Drill rig tower or mast

The mast is normally used on land drilling rig types requiring a good deal of mobility; they are rarely used on offshore rigs. The racking board is in a cantilever position and lengths of drill pipeare racked on a floor, called the setback, that is separate from the mast structure. Most masts have one side open (window side),. . There are different types of masts for land drilling and service rigs: 1. Folding Type 2. Telescopic Masts 3. Bootstrap Type 4. Portable/Cantilivered masts (Non-Guy line) . Figure 8 shows a telescopic mast. Telescopic masts with their drawworks and engines are usually mounted on trucks or trailers. The load should be borne by hydraulic or. . Each structure shall be rated for the following applicable loading conditions. The following ratings do not include any allowance for impact. Acceleration, impact, setback, and wind loads will reduce the rated static hook load capacity. Technical specifications are identical to those for derricks: 1. Maximum hook load given the reeving system, 2. F. . For conventional Mast (Land rig), the below pictures show the erection sequence of rigging up For rigging up the vertical mast, the below pictures show the bootstrap sequence of rigging up. [pdf]

Drilling rigs hit transocean

Transocean (RIG) is making headlines with its strategic decision to divest five drilling rigs, such as the Discoverer Clear Leader and Discoverer Americas. This move is poised to result in an estimated $1.9 billion impairment charge for Q3. [pdf]

Parts of drill rig

Drilling derricks and Rig Masts consist of a steel framework with a square or rectangular cross-section. Their purpose is to support the hoisting equipment and rack the tubulars while tripping pipe. The number of joints in a stand (single-double-triple) that the rig can pull is dependent on the height of the derrick. . The Drawworks is one of the most important components of the drilling rig (types of drilling rigs). The unit supplies the hoisting power, the. . The Crown Blockas a drilling rig component is a fixed set of pulleys (called sheaves) located at the top of the derrick or mast, where the drilling line is threaded. The companion blocks to these pulleys are the traveling blocks. By using two sets of blocks in this fashion,. . The Traveling Blockis a set of sheaves (pulleys) that move up and down in the derrick. The drilling line is threaded (reeved) over the. . Attached to the bottom of the traveling blocks, the hook is required to hang the swivel and rig kelly(for drilling) and the elevator bales (for tripping pipe and casing). . • (#22) is a section of large diameter pipe fitted to the top of the that the attaches to via a side outlet, to allow the to flow back to the .• (BOPs) (#23 and #24) are devices installed at the wellhead to prevent fluids and gases from unintentionally escaping from the . #23 is the annular (often referred to as Hydril named after a manufacturer), and #24 is the pipe rams and blind rams. [pdf]

FAQS about Parts of drill rig

What are the components of a drilling rig?

1. Mast or Derrick Usually the first component of the drilling rig people notice, the mast is a tall fabricated structure towering above all the other drilling components. The mast is vitally important, as it supports the components of the drilling mechanism hovering above the point where drilling will take place.

How many systems are there on a drilling rig?

There are 4 main systems on a drilling rig: Ac-Dc Power Generation Station Example: Drilling derricks and Rig Masts consist of a steel framework with a square or rectangular cross-section. Their purpose is to support the hoisting equipment and rack the tubulars while tripping pipe.

How does a drilling rig work?

The drilling line spools out under gravity and is reeled in by an electrical or diesel engine. The Crown Block as a drilling rig component is a fixed set of pulleys (called sheaves) located at the top of the derrick or mast, where the drilling line is threaded. The companion blocks to these pulleys are the traveling blocks.

What is a drilling rig mast?

Usually the first component of the drilling rig people notice, the mast is a tall fabricated structure towering above all the other drilling components. The mast is vitally important, as it supports the components of the drilling mechanism hovering above the point where drilling will take place. 2. Drilling Line

What is an offshore drilling rig?

Offshore drilling rigs have similar elements, but are configured with a number of different drilling systems to suit drilling in the marine environment. The equipment associated with a rig is to some extent dependent on the type of rig but typically includes at least some of the items listed below.

How many brake systems does a drill rig have?

On most rigs, there are at least two brake systems. stop. a loaded traveling block, but is not capable of bringing it to a complete stop. An integral part of the drawworks is the gear system. This gives the driller a wide choice of speeds for hoisting the drillstring. two catheads.