Inventory
Equipment Calibration
Meter Proving
Ticketing/Measurment
Misc.
100
This describes the process, controls and equipment required for inventory and measurement of static liquid in above ground storge tanks.
What is The Product Measurement Manual
100
PET
What is a Portable Electronic Thermometer? ------------- Product Measurement Manual Section: 6.1 ------------ Portable electronic thermometer used for verifications of field installed temperature transducers.
100
Prover ball inspection interval under normal conditions.
What is Annually? ------------- Product Measurement Manual Section: 5.2.3.6
100
The method Colonial uses to keep track of all pipeline receipts and deliveries.
What are Measurement Tickets? ------------- Product Measurement Manual Section: 4.1.2 --------------- The measurement ticket is the primary record of all pipeline receipts and deliveries. All records reflecting the volumes to be accounted for to the shipper, the producer and the appropriate regulatory bodies are based on ticket records. For most Colonial Pipeline Company systems, transportation revenues are determined from the volumes received or delivered and indicated on the ticket record
100
Where you can find the Product Measurement Manual.
What is the Coloinal homepage under manuals? -------------- – It is located on line under manuals or you can go to departments and click on measurement and you find it there also.
200
These are the two methods used to obtain the level of petroleum product in a tank?
What are Automatic tank gauge system (Sabb and Varec.) and Manual gauging method ------------ Product Measurement Manual Section: 3.1.3.2----------- Both automatic and manual gauging methods provide accurate level indications of the tank. When reliable equipment, tank strapping tables and gauging procedures are applied during the gauging process, the net volume contained in the tank can be determined within ± 0.05% of the true volume of the tank.
200
The allowable temperature difference between the transducer and PET.
What is +/- 0.2 degrees Farenheit ------------ Product Measurement Manual Section: 5.2.2.2 ----------- Temperature readings are within ± 0.2°F between transducer and PET. A follow-up evaluation is required anytime temperature variation is greater than ±0.2°F to determine whether temperature transducer or PET requires calibration. 3) Frequency: At least once per week under flowing conditions
200
5 days
What is the proving frequency for orgin custody meters? ----------- Product Measurement Manual Section: 2.1.3.1 ------------ All origin custody meters shall be proved on five-day proving cycles.
200
The allowable volume discrepancy between a shipper tank & Colonial meter.
What is +/-0.25 % of the measured volume? ------------ Product Measurement Manual Section: 4.1.3.1 ----------- Differences between shipper tank & Colonial meters shall only be reviewed when a volume discrepancy exceeds a threshold tolerance of ± 0.25% of the measured volume. Discrepancies that occur during simultaneous shipper rack activities shall only be considered for review following three consecutive variances that occurred during similar shipper activities that exceed ± 0.25% of the measured volume. 9.2.1.3 Three consecutive variances that fall between ± 0.10% to ± 0.25% of the measured volume warrant review between shipper tank and Colonial meters 9.2.1.4 Five consecutive variances that fall between ± 0.05% to ± 0.10% of the measured volume warrant review of volumes between shipper tank and Colonial meters. Final resolution of volume discrepancies must compare Colonial meters against a shipper tank that has been isolated from loading rack activities
200
The flow range for a 16" meter.
What is 2800-28000 BPH? ------------ Product Measurement Manual Section: 2.1.5 Table 2.1 -------- For a meter to be called linear, the meter must indicate the same meter factor over a declared flow range. The flow rate at which a meter is proved should cover the range of sustained flow rates for that meter. To operate a meter within a given range, a meter linearity test must show that the meter will generate the same meter factor over the declared flow range. The meter linearity test only applies to meters that operate at flow rates greater that 25% of their full flow range. The linearity tests shall be performed by determining meter factors at three or more flow rates using standard meter proving procedures. Proving flow rates used for linearity testing should cover the expected range of sustained rates and should be separated by flow rate deviations of 15%.
300
Gross Volume X Composite Correction Factor
What is net volume? ---------- - Tank strapping charts and API correction tables 3.1.3.6 Use tank strapping charts to obtain the Gross Volume in the tank for the observed level reading on the tank. Use API correction table 5B to convert the observed gravity reading to an equivalent gravity at 60° (API corrected gravity). Use API correction table 6B to obtain a volume correction factor for the API corrected gravity. Use the following formula to determine Net Volume. Net Volume = Gross Volume x Correction Factor
300
PET recertification interval.
What is Annually? ----------- Product Measurement Manual Section: 5.2.2
300
The potential consequence of manipulating meter valve positions to achieve desired flow rates.
What is damage to valve seats? Altering valve posistions (pinching down on meter outlet or inlet valves) ------------- – It cost CPC approximately $8000.00 every time we have to replace the seats in a general twin seal valve. The seats have rubber seals around them, when you pinch back on the valve the product is directly hitting the seals and it causes them to tear or break loose which causes the valve not to block and bleed.
300
The position/person who has approval authority for a ticket volume adjustment of 500 barrels or less.
Who is the Lead Operator? ------------ Product Measurement Manual Section: Table 4.1.1
300
A group with these initials influences Colonial's Product Measurement Manual.
What is API - American Petroleum Institute? ------------- Product Measurement Manual Section: Introduction
400
The volume discrepancy that requires a manual tank gauge when the stock book inventory and the closing inventory have a variance.
What is +/- 0.5% ------------ Product Measurement Manual Section: 3.1.3.7 ------------- Any tank having a +/- 0.25% volume variance between the Stock Book inventory and the closing inventory will require manual gauging for the current month‟s closeout.
400
The requirement for verification of a field temperature transducer.
What is Weekly? ---------- Product Measurement Manual Section: 5.2.2.2 ---------- - Frequency: (Only applies under flowing conditions) Attended Facilities - At least once per week Intermittently Attended Facilities - When the operator is present 4) Recording Requirements: Enter results in Daily Operating Log.
400
The process by which a metered volume is compared against a known quanitity.
What is Meter Proving? ------------ Product Measurement Manual Section: 5.3
400
This is the term used to describe when multiple tickets are changed, but the original total volume does not change.
What is a group ticket? ----------- Product Measurement Manual Section: 4.1.3.3 ---------- Volume adjustments may be required to split tickets, to correct meter switch timing issues, or to create new tickets where the original ticket volume does not change. An example is the meter switch did not occur at the right time and one ticket is increased and another ticket is decreased. These ticket corrections impacting multiple tickets but the total volume of the old compared to new or revised tickets does not change are referred to as „Group Tickets‟. The word GROUP must be typed into the comments field along with the other ticket number associated with the change group (Ticket Comment Example: GROUP 25 meter switch timing was incorrect) Ticket changes without the GROUP included in the comments field will be treated as single ticket volume changes..
400
The product characteristic which has the greatest impact on measurement.
What is Temperature? ------------- Product Measurement Manual Section: 5.2.2
500
A meter with an established meter factor determined by using a meter prover and used to prove another meter.
What is a Master meter? ----------- Product Measurement Manual Section: 5.3 ------------ The master meter must be proved using a meter prover that has been calibrated using the water-draw method.
500
The time requirement for block and bleed test on meter run valves under normal conditions.
What is Monthly? ------------ Product Measurement Manual Section: 5.2.3.4 ------------ Once per month OR prior to meter proving following repair or replacement of valve seals.
500
Temperature variation of 10 degrees, gravity change of +/- 15 degrees, and/or flow rate violation of +/- 30%.
What are the conditons that warrant a re-proving? -------------- Product Measurement Manual Section: 2.1.3.1
500
Tickets must be verified at this interval and time.
What is Daily at midnight? ------------
500
This person is the OLT sponsor for Colonial's measurement steering team.
Who is Buster Brown?
M
e
n
u