Abstract: Apparatus and methods for sensing one or more physical parameters at a remote location while minimizing or eliminating contact between reservoir fluids and the like at the remote location and the sensor used to sense the physical parameters. In one example arrangement, the apparatus includes a tubing containing a communication cable and a sensor in communication with the cable, the sensor being located within the tubing proximate the remote location. The apparatus is configured to impose a barrier of a fluid between the sensor and the environment at the remote location. A fluid barrier reservoir containing the barrier fluid is also provided in some example arrangements.

Abstract: Apparatus for the remote measurement of physical parameters comprising sensing means (1) for sensing at least one physical parameter, instrumentation means (2) for interrogating the sensing means (1) and making a measurement, cable means (3) for communicating between the sensing means (1) and the instrumentation means (2), container means (4) for containing the sensing means (1) and the cable means (3) prior to installation of the sensing means (1), container holder means (5) for providing a support for the container means (4) at a convenient location, channel means (6) for providing a channel between the container means (4) and a measurement location where the channel is suitable for accepting the cable means (3) and the sensing means (1), and cable installation means (9) for installing the sensing means (1) and cable means (3) from inside the container means (4) into the channel means (6) and placing the sensing means (1) at the measurement location.