How Do Grasshopper Oil Drilling Rigs Work?

How Do Grasshopper Oil Drilling Rigs Work?
••• www.freefoto.com/preview/13-69-1?ffid=13-69-1

Oil Drilling Rigs

When an oil well is dug, there is normally enough pressure to bring the oil to the surface. In time, however, the release of gas and oil in the trap lowers the underground pressure. When this happens, a drilling rig is required to bring the oil to the surface. The drilling rig is a machine that has a walking beam on top, and a drill rod sticking into the ground. The main purpose of a drilling rig is to lift the drill rod on each upstroke, which will pull the oil out of the ground. There are three main types of drilling rigs: horseheads, air balances, and grasshoppers.

Horseheads

The horsehead pump is the standard design. On a horsehead pump, the pivot is in the center of the walking beam. On one side of the beam is the drill rod, and on the other side are huge steel beams called "counterweights." A crank rotates the counterweights, which pulls down the walking beam at regular intervals. The beam then pulls up on the drill rod at regular intervals, which pulls the oil out of the ground.

Air Balances

Air balances are different from horseheads because their pivots are on one end of the walking beam. They also don't use counterweights; instead, they use a compressed air cylinder. As the drill rod descends, it compresses the air in the cylinder. The pressure from the compressed air then pushes the walking beam back up, which pulls the oil out of the ground.

Grasshoppers

A grasshopper is a combination between a horsehead and an air balance. Its pivot is on the end, like an air balance, but it uses counterweights like a horsehead. The weights, however, are in the middle of the walking beam rather than at the end of it. They pull the walking beam down, which pushes the drill rod into the ground. When they let the walking beam up, the drill rod pulls oil from the ground.

Related Articles

How Oil Derrick Pumps Work
Types of Newton Scooters
How to Identify Three Types of Levers
How Do Dolphins Fight Sharks?
How Does Thrust Affect Aerodynamics?
Dolphin's Diet
What Is the Purpose of the Pendulum?
How Does Water Magnify Things?
How to Calculate Overpull on a Drill Pipe
What Are Parachutes Used for Today?
How to Calculate Pendulum Force
Advantages & Disadvantages of Rotary Screw Air Compressors
How to Calculate AMA & IMA of Simple Machines
Mechanism Description of a Manual Can Opener
How to Make a Homemade Submarine for Science Class
How Long Can a Dolphin Hold its Breath?
What Are the Two Basic Families of Simple Machines?
What Are the Dolphin's Body Parts?

Dont Go!

We Have More Great Sciencing Articles!