Design and Maintenance of Drilling Fluid in Northeast Sichuan Block of China Petrochemical Exploration South Branch

The ilmenite powder for design mentioned above is all barite, and the ilmenite slurry is not used at all, so the cost is high. To protect the reservoir, calcium carbonate can be used to increase the pollution depth of barite, which can be completed by perforation. There is no such responsibility problem as you said.