An assembly for sidetracked drilling in a wall of a borehole previously drilled or cored in a formation includes a guide element and an expansible device fixed to the front end of the guide element operable to be selectively expanded by an actuation means. The method includes using a sensing assembly having first and second electrodes extending along a side of the reservoir, wherein the first and second electrodes combine to form a plurality of capacitors each having a unique capacitance. When a new frequency of operation is desired, the voltage control block measures delay performance of the IC, and sets the supply voltage to a value specified in a corresponding entry in a table. If the comparison shows aberrations between the historical trends and the current trend within the predefined period time window, then the network operator will be informed to take actions. A vacuum source controllably connects to the apertures and the vacuum ports. The characteristic of the motion metric is extracted and used to detect environment change.