Preventive Maintenance of Oil and Gas Instr/Mech/Elect/HVAC/Offsite/ Equipments

6 MONTHLY FILTER AND LAMP INSPECTION ON CCR CONTROL DISPLAY UNIT (DCS-OVERVIEW) Control Room Overview Screen Lamp Change out. TASKS TO BE PERFORMED: WARNING: THE LAMP MODULE MUST BE SWITHED OFF FIRST, THEN ALLOWED TO COOL DOWN FOR 5 MINUTES BEFORE THE POWER IS SWITCHED OFF. 1. Remove back panels of the CCR overview screen. 2. Switch off all the lamps by pressing STOP on each module. 3. WAIT 5 MINTUES. 4. Switch off power on each module by pressing OFF. 5. Remove filter pad from each module. 6. Remove to workshop and clean filter pad using airline, if the filter is excessively blocked, replace with new filter. 7. Install filter pads in the correct direction as indicated on the side of the filter. 8. Switch on power by pressing ON, at each module. 9. Switch on lamp by pressing START at each module. 10. Sign-off Work Permit and return to operations. 11. Report all findings to supervision and document in CMMS. CHECK WITH CONTROL ROOM AND ...

Yearly Metering & Flow Computer Totalizer Check FQI (FLOW TOTALIZER FLOW COMPUTER LACT UNIT) Procedure for Totalizer Checks as Part of the Calculation Checks: 1. Ensure that flow has been completely stopped through the stream to be checked. 2.  Make sure the Meter active flag is false by entering a positive value for low flow cut off. (See Omni User manual) 3.  Using the Omni Flow computer Keypad, press (Alpha Shift), (Prog), (Meter), (n), (Enter). 4.  Press the down arrow key until you reach Toggle Maintenance Mode. 5.  Press (Alpha), (Shift), (Y), (Enter), this will toggle the maintenance mode on or off depending on current status. 6.  You will be asked for the level 1 password, after entering the password press, (Enter). 7.  To end or deactivate the mode at any time follow steps 1 to 5, the display will show if Maintenance mode is active or not with Maintenance Mode Y or N. 8.  Now that you are in Maintenance Mode all th...

TASKS TO BE PERFORMED: 1. Inspection of Wellhead Control Panel. 2. Inspect Panels for any external damage. 3. Check Panels are securely mounted. 4. Check all tubing and conduit are secured properly and undamaged. 5. Inspect all Panel Indicators and Instruments for any damage. 6. Check panel interior for damage and cleanliness. 7. Close panels ensuring all fastenings are tightened correctly. 8. Check all panel seals ensuring no damage has occurred. 9. Ensure the status of the alarms are correct. 10. Clean Panel as required. 11. Sign-off Work Permit and return to operations. 12. Report all findings to supervision and document in CMMS.

TASKS TO BE PERFORMED: 1. Annual Function Test and Calibration of MAGNETROL LEVEL SWITCH LOW ALARM. 2. Inspect Level Switch for any physical damage. 3. Ensure Level Switch is securely mounted. 4. Inspect electrical signal cable for any physical damage. 5. Check cable gland and terminal box cover are secure. 6. Remove Level switch cover and inspect switch mechanism MERCURY SWITCHES 7. Visually inspect Switches for any short circuit damage. 8. Check for small cracks in the glass tube containing the mercury. 9. Check all terminations are secure. NOTE: These cracks will allow the entrance of air into the tube causing the mercury to oxidise and appear dirty. If this condition is found replace switch immediately. DRY CONTACT SWITCHES 10. Visually inspect switches for excessive wear on actuating lever. 11. Visually inspect switches for misalignment of adjusting screw at point of contact between screw and lever. 12. Adjust mechanism to compensate for this c...

SAFETY PRECAUTIONS Before performing any task you must have a PERMIT TO WORK (PTW). Observe all safety precautions and any additional requirements as per work permit. Advise control room operators before starting LEVEL CONTROL LOOP and alarm check. TASKS TO BE PERFORMED: 1. Function check the LEVEL CONTROL LOOP by operating the controller. PCV must be on bypass. 2. Visually check LCV and LIC make sure the valves move smoothly. Ensure that the LIC is on manual. 3. Function check the following pump low pressure alarms by operating the appropriate switch: LSL, LSLL, LI; and check calibration of all LT. Check level recorder and replace pens and paper if need. 4. Record all set points. 5. Record any abnormality below and advise supervisor. 6. Sign-off on all work orders and permit. 7. Document any abnormality on WO & in CMMS.

TASKS TO BE PERFORMED: 1. Annual Function Check and Calibration of Pressure Low Low Switches. 2. Inspect Switch for any physical damage. 3. Ensure Switch is securely mounted. 4. Check impulse line is securely fastened. 5. Check drain valve are closed. 6. Inspect impulse line connections for leaks. 7. Ensure drain valves are plugged and there are no leaks. 8. Inspect electrical signal cable for any physical damage. 9. Check cable gland is secure. Pressure Switches, to be calibrated against hand held Digital Druck Comparator or Pressure Pump. Use an Accurate Test gauge with a range suitable for the device being tested. 10. Isolate Switch from process and de-pressurise. 11. Check that the Low Low Pressure Alarm has been received in control Room. 12. Connect pressure source and apply pressure to the switch to above the required set point and ensure alarm has reset in control room. 13. Slowly decrease pressure to the required set point. 14. Check that the...

TASKS TO BE PERFORMED: 1. Annual Function Test and Calibration of LEVEL SWITCH LOW ALARM. 2. Inspect Level Switch for any physical damage. 3. Ensure Level Switch is securely mounted. 4. Inspect electrical signal cable for any physical damage. 5. Check cable gland and terminal box cover are secure. 6. Remove Level switch cover and inspect switch mechanism. 7. Visually inspect Switches for any short circuit damage. 8. Check all terminations are secure. 9. Visually inspect switches for excessive wear on actuating lever. 10. Visually inspect switches for misalignment of adjusting screw at point of contact between screw and lever. 12. Adjust mechanism to compensate for this condition. If this cannot be corrected replace switch immediately. 13. Isolate Level Switch Low from the process by closing the bridle manual isolation valves where fitted. 14. Where possible drain the process fluid from the chamber to a pre-determined level where the Low Alarm should have...

Note: Prior to Commencing this task obtain the information required is as follows: A) Span is 4 to 20 milliamps. B) Relay actuation Set point. C) Cut calibration (grind out value). D) Temperature coefficient. All these values may be entered with the three buttons located on the front of the water cut monitor. TASKS TO BE PERFORMED: 1. Annual Function Check and Calibration of Invalco Analyser Transmitter. 2. Inspect Analyser Transmitters for any physical damage. 3. Ensure Transmitter is securely mounted. 4. Inspect electrical cable and fitting for any physical damage. 5. Check the span setting of the unit is 4 to 20 Milli Amps. 6. Depress all three buttons on the front of the WCM to enter the programming mode. 7. Press enter to accept the delay and to proceed to the next display. 8. The display will now read Undo changes Y/N with the N flashing for NO. 9. The left arrow will toggle the cursor between YES and NO. 10. DO NOT SELECT YES UNLESS YOU IN...

TASKS TO BE PERFORMED: 1. Annual Inspection and calibration of Temperature Switch High High. 2. Inspect Switch for any physical damage. 3. Ensure Switch is securely mounted. 4. Check temperature Switch and thermowell are securely fastened. 5. Inspect electrical cable and conduit for any physical damage. 6. Check Switch covers are secure. 7. Isolate Switch. 8. Remove to workshop for calibration if required. 9. Connect multimeter set to read resistance to the switch output terminals. 10. Place sensing bulb in temperature bath and adjust the bath temperature slowly to the specified alarm temperature. 11. Check the switch operates at the correct set point, adjust as required. 12. Reduce temperature setting on bath and ensure switch resets, note the amount of hysteresis on the switch. 13. If adjustments are made, repeat steps 9 to 12 till correct set point is achieved 14. Complete Instrument Calibration Sheet. 15. On competition refit switch in plant. ...