That is why it is worth contacting only those companies that are engaged in drilling in a particular area. And well studied the geological features of this area. For example, drilling wells in the Taldomsky district is carried out by a group of companies Gidroservis. Here experts even made an online calculator to accurately determine the cost of drilling in your area. Depending on what layer of land over the ground reservoir and other conditions.
Extremely convenient! So far, I have never met anywhere else.