Systems for deep resistivity while drilling for proactive geosteering

A system for geosterring while drilling in a formation, comprising a computer having a processor and a memory, wherein the memory stores a program having instructions for:

• generating a plurality of formation models for the formation, wherein each of the plurality of formation models includes a set of parameters and a deep reading logging-while-drilling resistivity tool therein, wherein locations of the deep reading logging-while-drilling resistivity tool differ in the plurality of formation models;
• computing predicted tool responses for the deep reading logging-while-drilling resistivity tool in the plurality of formation models;
• acquiring resistivity measurements using the deep reading logging-while-drilling resistivity tool in the formation;
• determining an optimum formation model based on a comparison between an actual tool response and the predicted tool responses;
• and
• selecting a steering solution for the bottom hole assembly.

A method for well characterization while drilling a formation, comprising:

• generating a plurality of formation models for the formation, wherein each of the plurality of the formation model includes a set of parameters and a deep reading resistivity tool therein, wherein locations of the deep reading resistivity tool differ in the plurality of the formation models;
• computing predicted tool responses for the resistivity tool in the plurality of formation models;
• acquiring resistivity measurements using the deep reading resistivity tool in the formation;
• and
• determining a formation resistivity profile.