Acquiring oil from the ground takes many men and procedures; a fact that is known by all successful oil companies such as Weatherby Energy. The job requires careful preparation and extensive training by the workers. Safety precautions that are mandated must be followed to the letter to avoid any catastrophes. There are four main operations performed in a drilling rig, each one is as important as the next. The drilling operations used by oil companies like Weatherby Energy are hoisting, rotating, circulating and power.
• Hoisting -The hoisting system is used to both lower and raise the pipe in and out of the ground. This system is made of the traveling block, crown block, derrick, drilling line and the drawworks. The steel tower, also known as the derrick, is used to support the drill. The pulleys that are responsible for raising and lowering the drill string are known as the crown and traveling blocks. A steel cable connects these pulleys. A large drum that is wrapped by cable is carried by the drawworks. Continuous spooling by the drilling cable is caused by the drill rotating and is responsible for the raising and lowering of the drill string. Many employees carry out the hoisting operation with an oil company like Weatherby Energy.
• Rotating – The rotating equipment’s function is to turn the drill bit. There are many parts that are needed to perform this operation such as the swivel, the Kelly, rotary table, drill pipe and drill collars. The Kelly is attached to the swivel, which is attached to the traveling block. The Kelly is either square or hexagon in shape. The Kelly then fits into a matching slot in the rotary table. As the table turns so does the Kelly that creates the rotation of the drill string and drill bit. The drilling pipe is roughly 30 feet long and 4 to 5 inches wide. The drill collars are added to the drill bit for weight. The size of the pipe can be increased as needed by the threaded connections that exist on each end. Since a drilling bits function is to create the hole, they come in many sizes and are replaced as the hole size warrants. Companies such as Weatherby Energy carry out a rotating operation each day.
• Circulating- The circulating system is designed to pump the fluids, used in the drilling operation, down the hole, out of the nozzles in the drilling bit, returning them to the surface at which time the debris is separated from the fluid. Drilling Fluid, also known as drilling mud, is mixed in tanks. This mud is pumped through the hose to the swivel, down the Kelly and into the drill pipe and so on to the nozzle, where it is released. After the mud brings the cuttings to the surface from the bottom, the cuttings are separated in a vigorous manner using a shale shaker. The circulating pumps then pick up the clean mud and send it back down the hole. There are several types of mud used during the drilling process to accommodate the different rock formations, temperature and pressure.
• Power– The power system is the back bone of the entire operation for without power done of the others would work. The power comes from more than one diesel engine. These diesel engines are used to power and transmit generators or mechanical drivers, which use pulleys and belts as a method to transmit power to the components from the engine.
Companies such as Weatherby Energy use each of these drilling operation systems when a drilling site is established. Weatherby Energy utilizes the newest technology in order to better serve its customers.