Study on the prediction method of thixotropy of water-in-oil waxy crude oil emulsions

Guo, Liping; Han, Xue; Feng, Tao; Liu, Yang; Liu, Baojun

doi:10.1080/10916466.2022.2092496

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…For a Newtonian fluid, the rheological curve of shear stress against shear rate is a straight line starting from the origin. The swelling fluid also has a rheological curve: the fluid flows when an external force is applied to it, and the viscosity increases with the increase in shear rate [31][32][33]. The various rheological curves for different types of fluids are shown in Figure 11.…”

Section: Rheological Characteristics Of Debris Flow Slurrymentioning

confidence: 99%

Study on the Effect of Ore-Drawing Shear Factor on Underground Debris Flow in the Block Caving Method

Niu,

Zhe,

Sun

et al. 2023

Water

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The shear factor of ore drawing is an important factor affecting the formation of underground debris flows. The aim of this study was to investigate the effect of the mining shear factor on underground debris flows in natural caving. The research background was the underground debris flow in the Plan copper mine, and we analyzed the characteristics of the slurry material structure of the underground debris flow, as well as the influence of the ore-drawing shear factor on the formation mechanism of the underground debris flow. The results showed that the slurry of the underground debris flow in the Plan mine is both a pseudoplastic and thixotropic fluid. Shearing force induced in drawing deforms the slurry and decreases its viscosity with the increase in shear rate and time. The shear force produced by the flow of ore particles first produces shear action on the paste in the shear boundary region of the ore drawing, reducing the paste viscosity while increasing its fluidity. Consequently, the “activation” makes the paste flowable, which flows along with the bulk ore flowing through the drawing mouth. The continuous ore-drawing process continuously shears the new moraine slurry in the ore-drawing channel and continuously “activates” the moraine slurry in the ore-drawing channel. Finally, destructive underground debris flow accident of a certain scale occurs. To our knowledge, this study thoroughly investigated the effect of the ore-drawing shear factor on the formation mechanism of underground debris flows, which not only broadens the research field of debris flow but also covers the deficiency of systematic research on underground debris flows, providing theoretical guidance for the prevention and control of underground debris flows.

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Section: Rheological Characteristics Of Debris Flow Slurrymentioning

confidence: 99%

Study on the Effect of Ore-Drawing Shear Factor on Underground Debris Flow in the Block Caving Method

Niu,

Zhe,

Sun

et al. 2023

Water

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show abstract

“…Newton fluid on the rheological curve, shear stress and shear rate is a straight line through the origin of the relationship. The swelling fluid is another type of rheological curve, which can flow with an external force, and the viscosity increases with the increase of shear rate [16][17][18]. The trend of rheological curves for different types of fluids is shown in Figure 10.…”

Section: Rheological Characteristics Of Debris Flow Slurrymentioning

confidence: 99%

Study on Effect of Drawing Shear Factor on Underground Debris Flow in Natural Caving Method

Niu¹,

Kepeng²,

Sun³

2023

Preprint

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The shear factor of ore drawing is one of the important factors affecting the formation of underground debris flow, and it has an important contribution to the formation of underground debris flow. The purpose of this paper is to study the effect of mining shear factor on underground debris flow in natural caving method. Based on the research background of the underground debris flow in Plan copper mine, this paper analyzes the characteristics of the slurry material structure of the underground debris flow, the influence of drawing shear factor on formation mechanism of underground debris flow is analyzed. The results show that the slurry of the underground debris flow in Plan mine is not only a pseudoplastic fluid but also a thixotropic fluid. It is indicated that once there is shearing force in drawing, it will deform, and its viscosity will decrease with the increase of shear rate and time. It is considered that the shear force produced by the flow of ore particles first produces shear action on the paste in the shear boundary region of ore drawing, it is reduced in viscosity and increased in fluidity, so that its “Activation” and then become a flowable paste, along with the bulk ore flow through the mouth. The continuous ore drawing process will continuously shear the new moraine slurry in the ore drawing channel and continuously “Activate” the moraine slurry in the ore drawing channel, finally, a certain scale and destructive down-hole debris flow accident. This paper is the first to study the effect of ore drawing shear factor on the formation mechanism of underground debris flow. It not only broadens the research field of debris flow, but also fills up the deficiency of systematic research on underground debris flow, and provides theoretical guidance for the prevention and control of underground debris flow.

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Study on the prediction method of thixotropy of water-in-oil waxy crude oil emulsions

Cited by 2 publications

References 28 publications

Study on the Effect of Ore-Drawing Shear Factor on Underground Debris Flow in the Block Caving Method

Study on the Effect of Ore-Drawing Shear Factor on Underground Debris Flow in the Block Caving Method

Study on Effect of Drawing Shear Factor on Underground Debris Flow in Natural Caving Method

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