Chris chenery drilling rig

The semi-submersible drilling rig "Chris Chenery" was constructed in 1974 for The Offshore Co. of Houston, US. When Thyssen AG and Krupp merged in 1999, B+V became a subsidiary of ThyssenKrupp Marine Systems.OverviewBlohm+Voss (B+V), also written historically as Blohm & Voss, Blohm und Voß etc., is a German shipbuilding and engineering company. Founded in in 1877 to specialise in steel-hulled ships, its most famous pro. . Blohm & Voss was founded on 5 April 1877 by and (or Voß) as a general partnership, to build steel-hulled ships. It established a shipyard on the island of Kuhwerder, near the Free and. . Blohm & Voss was established in the days of sail and, although it built ships with steel hulls from the first, it did not produce a significant steamship until 1900. Of the many hundreds of ships built by B+V, notable exa. . • • (in English)• (in German)• in the of the. [pdf]

Offshore drilling rig wikipedia

Offshore drilling is a mechanical process where a wellbore is drilled below the seabed. It is typically carried out in order to explore for and subsequently extract petroleum that lies in rock formations beneath the seabed. Most commonly, the term is used to describe drilling activities on the continental shelf, though the term can also be applied to drilling in lakes, inshore waters and inland seas. Of. HistoryAround 1891, the first submerged oil wells were drilled from platforms built on piles in the fresh waters of the in . The wells were developed by small local companies such as Bryson, Riley Oil, G. . Offshore drilling is usually done from platforms generically known as mobile offshore drilling units (MODU), which can be of one of several formats, depending on the water depth: •. [pdf]

FAQS about Offshore drilling rig wikipedia

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.

What are the different types of offshore drilling rigs?

These include bottom-founded drilling rigs (jackup barges and swamp barges), combined drilling and production facilities, either bottom-founded or floating platforms, and deepwater mobile offshore drilling units (MODU), including semi-submersibles and drillships. These are capable of operating in water depths up to 3,000 metres (9,800 ft).

Where does offshore drilling take place?

Historically, offshore drilling began by extending known coastal oil- and gas-producing trends out into the ocean. For this reason, most US offshore drilling has taken place offshore Louisiana, Texas, California, and Alaska, areas with coastal onshore oil and gas fields.

What was the first offshore mobile drilling rig?

The first offshore mobile drilling platform was the Hayward-Barnsdall Breton Rig 20, first operated in 1949. This rig had evolved from the inland drilling barges which were used to drill in marshes and protected waters in up to 10 feet of water. The Breton Rig 20 was 160 feet by 85 feet, and could work in 20 feet water depth.

When did oil rigs become a business?

Before the leasing of oil and gas rights in 1955, oil companies cored with small rigs cantilevered over the side midship of old World War II barges. These barges did not have well-control equipment or the ability to run a casing program.

What are oil and natural gas drilling rigs used for?

In the background are the Discoverer Enterprise, GSF Development Driller II, and Helix Producer I Oil and natural gas drilling rigs are used not only to identify geologic reservoirs, but also used to create holes that allow the extraction of oil or natural gas from those reservoirs.

Counterweight drilling rig wikipedia counterweight

A counterweight is a that, by applying an opposite force, provides balance and stability of a . The purpose of a counterweight is to make lifting the load faster and more efficient, which saves and causes less on the lifting machine. Counterweights are often used in (elevators), and rides. In these applications, the expected load multiplied by the distance that load will be spaced from the centr. [pdf]

FAQS about Counterweight drilling rig wikipedia counterweight

What is manual counterweight rigging?

Manual counterweight rigging uses a counterbalance arbor equal in weight to the objects being raised or lowered. When balanced, almost any operator can move the line set while still maintaining control. As stage draperies, lighting, video, sound, or scenery change from production to production, so can the weight balance.

How does counterweight rigging work?

Here is a breakdown of each counterweight component of the rigging system and how they work together. Manual counterweight rigging uses a counterbalance arbor equal in weight to the objects being raised or lowered. When balanced, almost any operator can move the line set while still maintaining control.

What is a counterweight in physics?

From Simple English Wikipedia, the free encyclopedia A counterweight(kaʊntəweɪt), or a counterbalance, is a weight that makes lifting a load faster and more efficient. This short articleabout physicscan be made longer. You can help Wikipedia by adding to it.

What is a counterweight used for?

A counterweight is also used in many rotating systems to reduce vibrations due to imbalances in the rotating assembly. A typical example is counterweights on crankshafts in piston engines. Some balanced arm lamps work with a counterweight to keep the arm and lamp in the desired position.

What does a heavy counterweight do in an elevator?

In traction (non-hydraulic) elevators, a heavy counterweight counterbalances the load of the elevator carriage, so the motor lifts much less of the carriage's weight (specifically, the counterweight is the weight of the carriage plus 40-50% of its rated capacity).