What is the mousehole on a rig?
A mousehole is a shallow bore hole under the rig floor, usually lined with pipe, in which joints of drill pipe are temporarily placed. This is either done by the portable rig that drills the conductor hole or can be done by the drilling rig after rigging-up.
What is the use of a mousehole?
The main function of the mousehole is to hold pipe during stand building or breakdown.
What is Drawworks drilling?
A drawworks is the primary hoisting machinery component of a rotary drilling rig. Its main function is to provide a means of raising and lowering the traveling block. The segment of drill line from the drawworks to the crown block is called the “fast line”.
What is the difference between a mousehole and a rathole?
The difference between the mouse hole and rat hole is as follows: The mouse hole is an opening in the rig floor that allows for the fast connection of a single joint of drill pipe to the drill string during drilling. The rat hole is an opening in the rig floor where the kelly can be stored. …
Do mice really make holes in the wall?
Mice are capable of fitting through extremely small openings in floors, walls and foundations. After they enter homes, they can be extremely difficult to get rid of. Mice living within walls rarely leave their nests during daylight. Holes are also visible in walls, floors, ceilings and foundations.
What does the word Mousehole mean?
1a : a mouse’s burrow. b : a small hole (as in a baseboard) gnawed by a mouse. 2a : a small opening or passageway. b : a small space used for storage or for living quarters : cubby.
How do you know if a rat is in your room?
Tell-Tale Signs of Rats in the Walls or Attics
- Squeaking or scurrying sounds in the walls.
- Running or soft footstep sounds primarily at night.
- Piles of droppings in an area behind a stove, in the basement or attic, or on the ground.
- Food packages, containers or wooden spoons that have been gnawed on.
What is Kelly in drilling rig?
A kelly drive is a type of well drilling device on an oil or gas drilling rig that employs a section of pipe with a polygonal (three-, four-, six-, or eight-sided) or splined outer surface, which passes through the matching polygonal or splined kelly (mating) bushing and rotary table.
What is Travelling block Derrick?
1. n. [Drilling] The set of sheaves that move up and down in the derrick. The wire rope threaded through them is threaded (or “reeved”) back to the stationary crown blocks located on the top of the derrick.
How deep is a mouse hole?
MOUSE HOLE The tunnels are generally only a few centimetres below ground, with entrance holes about 3cm in diameter. Mouse holes are often camouflaged or blocked with debris, such as small stones, clods of earth or twigs.
What does strategically mean?
in a way that relates to what an organization, country, etc. wants to achieve and how it plans actions and uses resources to do this: strategically important/placed/positioned The company said it was interested in raising its stakes in strategically important areas.