Custody Transfer & Metrology for Oil & Gas — Pro meter
Legal Shield • Engineering • Accredited Labs
Engineering and Metrological Services by Pro meter
40+ years of expertise. Hundreds of completed projects. We ensure accuracy, legal compliance, and trust in every measurement.
Our Focus Area. Our advantage lies in
1. Design of Measurement Systems and Process Automation (SCADA)
We develop and implement industrial measurement and automation systems — from technical specifications to commissioning. Pro meter and SIA Olimps have successfully completed dozens of projects: from oil and gas custody transfer units at export terminals to automated control systems for tank farms (including the ammonia storage control system at VentAmonjaks).
We can join at any stage: from feasibility study to final system adjustment. Our solutions include full metrological support, certification preparation, and interaction with regulatory bodies. We work according to API, ISO, GOST, and OIML standards.
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Technical and economic justification;
SCADA and DCS integration;
Commissioning and support.
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2. Support for Equipment Suppliers and Dealers
We assist equipment suppliers and dealers in the markets of Latvia and Eastern Europe.
Pro meter supports product localization, documentation preparation, metrological adaptation, and integration of solutions into customer infrastructure.
✓ We assess the technical condition of the equipment;
✓ We conduct expert analysis of projects and risks;
✓ We adapt the project to meet tender and technical specifications;
✓ We provide legal and metrological support for market entry;
✓ We help start-ups and investment projects move to real-world implementation.
We ensure your solutions are recognized, compliant with EU standards, and successfully implemented at the sites.
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3. Work with Laboratories and Accreditation
We cooperate with laboratories in Latvia, the Baltics, and the EU, helping them expand their scope of accreditation.
Our experts provide accreditation for new types of measurements: temperature, pressure, density, flow rate, and integrated measurement systems.
We develop and adapt methods for calibration, verification, and measurement — according to the requirements of the specific client or project. We help prepare protocols and working documentation in accordance with OIML, ISO, and GOST standards.
We design and implement verification stands; We provide documentation, Excel protocols, and Word templates; We train personnel, assist with accreditation and verification.
Thanks to our services, your laboratory will improve its ranking and strengthen its position in the market.
4. Metrological Outsourcing for Enterprises
In recent years, new enterprises have been actively developing in the Baltics — from green energy to high-tech assembly plants.
However, one recurring issue is the lack of qualified metrological support.
We offer the implementation of the metrological function at the enterprise.
This is especially relevant for new plants where there is no metrological service yet, but traceability and measurement reliability are already mandatory.
What we offer: Development of a register of measuring instruments (based on Excel or cloud tools); Creation and control of verification schedules; Support during installation, setup, and commissioning; Adaptation of technical documentation to verification and audit requirements; Metrological support for “green technologies” — solar, wind, and thermal installations.
Our approach
is based on principles proven in the oil & gas sector and easily adapted to new challenges.
Result — risk minimization, regulatory compliance, and full readiness for audits and certification.
5. Legal and Tender Support
We provide a full range of legal and organizational services in the field of measurement.
Pro meter is your partner in preparing tender applications, reviewing existing contracts, and supporting arbitration processes.
Contract audits from a metrological standpoint; Recommendations for reducing risks and avoiding penalties; Support in national and international tenders (including oil and gas, trade platforms, and infrastructure).
We work with both private companies and state institutions.
Our experience — dozens of successful tenders and protected contracts.
6. Metrology. Method Development and Protocols
We develop unique measurement methods, calculation procedures, and metrological analyses.
Pro meter offers not just standard GOST or OIML approaches — but engineering-level methodology for project-specific and non-standard processes, especially for dynamically changing measurement conditions.
Uncertainty and traceability analysis; Accuracy assessment of measurement chains; Preparation of Excel protocols and supporting calculations; Drafting documentation for accreditation and certification.
We use direct and indirect measurement techniques.
Examples of our methods are approved by national institutes and recognized in the EU.
You’ll receive a reliable measurement protocol you can trust.
7. Documentation Development and Project Support
Pro meter prepares a full package of documentation — from technical specifications and customer requirements to commissioning protocols.
We work quickly and precisely, in compliance with EU and CIS standards.
Technical specifications and calculations; Metrological justifications and verification sheets; Passports and operational documentation; Certificates, declarations, and protocol templates.
We integrate our solutions at all stages, ensuring the metrological integrity of documentation — ready for inspection, certification, and oversight.
8. Technical Audits and Independent Expertise
Independent technical expertise is a critical step for commissioning or protecting your project.
We conduct internal audits and risk assessments, provide on-site technical reports, and support arbitration and legal disputes.
Compliance checks of accounting units; Technical analysis of metering systems and risks; Balance sheet audits and reconciliation of discrepancies; Expert support in disputes over measurements and balances.
Our conclusions serve as technical evidence for litigation, arbitration, and inspection of critical facilities.
How we work — simple, professional, no red tape
Found something useful above? Don’t wait. Send us a short request — we’ll get back, run a quick checklist, sign a lean contract, and deliver.
Send a request
Tell us the task: site/equipment, timing, expected result. You can attach photos/files.
Fast checklist
We clarify a few simple points (tech data, regulatory limits, access) and confirm the plan.
Contract → execution
We sign a short-form agreement and start. You get progress updates, deliverables and recommendations.
- Custody-transfer engineering — design, FAT/SAT, commissioning
- Metrology outsourcing — end-to-end support
- Legal Shield — tender & contract due diligence
- Calibration of capacity measures — 500 / 1000 / 5000 L
- OIML 17th Conference & 60th CIML — 12–15 Oct 2025
- EURAMET Partnership 2025 — Stage 2 open (deadline 29 Sep)
- World Metrology Day 2025 — “Measurements for all times, for all people”
- BIPM/IOP: Metrologia to go fully Open Access in 2026
Standards & Legal Shield
We design, audit and support measurement systems in line with international and EU requirements. Metrological traceability is ensured via accredited labs and national/EURAMET chains.
- Measuring Instruments Directive (MID) 2014/32/EU
- OIML R117 (measuring systems for liquids other than water)
- WELMEC guides (implementation of MID)
- ISO/IEC 17025 (competence of testing & calibration labs)
- API MPMS Ch. 4 (meter proving)
- API MPMS Ch. 5 (metering systems)
- API MPMS Ch. 10 & 12 (tank gauging; petroleum calculations)
- API MPMS Ch. 21 (EFM systems)
- ISO 5167 (DP flow measurement), ISO 10790 (Coriolis)
- ATEX 2014/34/EU for hazardous areas
- OIML D31 (software for legal metrology)
- IEC/EN 60079 (equipment in explosive atmospheres)
- SI units (BIPM), CIPM MRA chain
- EURAMET calibration guidelines
- ISO 9001 (QMS) in projects & suppliers