Dual-transmitter with short shields for transient MWD resistivity measurements

A system for evaluating an earth formation intersected by a borehole, the system comprising:

• a bottomhole assembly (BHA) configured for conveyance in a borehole, the BHA including:
• i) a drill bit configured to drill the borehole by disintegrating the earth formation during rotation, and
• ii) a conducting tubular having a plurality of transmitters and a receiver non-collocated with the plurality of transmitters;
• wherein the BHA is configured to:
• induce a first current in the earth formation using a first transmitter of the plurality of transmitters;
• measure with the receiver a first time-dependent transient electromagnetic (TEM) signal induced by the formation responsive to the first current;
• induce a second current in the earth formation using a second transmitter of the plurality of transmitters;
• measure with the receiver a second TEM signal induced by the formation responsive to the second current;
• and
• estimate a value of a resistivity property of the earth formation with at least one processor using a bucked signal derived from the first time-dependent TEM signal and the second time-dependent TEM signal.