shale crushing method

CHAPTER THREE Oil Shale Technologies

Oil shale can be mined using one of two methods: underground mining, most likely using the room-and-pillar method, or surface mining. In general, surface …

Greenhouse Gas Emissions during Oil Shale Crushing …

Organic-rich oil shale in sedimentary basins is a good gas source rock, the GHG in which will be released into the atmosphere during crushing to afect climate …

Frontiers | Experimental Study on Fracturing Fracture …

1 Introduction. As one of the unconventional oil and gas resources, shale gas reservoir has the characteristics of low porosity, low permeability, high stress, and so on (Tan et al., 2017; Lei et al., 2018; Zeng 2020; Ao et al., 2021), so the natural productivity of shale gas reservoir is very low.Horizontal well fracturing technology is an important and …

Oil Shale Processing, Chemistry, and Technology | SpringerLink

In this pyrolysis or retorting process, the organic matter is converted to oil (termed retort oil, shale oil, shale crude oil), gas (typically called retort gas), and solid …

A new theoretical method to calculate shale fracture …

In this method, the proppant size, packing, sorting, crushing, grain rearrangement and grain embedment are taken into account. A flowchart describing the conductivity calculation procedure is shown in Fig. 10. Download: Download full-size image; Fig.10. Workflow for the calculation of shale fracture conductivity.

Greenhouse Gas Emissions during Oil Shale Crushing …

Province. Using the analysis methods of geochemistry, mineralogy, and petrophysical properties, the GHG release characteristics in the oil shale residual gas obtained by the crushing method were studied. This study aims to (1) quantitatively calculate and compare the GHG content in the residual gas released after crushing of …

Shale gas production costs: Historical developments and …

Key parameters and evaluation methods of shale gas show that it is not possible to guarantee the commercial and economic development of shale gas by sorting out geological sweet spots only according to technical indicators. ... such as proppant crushing and proppant embedment, resulting in a reduction in hydrocarbon production. …

(PDF) Advancements and Environmental Implications in Oil …

The review further delves into the chemical aspects of oil shale retorting and pyrolysis, highlighting the critical role of variables such as retorting temperature, …

Investigation of the breaking manifestations of bedded shale impacted

Experiments on high-pressure abrasive water jet (AWJ) crushing shale were conducted with major consideration of bedding planes.The dynamic strain of the shale sample was obtained, and the shale-breaking manifestations and their influencing factors were analyzed by means of both qualitative and quantitative methods.

Effect of Shale Sample Particle Size on Pore Structure …

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 …

Review of oil shale in-situ conversion technology

In-situ artificial crushing and retorting technology calls for techniques of constructing artificial works underground, crushing the oil shale into small pieces, …

Occurrence and influence of residual gas released by crush methods …

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 (Fig. 8a, b). This …

A Numerical Simulation Approach for Shale Fracture …

Hydraulic fracturing has been a must for efficient and economical production from shale reservoirs with ultralow permeability [].Once fracking is performed; hydraulic fractures take their shape and connect with natural fractures in shale, forming a complex fracture network that dominates fluid flow inside the reservoir [2–4].This fracture network consists of …

Greenhouse Gas Emissions during Oil Shale Crushing and Its …

Using the analysis methods of geochemistry, mineralogy, and petrophysical properties, the GHG release characteristics in the oil shale residual gas obtained by the …

Influence of structural damage on evaluation of microscopic …

1. Introduction. With the successful development of shale gas in North America and the optimization of the global energy structure, oil-gas resources in shale reservoirs have gradually become the focus of exploration and development in many countries (Desbois et al., 2011; Zou et al., 2012; Wang et al., 2017).Marine continental …

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES

Shale Av. Co Max. Co Min. Co Range No. of samples 181.7 324.0 48.8 275.2 26 214.1 358.6 104.8 253.8 16 174.4 251.0 84.5 166.5 24 ... indirect methods such as the splitting tension test (also called Brazilian or diametral ... avoid crushing that could throw doubts as to the mechanism of failure in the test sample. Strips

Fracture identification in shale reservoir using a deep learning method …

Conversely, in shale formations, low-angle shear fractures result in a more noticeable increase in AC (Fig. 7 b). For shale bedding fractures, curve responses are similar to structural fractures, with decreased AC and DEN (Fig. 7 c). While these well logging response characteristics are ideally developed in the target layers of the study …

Oil Shale

Oil shale is a type of sedimentary rock that is rich in kerogen. Kerogen is a part of rock that breaks down and releases hydrocarbons when heated. Hydrocarbons are substances made entirely of hydrogen and carbon. Petroleum and natural gas are probably the most familiar . hydrocarbons.The hydrocarbons in oil shale can be used as an …

Fang SHI | Associate professor | Ph.D in solid mechanics

（eXtended Finite Element Method,XFEM）（Finite Element Method,FEM）,、 ...

New Calculation Method and Application of Gas Loss From Coring Shale

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 ...

XFEM-based numerical modeling of well performance

Request PDF | XFEM-based numerical modeling of well performance considering proppant transport, embedment, crushing and rock creep in shale gas reservoirs | Predicting the production rate and ...

Nitrogen isotopes of released gas from rock crushing and …

The origin and formation mechanism of N 2-rich Lower Cambrian shale gas remain ambiguous, posing serious exploration risks in the Lower Cambrian shale gas in South China.In this study, high-vacuum-pulsed electromagnetic and helium-filled ball-mill rock-crushing methods were developed to measure the released gas contents, …

XFEM-based numerical modeling of well performance …

caused by proppant deformation, embedment, crushing, and viscoelasticity of the reservoir. In order to obtain more in-depth knowledge of how these factors influence the gas production, a novel approach is proposed to simulate the processes of both hydraulic fracturing and gas production using the extended finite element method (XFEM).

CHAPTER THREE Oil Shale Technologies

Oil shale can be mined using one of two methods: underground mining, most likely using the room-and-pillar method, or surface mining. In general, surface mining is ... Surface retorting involves crushing the mined oil shale and then retorting it at about 900 to 1,000 degrees F (Figure 3.1). The vessel in which this heating occurs is called

XFEM-based numerical modeling of well performance

The problem formulation and solution strategy including the governing equations, the extended finite element method, the mathematical description of the propped fracture, as well as mechanical models of proppant crushing and shale creep are presented in Section 2.

Geology 1305 Exam 4 Review Flashcards

The original method of processing oil shale involved crushing the rock and then heating it. What environmental problem did this create that the new method (heating the rock in place) seeks to avoid? Disposing of large volumes of waste rock. Gas hydrates represent a potential source of natural gas. Which of the following is the primary reason ...

environmental geology chapters 14-16 Flashcards

An optimization method for equivalent bulk permeability of gas shale

Shale is likely to crumble along microfractures or bedding planes during crushing, and the crushed samples should contain fewer microfractures than the whole rock without crushing. The second kind of method is more likely to obtain the flow characteristic controlled by matrix pores.

An Overview of Oil Shale Exteraction and Processing

Total resources of a selected group of oil-shale deposits in 33 countries is estimated at 411 billion tons of in-place shale oil which is equivalent to 2.9 trillion U.S. barrels of shale oil.

Oil shale

In situ processing differs from aboveground processing in that retorting to produce oil and gas takes place underground. No in situ processes are in use on a commercial scale, but several companies have …