MUX Control SystemsMUX Control Systems

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Multiplex Control SystemMultiplex Control System

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MUX System - Key FeaturesMUX System - Key Features

Designed and tested for continuous operation in 10,000 feet of water

Designed for a 20-year service life

Designed to minimize maintenance costs, maximize operating time

Component design is based on 25 years of proven operational experience

Designed and manufactured in accordance with API 16D, API 16E

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MUX System DevelopmentMUX System Development

One Year $2,000,000 Development Program

All Subsea MUX POD Components were prequalified by Testing at 5,000 psi Ambient Pressure and Low Temperature (+1C/34F)

Subsea MUX POD Electronics Assembly was subjected to Vibration Stress Testing.

Subsea MUX POD was subjected to Hyperbaric Testing at 4,000 psi Ambient Pressure and Low Temperature (+1C/34F)

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BOP Control ModesBOP Control Modes

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Electronic System - Key FeaturesElectronic System - Key Features Modular component design

Dual power supplies for each assembly

Control circuits are in a dual redundant distributed system design

Control circuit communications are based on the RS-485 industry standard using the Motorola 68360 chip set.

Each control CPU and MMI CPU is isolated from each other, using 10 Base T for communications.

Embedded data acquisition system which records each event and alarm.

Data logger which includes permanent storage of data acquisition information and maintenance data base.

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Embedded Electronics VS PLCEmbedded Electronics VS PLC

Size and weight of sub sea package.

Minimize heat generated by electronics package

Increased capability

Increased system reliability due to continuous monitoring of key system parameters.

Customized interfaces (i.e. - DP System).

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System SoftwareSystem Software

User interfaces:

Traditional Driller’s panel with lighted push buttons

CCU System monitor with Windows 95 type interface

API Alarms

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Operating SystemsOperating Systems

Control: VX Works

Display/MMI: Windows NT/95

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Control C

MMI/Display Visual Basic

Surface Communications: Hydril MODBUS

Subsea Communications: HAYES Modem Set

Programming LanguagesProgramming Languages

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Central Control Unit (CCU)Central Control Unit (CCU)

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CCUCCU Integrated console with Redundant Stations:

Backup Control

System Monitoring

System Diagnostics

Intuitive design and layout for “at a glance” total system status

Failsafe design / not MMI dependent

Custom Interfaces for:

Electronic riser angle

Riser recoil system

Custom RS-232 or RS-485 inputs/outputs

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CCU DisplayCCU Display

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Driller’s PanelDriller’s Panel

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Driller’s PanelDriller’s Panel

Micro-processor based / multiplexed with the CCU

Standard packaging for user familiarity

Color coded labeling

Meets hazardous location requirements

API Alarm monitoring

System status monitoring

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Tool Pusher’s PanelTool Pusher’s Panel

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Subsea Control PodSubsea Control Pod

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Subsea PodSubsea Pod

84 Hydraulic Ports

96 Functions

20 Year Design Service Life

Retractable Stab Design for Guide Line and Guide Lineless Operation

E/H Unit and Hydraulic Unit are interchangeable

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Subsea PodSubsea Pod

E/H Unit

HydraulicUnit

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Subsea Pod E/H Unit

Sub Sea Electronics

PressureCompensated

Solenoid Housing

PressureTransducers

Solenoids

Sub SeaMUX CableConnector

Hydraulic Seal Sub J-Plates

One AtmosphereBase

Sub SeaTransformer

Shear SealPilot Valves

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Subsea Pod E/H UnitSubsea Pod E/H Unit All exposed metalic components are manufactured

from 316L SS, Nitronics 50/60, or 17-4/7PH.

All penetrations into one atmosphere base have redundant o-ring seals and a test port

All external electrical connectors have redundant o-ring seals with test ports

All electrical wiring subjected to sea pressure has dual pass EPC wiring with boot seal terminations. The wiring assemblies are encased in an oil filled pressure compensated jacket

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Shear Seal Pilot ValveShear Seal Pilot Valve

Body constructed of 316L SS and Nitronics 50/60 materials Seals are Nickel Carbide Solenoid is rated for 60VDC, 30 watt continuous operation 65 pound pull in force 15 pound drop out force

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Subsea Pressure TransducerSubsea Pressure Transducer

Body and housing are constructed of 316L SS Absolute Pressure range of 0 psi to 10,000 psi Uses measured sea head pressure to determine

relative pressure Unit is interchangeable by removing four bolts

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Subsea Electronics ModuleSubsea Electronics Module

Redundant Electronics Modules

Redundant Power Supplies

Low package density

Low power consumption

High Amperage Hypertronic Connectors which are keyed and positive locked

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Subsea Pod Hydraulic UnitSubsea Pod Hydraulic Unit

HydraulicRegulators

SPM Valves

Flow Meter

ReferenceAccumulators

ShuttleValves

Pilot CircuitHydraulic Filter

Solid HydraulicManifolds

BOP Stack StabCylinder

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Subsea Pod Hydraulic UnitSubsea Pod Hydraulic Unit

All Subsea POD components are manufactured from 316L SS, Nitronics 50/60, or 17-4/7PH.

Hydril Wedge Block Dynamic Seals (1/2”, 1”, & 1 1/2”)

No Hosing, all hydraulic connections are hard piped or made through the Hydril Stab Block.

Spent BOP fluid is captured to bath all components in the spent fluid instead of sea water.

LMRP Disconnect has a positive read back through a mechanical pin actuated Pilot Valve/Pressure Transducer.

Optional 4 pin wet make/break electrical connector in stab to provide power and signal to stack mounted electronics.

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Subsea Hydraulic RegulatorSubsea Hydraulic Regulator

Body and major components are 316L SS and Nitronics 50/60

Nickel Comaloy Coated Seal Surfaces with Nickel Carbide Seals

240 GPM Maximum Measured Flow Rate

Dead Band <40 pounds

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Subsea SPM ValveSubsea SPM Valve

Body, Cage, and Spool Components are Nitronics 50/60 and 316L SS

Springs are Inconel Three sizes, 1/2” - 1” - 1 1/2” Low Interflow Cage design Individual Body Housings manifold mounted No hose connections, uses dual o-ring SAE Flange connections

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Hydraulic Power SystemsHydraulic Power Systems

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Hydraulic Pumping UnitHydraulic Pumping Unit

Stainless Steel Check Valve on Outlet 1 Quart Surge Bottle All piping is 316L SS All hydraulic connections are welded or SAE Flanged Unit is laid out to maximize maintainability

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Hydraulic FilterHydraulic Filter

Hydraulic Filter rated for 5,000 psi Operating Pressure

316L and Nitronics 50/60 Construction 200 psi Automatic By Pass Multiple size filters available Same filter assembly is used on Stack and on

Surface Hydraulic Power Unit

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Accumulator Bottle RackAccumulator Bottle Rack 6,000 psi 15 gallon top

loading bottles

Available in 10 bottle racks, 12 bottle racks, 16 bottle racks, and 20 bottle racks

Blanking Plates available for odd numbers of bottles in rack

Each manifold can be isolated and has a gauge showing manifold pressure

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Accumulator Bottle RackAccumulator Bottle Rack

Bottle Fluid Port is a Code 62 SAE Dual O-ring connection with four bolt retaining flange

Manifold header is machined from a solid bar of 316L SS No NPT screwed connections 316L SS Drip Pan with drain plug