Power generation downhole by use of vibration

摘要

To operate downhole devices power is generated by the conversion of vibrational energy to electrical energy. Various methods of achieving this are disclosed but one involves the relative movement between a winding / coil 602 and a magnetic material 610. A flow diverter (fig 3-11) may be used to alter fluid flow and create turbulence thereby increasing vibration. Another embodiment involves dispersing wireless tags (19A, 19B) in the well to measure well properties and using vibrational energy transferred to the tags to activate them.