Method for measuring formation conductivity distribution based on transient electromagnetic eddy current field

A method for measuring formation conductivity distribution based on transient electromagnetic eddy current field, comprising:

• arranging a transmitter coil and a first array receiver coil to a target stratum of a transmitter well;
• arranging a second array receiver coil to a target stratum of a receiver well;
• periodically turning on and turning off the transmitter coil;
• moving the transmitter coil and the first array receiver coil for a first preset distance;
• acquiring a first eddy current signal of the first array receiver coil and a second eddy current signal of the second array receiver coil in a moving process of the first preset distance;
• moving the second array receiver coil for a second preset distance;
• jumping to the step of moving the transmitter coil and the first array receiver coil for the first preset distance till the measurement of the whole well segments is completed;
• and
• obtaining formation conductivity distribution according to the first eddy current signal and the second eddy current signal.