Control of drilling mud mineralization due to electrical conductivity
The paper deals with the problems associated with the "invasion" of formation waters into the composition of drilling fluids in the process of drilling wells in anomalous conditions. It is noted that various types of complications, particularly, debris and collapses, emersion and adsorption, create rather serious problems in the construction of wells, the elimination of which requires large investments. For example, drilling mudsfrom some fields in the Republicwhich were influenced by the formation waters was used. The electrical conductivity parameter was estimated based on the conducted researches. This indicator allows evaluating the physical-chemical properties of the drilling fluid before and after treatment by formation fluid. It should be noted that the good electrical conductivity of the drilling fluid is also important for geophysical surveys. To preserve the required properties of the drilling fluid under conditions of the formation watersrunning into wells, the treatment of the drilling fluid with salt-resistant polymeric reagents is recommended.