IES - Integrated Engineering Services
IESIntegrated Engineering
Custody Transfer Applications

Custody Transfer Applications

Measurement Accuracy for High-Stakes Fiscal Transactions

We design, commission, and maintain custody transfer metering systems that protect your commercial interests with measurement accuracy that stands up to audit and regulatory scrutiny. Our solutions ensure every barrel, cubic meter, and kilogram is accurately measured and documented.

±0.15%
Liquid Accuracy
±0.5%
Gas Accuracy
100+
Metering Stations
25+
Years Experience

Why Choose Our Custody Transfer

Key benefits that set us apart

Fiscal Accuracy

Metering systems designed to API/AGA standards ensuring every transaction is accurately measured

Audit Compliance

Full documentation trail with proving records that satisfy regulatory and commercial audits

Revenue Protection

Minimize measurement uncertainty to protect your commercial interests in high-value transactions

24/7 Support

Round-the-clock technical support for custody transfer systems to minimize measurement disputes

Our Process

How we deliver Custody Transfer

1

Requirements Analysis

Assess flow rates, product properties, accuracy requirements, and regulatory obligations for your application.

2

System Design

Engineer metering package including meter selection, flow conditioning, sampling, and proving provisions per API/AGA.

3

Equipment Procurement

Source meters, provers, and ancillary equipment from authorized suppliers with factory calibration certificates.

4

Installation & Commissioning

Install per API/AGA standards, configure flow computers, and commission with witnessed proving runs.

5

Validation & Uncertainty

Perform uncertainty analysis, document meter factors, and establish proving frequency schedule.

6

Training & Handover

Train operations staff on daily checks, proving procedures, and troubleshooting protocols.

Service Scope

What we cover with Custody Transfer

  • Liquid hydrocarbon metering (crude oil, products, LPG)
  • Natural gas metering (ultrasonic, turbine, Coriolis)
  • LACT unit design and commissioning
  • Prover system installation and calibration
  • Flow computer programming and validation
  • Meter proving and verification
  • Sampling system design and installation
  • Metering station audits and optimization
  • Tank gauging and inventory management
  • Allocation metering systems

Standards & Compliance

International and Pakistani standards we follow

API MPMS Chapter 4, 5, 6, 7 for liquid metering
AGA Reports 3, 7, 9, 11 for gas measurement
ISO 5167 for differential pressure devices
GPA 2172 for LPG measurement
OIML R117 for dynamic measuring systems
OGDCL/SSGC/SNGPL specifications for Pakistan
ISO 6976 for natural gas properties
API 21.1 for electronic gas measurement

Instruments & Systems Covered

Equipment and platforms we service

Coriolis mass flow meters (Emerson, Endress+Hauser)
Ultrasonic flow meters (Daniel, Sick, Krohne)
Turbine meters (Smith, Daniel, Faure Herman)
Positive displacement meters (Smith, Brooks)
Flow computers (Emerson ROC, ABB Totalflow, Omni)
Provers (bidirectional, compact, master meters)
Sampling systems (automatic, composite, spot)
Densitometers and chromatographs
Tank gauging systems (radar, servo)
Temperature and pressure transmitters

Industries Served

Sectors where we deliver Custody Transfer

Service Capabilities

Technologies, methods, and expertise we bring

Metering Technology

Coriolis MeterUltrasonic MeterTurbine MeterPD MeterFlow ComputerProver SystemLACT Unit

Applications

Fiscal MeteringAllocation MeteringTank GaugingLoading/UnloadingPipeline TransferTerminal Automation

Standards

API MPMSAGA ReportsISO 5167GPA 2172OIML R117Uncertainty Analysis

Products

Crude Oil MeteringLPG MeteringNatural Gas MeteringProduct MeteringCondensate Metering

Documentation Delivered

What you receive upon service completion

Metering system design basis document
Equipment datasheets and factory certificates
Installation and commissioning reports
Proving run documentation and meter factors
Uncertainty analysis reports (GUM compliant)
Flow computer configuration backup
Operations and maintenance manuals
Audit trail and validation records

Related Solutions

Products and technology that complement this service

Frequently Asked Questions

Common questions about Custody Transfer

Ready to Schedule Custody Transfer?

Our service team is ready to assist you