Explain what is dogleg?
Dog leg is the angle happened in well across deviated section and it been measured by something called DLS Dog leg saverity with a scale of 0-10) to identify the amount of that severity of angle We need to know the DLS so in case we will run casing tubing afterwards and any tools downhole this is required to adjust the tool length or to add swivels knuckles to make tool string flexible to run through to make it easier... the dogleg is the change of deviation per 100 ft.. for example you re drilling a deviated well and the angle is 30° at 3000 ft depth. when you reach 3100 ft of depth your angle is 32° so your dogleg is 2°/100 ft.
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What is mean by Mud Cap?
Mud Cap a heavier mud that is used to fill the well using the trip tank, not in all cases. To be done only of the well demands the usage. Mud cap is a type of the managed pressure drilling applications.involves drilling with no returns to the surface
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