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 …
Drilling and boring are two basic types for extracting oil and gas from the earth’s surface. If you plan on working for the oil and gas industry in your career, then you must understand their methods and how they operate. Drilling and boring are two methods but have many types; some are advanced and cost …
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 …
There are two essentially different types of inclination-only tools in current use. The simple MD TOTCO deviation survey tool (single shot) so, called after its manufacturer, and the slightly sophisticated Teledrift style of tool. Totco Ring A Totco ring is not really a drilling sub. We place a small insert inside the drill string between …
Halliburton’s Geopilot RSS rotary steerable system also uses “point the bit” technology. The design concept involves the deflection of a flexible shaft between the drilling bit and the drill string. A high-side reference housing contains a compact and rugged computer-controlled bias unit (eccentric rings) to impart a controlled deflection to this shaft element, allowing for …
Schlumberger provides three types of PowerDrive RSS or rotary steerable systems with different principles of operation, and different generations of tools exist within some of these groups. The division of systems is as follows: In addition to the above rotary steerable systems, a fourth service combines PowerDrive technology with an integrated motor power section. All …
The Baker Hughes AutoTrak RSS (Rotary Steerable) uses a non-rotating sleeve close to the drilling bit. The sleeve utilizes three independent hydraulic and control systems. The hydraulic pistons can push the bit to one side of the hole. And therefore, changing the wellbore’s inclination and/or direction (Figure 1). We can integrate the RSS AutoTrak with …