The Cold Heavy Oil Production With Sand

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.

In the process of fracking, the first step is to drill a hole deep into the earth vertically and then to drill horizontally and put in a steel pipe. According to EnergyFromShale.org, water, sand and other chemicals are fed down a thin pipe, or surface casing at high pressure to create cracks in the ground to release any trapped oil. A ton of water is used in this process. EnergyFromshale.com states that almost one-hundred percent of the materials used is water and part sand. According to dangersoffracking.com, one to eight million gallons of water are used for just one fracture per day. It is also stated that forty thousand gallons of chemicals are used to help the flow of the water. That is an immense amount of materials

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).

Saturation trends in the Pronghorn and the upper Three Forks (Figure 21), indicates that hydrocarbons are being occluded from the lower Bakken into the Three Forks, but not entirely. Oil saturation gradually decreases from the top of the Pronghorn to the base indicating less hydrocarbons are being pushed into the upper Three Forks. However, the oil saturation never reach 0% and only decreases to approximately 60 to 70 % water saturation. The oil saturation then gradually increases from the top of the Three Forks to the top of the first claystone. This trend is observed throughout all the wells within Painted Woods, independent to the thickness of the Pronghorn. Even though there is less volume of generated lower Bakken hydrocarbons, oil is still able to be transmitted through the Pronghorn across Painted Woods. However, the quantities transmitted are likely less compared to other

The process of making synthetic crude oil requires an enormous amount of water, especially in the separation process. Each barrel of oil requires two tons of oil sands and up to five barrels of hot water. Water is also needed along with electricity to convert it steam. The steam is pushed by steam injections making bitumen less viscous. It is quite evident that oil sands are not practical in terms of its process. Also three-quarters of the bitumen can be recovered from the sands, leaving behind 25% as waste. With the technology in our present society, oil sands are not entirely practical in terms of efficiency; however, in the future, this may change. To reflect, there are many disadvantages associated with oil sands, especially in the way it is processed.

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

In today’s society the issues of producing energy is becoming more and more scare which, constantly posses the question, “How will energy be obtained in order to sustain future generations?” Hydraulic fracturing, informally known as fracking is believed to be an effective alternative to provide us with the energy we need to fuel tomorrow. Hydraulic fracking was first used at Texas Stanolind Oil and Gas Cooperations in 1947. However, it was not until 1949 that The Halliburton Oil Well Cementing Cooperation was given a licensee to use hydraulic fracturing. Since then a combination of two advanced methods have been introduced and incorporated (4). These methods are slick-water hydraulic fracturing and precision drilling of wells. Nevertheless,

The process of the collection of an underground fluid would not be possible without the use of hydraulic fracturing. In the Shale reserves, located about 5,000 feet underground, suffer an extremely low permeability rate. Permeability is the measure of how well a fluid flows through an absorbent material at the depth, and within such nonporous rock, the ability of fluids to travel to the well is greatly limited. Fracturing increases the area of the fluid that is exposed to porous materials and thus greatly increases production. The method of fracturing utilizes a few key components which allow for an economical extraction of resources.

The world’s energy consumption continues to increase and oil satisfies about a third of this requirement. Alberta oil sands is the 3rd largest known reserve behind Venezuela and Saudi Arabia, first and second respectively. With growing global demands and that of our neighbour, America, who imports 37% of their consumption from Canadian oil, the oil sands is the logical next-step in economic development. Developing the Alberta oil deposits has its inherent risks including both environmental and the wellbeing of land creatures including humans, but it’s not the first time humankind traded the environment and wellbeing for development. Nuclear power have shown to be devastating yet we still need it because current technology in clean energy is

Canada’s oil sands are among the largest oil reserves in the word. This is evident from the fact that Canada is ranked third for the largest oil reserve in the world, after Venezuela and Saudi Arabia (“Oil Sands,” n.d.). “Oil sand”, is a naturally occurring mixture of sand, clay, water and bitumen (Gosselin et al., 2010). It is a very dense and extremely viscous oil that must be treated before it can be used to produce usable fuels such as gasoline and diesel (Gosselin et al., 2010). In North America, high oil prices, growing demand, and diminishing oil reserves results in greater interest to mine local oil reserves. Increased production of oil generates significant economic benefits but, at the same time, the development of the oil sands

The natural resource industry continues to improve, providing the world with energy that fuels machines and keep homes warm. Drilling is the way the world has been getting oil from the ground due to the efficiency. A certain process can only work for so long and the output continues to decrease. Due to the high demands oil and natural gases, the world has turned to alternative ways retrieve these resources. Hydraulic fracturing is now the most effective way to retrieve oil and natural gas from the ground. Recently, the number of earthquakes have increased near hydraulic fracturing sites. Hydraulic fracturing is both beneficial and destructive at the same time. Several examples of seismic activity linked to fracking

This publication from the Government of Alberta’s Department of Energy tries to focus on an all-around view of the oil sands. It talks about what they are, how they work, and environmental problems and solutions. The publication is not nearly as current as some other sources, it was published late 2008. It is free from bias but tries to stay overly optimistic, something is a “challenge” not an environmental concern. Since it is a government source it is mostly objective but does try to keep the oil sands in a positive view, possibly to benefit our economy. The publication is factual, accurate, and has a limited bias

The literal meaning of this statement is Alberta contains more than expected amounts of oil sands, which the world is unaware of. The oil sands make up most of what Alberta is today; however, only a little bit about how much oil sand Alberta has is shown to the outsiders. But, there is extra oil beneath the surface of the land than what the audience expects. Notley states “There is always more than you suspect beneath the surface” (3). The intended response towards the literal meaning of this statement is that the audience would become very informed since the speaker provides information. From the reference to the statement, readers learn that there is more oil than what they suspected in the beginning.

When steam is injected to the formation a steam chamber around the well is created [3]. The pressure of the steam should be lower than the fracture pressure of the rock mass to prevent the deflection of the rock [4]. Steam injection will go on for months during which the steam chamber expands and the viscosity of the bitumen decreases. This will cause the bitumen to flow down under gravity towards the production well. The produced oil is then pumped to the surface. Surface facilities are then used to separate the water

Using supercritical 'brine', such as the water found with typical oil reservoirs or seawater (14) is the key difference and what makes this unique. Based on the cited experimental work, heavy crude can be 'hydrocracked' more efficiently to make a medium to lighter crude in a relatively simple process. It has been demonstrated that in one step, sulfur is converted to H2S for easy separation, metals can be removed (25) and the heavy organic molecules are 'hydrocracked' to shorter chain compounds with less coking than obtained with conventional coking and hydrocracking methods.