Thanks for your lead, Anton. Led by it to
http://www.free-lance.ru/users/GoldenHands/viewproj.php?prji... I found: Расчёт траектории скважины по результатам инклинометрии
Программа рассчитывает траекторию скважины на основе таблицы с результатами инклинометрии, с учетом заданных параметров устья. Используется в геодезии. (Drillhole trace calculation from downhole deviation survey data. The program calculates the drillhole trace based on a downhole deviation survey data spreadsheet with account for the collar coordinates. Used in geodesy. -- in my lame translation).
Since the software author (apparently, Александр Евгеньевич [GoldenHands] uses many words, there's little hope that a one-word term exists, like you said. But hope is known to be the last thing to die... And my deadline is 10 am Moscow time tomorrow --- a lot of time)))
The translation workplace 
