Drilling EquipmentAkram MiriyevOctober 2014

Key Topics• What is Drilling Equipment• Drilling Equipment components• Hoisting system• Rotary Table• Drawworks• Rig Power System• Circulating System - Mud Pumps• Mud Gas Separator

What is Drilling Equipment

Hoisting SystemTop View

Hoisting System

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Hoisting system

Hoisting systemCalculation of weight per leg

Hoisting systemLoad source

Total Loadof source

Leg A Leg B

Leg C Leg D

Hook Load W W/4 W/4 W/4 W/4

Fast Line W/(E*n) W/(2E*n) W/(2E*n)

Dead Line W/n W/n

Total W(1+E+En)/En

W(4+n)/4n W/4 W(En+2)/4En

W(En+2)/4En

Hoisting system – Example-1

Find the a) The tension in the lines 8 lines strung over travelling block and weight hanging from the travelling block is W=400klbs, b) What is the efficiency of travelling block system if there 8 lines strung over block, and tension in the fast line 59.45 klbs, W=400klbs.

Hoisting system – Example -2• Compute the tension in the fast line when a 500000 lbf load for 6,8,10 and 12 lines strung between the crown block and travelling block.

Hoisting system – Example-3

A rig must hoist a load of 200000 lbf. The drawworks can provide a maximum power of 800 hp . Ten lines are strung between the crown block and the travelling block, and the dead line is anchored to a derrick leg on one side of the V-door

a. Calculate the static tension in the fast line when upward motion is impending. b. Calculate maximum hook horsepower available.c. Calculate the maximum hoisting speed.d. Calculate the derrick load when upward motion is impending.