E21B 47/00, 47/09, 47/13

 [56] المراجع:

  -YUMEI TANG ET AL: An efficient multi-boundaries determination method for geosteering complex reservoirs. 1-20 SEG TECHNICAL PROGRAM EXPANDED ABSTRACTS (2012-09-01). pages 1-5. XP055175438.
-Pedro Anguiano-Rojas ET AL: SPE 168079 1-20 Field Evaluation of LWD Resistivity Logs in Highly Deviated and Horizontal Wells in Saudi Arabia (2013-05-19). XP055175448.
-Burkay Donderici ET AL: INVERSION 1-20 PROCESSING FOR DUAL BOUNDARIES: COMPARATIVE CASE HISTORIES.SPWLA 53 rd Annual Logging Symposium. (2012-06-16). XP055175478.

 الفاحص: م. محمد عبدالرحمن الشمراني