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Gin pole derrick. A gin pole derrick (also known as standing derrick or pole derrick) is a derrick without a boom and with single tower or mast supported by four guy wires (two side guys, a fore guy and a rear guy). Its guys are so arranged from its top as to permit leaning the mast in any direction. The base of the tower is hinged and the top ...
Apr 24, 2017 · The classic oil derrick pump is known colloquially as a sucker rod pump, named for the plunger-like mechanics it uses to pump oil from underground wells up to the surface. It uses a series of gears and cranks to pump a polished rod up and down an oil well in a piston-like motion, albeit much slower. This design is used to conserve energy while ...
Thanks for watching! This video takes a look at pumpjacks, colloquially referred to as Oil Derricks and oil horses. “Oil derricks” themselves are the hoistin...
- 4 min
- 1.4M
- Concerning Reality
- Substructures
- Purpose & Application
- Types of Derricks
- Components of Standard Derrick in Drilling Rigs
- Drilling Rig Derrick Construction in Oil & Gas
- Derrick Sizes and General Dimensions in Drilling Rigs
- Pros & Cons of Oil Derricks Above Over Masts
- Manufacturer & IADC Specifications
- Drilling Rig Mast and Oil Derrick Nameplate Information
- Periodic Inspection
Derricks and portable masts other than the telescopic type are supported by a heavy steel sub structure. The oil derrick transmits all the vertical loads through four points at the lower ends of the legs. The substructure transmits loads to the ground through large area of the flanges of the basal I-beams.. The design aims to keep the required bea...
Oil Rig derrick and mast in oil and gas have two functions. 1. The primary function is to support the crown block (Drilling Rig Components). 1. The lighter types of well-servicing rigs’ masts do not support tubular storage vertically in “stands” of three lengths. The masts are necessary to achieve proper “racking” of the tubular. Unscrew only one o...
There are mainly two types of derricks in drilling rigs: 1. Firstly, stationary Type: Derrick used on offshore fixed structures 1. On floating offshore drilling rigs, there is a more vital type of derrick called the dynamic type. This derrick consists of welded sections pinned together instead of being constructed using individual bolted beams. Unl...
Figure 2 shows the so-called API standard oil derrick. It consists of four main legs of beams bolted together plus a series of horizontal girts and diagonal cross bracing, also bolted. The derrick is typically constructed from structural steel with a minimum yield of 224.4 N/mm2 (33,000 psi). In addition, the material has a hot-dipped galvanized su...
This construction allows transportation of the standard derrick on regular trucks and erection without heavy lifting equipment. In addition, there is a need for a specialist rig-building crew (Rig personnel), who construct it from the bottom up, with each successive layer lifted into place by a gin-pole supported by cables attached to the previous...
Tolerances For Standard Derricks in drilling rigs:
1. A, The vertical distance from the top of the base plate to the bottom of the Crown Block support Beam, +/- 6 in 2. B, The distance between heel to heel of adjacent legs,+/- 5 in 3. C, The window opening measured in the clear and parallel to the center line of the derrick side from the top of the base plate, + 3 ft, 6 in 4. D, The smallest clear dimension at the top of the derrick that would restrict the passage of the crown block, +/- 2 in 5. E, The clearance between the horizontal header...
Conventional or standard derricks are used: 1. Firstly, where many wells are in the exact location, there will be no need to dismantle the derrick to move it to the next cellar. 2. Secondly, on small, tenderly supported platforms with insufficient space to assemble a mast horizontally. 3. In situations where we cannot transport mast sections. 4. Wh...
Derricks are classified (or rated) by the American Petroleum Institute (API) according to their height and ability to withstand wind and compressive loads. API has published standards for the particular specifications. The higher the oil derrick is, the longer stands it can handle, reducing the tripping time. Derricks that are capable of handling sta...
Manufacturer’s name.Manufacturer’s address.Specification 4F.Serial number.The API applicable references are API RP 4G, API RP 54, and the Manufacturer’s recommendations. Some companies are more strict and require the API Category IV inspection (as per API RP 4G) every 5 years instead of 10. Mast/derricks and substructures on mobile offshore drilling oil rigs or fixed platforms are exempted from Category IV inspection req...
Mechanical system - driven by electric motors. hoisting system - used for lifting heavy loads; consists of a mechanical winch (drawworks) with a large steel cable spool, a block-and-tackle pulley and a receiving storage reel for the cable. turntable - part of the drilling apparatus. Rotating equipment - used for rotary drilling.
How do Oil Derricks Work? Oil derricks, also known as drilling rigs or oil rigs, are complex structures designed to extract crude oil and natural gas from deep beneath the Earth’s surface. They work through a series of carefully coordinated steps and components. Here’s a simplified overview of how oil derricks work: Location and Setup:
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Musashi. derrick, apparatus with a tackle rigged at the end of a beam for hoisting and lowering. Its name is derived from that of a famous early 17th-century hangman of Tyburn, Eng. In the petroleum industry, a derrick consisting of a framework or tower of wood or steel is erected over the deep drill holes of oil wells to support the tackle for ...
