FIELD: oil and gas industry.
SUBSTANCE: deep part of the system includes electromagnetic oscillator made in the form of dipole installed above the bit, which provides electromagnetic communication between string of drilled well (DW) and at least one production string (PS) of previously drilled wells (PDW). Ground part includes complex resistance converter (CRC) of the section of circuit formed with drill column and mine rock of near-dipole area to voltage and n CRC of the circuit formed with PS and section of mine rock enclosed between bit of DW and of PS of PDW to voltage, where n - number of PDW. Outputs of the above n CRC to voltage are connected to data inputs of commutator the output of which and output of CRC of the section of circuit formed with drill column and mine rock of near-dipole area to voltage are connected to input of adder connected to the filter connected through reference amplifier to circuit of comparison with reference voltage. Output of the latter is connected to input of process controller the data output of which is connected to memory unit input, and control outputs - to control input of commutator and to inputs of alarm and control modules of drill pump.
EFFECT: improving orientation control reliability of shafts relative to each other and providing control of approximation or moving away of drilled well relative to unlimited number of columns of previously drilled wells with identification of number of that well.
2 dwg
Authors
Dates
2010-11-27—Published
2009-06-18—Filed