus, Ethernet IP, OPC DA or OPC UA.

The standardized Universal Master Control Station dual bay cabinet

VALVE

VALVE

VALVE

VALVE

MPFM

MPFM

MPFM

MPFM

ANALOG

ANALOG

ANALOG

ANALOG

DCS

UMCS

Subsea Gateway

SCM

The UMCS interface is comprised of three main layers: HMI, logic/control and Subsea Gateway to control pods on the ocean floor. Two complete and segregated channel networks, incorporating high availability redundant PLCs, simultaneously monitor data functions to and from each other, as well as between surface and subsea equipment. In the event of a channel network failure, the other processor will seamlessly operate the UMCS. Dual redundancy allows the UMCS to survive multiple points of failure by implementing communi-cation “cross strapping” and bump-less transfer for each of the redundant components.

UMCS Dual Redundancy

HMI A

PLC A

HMI B

PLC B

A B

Operator Interface

Subsea Gateway

SCMSEM A SEM B

HMI A

PLC A

HMI B

PLC B

A BSubsea Gateway

SCMSEM A SEM B

Operator Interface

ENGlobal Subsea Controls & Integration654 N. Sam Houston Parkway East, Suite 400Houston, Texas 77060-5914+1-281-878-1000www.englobal.com

© 2014 ENGlobal Corporation

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