Afrin-containing drilling mud when drilling a well
Difficulties in the process, unique methods of solving, features:
The Maikop complicated interval, prone to packing, sticking, tool jams and rock slides, was penetrated with mineralized gypsum-lime highly inhibited drilling mud, containing three inhibiting cations: K', Ca', A1(OH)2' in the system in seawater.
Drilling Fluid Absorption in the Productive Horizon with ANPD:
At the previous well of the cluster site, under the conditions of catastrophic absorption and autonomous object, the underbalanced bottom hole was allowed. It was not possible to reach the design bottomhole. During construction of the well in the productive horizon, our specialists used Afrin-containing drilling mud, due to which the well was completed drilling and successful development.