Use of Drag charts for hole cleaning - WellPlan
Softwares are used to produce Drag charts on which is shown the measured and predicted weights vs. depth. The purpose is to provide the crew with the expected torque and drag during the drilling of each successive section of the well. This chart enables the driller to see at a glance what the torque and drag should be at a given depth. By comparing with the actual, problems can be identified early.
1. Data requirement
Every 90 ft Tripping out, tripping in, rotating off bottom weights and torque values . . .