Standards Development

Scope

This document provides requirements for the design, design verification, functional evaluation, manufacturing, storage, and transportation of dynamic monitoring systems by electromagnetic wave for production wells in the petroleum and natural gas industry.

All the contents of this document are applicable to products that conform to the definition of production well dynamic monitoring system with electromagnetic wave, including downhole transmitters and downhole repeater demodulators. etc. 

This part of the standard includes normative annexes covering the structural composition, installation requirements, design verification, performance rating requirements, and functional evaluation of electromagnetic wave dynamic monitoring systems. In addition, this part of the document includes informative annexes providing information on testing equipment and components of the electromagnetic wave dynamic monitoring system.

This document does not cover downhole sensors, centralizers, conductors, or accumulators. These items may or may not be covered by other international standards.

Purpose

At present, the global proven oil and gas reserves continue to increase annually, yet the average recovery rate worldwide remains at only 30%-33%. Enhancing recovery efficiency is a common goal in the oil and gas industry, and the key is to acquire downhole dynamic production parameters. To address this need, the production well dynamic monitoring system with electromagnetic wave (hereinafter referred to as the EM-DMS system) has been developed.

The system is based on electromagnetic wave transmission technology and consists of a downhole signal transmitter (DST, equipped with built-in sensors), repeaters, and surface receiving apparatus (SRA). By transmitting downhole data to the surface via electromagnetic waves, the system enables long-term, real-time monitoring of downhole parameters such as pressure, temperature, and water holdup, thereby facilitating efficient reservoir development. In recent years, the application of EM-DMS systems has steadily expanded worldwide, with deployments in over 1,000 wells across more than 30 countries. Many oil and gas producers have developed mature EM-DMS products, including the Quantum™ series tools (Halliburton, USA), Tornado™ EM (Baker Hughes, USA), CQ-SRO-I (PetroChina, China), WellEagle™ EM (COSL, China), PulseWave™ EM (NOV, USA), DeepLink™ EM (Well Resolutions Technology, UK), ClarityWave™ EM (TGT Diagnostics, Russia), EnACT (Schlumberger, USA), and Demeter (GEseverses, France). These products have been widely applied in oil and gas fields worldwide, covering high-temperature, high-pressure wells in the Middle East, deepwater oil fields in the North Sea, deepwater gas fields in the South China Sea, onshore oil and gas fields in China, heavy oil fields in Kazakhstan, shale oil in the USA, deepwater pre-salt formations in West Africa, aging platforms in the UK North Sea, shallow gas fields in Southeast Asia, Arctic oil fields in Russia, and thermal recovery operations in Canadian oil sands.

In summary, given the crucial role of EM-DMS in enhancing recovery rates, intelligent completions, production dynamic monitoring, optimization of production strategies, and efficient reservoir development, global oil gas producers are increasingly launching EM-DMS products, leading to more frequent cross-border procurement and trade. The scale of domestic and international technical services for downhole dynamic monitoring provided by major global oilfield service companies is also expanding. Therefore, the establishment of an ISO standard is necessary to regulate EM-DMS system architecture and data acquisition quality, standardize production criteria, quality control benchmarks and communication protocols, and enhance the compatibility and interoperability of different products. This will promote sharing and mutual recognition of data, facilitating the implementation of international cooperation projects and improving reservoir development efficiency.