Laboratory Study on High Temperature and Heavy Weight Drilling and Completion Mud Systems

High weight drilling and completion mud systems with supreme properties are needed during drilling of producers for developing the deep reservoirs. New water -based drilling fluid system of high temperature and heavy weight is developed. It has high thermal stability, salt re-sistancy of 20% and anti-calcium of 3% and good rheo-logical characteristics and meets the requirements of drilling of deep wells and super - deep wells.