Abstract
The reasons for the deterioration of reservoir properties of productive layers during their opening are considered. Special attention is paid to the study of geological properties of emulsions of the drilling mud filtrate – oil type. Productive deposits on the example of the fields of Southwestern Turkmenistan are characterized by a complex and ambiguous composition of rocks, waters and drilling mud and oil. Each of the components, interacting with the filtrate of the drilling mud, determines the deterioration of reservoir properties and a decrease in the flow rates of hydrocarbon fluids. Oilbased solutions were used to open productive horizons while maintaining natural permeability, as well as for drilling in particularly unstable clay saline deposits. In such solutions, the dispersion medium is represented by diesel fuel, and the dispersed phase is finely ground oxidized bitumen. The results obtained make it possible to clarify the mechanism of reducing the reservoir properties of productive formations due to the penetration of filtrate of drilling fluids, as well as to formulate new requirements for technologies, composition and properties of drilling fluids for opening productive formations.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
