Custom Resistor Dividers from Exxelia Ohmcraft Help Enable Innovative Downhole X-ray Inspections

ROCHESTER, N.Y., September 22, 2020 — In order to safely and successfully abandon and cap off oil wells, downhole X-ray technology is used to check the wells for any structural damage or radioactive materials. Exxelia Ohmcraft—a leader in thick-film, high-voltage, high-precision resistor design and ...


...and manufacturing—was recently tapped to develop a custom, high-voltage resistor divider for this application

For more than 15 years, Exxelia Ohmcraft has provided custom resistors for petrotechnical analysis equipment used in downhole drilling. That’s why manufacturers of the downhole X-ray inspection platform turned to Ohmcraft to help develop a custom solution for use in this new and innovative diagnostic tool, which has already generated significant demand in the market.

While cameras are able to capture images of a well’s exterior, downhole drilling X-ray platforms enable oil companies to clearly examine the inside of the well despite harsh conditions, including exposure to high temperatures, high pressures, and fluids. The X-ray inspection helps to ensure the well’s integrity and mitigate any risks.

“The process of taking X-rays deep down inside of a well involves very powerful and specialized equipment, for which the design required reliable high-voltage resistor dividers in a small form factor—a combination that manufacturers struggled to find,” said Eric Van Wormer, Vice President of Exxelia Ohmcraft. “Given our experience in downhole drilling applications and the development of custom resistor solutions, we were able to work closely with the engineers to meets their needs and help them bring this technology to life for their customers.”

Exxelia Ohmcraft’s technology utilizes the proprietary Micropen electronic printing system to “print” precise, narrow, serpentine lines with resistive ink on a ceramic substrate, producing higher performance resistors over a wider range of values on a smaller surface area than is possible with conventional film resistor technology.

Published on 23 Sep 2020 by Rebecca Charles

Exxelia at SIAE 2023 (Paris Air Show)

As an expert in high reliability products in a wide range of fields, Exxelia will be exhibiting its products this year.   On its "Embedded Products" cluster, bringing together components that can be mounted on a satellite or aircraft, Exxelia will be presenting two innovations that are particularly well suited to the challenges of the aviation of the future and the objectives of decarbonisation of the air. Its latest film capacitor innovation called MML™ (named after its "Miniature Micro-Layer" dielectric) shows an energy density up to 4 times higher than other film dielectrics. MML® technology makes power capacitors smaller, lighter and compatible with higher temperatures, and is therefore particularly suitable for DC-Link, decoupling & charge-discharge applications.   Alongside MML™ components, Exxelia will also be exhibiting the latest innovations in magnetic components, saving up to 40% in weight and 20% in volume while dissipating more power, some of which have been designed for eVTOL applications, as well as the CCM & Dual Active Bridge multi-output transformers.   Come and discover the latest innovations from Exxelia at our booth during the event. We have a range of high-quality products (Capacitors, Filters, Magnetics, Materials & Tuning Components, Position Sensors, Ohmcraft Resistors, Slip Rings & Rotary Joints) designed to meet the needs of your industry. We can't wait to show you how our solutions can improve your projects and increase your efficiency.   Don't miss the opportunity to meet our team of experts and find out how we can help you achieve your goals. Join us at our booth for an enlightening experience.              

Exxelia unveils two brand new High Temperature Film Capacitors series operating up to 200°C

Exxelia unveils two brand new High Temperature Film Capacitors series operating up to 200°C June 30th 2020 - Paris, France - Exxelia, an established designer and manufacturer of complex passive components, resistors & sub-systems dedicated to harsh environments, launches its new 253P & 560P product series providing unmatched performances at high temperature.   253P series, the 200°C Film capacitor series with unmatched stability The PTFE 253P series is the most stable 200°C Film capacitor on the market with its unparalleled stability of <2,5% with capacitance from 0.22μF to 1μF under 250VDC to 800VDC. It offers the lowest loss characteristic (Tẟ) of all film technologies less than 0,1% at extreme temperatures (200°C) with excellent life performance in operations. The series offers great resistance to vibrations, shocks and to over voltage making it ideal for Oil & Gas applications as well as Defense and Civil Aviation. SPECIFICATIONS: Voltages from 250VDC to 800VDC Capacitance from 0.22μF to 1μF Standard Tolerance ±10%, ±5%* Operating Temperature -55°C to +200°C  560P Film Capacitor series, is a High Temperature Polymer operating up to 180°C Exxelia’s 560P product series combines electrical performance between BOPP & PET while exhibiting a higher operating temperature up to 180°C and longer lifetime, it is the perfect cost-effective solution for high reliability and performance in severe environments. With absolutely no derating up to 150°C, its very stable TCC <2,5% and its great resistance to vibrations, shocks and over voltage, the series supplant high temperature ceramics and tantalums being an ideal choice for many capacitor applications in harsh environments i.e. DC Link, AC Filtering, ....   SPECIFICATIONS: Voltages from 320VDC to 800VDC Capacitance value from 0.022μF to 10μF Standard Tolerance ±10%, ±5%* Temperature ranges from -55°C to +180°C   Both series are available with a high degree of customization (* tighter tolerances available upon request). Representative samples are readily available for evaluation. For more information contact sales.usa@exxelia.com or visit www.exxelia.com