Well fluid comprising a lubricating composition - process for controlling the lubrication of a well fluid - application to high pH fluids

摘要

Described is a water-based well fluid that comprises a lubricating compound containing at least one non-ionic amphiphilic compound obtained by reaction of at least one vegetable oil as such or polymerized, on at least one aminoalcohol. Suitable vegetable oils are linseed, safflower, grapeseed, wood and sunflower oil.