Linear, variable, differential transformer (LVDT) sensors for position feedback in downhole environments are reported to provide accurate monitoring and control of tools used in exploration, drilling and production. For example, in high-pressure, high-temperature wells, operators rely on LVDTs to verify open or closed state of interval control valves, chokes and hydraulic actuators. Their data lets users make precise remote adjustments from the surface.
For external applications, NewTek offers compact designs with strong Inconel housings for durability and corrosion resistance. Their compact diameters and lightweight cores suit tight tool clearances and limited spaces. A robust Inconel housing lets them withstand direct exposure to wellbore fluids, which can contain abrasive solids and harsh corrosive chemicals like sulfuric acid and hydrogen sulfide.
For internal hydraulic tool applications, such as control and safety valves that operate deep inside wellbores, NewTek provides M-375 miniature-vented LVDTs that withstand high pressures to 30,000 psi and temperatures to 392 °F (200 °C). Their vented design equalizes pressure, protecting sensor integrity and ensuring performance in challenging conditions. Offering superior shock and vibration resilience, they withstand intense tool movement pressure surges and fracturing dynamics without signal degradation.
NewTek also custom-engineers sensors tailored to unique geometries, environmental conditions and electrical interface requirements of downhole applications. It’s developed large-bore LVDTs for high-force hydraulic tools and ultra-compact units for tight clearances in complex completion assemblies. Using high-performance materials such as Inconel 718, sensors are built to endure aggressive environments. LVDT cores can either be housed in an Inconel case or coated, making them impervious to many drilling fluids.
NewTek Sensor Solutions