Subsea Controls & Integration

Universal Master Control Station (UMCS) & Master Control Station (MCS)

The ENGlobal UMCS utilizes patented technology that simplifies the configuration and implementation of a Master control station for a Greenfield or Brownfield development. User interface and data base management tools automatically populate the controller logic from the object assignment list. The UMCS also provides a rich set of pre-designed topside and subsea device objects for the user to simply “drag-and-drop” to form a system. The UMCS is a pre-engineered standardized system which results in a dramatic decrease in human error and large savings in effort and cost, and shortened delivery. 

The UMCS includes standardized and secure communication interfaces between major vendors of subsea equipment, DCS’s, and topside equipment such as the Hydraulic Power Unit (HPU) and Electrical Power Unit (EPU). Owners can purchase any subsea vendors equipment on field expansions reducing dependence on a single vendor pricing and delivery schedule. 

The UMCS Technology provides a high level of reusability and upgradeability. This provides seamless integration of critical control execution and data monitoring as a result of the selection and implementation of hardware, software, and communication layers. The UMCS is not based on proprietary communication interfaces or custom hardware. 

The operational and business objectives characterizing the design of the UMCS include:

  • Standardization of Subsea Control Integration
  • Reduction of Subsea Control Integration Cost
  • Shorter Time to Integrate Subsea Controls
  • Improve Subsea Control Integration Reliability
  • Comprehensive Diagnostics for Subsea Devices
  • Expandable in the field
  • Based on commercially available, off-the-shelf hardware
  • Components replaceable without shut-in
  • System hardware to be designed for maximum uptime (MTBF)
  • Dual redundancy to alleviate a shut-in due to multiple points of failure
  • Open architecture for integration with third party systems

 

The UMCS standard interface serves as the communication link to the Distributed Control System (DCS), Hydraulic Power Unit (HPU) and Electrical Power Unit (EPU).

The UMCS is a pre-engineered solution that offers savings in design and acceptance testing by requiring less time to build and interface with topside systems and components. In essence, the UMCS is a stark departure from the historic uniquely customized subsea control system of the past. It will monitor and control subsea control pods at the wellhead from multiple subsea equipment providers, without disrupting the subsea vendor’s native communication protocol. The rack-mounted PLC hardware also supports the required scalability inherent within subsea applications and deterministic logic execution.

The Core of the UMCS - Configuration rather than Programming

Universal Master Control Station

Software Objects are also standardized in the UMCS. The functional capabilities of these software components have been tested in multiple environments worldwide and most are used in any given installation. Complementing the software applications, the UMCS is comprised of a set of core graphic screens with a variety of control pop-ups, trending screens, diagnostics, and alarm handling.

Screens can be quickly configured to project-specific requirements using the Client Configuration Tool (CCT).

Custom programming is replaced by the Client Configuration Tool (CCT). The CCT utilizes drag and drop object deployment, object configuration, and the interlock/sequence developer, making the UMCS extensible and easier to maintain. EN­Global also provides a full range of lifetime support options, ranging from telephone support to proactive, secure Internet-based system monitoring and software upgrades.

Tangible Value of the Universal Master Control Station

The UMCS delivers enormous savings in design cost and acceptance testing, while making best use of limited space on topside facilities. As the core of an intelligent subsea control system, the UMCS combines industry proven, fault-tolerant control hardware with the extensive experience of ENGlobal to create the most robust system available today. The system is also designed to accommodate multiple wells, and integrate with the major distributed control systems (DCS) and subsea equipment types. The UMCS has effectively reduced engineering time by 80% or more for the following items:

  • System Design and Fabrication
  • Software Development
  • Human Machine Interface Graphic Creation
  • Subsea Communications Interface
  • EPU/HPU interface

 

Architecture and Connectivity

Universal Master Control Station

The UMCS interface is comprised of three main layers: HMI, logic/control and subsea communications. Two complete and segregated channel networks, incorporating high availability industrial controllers, 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. This dual redundant architecture eliminates any single point of failure and provides the bumpless transfer from the failed to healthy channel network.

Each subsea vendor will provide their own gateway, thereby preserving their traditional proprietary design and safeguards inherent in each system. This scheme alleviates the need for modifying any subsea vendor’s communication protocol and allows the design of the SCM to be evolved without affecting the UMCS. Most important, the UMCS enables multiple subsea vendors to connect to the same MCS via Ethernet/fiber optics, demonstrating the strong value of the standard connectivity afforded by the system’s open interface technology.

The UMCS provides dual redundancy capabilities within the overall system, allowing the system to utilize a combination of components from MCS A and MCS B to successfully perform the normal operations of the MCS. For example, this would allow the system to operate even with a failure of HMI A, PACB, OPC Server B, and Subsea Gateway A.

UMCS & MCS Projects

  • OMV Patricia Baleen
  • Anadarko Pardner
  • HESS Cieba
  • ExxonMobil Kizomba B
  • Chevron Captain
  • Chevron Tahiti
  • Husky White Rose
  • Santos Casino
  • Total L4G
  • W&T Offshore Baccarat
  • W&T Cypress
  • ExxonMobil Julia
  • ExxonMobil Hebron