To clarify the risk posed to groundwater in oil shale in situ mining areas, we examine five leached pollutants: Fe, Mn, Cr, sulfate, and ammonia nitrogen. Potential groundwater contents of these five pollutants were evaluated using an improved Nemero comprehensive index method and a health risk assessment method. The results show that, …
Since 2013, open-pit mining has been discontinued by the local government, and the Maoming oil shale mining area has progressively moved into a stage of ecological restoration and control except for the problems of illicit mining. From 2013 to 2016, a series of ecological restoration projects were initiated in the Maoming mining area (Figure 3b,d).
Oil shale mining can take one of two forms, namely surface mining or underground mining. Underground mining mainly uses the room and pillar method, whilst surface mining involves either open pit ...
To get to the ore bodies, which are between 30 and 70 metres thick and buried at depths of 15 to 35 metres, mineable areas are cleared of trees or marsh.
According to occurrence space and mining conditions, shale oil is divided into matrix-type shale oil, fracture-type shale oil and interbed-type shale oil (Ning, 2014; Chen, 2017). Matrix-type shale oil mainly refers to oil in nanopores of organic matter and clay minerals, making it difficult to produce. This type of shale oil is profitable only ...
The vast majority of these deposits, and more than 70% of all oil shale resources within the entire Green River Formation, lie beneath public land controlled by federal agencies such as the Bureau of Land Management and the US Forest Service.Estimates of the oil contained in the tristate Shale Country area range from 1.2 to 1.8 trillion barrels, with between 500 billion and 1 trillion …
Oil shale, a carbonate rock, is rich in organic sediments called "kerogen," which can be converted into high-quality aviation fuel, diesel, naphtha, and other high-value by-products (Chen et al., 2011; World Energy Council, 2016, Biglarbigi et al., 2008).The resources of oil shale are estimated to be as high as 719.937 billion tons, with an estimate of technically recoverable …
The Oil, Gas & Mining category encompasses machinery and equipment used in the extraction and processing of natural resources. This includes drilling rigs, excavators, bulldozers, and …
Surface mining of oil shale can lead to extensive land disturbance and habitat disruption. Large-scale mining operations require clearing vast areas of land, displacing wildlife and altering natural landscapes. Moreover, the construction of infrastructure such as roads and processing facilities further exacerbates environmental impacts ...
The Oil shale mining technology can be divided into traditional surface distillation technology and underground in-situ mining technology [8]. The primary way to develop oil shale is surface distillation. This method is to mine, transport, process, and refine oil shale from the surface or underground. However, this mode is only applicable to ...
Currently, there are four main mining methods of oil shale: open cast mining, underground mining, in-situ mining, and borehole hydraulic mining. Among these four mining methods, borehole hydraulic mining technology is …
Oil shale is a kind of unconventional energy resource with abundant reserves, but its exploitation has a continuous negative impact on the environment, which has hindered the research and ...
The extraction and utilization of shale oil have been the subject of intense political debate, making it a controversial topic. This unconventional oil has been utilized since the early 14th century and has gained popularity ... This process obviates the need for drilling pits or mining. Instead, the oil shales are subjected to underground ...
Extracting and processing shale oil is an expensive and difficult process. Coal, petroleum, and natural gas are less expensive to extract. Australia, Brazil, Switzerland, Sweden, Spain, and South Africa began mining oil shale in the 19th and 20th centuries, but they all stopped production by the 1960s. The U.S. ceased production in the early 1980s.
The Songliao Basin is an important petroliferous basin in China and is also rich in oil shale resources. Besides the oil shale resources have been identified as 277.49 × 10 8 t, and potential resources are 2595.06 × 10 8 t (Liu et al., 2009b).The Nong'an oil shale ore-bearing area is located in the southeastern uplift belt of the southern Songliao Basin.
Processing equipment and references in oil shale screening, oil shale classifying and oil shale dewatering. Learn more.
The township, along with the shale oil mining complex, was established in 1906. The Newnes Oil Shale Mine produced low-grade oil. Set within beautiful mountain scenery, a collection of shanties, huts and buildings for the mining process were built. Today the ruins of the site are all that remains. Operational costs and the availability of lower ...
Mining and Processing Oil Shales for Energy and … 7.1 Environmental and Health Effects of Oil Shale Mining and Processing. Oil shale mining presents possibly one of the greatest environmental problems of any resource, due to the extent of the deposit to be mined to obtain a few drops of oil, and the mode of mining.
Numerical study on in-situ mining oil shale by high-temperature steam injection in long-distance horizontal wells. October 2024; Geomechanics and Geophysics for Geo-Energy and Geo-Resources 10(1)
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We serve mining and oil and gas companies throughout our entire region as well as those operating specifically in the Marcellus & Utica shale formation regions. When it comes to …
A wealth of papers have shown that the oil shale deposited in different basins are various in grade (such as oil yield and thickness) in China (Jia et al., 2013;Sun ...
Depletion rates in the oil sands are in the order of 4% per year. That means the average mine life in the oil sands typically ranges from 20 to 40 years.That number is astounding considering that conventional wells can deplete as much as 20-40% per year, requiring constant drilling and on-going exploration for new reserves.
Often compatible with FLC, DP 600 series, and similar shale shakers, pyramid screens are widely applied in oil, gas, and mining operations that require robust, high-volume solids control. 3. Steel Frame Shale Shaker …
2.3 History of Oil Shale Mining in Estonia and Russia 2.4 Development of Mining Technology in Estonia and Russia 2.5 Surface Mining in Estonia 2.6. Underground Mining in Estonia and Russia 2.7. Separation of Oil Shale from Waste 2.8. Economics and Organization 2.9. Future Trends of Oil Shale Mining in Estonia 3. Oil Shale Mining in China
The great demand for oil shale resource development and the corresponding threats to the environment have resulted in the urgent need to assess the impact of oil shale in situ mining on the environment. In this paper, …
The experiment of the prototype shows that the novel design of sliding sleeve is promising in the shale oil and gas mining equipment application. Section snippets Design requirement. Due to the specific downhole working conditions, the whole sliding sleeve should be compact. Nine opening and closing strokes of the sliding sleeve need to be ...
Shale shakers are intensive vibrating devices. At the first stage of mud separation, they utilize a motor to generate vibrations. Acting as a sieve, the vibrating action pushes the drilling mud through a wire cloth screen. Drilling mud that filters through the shaker screen is moved into a …
Oil shale is different than shale oil. Shale oil (and gas) occurs in rocks where the oil is as a liquid between sediment grains. On the other hand, oil shale does not contain liquid petroleum and is actually the rock marlstone which contains kerogen, a precursor to oil. The kerogen must be heated to more than 750 degrees to convert it into a ...
Shale Oil Toxicity. S.T. Dydek, in Encyclopedia of Toxicology (Third Edition), 2014 Ecotoxicology. Accidental spills of shale oil during extraction and processing could pose a danger to native fish species and aquatic food chain organisms. Concentrations of the water-soluble fractions of shale oil that were lethal to 50% of Cutthroat trout (a species indigenous to shale oil-producing areas …