Devices and Methods of Producing Electrical Energy for Measure While Drilling Systems

摘要

Devices and methods for powering a Measure While Drilling (MWD) system, providing a reciprocating generator comprising a suspension and mass system, a pressure housing, a sliding armature having an axis of movement and mechanically coupled to the suspension and mass system and responding to mechanical shock and vibration energy experienced by the reciprocating generator from the environment, magnets mounted on the sliding armature, and a stator with coils positioned such that the magnets induce a voltage/current in one or more of the coils. The stator is held stationary with respect to the pressure housing while the sliding armature is coupled to the suspension and mass system. The reciprocating generator is positioned to place the sliding armature's axis of movement substantially coincident with a long axis of the MWD system such that shock/vibration energy occurring on the long axis results in motion of the sliding armature, thereby generating an electrical output.

主权项

1. An energy production device powering a Measure While Drilling (MWD) system having a long axis, comprising:
a reciprocating generator having:
a suspension and mass system;a pressure housing;a sliding armature mechanically coupled to the suspension and mass system, responding to mechanical shock and vibration energy experienced by the reciprocating generator from the environment, and having an axis of movement;a plurality of permanent magnets mounted on the sliding armature; anda stator comprising a plurality of coils positioned such that the plurality of magnets induce a voltage and current in one or more of the coils, whereby the stator is held stationary with respect to the pressure housing while the sliding armature is coupled to the suspension and mass system, the reciprocating generator being positioned to place the axis of movement of the sliding armature substantially coincident with the long axis of the MWD system such that shock and/or vibration energy occurring on the long axis results in motion of the sliding armature to thereby generate an electrical output.