What is the primary objective of kill methods used in well control?

The primary objective of kill methods in well control is to remove formation fluid from the well bore. This action is crucial for regaining control over a well that may be experiencing a kick or influx of undesirable formation fluids. By removing the formation fluids, the pressure within the well is managed, allowing operators to stabilize the well and prevent further influx or potential blowout situations.

Kill methods often involve circulating heavy fluids or using specific techniques to ensure that the well is brought back under control. The process effectively reduces the risk of formation fluids entering the wellbore and ensures that the drilling operation can resume safely. Mastery of these methods is essential as they directly influence the well's safety and operational integrity.

In contrast, sealing the well entirely is not the primary purpose; rather, it may be a subsequent step after control is established. Drilling a new well does not relate to managing the current well's issues and increasing fluid density, while important, is more of a tactic used during the kill rather than the main objective.