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1
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Directive 017 **Release date:** December 11, 2024 **Effective date:** December 11, 2024 **Replaces previous edition issued March 17, 2022** ## Measurement Requirements for Oil and Gas Operations ### Contents - **Introduction** - Purpose of This Directive - What's New in This Edition? - Intent - Definitions - **1 Standards of Accuracy** - **1.1 Introduction** - **1.2 Applicability and Use of Uncertainties** - **1.3 Maximum Uncertainty of Monthly Volume** - **1.4 Single Point Measurement Uncertainty** - **1.5 Confidence Level** - **1.6 Determination of Uncertainties** - **1.6.1 Example Calculation** - **1.7 Explanation of Standards of Accuracy** - **1.7.1 Oil Systems** - **1.7.2 Gas Systems** - **1.7.3 Injection/Disposal Systems** - **1.8 Standards of Accuracy – Summary** - **1.8.1 Oil Systems** - **1.8.2 Gas Systems** - **1.8.3 Injection Systems** - **1.9 Measurement Schematics** - **Definitions** - **1.9.1 Measurement Schematic Requirements** --- **Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)**
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2
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Alberta Energy Regulator ## 1.9.2 Schematic Updates - Page 1-33 ## 1.9.3 Implementation - Page 1-34 ## 1.9.4 Schematic Availability - Page 1-34 ## 1.10 Facility Delineation Requirements - Page 1-34 ## 2 Calibration and Proving ### 2.1 Definitions - Page 2-1 ### 2.2 Applicability - Page 2-2 ### 2.3 Frequency - Page 2-2 ### 2.4 Accuracy of Provers and Calibration Instruments - Page 2-3 ### 2.5 Gas Meters #### 2.5.1 General Calibration Requirements - Page 2-4 #### 2.5.2 Gas Meter Internal Inspection - Page 2-5 #### 2.5.3 Orifice Meters - Page 2-9 #### 2.5.4 Electronic Flow Measurement Calibration - Page 2-9 ### 2.6 Liquid Meters - Page 2-12 ### 2.7 Oil Meters #### 2.7.1 Live Oil Meters - Page 2-18 #### 2.7.2 Dead Oil Meters - Page 2-21 ### 2.8 Condensate Meters #### 2.8.1 Condensate at Equilibrium Conditions - Page 2-21 #### 2.8.2 Condensate at Flow-line Conditions - Page 2-21 ### 2.9 Other Liquid Hydrocarbon Meters - Page 2-22 ### 2.10 Water Meters - Page 2-22 ### 2.11 Product Analyzers - Page 2-23 ### 2.12 Automatic Tank Gauges #### 2.12.1 Inventory Management - Page 2-23 #### 2.12.2 Delivery Point Measurement - Page 2-24 ### 2.13 Using Tank Gauging for Oil Measurement #### 2.13.1 Inventory Measurement - Page 2-24 #### 2.13.2 Delivery Point Measurement - Page 2-25 ### 2.14 Weigh Scales - Page 2-25 ### Exceptions - Page 2-26 ## 3 Proration Factors, Allocation Factors, and Metering Difference ### 3.1 Proration Factors and Allocation Factors #### 3.1.1 Description - Page 3-1 #### 3.1.2 Target Factors - Page 3-3 #### 3.1.3 Exception - Page 3-4 #### 3.1.4 Acceptable Proration Factors and Allocation Factor Ranges - Page 3-4 --- **ii Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)**
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3
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Alberta Energy Regulator ## 3.2 Metering Difference - Description - Target Metering Difference ## 4 Gas Measurement ### 4.1 General Requirements ### 4.2 Gas Measurement and Accounting Requirements for Various Battery/Facility Types #### 4.2.1 Oil/Bitumen Batteries #### 4.2.2 Gas Batteries/Facilities ### 4.3 Base Requirements for Gas Measurement #### 4.3.1 System Design and Installation of Measurement Devices #### 4.3.2 Volumetric Calculations #### 4.3.3 Production Data Verification, Audit Trail, and Volumetric Data Amendments #### 4.3.4 Operations – Base Requirements for Acceptable Gas Measurement and Reading of Gas Charts #### 4.3.5 Exceptions #### 4.3.6 Electronic Flow Measurement (EFM) for Gas #### 4.3.7 Vent Gas Measurement Requirements ### 4.4 References ## 5 Site-Specific Deviation from Base Requirements ### Specialized Terminology Defined #### 5.1 Site-Specific Examples #### 5.2 Site-Specific Approval Applications #### 5.3 Chart Cycles Extended Beyond the Required Time Period ##### 5.3.1 Exceptions ##### 5.3.2 Applications ##### 5.3.3 Considerations of Site-specific Approvals #### 5.4 Gas Proration Outside Southeastern Alberta Shallow Gas Zones/Area ##### 5.4.1 Exceptions ##### 5.4.2 Applications ##### 5.4.3 Considerations for Site-Specific Approval #### 5.5 Measurement by Difference ##### 5.5.1 Gas MbD ##### 5.5.2 Oil MbD ##### 5.5.3 Exceptions ##### 5.5.4 Applications ##### 5.5.5 Considerations for Site-Specific Approval ##### 5.5.6 Fuel Gas MbD #### 5.6 Surface Commingling of Multiple Gas Zones/Wells --- **Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)**
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4
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Alberta Energy Regulator ## 5.6.1 Exceptions - Page 5-29 ## 5.6.2 Applications - Page 5-32 ## 5.6.3 Considerations for Site-specific Approval - Page 5-33 ## 5.7 Gas Effluent Wells Exemption and Reduction for Testing Frequency - Page 5-33 ## 6 Conventional Oil Measurement - Page 6-1 ### 6.1 General Requirements - Page 6-1 ### 6.2 General Measurement, Accounting, and Reporting Requirements for Various Battery Types - Page 6-1 #### 6.2.1 General Accounting Formula - Page 6-1 #### 6.2.2 Oil Batteries - Page 6-1 #### 6.2.3 Gas Batteries Producing Oil - Page 6-3 ### 6.3 Base Requirements for Oil Measurement - Page 6-4 #### 6.3.1 System Design and Installation of Measurement Devices - Page 6-4 #### 6.3.2 Volumetric Calculations - Page 6-4 #### 6.3.3 Production Data Verification and Audit Trail - Page 6-5 #### 6.3.4 Volumetric Data Amendments - Page 6-6 ### 6.4 Field Operations - Page 6-8 #### 6.4.1 Production Hours - Page 6-8 #### 6.4.2 Fluid Sampling Requirements for S&W Determination (and Density) - Page 6-8 #### 6.4.3 S&W Analysis - Page 6-8 #### 6.4.4 Proration Well Testing - Page 6-8 ### 6.5 Oil Proration Battery Accounting and Reporting Requirements - Page 6-10 #### 6.5.1 Proration Estimated Volume Calculation - Page 6-12 #### 6.5.2 Calculate Proration Factors and Monthly Production - Page 6-14 ### 6.6 Condensate Receipts at an Oil Battery - Page 6-14 ### 6.7 Combined (Cascade Testing) - Page 6-15 ### 6.8 EFM for Oil Systems - Page 6-16 ### 6.9 Reporting Requirements and Scenarios Based on Alberta Energy Royalty Regimes for Wells Producing Oil - Page 6-16 #### 6.9.1 AER Classification – Oil Wells - Page 6-16 #### 6.9.2 AER Classification – Gas Well Producing Oil - Page 6-19 ## 7 Gas Proration Batteries - Page 7-1 ### 7.1 General Requirements - Page 7-1 #### 7.1.1 Group Measurement - Page 7-2 #### 7.1.2 Stabilized Flow and Representative Flow - Page 7-3 ### 7.2 Gas Multiwell Proration SE Alberta Batteries - Page 7-3 #### 7.2.1 Group Measurement - Page 7-4 #### 7.2.2 Size of a SE Alberta Multiwell Gas Proration Battery - Page 7-4 --- iv Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)
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5
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Alberta Energy Regulator ## 7.2.3 Testing Requirements - Page 7-4 ## 7.2.4 Production Accounting and Reporting Requirements - Page 7-5 ## 7.3 Gas Multiwell Proration Outside SE Alberta Batteries - Page 7-6 ### 7.3.1 Well Testing Requirements - Page 7-7 ### 7.3.2 Production Volume Calculations - Page 7-9 ### 7.3.3 Exception - Page 7-11 ## 7.4 Gas Multiwell Effluent Measurement Proration Batteries - Page 7-13 ### 7.4.1 Well Testing - Page 7-15 ### 7.4.2 Production Volume Calculations - Page 7-23 ### 7.4.3 Sampling and Analysis Requirements - Page 7-27 ### 7.4.4 Exception - Page 7-28 ## 7.5 Well Effluent Measurement in the Duvernay and Montney Plays - Page 7-29 ### 7.5.1 Qualifying Criteria - Page 7-30 ### 7.5.2 Measurement System Requirements - Page 7-31 ### 7.5.3 Operational Scenario 1 – Hydrocarbon Liquids are Recombined into the Gathering System - Page 7-33 ### 7.5.4 Operational Scenario 2 – Hydrocarbon Liquids are Delivered to Sales at the Battery - Page 7-37 ### 7.5.5 Exception for the Number of Test Separators That May be Used During Post-Fracturing Well Flow Back, Cleanup, and Flow Testing - Page 7-40 ## 8 Gas Liquid Sampling and Analysis - Page 8-1 ### 8.1 General - Page 8-1 ### 8.2 Sampling Requirements - Page 8-2 #### 8.2.1 Sample Point and Probes - Page 8-3 #### 8.2.2 H₂S Sampling and Analysis - Page 8-5 #### 8.2.3 Compositional Analysis of Natural Gas - Page 8-7 ### 8.3 Gas Equivalent Factor Determination from Condensate - Page 8-8 #### 8.3.1 Calculated Compositional Analyses - Page 8-8 ### 8.4 Sampling and Analysis Frequency - Page 8-10 #### 8.4.1 Alberta Shallow Gas Zones / Areas or Coalbed Methane Wells (with Minimal Water) - Page 8-12 #### 8.4.2 Gas Proration Outside SE Alberta Shallow Gas Zones / Areas (Excluding Effluent Proration Battery) - Page 8-14 #### 8.4.3 Multiwell Effluent Proration Battery - Page 8-16 #### 8.4.4 Single Gas Well or Multiwell Group Gas Battery and Shallow Gas Well or Coalbed Methane Well with No Condensate or Oil - Page 8-19 #### 8.4.5 Single Gas Well or Multiwell Group Gas Battery with Condensate or Oil - Page 8-21 #### 8.4.6 Gas Storage Schemes - Page 8-23 --- **Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)**
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6
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
--- Alberta Energy Regulator 8.4.7 Gas Cycling Scheme……………………………………………………………8-24 8.4.8 Gas Sales/Delivery…………………………………………………………8-25 8.4.9 Gas Plants and Gas Gathering Systems……………………………………8-26 8.4.10 Conventional Oil Facilities………………………………………………8-27 8.4.11 Multiwell Proration Oil Battery…………………………………………8-28 8.4.12 Miscible/Immiscible Flood………………………………………………8-29 8.4.13 Heavy Oil/Crude Bitumen Facilities……………………………………8-30 9 Cross-Border Measurement…………………………………………………………9-1 9.1 General Requirements…………………………………………………………9-1 9.2 Cross-Border Sampling Requirements………………………………………9-1 9.3 Cross-Border Measurement Points……………………………………………9-2 10 Trucked Liquid Measurement………………………………………………………10-1 10.1 General Requirements…………………………………………………………10-1 10.1.1 Reporting Requirements…………………………………………………10-1 10.1.2 Temperature Correction Requirements…………………………………10-2 10.1.3 Pressure Correction Requirements………………………………………10-2 10.2 General Trucked Liquid Measurement, Accounting, and Reporting Requirements for Various Facility Types…………………………………………………………10-2 10.2.1 Conventional Oil Batteries………………………………………………10-2 10.2.2 Custom Treating Facilities………………………………………………10-4 10.2.3 Pipeline Terminals………………………………………………………10-4 10.2.4 Clean Oil Terminals………………………………………………………10-5 10.2.5 Gas Plants, Gas Batteries, and Gas Gathering Systems…………………10-5 10.2.6 Water Injection/Disposal Facilities………………………………………10-5 10.2.7 Waste Processing Facilities………………………………………………10-5 10.2.8 Heavy Oil and Crude Bitumen Facilities…………………………………10-7 10.3 Design and Installation of Measurement Systems……………………………10-7 10.3.1 Meters……………………………………………………………………10-7 10.3.2 Weigh Scales………………………………………………………………10-8 10.3.3 Exceptions…………………………………………………………………10-8 10.3.4 Load Fluids…………………………………………………………………10-10 10.3.5 Split Loads…………………………………………………………………10-10 10.4 Sampling and Analysis…………………………………………………………10-11 10.4.1 Automatic Sampling………………………………………………………10-11 10.4.2 Manual Spot (Grab) Sampling……………………………………………10-12 10.4.3 S&W Determination………………………………………………………10-12 10.4.4 Density Determination……………………………………………………10-13 10.5 Volume Determination…………………………………………………………10-13 vi Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)
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7
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Alberta Energy Regulator ## 10.5.1 Tank Gauging - Page 10-13 ## 10.5.2 Weigh Scales - Page 10-14 ## 10.5.3 Meters - Page 10-14 ## 11 Acid Gas and Sulphur Measurement ### 11.1 General Requirements - Page 11-1 ### 11.2 Acid Gas Measurement #### 11.2.1 Determining Acid Gas on a Dry Basis - Page 11-2 ### 11.3 Sulphur Measurement and Pit Volume Determination #### 11.3.1 Sulphur Pit Volume/Tonnage Determination - Page 11-6 #### 11.3.2 Sulphur Measurement - Page 11-7 ### 11.4 Sulphur Balance Calculation for Sour Gas Processing Plants #### 11.4.1 Overview of Plant Inlet and Outlet Points for H₂S - Page 11-9 #### 11.4.2 Determining H₂S Contents - Page 11-9 #### 11.4.3 Calculation Procedure for Estimating the Plant Sulphur Inlet Mass per Day - Page 11-11 #### 11.4.4 Calculation Procedure for Estimating the Plant Sulphur Outlet Mass per Day - Page 11-12 ### 11.5 Production Data Verification and Audit Trail - Page 11-17 ### 11.6 How to Complete the S-30 Monthly Gas Processing Plant Sulphur Balance Report - Page 11-17 ## 12 Heavy Oil Measurement ### 12.1 General Measurement Requirements #### 12.1.1 Temperature Correction Requirements - Page 12-1 #### 12.1.2 Pressure Correction Requirements - Page 12-1 #### 12.1.3 EFM Requirements - Page 12-1 #### 12.1.4 Diluent/Condensate Receipts and Blending - Page 12-1 #### 12.1.5 Water Measurement - Page 12-2 #### 12.1.6 Well Proration Testing - Page 12-2 #### 12.1.7 Heavy Oil Receipt, Delivery, or Sales - Page 12-2 ### 12.2 Primary and Secondary Production (Nonthermal In Situ Oil Sands Schemes) #### 12.2.1 Battery Types - Page 12-3 #### 12.2.2 Gas Measurement and Reporting - Page 12-5 #### 12.2.3 Oil and Water Deliveries to a Treatment Facility - Page 12-7 #### 12.2.4 Well Test Measurement with Tank Gauging or Metering - Page 12-7 ### 12.3 Thermal In Situ Oil Sands Operations #### 12.3.1 Definitions - Page 12-9 #### 12.3.2 Bitumen, Diluent, or Dilbit Delivery Point Measurement - Page 12-10 #### 12.3.3 Gas Measurement - Page 12-11 #### 12.3.4 Steam Measurement - Page 12-12 #### 12.3.5 Water Measurement - Page 12-14 #### 12.3.6 Water/Steam Primary and Secondary Measurement - Page 12-14 --- **Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)** vii
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8
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Alberta Energy Regulator ## 12.3.7 Solvent Measuring 12-15 ## 12.3.8 Production Measurement 12-16 ## 12.3.9 Well Production Measurement 12-16 ## 12.3.10 Proration Factors 12-18 ## 12.3.11 Internal Inspection Exceptions 12-18 ## 12.4 Single Point Measurement Uncertainties 12-19 ## 13 Condensate and High-Vapour-Pressure Liquid Measurement and Reporting 13-1 ### 13.1 Definitions 13-1 ### 13.2 General Measurement and Reporting Requirements 13-2 #### 13.2.1 Measurement Requirements 13-2 #### 13.2.2 Reporting Requirements 13-2 ### 13.3 Reporting Scenarios 13-3 ## 14 Liquid Measurement 14-1 ### 14.1 General Requirements 14-1 #### 14.1.1 Scope 14-1 #### 14.1.2 Application of API Measurement Standards 14-1 #### 14.1.3 System Design and Installation 14-1 ### 14.2 Volume Measurement 14-3 #### 14.2.1 Meter Selection 14-3 ### 14.3 Shrinkage 14-4 #### 14.3.1 Live Oil Shrinkage 14-4 #### 14.3.2 Hydrocarbon Blending and Flashing Shrinkages 14-4 #### 14.3.3 Shrinkage Factor Determination 14-5 #### 14.3.4 Shrinkage Factor Application 14-5 ### 14.4 Temperature Measurement 14-6 ### 14.5 Pressure Measurement 14-7 ### 14.6 Density Determination 14-8 ### 14.7 Tank Measurement 14-8 #### 14.7.1 Tank Strapping 14-9 #### 14.7.2 Tank Sizing 14-9 #### 14.7.3 Manual Tank Gauging 14-10 #### 14.7.4 Automatic/Electronic Tank Gauging 14-10 #### 14.7.5 Tank Gauging Applications 14-10 ### 14.8 Sampling and Analysis 14-11 #### 14.8.1 Fluid Sampling Requirements for S&W and Density Determination 14-11 #### 14.8.2 S&W Determination 14-12 ### 14.9 Liquid Volume Calculations 14-13 #### 14.9.1 General Equations for Determining Liquid Volumes at Base Conditions 14-14 --- viii Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)
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9
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
# Alberta Energy Regulator ## 14.10 Electronic Flow Measurement for Liquid Systems - Performance Evaluation - Test Cases for Verification of Oil Flow Calculation Programs - Test Cases for Verification of NGL and LPG Flow Calculation Programs ## 14.11 Records - The Daily Report - The Monthly Report - The Event Log - EFM Specific Reports ## 15 Water Measurement ### 15.1 Base Requirements for Water Measurement, Volume Calculation, Production Data Verification, and Audit Trail ### 15.2 Water Measurement and Accounting Requirements for Various Battery/Facility Types #### 15.2.1 Gas Facilities #### 15.2.2 Oil Facilities #### 15.2.3 Water Source Production #### 15.2.4 Water Injection and Disposal Facility #### 15.2.5 Waste Processing and Disposal Facility #### 15.2.6 Storage and Disposal Cavern #### 15.2.7 Thermal In Situ Oil Sands Scheme #### 15.2.8 Downhole Water Disposal or Injection #### 15.2.9 Brine Production #### 15.2.10 Load Water Reporting ### 15.3 WGR Testing Methodology #### 15.3.1 WGR Testing #### 15.3.2 WGR Calculation ## Appendices ### Appendix 1 AER Documents Replaced Fully or Partially by Directive 017: Measurement Requirements for Oil and Gas Operations ### Appendix 2 Glossary ### Appendix 3 Water-Cut (S&W) Procedures ### Appendix 4 On-site Analytical Techniques for H₂S Measurement ### Appendix 5 Gas Equivalent Volume Determination ### Appendix 6 Calculated Compositional Analysis Examples ### Appendix 7 Blending Shrinkage Calculation Example ### Appendix 8 Schematic Example ### Appendix 9 Gas Group Delineation --- **Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)** ix
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10
Directive017.pdf
/home/dck/Programming/ducklake/vlm_llm_doc_processing/pdfs/Directive017.pdf
10
Alberta Energy Regulator # Tables | Table | Description | Page | |-------|-------------------------------------------------------------------------------------------------------|------| | 2.1 | Meter proving frequency requirements and proving methods | 2-14 | | 2.2 | Proving requirements for hydrocarbons, water, and emulsions | 2-15 | | 4.1 | Orifice meters design requirement | 4-11 | | 4.2 | Temperature reading frequency table for gas measurement | 4-16 | | 4.3 | Allowable deviation limits for the AGA3 (1985) equation | 4-39 | | 4.4 | Allowable deviation limits for the AGA3 (1990) equation | 4-39 | | 4.5 | Allowable deviation limits for the AGA7 equation | 4-40 | | 5.1 | Gas measurement by difference by exception and application | 5-13 | | 5.2 | Gas measurement by difference by exception and application | 5-16 | | 5.3 | Oil measurement by difference by exception and application | 5-19 | | 5.4 | Volumetric criteria for measured gas tying into a proration battery | 5-20 | | 5.5 | Volumetric criteria for measured oil delivered to an oil proration battery | 5-23 | | 5.6 | Therm for condensate delivery and reporting to a proration oil battery | 5-27 | | 6.1 | Proration well testing frequency requirements | 6-8 | | 6.2 | Proration estimated volume calculation | 6-13 | | 6.3 | Test results | 6-15 | | 7.1 | Required decimal places for volumetric calculations in gas proration batteries | 7-2 | | 7.2 | Testing frequency for SE Alberta shallow gas wells | 7-5 | | 8.1 | H₂S analysis technique comparison | 8-6 | | 8.2 | Recommended default values for C7+ properties | 8-7 | | 8.3 | Sampling and analysis frequencies for various types of facilities | 8-11 | | 11.1 | Monthly S-30 sulphur balance requirement | 11-1 | | 11.2 | Calculation of relative density (RD) on wet basis | 11-4 | | 11.3 | How to complete the S-30 monthly gas processing plant sulphur balance report | 11-19| | 12.1 | GOR or hourly rate test frequency requirements | 12-6 | | 12.2 | Accuracy coefficients for various measurement types for test tanks | 12-7 | | 12.3 | Summary of proration factors | 12-18| | 12.4 | Summary of single point measurement uncertainty | 12-19| | 14.1 | Meter types | 14-3 | | 14.2 | Temperature measurement error impact | 14-6 | | 14.3 | Temperature measurement type, calibration frequency, resolution, and calibration tolerances | 14-7 | | 14.4 | Gauge board marking gradations | 14-10| | 14.5 | Pressure and temperature compensation standards | 14-17| | 14.6 | Oil density correction test cases – density correction to 15°C | 14-21| | 14.7 | Volume correction test cases at atmospheric pressure – volume correction to 15°C and 0.0 kPa(g) | 14-22| x Directive 017: Measurement Requirements for Oil and Gas Operations (December 2024)
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Document OCR using LightOnOCR-0.9B-32k-1025

This dataset contains OCR results from images in stckmn/ocr-input-Directive017-1761352140 using LightOnOCR, a fast and compact 1B OCR model.

Processing Details

Configuration

  • Image Column: image
  • Output Column: markdown
  • Dataset Split: train
  • Batch Size: 32
  • Target Image Size: 1288px (longest dimension)
  • Max Model Length: 8,192 tokens
  • Max Output Tokens: 6,500
  • Temperature: 0.2
  • Top P: 0.9
  • GPU Memory Utilization: 80.0%

Model Information

LightOnOCR is a fast, compact OCR model that excels at:

  • ⚡ Production Speed - 5.71 pages/second on H100 GPU
  • 🎯 Compact Size - Only 1B parameters
  • 📐 LaTeX formulas - Mathematical notation in LaTeX format
  • 📊 Tables - Extracted and formatted as markdown
  • 📝 Document structure - Hierarchy and layout preservation
  • 🌍 Multilingual - Optimized for European languages
  • 🔤 Flexible vocabulary - 151k/32k/16k token variants

Vocabulary Variants

  • 151k tokens: Full vocabulary, supports all languages
  • 32k tokens: European languages optimized (~12% faster decoding)
  • 16k tokens: European languages optimized (~12% faster decoding)

Dataset Structure

The dataset contains all original columns plus:

  • markdown: The extracted text in markdown format with LaTeX formulas
  • inference_info: JSON list tracking all OCR models applied to this dataset

Usage 

from datasets import load_dataset
import json

# Load the dataset
dataset = load_dataset("{output_dataset_id}", split="train")

# Access the markdown text
for example in dataset:
    print(example["markdown"])
    break

# View all OCR models applied to this dataset
inference_info = json.loads(dataset[0]["inference_info"])
for info in inference_info:
    print(f"Column: {info['column_name']} - Model: {info['model_id']}")

Reproduction

This dataset was generated using the uv-scripts/ocr LightOnOCR script:

uv run https://huggingface.co/datasets/uv-scripts/ocr/raw/main/lighton-ocr.py \
    stckmn/ocr-input-Directive017-1761352140 \
    <output-dataset> \
    --vocab-size 32k \
    --image-column image \
    --batch-size 32

Performance

  • Processing Speed: ~0.10 images/second
  • Benchmark Score: 76.1% overall (across diverse document types)
  • Optimization: Native resolution ViT + lightweight decoder

Generated with 🤖 UV Scripts

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