Full text loading...
-
Problems of casing wells in potassium-magnesium salts of the Dnieper-Donets Rift and ways of their solution
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 15th International Conference Monitoring of Geological Processes and Ecological Condition of the Environment, Nov 2021, Volume 2021, p.1 - 5
Abstract
Summary
It has been established that the main cause of damage to casing strings in the fields of the Dnieper-Donets Rift is the presence of potassium-magnesium salts in the sections of wells, which are prone to plastic flow. Measures have been developed to improve the reliability of well casing in these conditions, which provide for the selection of the optimal density of the drilling fluid, control of the dynamics of the flow of salts and minimization of the cavity size before lowering the casing, the choice of the method for casing the well, creating conditions for increasing the resistance of the casing to external load, etc.
© EAGE Publications BV