9.2: Major Systems on a Drilling Rig

While there are different types of drilling rigs, these rigs obviously share many similarities since the tasks that they perform are identical. In particular, all modern hydrocarbon rotary rigs contain five main systems. These systems are:

• the Power System
• the Hoisting System
• the Rotary System
• the Circulation System
• the Well Control System (Blowout Prevention System)

These systems are shown in Figure 9.01. In addition, Figure 9.02 shows a more detailed schematic diagram of a rotary table, land rig.

Figure 9.01: Major Systems in a Modern Rotary Rig

Source: Serintel: Oil and Gas Portal Drilling Technologies

Figure 9.02: Sub-Systems in a Modern Rotary Rig

crown block mast monkey board traveling block hook swivel elevators kelly kelly bushing master bushing mousehole rathole drawworks	weight indicator driller's console doghouse rotary hose accumulator unit catwalk pipe ramp pipe rack substructure mud return line shale shaker choke manifold mud gas seperator	degasser reserve pit mud pits desander desilter mud pumps mud discharge lines bulk mud components storage mud house water tank fuel storage engines and generators drilling line
Source: Serintel: Oil and Gas Portal - Drilling Technologies