Lubricants improve drilling efficiency

In 2020, when drilling fluid mud was used in several high-temperature oil wells in a Russian oil field, problems such as large flow resistance and high friction coefficient of the filter cake occurred. It was inconvenient to use and the drilling cost was relatively high. Based on the on-site working conditions of four of the wells, we chose to add 1.7% high-temperature lubricant without adding new construction techniques. As a result, the lubrication coefficient reduction rate reached 90.1%, reducing the frictional resistance of the drilling tools. , reducing the flow resistance of the drilling fluid, the rheology and filter loss of the drilling fluid have also been improved to a certain extent, effectively improving the drilling efficiency.