Circulatory System & Hoisting System

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  • Circulatory System & Hoisting System

 

Eight main parts of drilling include crown block, rotary hook, traveling Block, oil derrick, mud pump, drilling swivel, winch and turntable.

Eight systems of drilling operation refer to hoisting system, rotary system, drilling fluid circulating system, drive system, operating system, power drive system, rig substructure, drill auxiliary equipment system.

Circulatory system includes the drilling pump, the ground manifold, mud tank, mud purification equipment, such as ground manifold including high pressure manifold, riser, hose. Mud purification equipment includes vibration sieve, desander, desilter, centrifuges, etc. Drilling mud from the mud pump tank inhalation, after drilling pump pressurized mud, through high pressure manifold, riser, hose, into the faucet, through hollow drill down to the bottom, from the bit water way matching, the circular space between the wellbore and the drill cuttings to carry to return to the ground, from the bottom of mud by various mud purification equipment, remove solid content and then repeat use.

The function of hoisting system is for lifting and lowering oilfield drilling rig, case and controlled bit weight as well as delivering drilling rig. Drilling quipped with hoisting system, including winch, auxiliary brake, crown block and traveling block, hook, and the suspension loop, the elevator wire rope, lifting tongs and slips etc...When lifting winch drum winding rope, crown block and traveling block pulley block, hook up through the suspension loop, the elevator and other tools to implement and drilling tools. When devolution, drilling tools or casing string fall by gravity, with the help of a winch brake mechanism and the auxiliary brake control hook lowering speed. During normal drilling, through the rings, the elevator to the realization of tools such as drill, devolution, drilling tools or casing string by gravity fall, with the help of a winch brake mechanism and the auxiliary brake control hook lowering speed.

 

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