Mud motor

{
  "id": "MLC-T-OAG-002453",
  "term": "Mud motor",
  "field": "Oil and gas",
  "definition": "A downhole positive displacement motor that converts the hydraulic energy of drilling fluid into mechanical energy to rotate the drill bit. It consists of a helical rotor that turns inside a lobed, rubber-lined stator as mud is pumped through the assembly, allowing the bit to turn independently of the drill string. Mud motors are a primary component of steerable systems for directional drilling and operate at speeds from 60 to over 200 revolutions per minute.",
  "subject": "Drilling",
  "url": "https://mlchart.com/terminology/oil-and-gas/mud-motor/"
}