| 摘要 |
FIELD: oil and gas well drilling. SUBSTANCE: iron-ore concentrate used as weighing component for muds and filler for secondary opening and hydraulic mining suspension allows high-quality drilling bottom hole clearing from drilled out rock, higher sedimentation stability of solutions under elevated temperature and pressure conditions, complete clearing of critical zone of oil beds from remains of weighing components, clay and drilled out rock. EFFECT: improved quality of muds by replacing barite used as weighing component for iron-ore concentrate having higher technological effectiveness. |
