Petroliam Nasional has been granted a patent for an optical fiber distribution measurement system that utilizes tunable lasers to analyze temperature-strain and elastic wave measurements through frequency and phase shift of Rayleigh scattering light, enhancing distributed optical fiber sensing capabilities. GlobalData’s report on Petroliam Nasional gives a 360-degree view of the company including its patenting strategy. Buy the report here.

Smarter leaders trust GlobalData

Report-cover

Data Insights Petroliam Nasional Bhd - Company Profile

Buy the Report

Data Insights

The gold standard of business intelligence.

Find out more

According to GlobalData’s company profile on Petroliam Nasional, Bioethanol production GMOs was a key innovation area identified from patents. Petroliam Nasional's grant share as of July 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.

Optical fiber distribution measurement system for temperature-strain analysis

Source: United States Patent and Trademark Office (USPTO). Credit: Petroliam Nasional Bhd

The patent US12066408B2 describes an advanced optical fiber distribution measurement system designed to obtain temperature-strain distribution and elastic wave measurement signals through the analysis of Rayleigh scattering light. The system utilizes two distinct lasers: a distributed feedback laser for temperature-strain measurements and an external resonance laser for elastic wave measurements. The system's architecture includes a CPU that processes discrete signals from a digitizer, converting the temperature-strain measurement signal into a phase error, which is then used to correct the elastic wave measurement signal. This correction occurs at regular intervals that exceed the measurement rate of the temperature-strain distribution.

Additionally, the patent outlines a signal processing method that leverages the optical fiber distribution measurement system. This method involves inputting emitted light from both lasers into a diversity device, which processes the signals through polarization and phase adjustments. The signals are then discretized and analyzed by the CPU to derive the elastic wave and temperature-strain measurement signals. The method emphasizes the importance of calculating phase errors from the temperature-strain distribution signal to enhance the accuracy of the elastic wave measurement signal. The system is capable of measuring elastic wave signals in less than one millisecond and temperature-strain signals over a longer duration, specifically 30 seconds or more, utilizing tunable wavelength coherent optical time domain reflectometry.

To know more about GlobalData’s detailed insights on Petroliam Nasional, buy the report here.

Data Insights

From

The gold standard of business intelligence.

Blending expert knowledge with cutting-edge technology, GlobalData’s unrivalled proprietary data will enable you to decode what’s happening in your market. You can make better informed decisions and gain a future-proof advantage over your competitors.

GlobalData

GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.