Metering and Proving systems:
Seven Star LLC provides total solution for the custody transfer & fiscal metering packages for oil and gas industries. Our solution in this field includes design, engineering, procurement, construction, installation and commissioning.
Our success in the field is achieved by our understanding the need and importance of the subject and by being one of the few independent measurement integrators allowing us to select the optimum cost effective solution for the application.

Gas Metering System
we have had vast experience in gas metering systems. Our professional engineering team based in Oman offers expertise in design and development to fulfill customer's stringent requirement. We also have a wide network of suppliers for high quality instruments and materials to be integrated in our facilities in Europe ,USA and Vietnam. Our gas metering systems are delivered to both local and customers world wide.
Metering Skids
We integrate metering skids with different types of flow meters like Ultrasonic, Turbine, Coriolis, Orifice, PD-meter,… with different type of Master Meters and size different types of flow meters for any application and design the best solution based on customers information on process data.
Our team of engineers in this field can chose different instrument and equipment like control valves, motorized valves, strainers, piping materials, pressure and temperature instruments, electrical instruments,... required for the metering skid package.
We do all mechanical design and calculations, P & lD, E & I design as well as Construction, installation, Commissioning and Start-up of a complete metering skid integration.
Prover Systems
Seven Star offers complete stationary proving systems for our Metering Packages, Employing unidirectional, bidirectional and compact Prover technologies. Our Prover systems incorporate industry Leading components to ensure the highest measurement excellence and assuring our customers on improved operational efficiency, reduced operating costs and accurate custody transfer measurement.
Flowmeters
Based on the Project's Process demands and our Engineering Team Experience, we can choose the best Flow Measuring Principle for your Metering Application. This includes Various Types of Turbine, Ultrasonic, Coriolis, Orifice flowmeters, both for Liquid & Gas Metering Stations. The instruments are supplied from Reputable international Vendors.
Flow Computers
As a leader in the field of Custody Transfer Metering Systems, various types of flow computers are used in our Projects to meet the customer‘s demand from their packages. Our proposed flow computers meet all gas and liquid metering requirements whether used in control room or on industrial sites, strictly implementing international industrial standards.
- Retentive flow totalizers, flow weighted averages...
- Liquid density calculations
- Master meter proving, compact and ball proving
- Batching, batch control, and associated batch reporting
- Instrument validation & diagnostics
- Audit trails at the supervisory level
