Time after bit

{
  "id": "MLC-T-OAG-003846",
  "term": "Time after bit",
  "field": "Oil and gas",
  "definition": "The elapsed time between when the drill bit passes a certain depth and when a logging-while-drilling (LWD) or measurement-while-drilling (MWD) sensor passes the same depth. This time delay is influenced by drilling speed and the position of the sensor in the bottom hole assembly. It is a factor in understanding the degree of invasion by drilling fluids into the formation.",
  "subject": "Formation Evaluation",
  "url": "https://mlchart.com/terminology/oil-and-gas/time-after-bit/"
}