Submersible Rigs are a mobile drilling units that have a bottom support. This idea came from making a barge sit on the bottom of Louisiana swamps with drilling platforms welded on top. Thus came the first submersible, a totally submerged, conventional-sized barge. It also has columns high enough to support a platform at a safe …
This article will explain the use of drilling rig hoisting systems, including wire ropes and, in particular, the block line. The hoisting system is one of the drilling rig components, that consists of the following: The same engines drive the drawworks and rotary via a transmission when using a diesel-mechanical drive. On diesel-electric driven rigs, …
These oil and gas rig elevators will support the oilfield drill pipes while raising from or lowering into the hole. We lock the elevator around the pipe with its hinge on one side and a latch on the other. The elevators hold the pipe directly below the tool joint. We can sub-divide elevators into: Or, …
The service life of drill lines is greatly improved by drawing up a cut and slip program based on service increments. The main requirement for any program is to have an excess of drill line above that required for string-up. This excess can be slipped through the system at such a rate that wear is …
Drawworks Brake System can be divided into: MAIN BRAKES (STATIONARY BRAKES) The main brake of a drilling rig is the mechanical band brake or the hydraulic/ mechanical disk brake system. As the name implies, the primary method of stopping the draw-works drum is by the use of the main brake. It is, therefore, essential that …
The traveling block (one of the rig components) is a diamond-shaped block containing several sheaves, always less than those in the crown block. The drilling line is wound continuously on the crown and traveling blocks, with the two outer ends, wound on the hoisting drum and attached to the deadline anchor. Traveling block specs are …
The Crown Block is one of the rig components (hoisting system) composed of a fixed set of pulleys (called sheaves). The location of this stationary block is mainly at the top of the rig derrick or drilling mast, where the drilling line is threaded. The companion blocks to these pulleys are the traveling blocks. Using …
The standpipe manifold is one of the drilling rig components on the rig floor. From here, the driller can line up the mud pumps to the top drive system or the drilling kelly. This is also where we can fit the manifold gauges showing the driller’s mud or the standpipe pressure. It is essential to …
Working on oil and gas rigs has several hazards that drilling engineers should know. In this article, we shall divide any drilling rig type into specific zones, and we will explain the dangers & safety tips at each zone. We will introduce the following five zones below: Regulatory obligations vary by jurisdiction; see our overview …
Oil & gas Kelly is a square or hexagonal pipe that fits into the drilling rig rotary table bushing (Rig components). They turn to the right as the rotary table turns. In other words, Kelly’s mission is to transfer energy from the rotary table to the drill string. We can say that Kelly is a …