The application discloses an
electromagnetic coupling type fishable process
system and method for oil and gas water wells, which comprises a
pipe column and a downhole intelligent instrument, a plurality of
layers of working barrels are installed in the
pipe column from top to bottom, a first
wireless transmission coil and a first
control circuit are installed in each layer of working barrels, each layer of first
wireless transmission coil and first
control circuit is connected with a power supply and communication cable, a
fishing joint is fixedly installed at the end of the downhole intelligent instrument, and a second
wireless transmission coil and a second
control circuit are installed at the lower part of the
fishing joint; when layer-by-layer measurement and adjustment is performed, the downhole intelligent instrument is lowered into the working
barrel, the second
wireless transmission coil is aligned with the first
wireless transmission coil, and energy transmission and bidirectional information communication are realized through
electromagnetic coupling mode. The working
barrel and the downhole intelligent instrument are used in non-
electric contact mode, which is convenient for construction, low in operation risk, can realize layer-by-layer measurement and adjustment to meet the on-site operation demand, makes up for the deficiency of the prior art, realizes intelligent injection and production technology innovation, and reduces construction risk and operation cost.