Oil shale in Israel is widespread but an undeveloped resource, largely because of economic and technological constraints. Israeli oil shales belong to the group of Upper Cretaceous marinite deposits. Although oil-shale deposits may lie under as much as 15% of the country, only a small part of these are mineable. According to the Geological Survey of Israel, deposits that could have the biggest economic potential are located in the northern Negev, the largest being the Rotem-Yamin formation. For several decades, oil shale was used for small-scale power generation at Mishor Rotem. Several Israeli companies have proposed shale oil extraction; testing of the viability of the oil shale industry is currently being undertaken by Israel Energy Initiatives. However, as of 2011, there are no commercial oil shale operations in Israel.
Oil shale in Israel is Upper Cretaceous marinite, which kerogen is most-likely formed from marine phytoplankton. [1] [2] According to government agencies in Israel, oil shale within the nation is not at present a viable energy resource, given currently available technologies. [2] Further study and analysis are needed to determine the full potential. [3]
Oil shale deposits cover approximately 15% of Israel, mainly in the northern and central parts of the country. There are more than 30 known occurrences of oil shale. [1] The theoretical total reserves are estimated to be about 300 billion tonnes. However, only a few billion tonnes are thought to be recoverable in practical terms through open-pit mining. [2] The main resources are located in the north of the Negev desert. [3] The principle economic potential have the Mishash and the Ghareb formations in northern Negev. [1] [2] As a source for hydrocarbon production, particular interest is oil shales in Dead Sea graben area. [2] The largest deposit is Rotem-Yamin (Mishor Rotem and Mishor Yamin occurrences). [3] Other larger deposits are Sde Boker, Nahal Zin, Zenifim, Shefela-Hartuv, Oron, Nabi Musa, En Boqeq, and Yeroham. [4] According to Tsevi Minster of the Geological Survey of Israel, the largest oil shale occurrence may be Shefela. [2]
The thickness of oil shale formations vary from 30 to 450 metres (98 to 1,476 ft); maximum thickness of the Ghareb Formation in the northern Negev is 130 metres (430 ft). The oil shale in Israel is carbonate-rich consisting of 65 to 80% chalk and marl, and 2–15% clays. Its moisture is up to 20%. [1] Organic content is about 9–15% and sulfur 10–15%. [5] It yields about 40–100 litres (8.8–22.0 imp gal; 11–26 US gal) of shale oil per one metric ton of oil shale. [1] By mineral composition, Israeli oil shale is similar to oil shale in Jordan. [2]
An oil shale-fired power plant at Mishor Rotem was commissioned in 1978. In 1978–1981, a 100 kW pilot oil shale-fired power plant was operated. Between 1982 and 1986, the PAMA company, a subsidiary of the Israel Electric Corporation, established and operated a 1 MW pilot plant, which used the fluidized bed combustion technology. The 13 MW demonstration plant was completed in 1989. After 2000, the power station was operated by the Rotem Amfert, a subsidiary of Israel Chemicals. [1] The plant was closed in April, 2011. Israel Chemicals announced that it was closing the plant because it made negligible profits and because it was better to close the plant rather than cause future damage to the environment. [6]
Bustan, an Israeli non-governmental organization, reported that Israel considered purchasing oil shale processing technology from Russia's Technopromexport in 1999. The project was not implemented. Bustan also reported that Pittsburgh-based MidAtlantic Energy Group considered a project to build a 150 MW oil shale-fired power plant at Mishor Rotem. [7] Also this project was not implemented.
In 2006, A.F.S.K. Hom Tov announced a plan to build a small (1–2 tonne/h) test plant in Haifa before building a full scale production plant at Mishor Rotem. [8] [9] [10] The company envisioned bringing bitumen 80 kilometres (50 mi) by pipeline from the Ashdod refinery and returning product along the same corridor. [11] However, the plan was not implemented, and Hom Tov subsequently ceased to operate.
In July 2011, Israel Energy Initiatives, a subsidiary of Genie Energy, received a one-year extension of its three year exclusive license to explore oil shale resources on 238 square kilometres (92 sq mi) in Israel's Shfela region. [12] [13] The project is suspended. In May 2011, the Russian energy company Inter RAO announced that it had received a license to develop oil shale resources in the Negev desert. The company was said to be planning an oil extraction plant and a 150 MW oil shale-fired power plant. [14] [15] [16] The license ended on 9 April 2012 and was not renewed. [17]
Other companies having exploration licenses are Rotem Amfert Negev, Alderamin Holdings and Northwood Exploration Israel at the Mishom Rotem region, and Shapir Civil Engineering at the Oron region. [18] Northwood Exploration Israel, owned by the Casella family, operates through limited partnership Rotem Energy. Its license covers about 245 million tonnes of oil shale containing about 135 million barrels (21,500,000 cubic metres) of shale oil. It plans to build a Galoter-type oil extraction plant with annual capacity of 800,000–900,000 barrels (130,000–140,000 cubic metres) of shale oil, and a 15 MW oil shale-fired power plant. [19] [20]
Oil-shale development in Israel has caused protests among environmental organisations. In 2006, the Israeli-Palestinian NGO Bustan opposed the development by A.F.S.K. Hom Tov due to environmental impact. [21] Since the announcement in 2011 by IEI to develop shale-oil extraction in Israel, these project have been opposed by inhabitants of Adullam who formed Citizens' Committee to Save Adullam, and different environmental organizations and protest groups such as Greenpeace, Israel Union for Environmental Defense, Life and Environment, Society for the Protection of Nature in Israel, and the U.S.-based Green Zionist Alliance. [22] [23] [24] Main concerns of protesters have been increased greenhouse gas emissions, on-site storage of hazardous materials that could potentially infiltrate ground water, risk of other pollutants, drilling of multiple boreholes and altering the land for decades. [25]
Oil shale is an organic-rich fine-grained sedimentary rock containing kerogen from which liquid hydrocarbons can be produced. In addition to kerogen, general composition of oil shales constitutes inorganic substance and bitumens. Based on their deposition environment, oil shales are classified as marine, lacustrine and terrestrial oil shales. Oil shales differ from oil-bearing shales, shale deposits that contain petroleum that is sometimes produced from drilled wells. Examples of oil-bearing shales are the Bakken Formation, Pierre Shale, Niobrara Formation, and Eagle Ford Formation. Accordingly, shale oil produced from oil shale should not be confused with tight oil, which is also frequently called shale oil.
A.F.S.K. Hom Tov was a spin-off of the A.F.S.K. Industries Group located in Haifa, Israel. In 2006, the company claimed that it had patented technology for converting oil shale to shale oil.
Brazil is the 10th largest energy consumer in the world and the largest in South America. At the same time, it is an important oil and gas producer in the region and the world's second largest ethanol fuel producer. The government agencies responsible for energy policy are the Ministry of Mines and Energy (MME), the National Council for Energy Policy (CNPE), the National Agency of Petroleum, Natural Gas and Biofuels (ANP) and the National Agency of Electricity (ANEEL). State-owned companies Petrobras and Eletrobras are the major players in Brazil's energy sector, as well as Latin America's.
Oil shale reserves refers to oil shale resources that are economically recoverable under current economic conditions and technological abilities. Oil shale deposits range from small presently economically unrecoverable to large potentially recoverable resources. Defining oil shale reserves is difficult, as the chemical composition of different oil shales, as well as their kerogen content and extraction technologies, vary significantly. The economic feasibility of oil shale extraction is highly dependent on the price of conventional oil; if the price of crude oil per barrel is less than the production price per barrel of oil shale, it is uneconomic.
The oil shale industry is an industry of mining and processing of oil shale—a fine-grained sedimentary rock, containing significant amounts of kerogen, from which liquid hydrocarbons can be manufactured. The industry has developed in Brazil, China, Estonia and to some extent in Germany and Russia. Several other countries are currently conducting research on their oil shale reserves and production methods to improve efficiency and recovery. Estonia accounted for about 70% of the world's oil shale production in a study published in 2005.
Oil shale economics deals with the economic feasibility of oil shale extraction and processing. Although usually oil shale economics is understood as shale oil extraction economics, the wider approach evaluates usage of oil shale as a whole, including for the oil-shale-fired power generation and production of by-products during retorting or shale oil upgrading processes.
Environmental impact of the oil shale industry includes the consideration of issues such as land use, waste management, and water and air pollution caused by the extraction and processing of oil shale. Surface mining of oil shale deposits causes the usual environmental impacts of open-pit mining. In addition, the combustion and thermal processing generate waste material, which must be disposed of, and harmful atmospheric emissions, including carbon dioxide, a major greenhouse gas. Experimental in-situ conversion processes and carbon capture and storage technologies may reduce some of these concerns in future, but may raise others, such as the pollution of groundwater.
The history of the oil shale industry started in ancient times. The modern industrial use of oil shale for oil extraction dates to the mid-19th century and started growing just before World War I because of the mass production of automobiles and trucks and the supposed shortage of gasoline for transportation needs. Between the World Wars oil shale projects were begun in several countries.
Kukersite is a light-brown marine type oil shale of Ordovician age. It is found in the Baltic Oil Shale Basin in Estonia and North-West Russia. It is of the lowest Upper Ordovician formation, formed some 460 million years ago. It was named after the German name of the Kukruse Manor in the north-east of Estonia by the Russian paleobotanist Mikhail Zalessky in 1917. Some minor kukersite resources occur in sedimentary basins of Michigan, Illinois, Wisconsin, North Dakota, and Oklahoma in North America and in the Amadeus and Canning basins of Australia.
Queensland Energy Resources Limited (QERL) is an Australian oil shale mining and shale oil extraction company with the headquarters in Brisbane. It is the developer of the Stuart (Yarwun) and McFarlane oil shale projects.
Oil shale in China is an important source of unconventional oil. A total Chinese oil shale resource amounts of 720 billion tonnes, located in 80 deposits of 47 oil shale basins. This is equal to 48 billion tonnes of shale oil. At the same time there are speculations that the actual resource may even exceed the oil shale resource of the United States.
Oil shale in Jordan represents a significant resource. Oil shale deposits in Jordan underlie more than 60% of Jordanian territory. The total resources amounts to 31 billion tonnes of oil shale.
There are two kinds of oil shale in Estonia, both of which are sedimentary rocks laid down during the Ordovician geologic period. Graptolitic argillite is the larger oil shale resource, but, because its organic matter content is relatively low, it is not used industrially. The other is kukersite, which has been mined for more than a hundred years. Kukersite deposits in Estonia account for 1% of global oil shale deposits.
The Galoter process is a shale oil extraction technology for the production of shale oil, a type of synthetic crude oil. In this process, the oil shale is decomposed into shale oil, oil shale gas, and spent residue. Decomposition is caused by mixing raw oil shale with hot oil shale ash generated by the combustion of carbonaceous residue (semi-coke) in the spent residue. The process was developed in the 1950s, and it is used commercially for shale oil production in Estonia. There are projects for further development of this technology and expansion of its usage, e.g., in Jordan and the USA.
Oil shale in Belarus is a large, but undeveloped energy resource. While the reserves have been known for decades, they remain unexplored due to oil shale's high ash and sulphur content, low heat of combustion and high cost of extraction and processing. However, depletion of conventional petroleum and natural gas reserves, as well as a high degree of reliance on imported hydrocarbons from Russia, have recently renewed interest in oil shale exploration in the country.
The Mishor Rotem Power Station is a former oil shale-fired power station and current natural gas-fired power station in Mishor Rotem, Israel. It is operated by OPC Rotem, a subsidiary of the Israel Corporation (80%) and Veolia Environnement (20%).
Genie Energy Ltd. is an American energy company headquartered in Newark, New Jersey. It is a holding company comprising Genie Retail Energy, Genie Retail Energy International, Genie Energy Services, and Genie Energy Oil and Gas. Michael Stein is the Chief Executive Officer, Genie Energy Ltd.
Energy in Jordan describes energy and electricity production, consumption and import in Jordan. Jordan is among the highest in the world in dependency on foreign energy sources, with 96% of the country's energy needs coming from imported oil and natural gas from neighboring Middle Eastern countries. This complete reliance on foreign oil imports consumes a significant amount of Jordan's GDP. This led the country to plan investments of $15 billion in renewable and nuclear energy. To further address these problems, the National Energy Strategy for 2007-2020 was created which projects to boost reliance on domestic energy sources from 4 per cent to 40 per cent by the end of the decade.
Oil shale in Morocco represents a significant potential resource. The ten known oil shale deposits in Morocco contain over 53.381 billion barrels of shale oil. Although Moroccan oil shale has been studied since the 1930s and several pilot plants have extracted shale oil from the local formations, commercial extraction was not underway as of 2011.
There are oil shale deposits in Australia which range from small deposits to large reserves. Deposits, varying by their age and origin, are located in about a third of eastern Australia. In 2012, the demonstrated oil shale reserves were estimated at 58 billion tonnes. The easiest to recover deposits are located in Queensland.