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API 16A BOP Stripping Test, Replacement of Primary Control Console

This fixture uses (3) 250 hp pumps and a servo valve to cycle a 14″ bore, 7″ rod, 86″ stroke hydraulic cylinder along a precise motion path to complete an API 16A BOP stripping test. The scope of work as well as pictures of the project are below.

  1. LABEL THE CONTROL CONSOLE I/O. Identify, trace, and label the input and output wires for the currently used power and control signals of the reciprocator fixture on the control console. The signals are sourced at the cRIO and end at terminal strips.
  2. REMOVE THE CONTROL CONSOLE. Console electrical components are about 70 three-contact relays, 4 two contact time delay relays, 3 electronic proportional amplifiers, 4 power supplies, 3 current loop meters, an alarm module and a physical human-machine-interface (HMI) of 41 devices which are buttons, analog displays, switches, and an analog output knob. The removed console will be placed in client’s on-site trash bins.
  3. SPECIFY A SMALL ENCLOSURE TO REPLACE THE CONSOLE. Specify a significantly smaller NEMA enclosure with panel to replace the control console. The enclosure will handle the necessary signals that are most likely 8 AI and 6 DO.
  4. COMMISSION THE FIXTURE AFTER CONSOLE REPLACEMENT. Terminate the control signals and troubleshoot the fixture to make it operational again. Note that the Reciprocator pit that includes sensors was recently flooded.
  5. EHS IMPROVEMENTS ACHIEVED:
    1. Remove ~35-year-old electrical equipment to reduce the risk of a short circuit or electrical failure between the controls and high energy fixture.
    2. Remove unnecessary wires with unclear purpose from the trench. Once the console is removed, it will be clear which wires are unnecessary in the trench that contains water & links the reciprocator pump frame plus chiller, control room B, and reciprocator pit. Unnecessary wires include those from the reciprocator, recently disposed-of diverter panel, HPTU, and past projects like the Chevron mud-lift project. It is recommended that replacement wires not be run in the trench or be run in the trench inside conduit.
    3. Minimize control Room B chemical smell and rodent entry/exit points. Specify a barrier between control room B floor and trench.
    4. Minimize the wiring routed into the confined space so that future entry time will be minimized.

 

Pictures of the system before Aiken completed this work are below.

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old3

 

 

 

 

 

 

 

 

 

Pictures of the system after Aiken completed this work are below.

new2

 

 

 

 

 

 

 

 

new3

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