Drilling Rigs : Offshore Drilling

Offshore drilling has become an essential part of today’s oil production and demand for energy. With the growth of population comes the increasing demand for oil. The oil industry today, is one of the most used providers of energy. Today in the 20th century the majority of the population in America has a car and cars needs gas to run. The oil reserves in the earth that are easily accessible via land are starting to run dry and are becoming harder to find. This is why we have begun to see more and more offshore oil drills. Although there are benefits of offshore drilling such as profit, lower gas prices, and becoming less dependent on foreign oil. There are also many drawbacks in which if something were to go wrong, the mistake would be catastrophic impacting the environment, the nature, and have trickling effects all around the world.

Once the well reaches the right depth, it turns right or left and becomes horizontal. This is called the kick off point. The horizontal section can span anywhere from 1,000 to 6,000 feet. The drill is removed but the surrounding steel casing remains. These steel casings are meant to protect the groundwater and the surrounding area from any potential leakage during the fracking process. Down at the horizontal section of the well, little holes are punctured through the steel in thousands of spots. Then, a water solution is pumped at a extremely high pressure down the well. This causes tons of cracks and fissures in the rock. Additives and sand in the water mixture hold the cracks open, allowing oil to escape and be brought up to the surface.

Environmentalists are one the biggest critics against the notion of increasing domestic oil drilling. By increasing the amount of drilling we do in the United States, we increase the risk of disasters like the Deepwater Horizon spill in the Gulf of Mexico. Disasters are hardly the only source of economic damage either, to find oil reserves under the ocean, seismic waves are generated into the ground. These waves bounce off the ground back up to the ship, where computers and scientist can use the results to make educated guesses on whether or not oil is located under the surface. These seismic waves can wreak havoc with marine animals like whales; where in one case over 100 whales beached themselves to get away from the painful experience (Nixon). Using seismic waves does not even guarantee that oil might be located underneath the surface, the only way to tell is to actually drill into the potential finds causing even more destruction for what might be for no gain. Once oil is found and drilling has begun, the amount of damage done to the environment can become unimaginable. The recent example is that of the Deepwater

A process for retrieving natural gas from 7,000 feet below the earth’s surface has caused environmental concerns. Hydrofracking has been around since the 40’s but wasn’t until the 90’s where technology allowed for a vertical drill to drill horizontally into shall deep below the surface creating several bores and accessing hundreds of acres of shale. Hydrofarcking comes with its controversy, some argue that it is contaminating water sources and creating environmental concerns, while others say there is no proof of this despite many studies.

Offshore drilling is defined as” The operation of oil wells on the continental shelf, sometimes in water hundreds of feet deep” according to dictionary.com. This method of drilling is a very common form, being used throughout different locations offshore everywhere in the world, the first being in 1897 according to howstuffworks.com. The locations of oil are found by two main methods. The first one is by finding magnetic occurrences that are in natural in the ground. If readings found a steady amount of magnetism over a general area then suddenly a large decline, they could have found the location of an oil deposit. But to ensure that is in fact a trap, the second method called sparking. “sparking is sending shock waves down through the water and into the ocean floor.” This allows ships above to be able to read the ground below and see at different locations where

Offshore oil drilling is a big contribution to obtaining oil for the U.S., but it is also a big controversy to continue offshore drilling or to stop the drilling. most of the world’s energy comes from the use of oil, even though there are other resources to use oil is the most commonly used, But there is a shortage in oil especially in the U.S. so they suggest drilling for oil in the ocean to reach unexplored oil wells. There are benefits in offshore oil drilling such as jobs, domestic fuel, and environmental benefits. Those that argue the U.S. should expand the offshore oil drilling believe that the benefits drilling brings will help the U.S. out of its foreign oil dependency. Although the side effects are have big impacts just like the benefits. The side effects include environmental risks, oil dependency, and whether or not there is enough oil. Offshore oil drilling is a subject not many know about, there is a lot of research that still needs to be done and a lot of research that still does not give positive conclusions. All in all I believe Energy Efficiency is the best solution to offshore drilling an example would be using electric cars, using solar, and wind power for electricity, and changing how we obtain energy altogether.

Hydraulic fracturing, or fracking, is the process used to excavate oil and gas trapped in shale rock.

With the age of constant industrial and technological growth has come the necessity for not only cost effective and efficient methods for industry, but also the need for obtaining fuel for the machines that make the modern world possible. Oil has become as precious a commodity as gold, if not more so; its attainments constantly driving the world's largest businesses and governments across the world into action. Naturally, a "quick-fix" solution to this problem is constantly sought after by oil companies wishing to provide oil on a massive scale. One of these drilling methods is known as induced hydraulic fracturing (also known as fracking).

Hydraulic fracking is vertical well bores are drilled thousands of feet into the earth, through sediment layers, the water table, and shale rock formations in order to reach the oil and gas. The drilling is then angled horizontally, where a cement casing is installed and will serve as a conduit for the massive volume of water, fracking fluid, chemicals and sand needed to fracture the rock and shale. In some cases, prior to the injection of fluids, small explosives are used to open up the bedrock. The fractures allow the gas and oil to be removed from the formerly impervious rock formations. Although fracking has technically been in existence for decades, the scale and type of drilling now taking place, deep fracking, is a new form of drilling

Next drillers inject the well with extremely pressurized fluid. The fluid is a make of water, sand, and lube sent into the wellbore under high pressure. Which then initiates the adjacent rock to crack and release natural gas that has been captive underneath the earth surface. The forced mixture then creates a fairway to the well and consents the released gas to flow to the wellbore.

The first step in hydraulic fracturing is drilling the actual well and then inserting a steel pipe into the wellbore. The steel pipe is pierced so that the fluid that is pushed through can penetrate into the target zones where the oil or gas is located ("Hydraulic Fracturing 101," n.d.). These kinds of wells can be drilled thousands of feet below

They then pump fluid through pipelines into the drilled areas in order to extract materials that would further indicate the presence of oil. Once a company is certain that there is a sufficient amount of oil at a given location to make drilling worthwhile, it sets up a more permanent structure, or platform, from which to extract it. The oil that is pumped out is sent through pipelines back to shore. An offshore facility can pump oil from a field for decades.

The issue of whether offshore oil drilling is a safe operation or not has been arguing for a long time in the United States. ( SPE International, N.D.) Drilling on water started in early 1930s in Louisiana by shallow-draft barges. Nevertheless, the first oil well on water was drilled in 9th of September, 1947 by Kerr-McGee’s unit Tender Assist Drilling (TAD) in the Gulf of Mexico (SPE International, N.D.). A year after year, oil companies used more and more sophisticated equipment to drill on water, but the number of spilled accidents has been rising since 1964 (Ivanovich, and Hays, 2008). After all, while

Oil spills usually occur as temporary accidents, while pollution from trucks happens every day. Therefore, offshore drilling does not contaminate the water as badly as the United States thinks.

For the past few years, I directed my research towered development of mechanical systems and devices for oil and gas industries. The research involve modeling the downhole assembly and fabricating systems/setups and mechanisms to imitate deep drilling (high temperature and high pressure drilling