well in

well in

adj
informal (often foll by: with) on good terms or favourably placed (with): the foreman was well in with the management.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in classic literature ?
But there may be such a thing as a very dark well in the Horner Country, which is a black spot on the face of the earth."
The AKK18 well will now be cased and prepared for production testing later in the year in conjunction with the AKK17 well in order to minimise costs.