shale crushing method

Evaluation of blast fragmentation effects on jaw crusher ...

2021-9-21 · The fragmentation rate and particle size distribution of the muckpile after blasting have important influences on the performance of subsequent mining activities such as loading, hauling, crushing, grinding, and the overall costs of the mine. Drilling and blasting are important steps in the chain of mining processes, and its results affect the efficiency of downstream …

8. STRENGTH OF SOILS AND ROCKS

2009-2-23 · and friction angle. The values of the strength parameters c and φ depend upon the method of test as well as upon the soil type. Some of the commonly used methods of shear strength testing will be discussed in later sections of this chapter. Typical strength values for sands, silts and for rocks are given in Tables 8.1 and 8.2.

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2017-9-22 · A practical method for production data analysis from multistage fractured horizontal wells in shale gas reservoirs Fuel 2016 SCI Variable-Permeability Well-Testing Models and Pressure Response in Low-Permeability Reservoirs with non-Darcy Flow

(PDF) Shale Permeability Measurements on Plugs and …

Tinni et al. [27] and Heller et al. [28] used the UCPIS method, Akkutlu and Fathi, [24] used the DCPRS method to test the permeability of shale cores. The shape of the pressure curves shown in ...

(PDF) Utilization of waste rock from oil shale mining | Tarmo …

A method and apparatus for the recovery of bitumen oils from oil shale. The method comprises crushing the oil shale to a predetermined particle size and mixing with an organic solvent to form a slurry. The slurry is then subjected to supercritical temperatures and pressures whereby the kerogen materials break down into bitumen oils which solubilize in the solvent.

Total porosity measurement in gas shales by the water ...

2019-8-31 · (GRI) that involves crushing a rock and aggressive pretreatment. The objective of this study is to develop an alternative method of measuring total porosity in gas shales. A porosity measurement using a liquid saturation and immersion technique with deionized water was adopted and modified for such applica-tions.

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Do You Know Coal Gangue Processing Machines

 · Do You Know Coal Gangue Processing Machines. The supply of coal gangue: Coal gangue would be the common term of solid waste materials coming from coal mine construction, coal production method widely typical in the construction, development diving, coal mining and coal washing process with exhaust carbon rock. Three aspects of coal gangue source.

Environmental Sampling Of Paraho Oil Shale Retort …

Shale will generally be mined by conventional room and pillar methods. Crushing is necessary before retorting. Shale is crushed in two stages—primary crushing at the mine and secondary crushing at the retort site. THE Central to the process is the Paraho vertical kiln shown in cutaway isometric in figure 1, It consists of a vertical vessel ...

Petrophysical and mineralogical evaluation of shale gas ...

2014-7-31 · 1.7 Roseneath and Murteree Shale Geological and Geochemical Characteristics 23 1.8 Methodology 23 1.8.1 QEMSCAN, XRD, Micro and Nano CT-Scanning, FIB/SEM 1.8.2 Helium Porosimetry 1.8.3 Mercury Injection Capillary Pressure (MICP) Techniques 1.8.4 Core Crushing Method/Liquid Pyknometry 1.8.5 Log Interpretation 25 27 28 28 28

Occurrence and influence of residual gas released by crush ...

2020-12-1 · Fig. 8 deduces the possible influencing mechanisms of residual gas released by the crushing method on the pore structure. After the crushing process, the shale was excessively crushed and refined to 100−200 mesh, the residual gas released and some of the ink bottle-shaped pores and inclusions type pores are released . This process is ...

Effect of Shale Sample Particle Size on Pore Structure ...

2021-9-3 · Shale sample B7191 at the depth of 2191.82m (7191ft) from Blakely #1 core in Wise County of Texas was used in this study. Barnett Shale was a marine shelf deposit, and its thickness is from 61 to 305m across the Fort Worth Basin. Barnett Shale can be divided into three sublayers: upper Bar-nett Shale, Forestburg limestone, and lower Barnett ...

Crain''s Petrophysical Handbook | Core Porosity

a. connect two cells of known volume, Vcell1 and Vcell2. b. close valve between cells, apply pressure P1 to cell 1. c. place dry core sample in cell 2, seal and evacuate cell 2. d. open valve and measure pressure P2. Boyle''s Law apparatus to …

11.25 Clay Processing

2015-9-10 · rification point below 1100°C (2000°F). Shale is a laminated sedimentary rock that is formed by the consolidation of clay, mud, or silt. Common clay and shale are composed mainly of illite or chlorite, but also may contain kaolin and montmorillonite. Most domestic clay is mined by open-pit methods using various types of equipment, including

Experimental Investigation of the Dependence of …

Crushing and grinding of carbonaceous shale samples is likely to enhance the accessibility of pores and embedded organic matter as compared to the intact rock. This may lead to an overestimation of the total (volume and sorptive) gas storage capacity. In order to investigate the importance of these effects we have measured unconfined apparent grain densities (helium …

US4737267A

A method and apparatus for the recovery of bitumen oils from oil shale. The method comprises crushing the oil shale to a predetermined particle size and mixing with an organic solvent to form a slurry. The slurry is then subjected to supercritical temperatures and pressures whereby the kerogen materials break down into bitumen oils which solubilize in the solvent.

Utilising selective extraction, crushing and separation of ...

2015-8-25 · methods for selective extraction of limestone, oil shale and phosphate rock have been selective blasting, bulldozer and excavator ripping and cutting by surface miners. Selective crushing has been achieved by axle crusher and separation by jigging. All methods have shown promising results for changing the waste rock balance in the product.

small scale oil shale crusher plant

2015-4-11 · Oil shale is separated in dressing plants out of big ROM (u003e25 mm) pieces. .... The main method of beneficiation is crushing the softer part of oil shale, i.e. ... A Review on Technologies for Oil Shale Surface Retort Apr 10, 2012 ... is suitable for small plant processing oil shale with low oil ... suitable for large scale shale …

Experimental Study on the Pore Shape Damage of Shale ...

2021-2-4 · Using crushed shale samples to obtain pore information from the gas adsorption experiments is a widely used method. Previous studies have evaluated the impact of the particle size on the pore size distribution, but potential pore shape damage during the crushing process has not been thoroughly investigated.

Factors Affecting Hydraulically Fractured Well Performance ...

2012-12-12 · Horizontal wells with multistage hydraulic fracturing technique are the stimulation method of choice and have been successful in shale gas reservoirs. However, the fundamental science and engineering of the process are yet to be fully understood and hence the protocol that needs to be followed in the stimulation process needs to be optimized.

An Assessment of Oil Shale Technologies (Part 7 of 18)

2007-3-19 · the generic types of retorting methods Summary Oil shale contains a solid hydrocarbon called kerogen that when heated (retorted) yields combusti-ble gases, crude shale oil, and a solid residue called ... Figure 19.–Oil Shale Utilization Mining & Crushing or In situ retort Wastes & b preparation byproducts 7 Treated Re-Use ~ % * Reinfection m ...

Laboratory characterization of the porosity and ...

2018-5-22 · the laboratory method most commonly used by industry to assess the porosity and permeability of shale samples – namely the crushed shale method. In doing so, it attempts to identify causes of discrepancies between laboratories and …

Utilization of Waste Rock from Oil Shale Mining

2012-3-27 · crushing, a method that liberates weak oil shale particles from hard limestone waste rock. The first crushing and screening plant with two stage impact crushers was installed in "Aidu" open cast. The productivity of the plant in 1996 was 350 tonnes of aggregate per day, yield of the aggregate from waste rock 40% and

New Calculation Method and Application of Gas Loss From ...

2020-5-26 · On the basis of this study, the onsite desorption gas measuring device and testing process for coring shale gas wells are designed, the time-varying shale desorption gas is obtained, and the residual gas of shale is measured by the crushing method. The calculation formula of shale gas content is obtained by fitting the test data, the shale gas ...

Shale Crushing Line manufacturers & suppliers

Sourcing Guide for Shale Crushing Line: China manufacturing industries are full of strong and consistent exporters. We are here to bring together China factories that supply manuf

Review of oil shale in-situ conversion technology ...

2020-7-1 · 1. Introduction. Oil shale is a highly ash-rich sedimentary rock enriched with combustible organic matter, .The majority of the organic matter in oil shale is kerogen,, which is insoluble in common organic solvents, .The kerogen component is about 3% to 15% in oil shale, and consist of complex organic compound in high molecular weight,, that is rich in aliphatic …

Study in deep shale gas well to prevent shoulder …

2020-9-22 · However, the overall geological conditions of shale gas in China are complex and the buried depth is too large. For deep shale gas wells with vertical depth of more than 3500 m, problems such as shoulder protruding, tearing, crushing and insufficient sealing

2020-11-6 · ,, XIAO YingJian,,, . 2021. ., 36(2): 576-584, doi: 10.6038/pg2021EE0460. DOU LiangBin, YANG HaoJie, XIAO YingJian, GAO Hui, LI ...