All of Visuray’s tools share a set of common technological elements called the Downhole X-Ray Platform. The platform currently supports these services:
The world’s first downhole X-ray tool for well diagnostics, with proven success in Northern Europe, the Middle East, and the United States.
The second-generation downhole X-ray diagnostic tool for slimmer, hotter wells while boasting a 50% wider field of view. A Visuray Positioning Module ensures precise tool placement, and specs include resistance to sour wells.
A revolutionary cement evaluation tool, currently in development, that radiates X-rays outward to directly evaluate cement integrity even in double casing strings. A step change for well safety not only for new wells, but also for decommissioning old wells.
HOW THE PLATFORM WORKS
Conventional X-ray imaging – for example in security or medical applications – involve placing the object to be scanned between the X-ray source and detector. This physical configuration isn’t possible in an oil well. Therefore Visuray scientists developed an alternative solution called “fluid-based surface imaging” that uses an X-ray source and detectors positioned on the same side of the target object.
The technique relies on X-ray scattering within the fluid separating the target object from the X-ray source. Fluids scatter X-rays strongly, so an increase in scattered and detected X-rays means more fluid present in the field of view and correspondingly more distance to the target object. Visuray uses this effect with high-pixel resolution to reconstruct the target object in 2D and 3D with millimetric accuracy.
Wherever the well and whatever its condition, the Downhole X-Ray Platform’s family of services will see what’s happening and deliver quality images 100% of the time.
Five distinct technological developments and innovations lie at the heart of the Visuray Downhole X-Ray Platform:
- First is a range of custom-designed photon-counting X-ray detectors, which include dense, pixelated arrays derived from technology developed in the medical industry, combined with customized compact photomultiplier/scintillator detectors that are used in the oil industry.
- Second is a range of powerful X-ray sources that have been specially miniaturized and designed for high output.
- Third is a compact, ultra-high voltage power supply enabling the source to emit high-energy X-rays.
- Fourth, is a family of heat exchangers and downhole coolers used to control the temperature of the sources and detectors.
- Fifth is patented data analysis and processing techniques that convert the acquired digital data into 2D and 3D images.