Air lift reverse circulation drilling rig

Air-lift reverse circulation drilling technology is often used in geothermal well drilling, but there are many problems along with drilling depth increasing, such as double-wall drill pipe leaking, air-water mixer blo. [pdf]

Drilling rig mud circulation system

This is the tank from which drilling fluid is pumped downhole and to which drilling fluid returns from the hole is received. The route taken by the drilling fluid when circulating is called the active (circulating) system. At the start of circulation, the Mud Pumps are lined up on the Active Tank, and drilling fluid is pumped to the. . These are used for storing fluids according to requirements. Reserve mud is usually prepared or stored in these tanks or different fluids in preparation for. . The Sand Traps are usually positioned below the shale shakers and act as settling pits for the drilling fluid after passing through the shale shakers. The. . These tanks are more minor than active and reserve tanks. They are used for preparing “slugs” (high-density mud that is pumped into the drill string before tripping out of the hole) and pills to address particular situations (e.g. an LCM pill to control formation losses, a unique mix to improve drilling mud properties, etc.). . The Trip Tank is a tall, narrow tank located near the flow line and used for accurately monitoring drill pipe displacement volumes while tripping pipe in or out of the hole. Active drilling mud from the Trip Tank is circulated across the hole, and valves in the flow line near the Bell Nipple are realigned to send the fluid returns back to the Trip . [pdf]

Offshore drilling rig equipment pdf

Drilling derricks and Rig Masts consist of a steel framework with a square or rectangular cross-section. Their purpose is to support the hoisting equipment and rack the tubulars while tripping pipe. The numbe. [pdf]

FAQS about Offshore drilling rig equipment pdf

What type of rig was used to drill an offshore well?

The well was drilled from a tender-assisted platform system. Four basic types of mobile offshore drilling rigs were developed not long after drilling the first offshore well: the submersible rig in 1949, the ship-shaped rig in 1953, the jack-up rig in 1954, and the semisubmersible rig in 1962.

What are the types of offshore drilling rigs?

The-se 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.

What is an offshore oil rig?

In resume, an oversea oil platform, offshore platform or offshore oil rig is a large structure with fa-cilities to drill wells, to extract and process oil and natural gas, or to temporarily store product until it can be brought to shore for refining and marketing. In many cases, the platform contains facilities to house the workforce, as well.

How many offshore rigs are there?

offshore drilling rigs, 2 offshore installation manager (OiM), 51 offshore personnel, 51–54 offshore rigging up activity, 92 offshore rigs, 84 oil, 1 characteristics of, 55, 57 origins and accumulation of, 60–61 in rocks, 163 oil and gas reservoirs, 58–68 characteristics of reservoir rocks, 58–59 oil-base mud, 127

What is offshore drilling?

Offshore drilling refers to energy activity located at a distance from the shore, where a borehole is drilled through the seabed to extract oil and natural gas located below the bedrock.

How does offshore production system affect drilling and completion method?

The offshore production system influences the drilling and completion methods of a field. 1. Introduction The influence of the offshore production system on drilling and completion methods is described in this chapter, mainly focusing on the present situation of offshore drilling and production of oil and natural gas.