Custody Transfer & Flow Measurement (CTFM)

Innovation is Key
Petroleum custody transfer applications are continually evolving, and Petrogas remains at the forefront of industry changes. Our skills and technical/product expertise are continually evolving, and we prefer to help lead industry innovation instead of playing catch-up.

For example, the growing use of ultrasonic metering in pipeline applications requires the use of high flow, in-line, statistical proving techniques. Petrogas has a mobile master meter that provides the safety and flexibility needed for high-pressure gas pipeline calibration.

With both master meter and SVP technology onboard, accurate custody transfer meter proving services can be provided for high flow rates for Ultrasonic, Coriolis, Positive Displacement, and Turbine meter technologies. Not everyone can do this, but we can.

Additionally, the use of blended fuels for automotive, railcar and truck use is continually evolving and requires up-to-date standards and processes to achieve consistent metering accuracy.

Petrogas’ meter proving trailers are equipped with modern in-line Small Volume Provers and a unique assortment of hoses, cables and electronics. This lets us provide hassle- free meter proving for all rack designs and delivered products (gasoline, ethanol, ULSD, biodiesel, fuel oil, jet fuel).

Again, this is not everyone’s forte, but we’re certainly ready. Your loss prevention efforts deserve no less than the best. And that is Petrogas’ Custody Transfer & Flow Metering Systems.

Specific Certified Gas Meter Calibration Services (easy as ABC!)
Accurate measurements are vital, whether the primary purpose is custody transfer, allocation, or process control.
As Tanzania’s leading expert in flow measurement best practices and custody transfer, Petrogas has developed a line of service packages under the Master Service Agreement (MSA) range of offerings. These can be combined to offer each customer a service level tailored to meet specific needs economically and be contracted, provided à la carte, or a combination of both.

The “A” Service: Independent Audit of Gas Metering System
Petrogas “functionality and compliance” certification services include onsite visits by experienced technicians who will inspect and confirm whether your devices and
instrumentation meet performance and safety standards, usually without having to pull them out of service.
We recommend our “A” Service annually, as it is a very cost-effective way to ensure your equipment is doing what you expect it to do. It also uncovers issues the following two services can address.

The “B” Service: Mobile Prover Based Calibration & Certification
An instrument that is not correctly calibrated can affect nearly every aspect of your business, from safety to productivity to consumer satisfaction to colossal regulatory fines and penalties.
Not to mention straight profitability.
Thus, calibration should be completed at regular intervals to ensure the instrument continues to perform within the accepted limits.
Petrogas uses only the approved (and advanced) Master Meters with Portable Flow Computers. Delivering Smart Meter Verification (SMV) capabilities, Petrogas can calibrate all types of gas flowmeters ranging from 1/2″ to 12″, made by any manufacturer. We’ll certify our work, and you’ll be certain your instruments are telling you what they need to tell you, accurately.

Our B service is available upon request. It also often comes into play after our A service audit determines it’s necessary.

The “C” Service: Repair and Refurbishment
All equipment will eventually need repairs. When that happens, you can count on Petrogas to handle your needs. Most of our Maintenance Repair & Overhaul (MRO) services are performed onsite, meeting each customer’s unique needs:
 Meter disassembly, part inspections, and total cost estimate.
 Bodies chemically stripped; parts cleaned by hand.
 Reassembly, replace bearings and any other part required.
 Leak test at maximum operating pressure.
 Paint, Prove, and badge/seal (proving described below).

Parts and Additional Services
In addition to our service work, we can supply a variety of products that handle natural gas. This includes regulators, meters, valves, actuators, controllers, filters, heaters, bearings, impellers, gears, seals, sight glasses unique to each meter, and other gas handling products conforming to
manufacturer and model type specifications.

We can also handle the design and construction of Regulator, Metering, and Odorizing (RMO) stations and similar projects.