Abstract:

The article focuses on applications of cationic polymer drilling fluid system in petroleum drilling. As a matter of fact, cationic polymer drilling fluid system is more suitable in clay-bearing rocks and salt layers than traditional drilling fluid. This drilling mud has been studied, developed and recommended when penetrating through clay-bearing rocks and salt layers. In this work, the authors analyzed reasonable components of cationic polymer mud program utilized at the Астраханск gas condensate field in Russian. Results were then discussed in order to preliminarily evaluate its advantages and disadvantages.