API 16E : 1990

Paragraph
Policy
Foreword
16E.1 General description of control systems
16E.1.1 Surface mounted BOP stacks
16E.1.2 Subsea BOP stacks
16E.1.3 Electro-hydraulic/multiplex control systems
16E.1.4 Diverter control systems
16E.1.5 Back-up acoustic control systems
16E.1.6 Auxiliary equipment control systems
16E.2 Control systems for surface mounted BOP stacks
16E.2.1 Response time
16E.2.2 Storage equipment
16E.2.3 Pump requirements
16E.2.4 Accumulator bottles and manifolds
16E.2.5 Hydraulic control manifolds
16E.2.6 Remote control panels
16E.2.7 Requirements for BOP control system valves,
          fittings, lines and manifold
16E.2.8 Electric power supplies
16E.3 Hydraulic control systems for subsea BOP
          stacks
16E.3.1 Response time
16E.3.2 Mixing and storage equipment
16E.3.3 Pump systems
16E.3.4 Accumulator bottles and manifolds
16E.3.5 Control manifold
16E.3.6 Remote control and monitoring panels
16E.3.7 Subsea umbilical control hoses and conduit
16E.3.8 Electric power supply and distribution
16E.3.9 Hose reels
16E.3.10 Subsea control pods
16E.4 Electro-hydraulic and multiplex control
          systems for subsea BOP stacks
16E.4.1 Response time
16E.4.2 Mixing and storage equipment
16E.4.3 Pump requirements
16E.4.4 Accumulator bottles and manifolds
16E.4.5 Electrical control unit
16E.4.6 Control panels
16E.4.7 Control hoses
16E.4.8 Control fluids
16E.4.9 Electrical power supplies
16E.4.10 Subsea umbilical cables and connectors
16E.4.11 Cable reels
16E.4.12 Subsea umbilical hoses and rigid conduit
16E.4.13 Hose reels
16E.4.14 Control pods and subsea electrical equipment
16E.5 Diverter control systems
16E.5.1 Response time
16E.5.2 Storage equipment (self-contained units)
16E.5.3 Pump requirements (self-contained units)
16E.5.4 Accumulator volumetric capacity
16E.5.5 Diverter control manifold
16E.5.6 Control panels
16E.5.7 Control hoses
16E.5.8 Control fluids
16E.5.9 Electrical power supplies
16E.6 Emergency backup control systems
16E.6.1 Acoustic control systems
16E.6.2 ROV (remotely operated vehicle) operated
          control system
16E.6.3 Emergency LMRP recovery system
16E.6.4 Backup nitrogen power supply
16E.7 Auxiliary equipment control system
16E.7.1 30" latch and/or subsea diverter controls
16E.7.2 Riser fill/dump valve controls
16E.7.3 Control for upper riser accessories
16E.8 Periodic inspection and maintenance
16E.G Glossary
16E.H Schematic symbols

Establishes design standards for control systems, subsystems and components used to control BOP's (blowout preventers) and associated choke and kill valves that control well pressure during drilling operations. Although diverters are not considered well control devices, their controls are often incorporated as part of the BOP control system. Control systems for drilling well control equipment typically use stored energy in the form of pressurized hydraulic fluid (power fluid) to operate (open & close) the BOP stack components. Each operation of a BOP or other well component is referred to as a control function. The control system equipment & circuitry varies generally in accordance with the application & environment. Six control system categories are addressed in this edition of RP 16E.