What is oil drilling?

Question

please answer.

Answer 1

I think its when people drill into the ground to find oil wells. They insert two pipes(one to pump in water and the other to pump the oil out, since water and oil don;t get along) and pump oil out, which will then be used for vehicles.

p.s.

"I think so"

Answer 2

The well is created by drilling a hole 5 to 36 inches (127.0 mm to 914.4 mm) diameter into the earth with a drilling rig which rotates a drill string with a bit attached.After the hole is drilled, sections of steel tubing known as casing and is slightly smaller than the borehole to provide a annular for cementing is placed in the hole. The casing provides structural integrity to the newly drilled wellbore in addition to isolating potentially dangerous high pressure zones from each other and from the surface.

With these zones safely isolated and the formation protected by the casing, the well can be drilled deeper (into potentially more-unstable and violent formations) with a smaller bit, and also cased with a smaller size casing. Modern wells often have 2-5 sets of subsequently smaller hole sizes drilled inside one another, each cemented with casing.

To drill the well,

The drill bit, aided by the weight of drill string and drill collars above it, breaks up the earth.

Drilling fluid (aka "mud") is pumped down the inside of the drill pipe and exits at the drill bit and aids to break up the rock, keeping pressure on top of the bit, as well as cleaning, cooling and lubricating the bit.

The generated rock "cuttings" are swept up by the drilling fluid as it circulates back to surface outside the drill pipe. The fluid then goes through "shakers" which strain the cuttings from the good fluid which is returned to the bit. Watching for abnormalities in the returning cuttings and volume of returning fluid are imperative to catch "kicks" (when the pressure below the bit is more than that above, causing gas and mud to come up uncontrollably) early.

The pipe or drill string to which the bit is attached is gradually lengthened as the well gets deeper by s******g in several 30-foot (10 m) joints of pipe at surface. Usually joints are combined into 3 joints equaling 1 stand. Some smaller rigs only use 2 joints and newer rigs can handle stands of 4 joints.

This process is all facilitated by a drilling rig which contains all necessary equipment to circulate the drilling fluid, hoist and turn the pipe, control downhole pressures, remove cuttings from the drilling fluid, and generate onsite power for these operations

Answer 3

Drill holes in ground to get at oil buried deep underground. Oil has many uses for cars and houses