SERIALLY STACKED BOREHOLE PACKER MODULE WITH LOCAL CONTROL, MONITORING, AND DATA COLLECTION

摘要

An intelligent borehole packer module is comprised of one or more inflatable elastic bladders forming a packer section with an on board controller inflating or deflating each elastic packer independently. Additional controller-actuated valves allow for selective sampling or well injection. Since the controllers can be connected in a parallel manner to the controller power and communication cable, and the same two tubes (one for packer inflation pressure, and one for injection or sampling) enter and leave all modules, a string of intelligent borehole packer modules may be assembled to any arbitrary length of independently addressable packer sections. The on board controller can also function as a data collection and alarm device by reading various analog and digital sensors located within the packers. Entire boreholes can now be simultaneously sealed with packer sections to better simulate undisturbed rock and soil without packer repositioning and subsequent borehole deterioration due to packer movement.