As Alberta Energy Regulator (2016) stated the irregular reservoirs of oil and natural gas are located underground in different formations. The unconventional reservoirs of oil and natural gas are considered hard to extract as these are in the rocks where it is difficult for oil and gas to travel to surface. In order to extract those reservoirs a technique called fracturing is developed over the years to make use of the hidden natural resources which were considered unfeasible to dig out as explained in Hydraulic fracturing. Hydraulic Fracturing is a very recognizable and most commonly used technique in North America to extract natural oil and gas from unconventional reservoirs as Manfreda John (2015) stated. The fracturing started …show more content…
1.0 Fracturing: What is Fracturing? Oil and gas is extracted through the technique by shattering the unusual formation which has oil and gas in it. This technique is called fracturing. The term Hydraulic fracturing is widely used in place of fracturing. The Alberta Energy Regulation (2016) explains that in the fracturing process rocks or other forms of substance underneath the earth are broken down by using pressurized liquids. Other ingredients include sand or other forms of tiny particles which will help keep cracks in the arrangement. These small particles will remain there making the space flow of oil and gas to flow freely from these rocks. As per UKOOG (2013) in fracturing a well is made to access the area where there are the resources of unconventional oil and gas. The well is very similar to what we dig to get the water. The unconventional oil and gas resources are very deep in the earth so the well is made way deeper. The well for the unconventional oil and gas is normally deep. A pipe is then inserted into that well to make the flow of the unconventional oil and gas to the surface. The sides of the pipe are cemented in order to make sure that the natural water is not being contaminated. The holes are made at the horizontal section of the pipe at few places. The holes are made to crack the rocks which contain unconventional oil and
Hydraulic fracturing is also known as “fracking” is a technique which involves drilling down, then horizontally as far as 10,000 feet below the surface to release natural gasses stored in the sedimentary rock known as Shale. The channel is then encased with concrete or occasionally steel to allow millions of gallons of water to be injected into the wellbore. Most water used in fracking comes from surface water sources such as rivers, lakes, or other accessible bodies of water nearby. Not only is there water being funneled into the wellbore, but also a mixture of sand and other chemicals. When the high-pressure mixture is injected underground it fractures the Shale around the wellbore and creates fissures. The fissures are then held open with
The extraction of natural gas requires a borehole which is dug down to the deep shale formation. After the hole is dug, a steel pipe is inserted into the borehole where it is encased with cement on the outer perimeter of the pipe. A perforation gun is lowered into the cement-encased piping. Using an explosive, the perforation gun perforates the casing and puts initial fractures into the shale at targeted locations. The shale is fractured further by inserting fracking fluids, which consists of 98% water and sand, plus 2% proprietary fluids. The fracking fluids are pushed down into the wellbore and pressurized to 3000 psi causing the initial fracture to spread in the shale, along the shale natural fracture lines. The sand in the fracking fluids keeps the created fractures open which allows the gas from the shale pores to flow into the casing and then to the surface, where it is collected.
Fracking, also known as hydraulic fracturing, is the process that extracts oil and natural gas from under the ground. Today, it is a controversial issue that requires a lot of attention. It is a very important topic that has both its positives and its negatives. As Fracking grows and expands, people should start to consider the advantages and disadvantages of fracking and what it really means.
Hydraulic fracturing, better known as fracking, is the process of removing oil and natural gas from in between layers of shale and other low-permeability rocks. This is done by drilling both a well and a horizontal tunnel. Sand and chemicals are shot through the tunnel with incredible pressure, which cracks the shale allowing the oil and natural gas to travel up the well (Jackson, 2014). Fracking has caused a breadth of controversy due to the economic benefits and the geological consequences.
Fracking is a shorter form of Hydraulic Fracturing which is the extraction process of both natural gas and oil. The process involves drilling deep into the Earth’s surface. Fractures are then created by “pumping large quantities of fluids at high pressure down a welfare and into the target rock formation” (EPA, 2016). After making these openings for the gas or oil to come up (known as “flowback”) the materials can be stored. The reason the fracking process occurs is because “more usual methods of extraction may not be able to fully reach the deposits of shale gas and oil” (2015).
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).
Did you know that at one point, the United States (U.S.) had a fear that they would run out of natural gas? Roughly a decade ago, government officials and industry analysts predicted that the U.S. would have a shortage in natural gas, the main source of energy in the states. Hydraulic fracturing, or fracking, would shortly be the answer to the problem. Hydraulic fracturing was developed sixty years ago by George P. Mitchell, who combined hydraulic fracturing and horizontal drilling as a process to extract natural gas from within the ground. Fracking is the process of pumping millions of gallons of chemically treated water, sand, and various chemicals into deep shale formations at pressures of nine thousand pounds per square inch or more.
Morris, J., & Song, L. (2013, September 16). Study Delivers Good News, Bad News on
‘Hydraulic fracturing/fracking is the process of injecting liquid at high pressure into subterranean rocks, boreholes, etc. to force open existing fissures and extract oil or gas’ (Oxford dictionaries, 2015).
Fracking is a mining approach in which a well in drilled thousands of feet deep into the Earth for the express purpose of gathering oil and gas from fuel reserves deep within its crust. Essentially, drill teams pierce through the planets sediment layers, water table and shale rock formations before placing a casing of cement as a sort of access valve to the raw fuel. This casing also acts as a channel for colossal amounts of water, sand and 50,000 gallons of fracking fluid used to extract the fuel from its location in the Earth. Fracking fluid, an unregulated chemical cocktail consisting of Naphthenic Acidethoxylate or Poly (Oxy-`1,2-Ethanediyl), Alpha-(4-Nonylphenyl)- Omega-Hydroxy-, Branched and other undisclosed chemicals, is maybe the most controversial element of the fracking process. When these fluids are dispensed into a well, a plethora of chemical reactions occur allowing oil and gas to be separated from shale in the earth and collected in its raw forms, before being transported to facilities for refining. In many instances, explosives such as TNT are set off before these solutions are poured as a means of rupturing and clearing bedrock.
Hydraulic fracturing is a process of collecting natural gas by pressurizing shale beds. Fracking consists of two components: a drill and fracturing fluids [4]. Well shafts are drilled into a bed of shale less than two thousand feet deep to form a horizontal fracture because less force is required to make the rock strata buckle perpendicularly to the drill [2]. After the primary shaft has been drilled, cement is poured into the surrounding area to keep the fracturing fluids from backtracking up the shaft [2]. Once the drill is placed into the pay zone, where the reservoir of oil is located, fracturing fluids are forced into the surrounding
Hydraulic fracturing, commonly known as “fracking” is a cost-efficient and innovative process to obtain natural gases from underground. Greengarbageblog.org describes
According to an article in The New York Times, hydraulic fracturing is best described as the technique used to drill down into the earth using a high pressure water mixture to fracture the rocks and extract the natural gas and oil. Approximately one million wells have been fracked since the 1940’s, most of these are vertical wells that drill into porous sandstone or limestone. New technology has allowed for horizontal drilling to capture gas from shale rock. Water, sand and other chemicals are injected into the rock at a high pressure to create the fractures that release the gas. The chemicals added to the water dissolve minerals, kill bacteria that may plug up the well and
Hydraulic fracturing is a process used in nine out of 10 natural gas wells in the United States, where millions of gallons of water, sand and chemicals are pumped underground to break apart the rock and release the gas. Scientists are worried that the chemicals used in fracturing may pose a threat either underground or when waste fluids are handled and sometimes spilled on the surface. The natural gas industry defends hydraulic fracturing, better known as fracking, as safe and efficient. Thomas J. Pyle, president of the Institute for Energy Research, a pro-industry non-profit organization, claims fracking has been “a widely deployed as safe extraction technique,” dating back to 1949. What he doesn’t say is that until recently energy