Chapter 7
Subsea Control
Contents
7.1. Introduction
7.2.1. Direct Hydraulic Control System
7.2.2. Piloted Hydraulic Control System
7.2.3. Sequenced Hydraulic Control System
7.2.4. Multiplexed Electrohydraulic Control System
7.2.5. All-Electric Control System
7.3. Topside Equipment
7.3.1. Master Control Station (MCS)
7.3.2. Electrical Power Unit (EPU)
7.3.3. Hydraulic Power Unit (HPU)
7.4. Subsea Control Module Mounting Base (SCMMB)
7.5. Subsea Control Module (SCM)
7.5.1. SCM Components
7.5.2. SCM Control Mode Description
7.5.2.1. Valve Actuation
7.5.2.2. Choke Operation
7.6. Subsea Transducers/Sensors
7.6.1. Pressure Transducer (PT)
7.6.2. Temperature Transducer (TT)
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