Wells are fascinating structures, each custom built from precision engineered components and operating in a dynamic, ever-changing environment. For the complete picture of well performance, you need a technology that reveals the finest detail, with colour and motion captured with clarity. For the complete picture you need Optis Technology.
Optis technology is EV’s flagship video platform. Designed and built by our in-house team of experts, we have applied everything we learnt from our motorsport heritage to deliver a unique and cutting edge downhole video system. We understand that wells are complicated, high-value assets whose performance and status is constantly evolving, which is why we developed Optis. By providing high frame-rate, high definition, full-color video Optis is the benchmark for downhole imaging technology, packaged in a fit for purpose modular system, ready for deployment on any mode of conveyance.
Optics and Imaging
Every element of the optical system has been meticulously designed and constructed with the highest quality components to deliver excellence in every aspect. The reflected image, illuminated by light emitted from the latest high temperature LEDs, is optimally diffracted through our unique sapphire view-port, complete with multiple specialist coatings, to increase clarity in poor fluids. From here the light enters a bespoke lens, designed from scratch to reduce radial distortion and chromatic aberration, before it finally reaches a space grade CMOS image sensor with cooling technology taken straight from the Gaia space observatory. Once the image has been converted into a digital signal, our bespoke, highly efficient MPEG H.264 processor compresses the image from around 1MB to 50KB. This high-resolution, highly compressed image is then placed onto our proprietary toolbus, ready for transmission to surface or storage within a downhole memory module.
Telemetry and Toolbus
Video data, even when highly compressed, requires a huge amount of bandwidth for transmission and storage and in itself presents a significant challenge for engineers to overcome. At EV we pushed the boundaries even further by not only developing the Optis system to meet the demands of video data, but also combing capacity for simultaneous handling of log data, from multiple sensor types, into a single, integrated platform. The unique Optis system provides modem-to-surface transmission rates of up to a staggering 375Kbps – the highest downhole duplex data rate in the world – on almost any mono-conductor or multi-conductor cable and at any length. Coupled with a smart power supply, this system also enables flawless operation in combination with high-power applications such as downhole tractors or high-powered electro-mechanical devices, enabling transmission of video and log data simultaneously with their operation.
We understand that every trip inside a well is a risk for the operator, which is why we’ve developed fit-for-purpose mechanical assemblies providing maximum strength and reliability, with no compromise to optical and imaging performance. Using advanced CAD design, FEA design and rapid prototyping techniques, we developed the Optis system to function at pressure of up to 20,000 psi and temperatures of up to 150°C from a 1 11/16” diameter tool body. Through careful design and selection of high-strength, corrosion resistant alloys, Optis technology is suitable for sour service and harsh chemical environments.
Having the best images and operating performance is one thing, but it would be completely useless without the ability to view and visualise the recorded data. EV’s Optis software provides both real-time and playback capability in a user-friendly and intuitive visual suite. Optis software features a simple user interface with powerful visualisation and navigation functions, giving the user a complete picture with full control over system settings and the ability to stream information from the well site to any location around the world via the internet – in real-time. This very same software suite enables both the stitching of sequential frames to give a full 360° perspective of the well and enables the dimensioning and quantification of the dimensions of objects captured within the high-resolution images.