Directive 017: Measurement Requirements for Oil and Gas ...

1 Directive 017. Release date: December 13, 2018. Effective date: December 13, 2018 (except where otherwise stated). Replaces previous edition issued November 21, 2018. Measurement Requirements for Oil and Gas Operations Contents 1. Purpose of This Directive .. 1. What's New in This Edition? .. 1. Intent .. 4. Definitions .. 5. 1 Standards of Accuracy .. 1-1. Introduction .. 1-1. Applicability and Use of Uncertainties .. 1-1. Maximum Uncertainty of Monthly Volume .. 1-2. Single Point Measurement Uncertainty .. 1-3. Confidence Level .. 1-3. Determination of Uncertainties .. 1-3. Example 1-4. Explanation of Standards of Accuracy .. 1-4. Oil Systems .. 1-4. Gas Systems .. 1-12. Injection/Disposal Systems .. 1-26. Standards of Accuracy Summary .. 1-29. Oil Systems .. 1-29. Gas Systems .. 1-29. Injection Systems .. 1-30. Measurement Schematics .. 1-30. Definitions .. 1-31. Measurement Schematic Requirements .. 1-32. Directive 017: Measurement Requirements for Oil and Gas Operations (December 2018) i Alberta Energy Regulator Schematic Updates.

2 1-34. Implementation .. 1-35. Schematic 1-35. Facility Delineation Requirements .. 1-35. 2 Calibration and Proving .. 2-1. Definitions .. 2-1. Applicability .. 2-2. Frequency .. 2-2. Accuracy of Provers and Calibration Instruments .. 2-3. Gas Meters .. 2-4. General Calibration Requirements .. 2-4. Gas Meter Internal Inspection .. 2-5. Orifice Meters .. 2-9. Electronic Flow Measurement 2-9. Liquid Meters .. 2-12. Oil Meters .. 2-18. Live Oil Meters .. 2-18. Dead Oil Meters .. 2-21. Condensate Meters .. 2-21. Condensate at Equilibrium Conditions .. 2-21. Condensate at Flow-line Conditions .. 2-21. Other Liquid Hydrocarbon Meters .. 2-22. Water Meters .. 2-22. Product Analyzers .. 2-23. Automatic Tank Gauges .. 2-23. Inventory 2-23. Delivery Point Measurement .. 2-24. Using Tank Gauging for Oil Measurement .. 2-24. Inventory 2-24. Delivery Point Measurement .. 2-25. Weigh Scales .. 2-25. Exceptions .. 2-26. 3 Proration Factors, Allocation Factors, and Metering Difference.

3 3-1. Proration Factors and Allocation Factors .. 3-1. Description .. 3-1. Target Factors .. 3-3. Exception .. 3-4. Acceptable Proration Factors and Allocation Factor Ranges .. 3-4. ii Directive 017: Measurement Requirements for Oil and Gas Operations (December 2018). Alberta Energy Regulator Metering Difference .. 3-5. Description .. 3-5. Target Metering Difference .. 3-6. 4 Gas Measurement .. 4-1. General Requirements .. 4-1. Gas Measurement and Accounting Requirements for Various Battery/Facility Types .. 4-1. Oil/Bitumen 4-1. Gas 4-2. Base Requirements for Gas Measurement .. 4-11. System Design and Installation of Measurement Devices .. 4-11. Volumetric Calculations .. 4-16. Production Data Verification, Audit Trail, and Volumetric Data Amendments .. 4-19. Operations Base Requirements for Acceptable Gas Measurement and Reading of Gas Charts .. 4-24. Exceptions .. 4-29. Electronic Flow Measurement (EFM) for Gas .. 4-36. Vent Gas Measurement Requirements .

4 4-50. References .. 4-51. 5 Site-Specific Deviation from Base 5-1. Specialized Terminology Defined .. 5-1. Site-Specific Examples .. 5-1. Site-Specific Approval Applications .. 5-2. Chart Cycles Extended Beyond the Required Time Period .. 5-3. Exceptions .. 5-3. Applications .. 5-5. Considerations of Site-specific Approvals .. 5-6. Gas Proration Outside Southeastern Alberta Shallow Gas Zones/Area .. 5-6. Exceptions .. 5-6. Applications .. 5-8. Considerations for Site-Specific Approval .. 5-9. Measurement by Difference .. 5-9. Gas MbD .. 5-9. Oil MbD .. 5-17. Exceptions .. 5-19. Applications .. 5-26. Considerations for Site-Specific Approval .. 5-26. Fuel Gas MbD .. 5-28. Surface Commingling of Multiple Gas Zones/Wells .. 5-29. Directive 017: Measurement Requirements for Oil and Gas Operations (December 2018) iii Alberta Energy Regulator Exceptions .. 5-30. Applications .. 5-32. Considerations for Site-specific Approval .. 5-33.

5 Gas Effluent Wells Exemption and Reduction for Testing Frequency .. 5-33. 6 Conventional Oil Measurement .. 6-1. General Requirements .. 6-1. General Measurement , Accounting, and Reporting Requirements for Various Battery Types .. 6-1. General Accounting Formula .. 6-1. Oil Batteries .. 6-1. Gas Batteries Producing Oil .. 6-3. Base Requirements for Oil Measurement .. 6-4. System Design and Installation of Measurement Devices .. 6-4. Volumetric Calculations .. 6-4. Production Data Verification and Audit Trail .. 6-5. Volumetric Data Amendments .. 6-6. Field Operations .. 6-8. Production Hours .. 6-8. Fluid Sampling Requirements for S&W Determination (and Density) .. 6-8. S&W Analysis .. 6-8. Proration Well Testing .. 6-8. Oil Proration Battery Accounting and Reporting Requirements .. 6-10. Proration Estimated Volume 6-12. Calculate Proration Factors and Monthly 6-14. Condensate Receipts at an Oil Battery .. 6-14. Combined (Cascade Testing).

6 6-15. EFM for Oil Systems .. 6-16. Reporting Requirements and Scenarios Based on Alberta Energy Royalty Regimes for Wells Producing Oil .. 6-16. AER Classification Oil Wells .. 6-16. AER Classification Gas Well Producing Oil .. 6-19. 7 Gas Proration Batteries .. 7-1. General Requirements .. 7-1. Group Measurement .. 7-2. Stabilized Flow and Representative Flow .. 7-3. Gas Multiwell Proration SE Alberta Batteries .. 7-3. Group Measurement .. 7-4. Size of a SE Alberta Multiwell Gas Proration Battery .. 7-4. iv Directive 017: Measurement Requirements for Oil and Gas Operations (December 2018). Alberta Energy Regulator Testing Requirements .. 7-4. Production Accounting and Reporting Requirements .. 7-5. Gas Multiwell Proration Outside SE Alberta 7-6. Well Testing Requirements .. 7-7. Production Volume Calculations .. 7-9. Exception .. 7-11. Gas Multiwell Effluent Measurement Proration Batteries .. 7-13. Well Testing .. 7-15. Production Volume Calculations.

7 7-23. Sampling and Analysis Requirements .. 7-27. Exception .. 7-28. Well Effluent Measurement in the Duvernay and Montney Plays .. 7-29. Qualifying Criteria .. 7-30. Measurement System Requirements .. 7-31. Operational Scenario 1 Hydrocarbon Liquids are Recombined into the Gathering 7-33. Operational Scenario 2 Hydrocarbon Liquids are Delivered to Sales at the Battery .. 7-37. Exception for the Number of Test Separators That May be Used During Post-Fracturing Well Flow Back, Cleanup, and Flow Testing .. 7-40. 8 Gas Liquid Sampling and Analysis .. 8-1. General .. 8-1. Sampling Requirements .. 8-2. Sample Point and Probes .. 8-3. H2S Sampling and 8-5. Compositional Analysis of Natural Gas .. 8-7. Gas Equivalent Factor Determination from Condensate .. 8-8. Calculated Compositional Analyses .. 8-8. Sampling and Analysis Frequency .. 8-10. Alberta Shallow Gas Zones / Areas or Coalbed Methane Wells (with Minimal Water) .. 8-12. Gas Proration Outside SE Alberta Shallow Gas Zones / Areas (Excluding Effluent Proration Battery).

8 8-14. Multiwell Effluent Proration Battery .. 8-16. Single Gas Well or Multiwell Group Gas Battery and Shallow Gas Well or Coalbed Methane Well with No Condensate or Oil .. 8-19. Single Gas Well or Multiwell Group Gas Battery with Condensate or Oil .. 8-21. Gas Storage Schemes .. 8-23. Directive 017: Measurement Requirements for Oil and Gas Operations (December 2018) v Alberta Energy Regulator Gas Cycling Scheme .. 8-24. Gas Sales/Delivery .. 8-25. Gas Plants and Gas Gathering Systems .. 8-26. Conventional Oil Facilities .. 8-27. Multiwell Proration Oil Battery .. 8-28. Miscible/Immiscible Flood .. 8-29. Heavy Oil/Crude Bitumen Facilities .. 8-30. 9 Cross-Border Measurement .. 9-1. General Requirements .. 9-1. Cross-Border Sampling Requirements .. 9-1. Cross-Border Measurement Points .. 9-2. 10 Trucked Liquid Measurement .. 10-1. General Requirements .. 10-1. Reporting Requirements .. 10-1. Temperature Correction 10-2. Pressure Correction Requirements .

9 10-2. General Trucked Liquid Measurement , Accounting, and Reporting Requirements for Various Facility Types .. 10-2. Conventional Oil Batteries .. 10-2. Custom Treating Facilities .. 10-4. Pipeline Terminals .. 10-4. Clean Oil Terminals .. 10-5. Gas Plants, Gas Batteries, and Gas Gathering Systems .. 10-5. Water Injection/Disposal Facilities .. 10-5. Waste Processing Facilities .. 10-5. Heavy Oil and Crude Bitumen 10-7. Design and Installation of Measurement Systems .. 10-7. Meters .. 10-7. Weigh Scales .. 10-8. Exceptions .. 10-8. Load Fluids .. 10-10. Split Loads .. 10-10. Sampling and Analysis .. 10-11. Automatic Sampling .. 10-11. Manual Spot (Grab) Sampling .. 10-12. S&W Determination .. 10-12. Density Determination .. 10-13. Volume Determination .. 10-13. vi Directive 017: Measurement Requirements for Oil and Gas Operations (December 2018). Alberta Energy Regulator Tank Gauging .. 10-13. Weigh Scales .. 10-14. Meters.

10 10-14. 11 Acid Gas and Sulphur 11-1. General Requirements .. 11-1. Acid Gas Measurement .. 11-2. Determining Acid Gas on a Dry Basis .. 11-2. Sulphur Measurement and Pit Volume Determination .. 11-6. Sulphur Pit Volume/Tonnage Determination .. 11-6. Sulphur Measurement .. 11-7. Sulphur Balance Calculation for Sour Gas Processing Plants .. 11-9. Overview of Plant Inlet and Outlet Points for H2S .. 11-9. Determining H2S Contents .. 11-9. Calculation Procedure for Estimating the Plant Sulphur Inlet Mass per Day .. 11-11. Calculation Procedure for Estimating the Plant Sulphur Outlet Mass per Day .. 11-12. Production Data Verification and Audit 11-17. How to Complete the S-30 Monthly Gas Processing Plant Sulphur Balance Report .. 11-17. 12 Heavy Oil Measurement .. 12-1. General Measurement Requirements .. 12-1. Temperature Correction 12-1. Pressure Correction Requirements .. 12-1. EFM Requirements .. 12-1. Diluent/Condensate Receipts and Blending.