Workshop on Flow & Level Custody Measurement

Program Overview:

This course is designed to acquaint users with the problems and solutions for high accuracy transfer of liquid and gas petroleum products from supplier to customer. These needs have been brought about by major changes in manufacturing processes and because of several dramatic circumstantial changes such as: the increase in the cost of fuel and raw materials; the need to minimize pollution; and the increasing pressures being brought to bear to adhere to the requirements for health and safety.

For Whom:

This workshop is specifically tailored for any personnel who are, or will be, responsible for designing, selecting, sizing, specifying, installing, testing, operating, and maintaining instrumentation related to the field of custody level and flow transfer measurement. This could include facilities, process, chemical, electrical, instrumentation, maintenance, and mechanical engineers and technicians. Technicians involved in design or operation of custody transfer systems will also benefit from this program.

Learning Objectives:

At the end of the program, participants will be able to:

• recall the basics of fluid mechanics;
• identify the fundamental problems related to uncertainty;
• compare the different methods of measuring flow in the oil and gas industries;
• describe the various methods of level measurement;
• compare the different methods used to derive strapping tables;
• evaluate the different custody transfer standards in use today;
• contrast the methods used in flow calibration;
• identify the different types of prover systems;
• explain the methodology used in truck custody transfer;
• examine the challenges regarding pipelines;
• describe the basics of leak detection;
• analyze the methodology for monitoring and controlling production losses; and
• evaluate and compare the problems and solutions associated with the measurement of NGL, LPG, and LNG.

Course Outline:

Day 1: Custody Transfer & Flow Measurement: Overview

• Introduction to custody transfer and Best Practice
• Flow measuring devices – introduction, types, selection, Velocity and Density Measurements
• Allocation for distributing revenue and expenses
• Fiscal for payment to regulatory authorities
• Fluid and Gas Laws – Governing equations
• Measurement terminology – Accuracy, Precision, Repeatability, Reliability

Day 2: Flow Measuring Devices

• Flow measuring devices, Specification and selection for Custody Transfer
• intrusive/ non-intrusive measurement, Flow Modification
• Volumetric and Mass Measurement
• Differential Pressure Measurement, Measurement Corrections
• Positive Displacement Measurement
• Velocity Measurement
• Inferential, Propeller, Turbine,
• Magnetic
• Ultrasonic
• Oscillatory
• Mass Measurement, Coriolis

Day 3: Level Measuring Devices

• Introduction, Types
• Top-Entry Measurement, Contact, Non-Contact Measurement
• Displacement Measurement
• Buoyancy Measurement
• Magnetic, Ultrasonic, Radar, Conductive, Capacitance, Bubbles, Vibrating, Nuclear

Day 4: Level Measurement & Other Measurement Systems

• Level measurement
• Hydrostatic pressure
• Ultrasonic measurement
• Radar measurement
• Flow calibration
• Terminal custody transfer
• Tank management systems
• Group Presentation/Case Studies

Day 5: Calibration, Proving and Custody Transfer

 Management

• Calibration and Proving, Different method of proving

flow measuring devices, Master Meter Systems,

API Standards

• Types of proving facilities,

Leased and portable proving facilities

• Problems with the Prover, Impact of faulty

proving methods

• LACT units – introduction and overview, Equipment,

Truck custody transfer, OIML recommendation

• API gravity- definition and importance in

custody transfer

• Inventory Management, Tank Gauging and

Calibration, Gravimetric Inventory Control

• Pipeline considerations
• Group Presentation/Case Studies

Training Methodology

Lectures, discussions, exercises, and case studies will be used to reinforce these teaching/learning methods.