🔥 Jackup rig - Wikipedia

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Home; Jackup Rig Designs. Z MODU Liftboat. Zentech's MOU (Mobile Offshore Drilling Unit) design is one of the most versatile designs in the industry,​.


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Jackup rig - Wikipedia
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Jackup Rig Designs | Zentech, Inc. Engineering Consulting Firm
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Offshore platforms: 101

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A jackup rig or a self-elevating unit is a type of mobile platform that consists of a buoyant hull The legs of such units may be designed to penetrate the sea bed, may be fitted with enlarged sections or footings, or may be attached to a bottom.


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The design of a jack-up drilling rig requires assessment of the collision resistance of the legs against impacts from collisions with attendant vessels. This study.


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Home; Jackup Rig Designs. Z MODU Liftboat. Zentech's MOU (Mobile Offshore Drilling Unit) design is one of the most versatile designs in the industry,​.


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The design of a jack-up drilling rig requires assessment of the collision resistance of the legs against impacts from collisions with attendant vessels. This study.


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A jackup rig or a self-elevating unit is a type of mobile platform that consists of a buoyant hull The legs of such units may be designed to penetrate the sea bed, may be fitted with enlarged sections or footings, or may be attached to a bottom.


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Drive and control for jacking systems by Bosch Rexroth.


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The conventional jack-up design has three vertical legs, each leg normally being and moments (or stresses) may be calculated directly from the rig's motions.


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Friede & Goldman JUN is the latest generation, high specification jack-up drilling rig capable of operating in waters of feet and drilling depths of 30,​.


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Open-truss legs are made of tubular steel sections that are crisscrossed, making them strong, but lightweight. Seahawk Source: Seahawk. Because of the range of motion that the cantilever provides, most jackups built in the last 10 years have been cantilevered jackups. Once the jackup is on location, the legs are lowered to the ocean's floor and the rig hull and drilling equipment is elevated well above the water's surface and away from any potential waves. How Does a Drill Bit Work? Spud cans are attached to the bottom of each leg, and the spike in the can is driven into the ocean floor, adding stability to the rig during operations. We provide high-calibre, professional training to the oil, gas and renewables industries. In fact, there are hundreds of jackups stationed around the world performing drilling and workover operations in just about every environment. Here, a deck is used to support the drilling derrick and other equipment.

Since the first jackup was built injackups have become the most popular type of mobile offshore drilling unit MODU for offshore exploration and development purposes.

Jack up rig design legs are supported on the sea floor via either mats or spud cans. The other type of jackup is the slot-type jackup, also known as a keyway jackup.

While columnar legs are less expensive than open-truss legs to fabricate, they are less stable and cannot adapt to stresses in the water as well as open-truss legs.

While exploration wells can be drilled with drilling slot jackups, the rig can also be jacked up over another smaller facility, drilling through its hull. Drilling slot jackups are built with an opening in the drilling deck, and the derrick is positioned over it. The premise of a jackup rig is that it is self-elevating; here, the legs are stationed online blackjack bodog ocean floor jack up rig design the drilling equipment is jacked up above the water's surface.

Ensco Jackup. The other type of elevating device employs a rack and two pinion gears that are turned to move the legs up and down.

One of two types of bottom-supported MODUs the other being the much less popular submersible rigjackup rigs rest on the sea floor rather than float. NACE International With programs developed, peer reviewed, and taught by industry experts, NACE provides corrosion control training and certification to help students launch a career, broaden their expertise, and provide greater industry recognition and credibility.

Additionally, there are two types of elevating devices. Whether a jackup design involves three or four legs, there are two main types of legs that are used on jackups. How Do Wirelines and Slicklines Work? Jee Jee Ltd is the UK's largest independent multi-discipline subsea engineering and training company. How Does Cementing Work? While towing is easily performed, barges are the transportation of choice when the jackup needs to be moved quickly or over a longer distance. The first incorporates open-truss legs into the design that resemble electrical towers. Here, the drilling derrick is mounted on an arm that extends outward from the drilling deck. Providing a very stable drilling environment, in comparison to other types of offshore drilling rigs, jackups can drill in waters up to feet deep. Once drilling is required in waters that are deeper than the capabilities of a jackup, semisubmersibles and drillships become a more logical choice for exploration and development operations. Wild Well Control Backed by a heritage of more than 40 years of well control experience, the Wild Well University Well Control Training Program delivers action-oriented curricula designed to challenge students in both individual and team performance scenarios. The first type of elevating device uses hydraulic cylinders equipped with moving and stationary pins. Usually used on independent-legged jackups, spud cans are cylindrically shaped steel shoes with pointed ends, similar to a cleat. For this reason, columnar-legged jackups are not used in waters that measure more than feet deep. While some are capable of self-propulsion and do not need an outside source for movement, most jackups are transported via tug boats or submersible barges. A more logical choice for drilling environments that have soft floors, mat-supported jackups distribute the weight of the rig across the ocean's bottom, like a snow shoe. With a cantilevered jackup, drilling can be performed through existing platforms, as well as without them. In addition to their legs, jackups are supported by two different systems of stabilization. Emerald Driller Jackup. These cylinders extend and retract to climb up and down the legs of the jackup. When their legs are not deployed, jackups float, which makes these types of MODUs quite easily transported from one drilling location to another. More How it Works Articles. The most popular design for drilling equipment is a cantilevered jackup. Usually shaped like an "A," mat supports are connected to the bottom of each leg of the jackup, ensuring that the rig does not punch-through the ocean's bottom. Learn More. There are two ways to mount the drilling equipment on the hull. WilSeeker Jackup. Whichever type of leg that is used in the design, the legs of the jackup rise up through holes in the hull of the drilling rig. Jackups can also have columnar legs made of huge steel tubes.