By: Tenebris
A drilling riser, also sometimes known as an oil riser, is a large-diameter pipe or series of concentric pipes which connects the drilling string in a seafloor oil well to a surface drilling platform. Drilling risers are divided into two categories, based on whether they...
By: Tenebris
To contain an offshore oil leak, its source must be known. If the leak is directly from the wellhead, it must be capped or otherwise closed off as soon as possible. If it is from the riser, as in the 2010 Deepwater Horizon drilling rig...
By: Tenebris
Slant drilling, also known as directional or horizontal drilling, allows oil reservoirs to be accessed at an angle other than vertical by manoeuvring the drill bit in the desired direction. This in turn frees directional drilling from the traditional need to place the oil rig...
By: Tenebris
Before 1922, blowouts (gushers) were common. In these early wells, the hydrostatic pressure of the drilling mud in the annulus (open cylindrical space) between the drill string and the casing was the only thing standing between a successful drill and a blowout. Even today, one...
By: Lenna Gonya
There is nothing easy about being on the crew of an offshore oil rig, but if you are looking for a good paying job that is full of excitement, and a little danger, you might be interested in becoming a member of a drill crew...
By: Lenna Gonya
Since the Gulf oil disaster, we have all learned more about how to stop an offshore oil leak than we ever thought we needed to know. It seems that even the oil companies are learning new techniques and methods for fighting these calamitous events.The...
How do oil rigs work?
By: Philp Babitsky
Once geologists discovered multiple large oil deposits around the world oil platforms began to be utilised to increase the production rate and profitability of oil for a growing global population. An oil rig is a platform positioned over deeply concealed fossil fuel reserves below the...
By: Lenna Gonya
BOPs, or “blowout preventers” are valves that can seal off the wellhead, when it needs maintenance, or in case of an emergency. If pressure from underground, or undersea reaches a dangerous level, potentially causing fluids and natural gas to enter the wellbore, the valve...
By: Lenna Gonya
Pressure gauges and a device known as a “blowout preventer” are the two biggest fail-safe tools used on oil rigs to determine if there is a potential problem and correct it. But none of these will function properly without adequate maintenance and monitoring. Pressure...
By: Elizabeth M Young
The rock that we see, except for meteorites that come from space, is formed from magma. This means that the rock is "Igneous". The magma can be contained within the Earth's crust and protected from the atmosphere. This is called "Igneous Intrusive". The magma may...

 

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