Background

oil shale mining machines

Oil shale - SEG Wiki

History. Oil shale mining has not been around for a long time. In the 1970s the U.S. was already researching oil shale. However, oil shale production did not increase until later. The Energy Policy of 2005 directed the Bureau of Land Management (BLM) to lease its land for oil shale research and development. The leases were good for 10 years and could expand …

Open Pit Mining - an overview | ScienceDirect Topics

An open pit mine could recover almost 90% of the oil shale in a very thick deposit [17]. It is said that strip mining could provide an even higher recovery. Shown in Fig. 8.8 is an open-pit mine used to explain the process of mining the oil shale. The overburden is drilled and blasted loose over an area above the oil shale zone and the load is ...

Shale Oil Recovery Technology - Introduction - Description ...

Mining of Oil Shale. There are several methods of mining for oil shale, most of which are dependent on the depth of the rock below the surface and are listed below: Open Pit Mining; When the oil shale deposit is up to 30m …

The Oil Drum | An echoing Shhh, or more on mining of oil …

Using a machine to mine the oil shale poses some problems, since it is much stronger than, for example, the tar sands of Alberta, that can be scooped up with a shovel. Rather the rock has a strength that decreases with oil content down to about 13,000 psi with an oil grade of 30 gal/ton, at which point it stabilizes even as the grade increases.

(PDF) Low depth mining in Estonian oil shale deposit …

PDF | On Jan 1, 2005, Ingo Valgma and others published Low depth mining in Estonian oil shale deposit-Abbau von Ölschiefer in Estland | Find, read and cite all the research you need on ResearchGate

Possible Usage of Crushing Buckets in Oil Shale Mining

Abstract – Oil shale mining is an important cornerstone of Estonian economy. Oil shale can be used to produce cement, oil, different chemicals products and electricity. Over 80% electricity in Estonia is produced by using oil shale. There is almost 100 years of oil shale mining experience. Despite know-

The Oil Drum | Tech Talk: Conventional Mining of Oil Shale

Using a machine to mine the oil shale poses some problems, since it is much stronger than, for example, the tar sands of Alberta, that can be scooped up with a shovel. Rather the rock has a strength that goes down as oil content goes up to a value of about 13,000 psi with an oil grade of 30 gal/ton, at which point it stabilizes even as the ...

Oil Shale Mining Developments in Estonia as the bases …

Oil Shale Mining Developments in Estonia as the bases for sustainable power industry Ingo Valgma, Veiko Karu, Allan Viil, Martin Lohk Department of Mining, Tallinn University of Technology [email protected] Introduction Estonias power industry bases on its Oil shale mining. Compared to other countries the amount of

What Is Oil Shale Mining? | iMINCO

2.3 Overview of Oil shale mining (Kattel & Valgma 2005) Oil shale mining in Estonia started in 1916; it was extracted in surface mines using the opencast method. Underground mining started in 1922. Room-and-pillar mining, which is the only under-ground oil shale mining method today, was started in 1960. During years 1971-2001 in some mines

Briquette Press Machine For Pressing Oil Shale,Potash ...

Briquette Press Machine For Pressing Oil Shale,Potash Fertilizer, Find Complete Details about Briquette Press Machine For Pressing Oil Shale,Potash Fertilizer,Briquette Press Machine,Metal Dust Briquette Machine,Fluorite Powder Briquette Machine from Briquette Machines Supplier or Manufacturer-Zhengzhou Kehua Industrial Equipment Co., Ltd.

Oil shale mining (Journal Article) | OSTI.GOV

Selected topics of recent Estonian-Russian oil-shale research and development. [Present economic trends; mining of oil shale; processing of oil shale, including studies on degree of decomposition of oil shale during retorting, UTT: new retort, pyrolysis of products obtained in oil shale retorting, processing of oil shale tars, chromatographic techniques in oil shale …

Mechanical properties of oil shale-coal composite samples ...

Oil shale and coal blocks were taken from the Liangjia Coal Mine in the Longkou mining area of China. The oil shale is from the immediate roof. For convenience, both coal and oil shale samples have a same height of 50 mm in the composite samples (Φ 50 × 100 mm). Blocks are drilled into cylindrical coal and oil shale samples with a diameter of ...

Oil shale - SEG Wiki

Oil Shale Mining Developments in Estonia as the bases for sustainable power industry Ingo Valgma, Veiko Karu, Allan Viil, Martin Lohk Department of Mining, Tallinn University of Technology [email protected] Introduction Estonias power industry bases on its Oil shale mining. Compared to other countries the amount of

(PDF) Underground mining challenges for Estonian oil …

Current urgent topics for investigating, testing and developing of oil shale mining related questions are backfilling, mechanical extracting of shale, fine separation, selective separation and ...

Oil Shale and Coal Combustion inside a Fluidized ... - ISAET

The main positive sides of the large-scale use of oil shale are the security of supply for the state energy sector and the relative price independence from the world market. The negative sides are great environmental damage due to mining and use of oil shale and low calorific value of oil shale [5-7]. Classification of Oil Shale: There are varying

Environmental problems in the Estonian oil shale industry ...

The criteria of oil shale reserves are: energy rating, calorific value of the layers, thickness and depth of the seam, location, available mining technology, world price and transportation costs of the alternative fuel, oil shale mining and transporting …

Perspectives for the Mining of Oil Shale and Limestone ...

2.3 Overview of Oil shale mining (Kattel & Valgma 2005) Oil shale mining in Estonia started in 1916; it was extracted in surface mines using the opencast method. Underground mining started in 1922. Room-and-pillar mining, which is the only under-ground oil shale mining method today, was started in 1960. During years 1971-2001 in some mines

(PDF) HIGH SELECTIVE OIL SHALE MINING - ResearchGate

Detailed overview of oil shale mining will be given because in Estonia is situated one of the world's largest oil shale mining area. Comparing with …

Oil shale mining and material handling: Considerations for ...

Oil shale mining and material handling: Considerations for future research and development

(PDF) High selective oil shale mining

Abstract Oil shale mining has impact on the environment. In Estonia, 100 years of oil shale mining history provides sufficient experience and acknowledgement for …

Oil Shale Extraction | HowStuffWorks

Oil shale must be mined using either underground- or surface-mining methods. After excavation, the oil shale must undergo retorting . This is when the mined rock is exposed to the process of pyrolysis — applying extreme heat without the …

Tianhe Oil Group -

Tianhe oil group is a global leader in the fields of petroleum, natural gas, shale oil, shale gas, geothermal, mining, drilling tools, drilling tools and as one of the company, provide solutions, products and services for customers, and is committed to the company's products and services in the world. At present, business throughout the world ...

Oil Shale Extraction | HowStuffWorks

Oil shale must be mined using either underground- or surface-mining methods. After excavation, the oil shale must undergo retorting . This is when the mined …

What Is Oil Shale Mining? | iMINCO

The oil shale normally contains enough petroleum-type oil that it will burn without any processing. This is how it became known as "the rock that burns" . The term oil shale is generally regarded as applying to any sedimentary rock which contains kerogen (solid, bituminous materials).