Experimental study on micron-sized sand particles transport in the water flow path of hydrates production wellbore

Chen, Ye; Sun, Xiaofeng; Yan, Tie; Yao, Di; Duan, Ruixi

doi:10.1016/j.jngse.2019.103088

Cited by 24 publications

(11 citation statements)

References 35 publications

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“…For the development of argillaceous‐silt NGH formation, the main feature is the continuous and small size of flowing sand from the NGH formation into the wellbore based on the moderate sand control principle. The produced sand from the argillaceous‐silt NGH formation can be determined by the regression relationship provided by Chen et al 58 The sand coming into the wellbore can be calculated with the following Equation ():

{\rm{e}}={c}_{0}{x}_{1}^{{c}_{1}}{c}_{2}^{{x}_{2}}{x}_{3}^{{c}_{3}}{(1+{x}_{4})}^{{c}_{4}},

where e is the sand concentration ratio, dimensionless;

{x}_{1}

is the sand particle size,

{\rm{\mu }}

{x}_{2}

is the flow rate, m 3 /h;

{x}_{3}

is the volumetric concentration of the sand production, dimensionless;

{x}_{4}

is the wellbore inclination, degree;

{c}_{1}

{c}_{2}

{c}_{3}

, and

{c}_{4}

are the regression parameters, dimensionless.…”

Section: Mathematical Modelmentioning

confidence: 99%

“…For the development of argillaceous-silt NGH formation, the main feature is the continuous and small size of flowing sand from the NGH formation into the wellbore based on the moderate sand control principle. The produced sand from the argillaceous-silt NGH formation can be determined by the regression relationship provided by Chen et al 58 The sand coming into the wellbore can be calculated with the following Equation (17):…”

Section: Mathematical Modelmentioning

confidence: 99%

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Heat transfer study in the exploitation of argillaceous‐silt natural gas hydrate reservoirs

Jiang

Song

Liu

et al. 2022

Energy Science & Engineering

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The paper investigates the heat transfer in the exploitation of offshore argillaceous-silt natural gas hydrate reservoirs considering sand control. The temperature prediction model is established in this investigation. The coupled pressure-temperature model of the flowing fluid inside the wellbore is also presented. The sand control for argillaceous-silt natural gas hydrate reservoirs mainly brings two effects into the temperature and pressure profiles simulation, including the moderate sand control and the Joule-Thompson effect. The moderate sand control is reflected by the volume and particle size of produced sand into the wellbore in the mathematical derivation. The Joule-Thompson is considered in the model due to the small diameter of sand control screens. The experiment is designed to measure the pressure drop caused by various mesh diameters of sand control screens. Subsequently, the regression relationship between the pressure drop and the mesh diameter is concluded to calculate the temperature change at the sand control screen. The simulation of heat transfer helps to analyze secondary hydrate formation risk in the wellbore. The proposed model identifies the high-risk location of the secondary hydrate formation. The sand control effect and well geometry effect are discussed quantitatively. The strict sand control in the argillaceous-silt natural gas hydrate (NGH) sediment exploitation reduces the risk of secondary hydrate formation significantly; however, it also has a negative effect on natural gas production. To balance the sand control and the prevention of secondary hydrate formation risk, it is suggested to install the heating electrode in the high-risk location to ensure flow safety with acceptable sand control precision. The heat provided by heat electrodes is calculated by the model presented in this paper. The model can be used to determine the proper arrangement of heat electrodes. The paper also describes the secondary hydrate formation by adjusting the well geometry. The formation depth of the NGH reservoir and the sea interval should be considered in the risk analysis of

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{\rm{e}}={c}_{0}{x}_{1}^{{c}_{1}}{c}_{2}^{{x}_{2}}{x}_{3}^{{c}_{3}}{(1+{x}_{4})}^{{c}_{4}},

where e is the sand concentration ratio, dimensionless;

{x}_{1}

is the sand particle size,

{\rm{\mu }}

{x}_{2}

is the flow rate, m 3 /h;

{x}_{3}

is the volumetric concentration of the sand production, dimensionless;

{x}_{4}

is the wellbore inclination, degree;

{c}_{1}

{c}_{2}

{c}_{3}

, and

{c}_{4}

are the regression parameters, dimensionless.…”

Section: Mathematical Modelmentioning

confidence: 99%

Section: Mathematical Modelmentioning

confidence: 99%

Heat transfer study in the exploitation of argillaceous‐silt natural gas hydrate reservoirs

Jiang

Song

Liu

et al. 2022

Energy Science & Engineering

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“…Hundreds of experiments were conducted by Chen et al 107 to study the effect of flow rate, the volumetric concentration of sand, sand-diameter, and hole inclination on the transport and settlement of micron-sized sand particles. The experimental results indicated that a higher flow rate, smaller sand-diameter, and smaller production rate would mitigate sand settlement within the wellbore.…”

Section: Recent Advances In Sand Control Systemmentioning

confidence: 99%

Sand Production Management during Marine Natural Gas Hydrate Exploitation: Review and an Innovative Solution

Chen

et al. 2021

Energy Fuels

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Natural gas hydrate (NGH) is widely distributed worldwide with great reserves and is generally accepted as a promising alternative energy source. However, sustainable, efficient, and safe NGH development has been proven to be restricted by a series of geomechanical problems, among which sand production has become prominent and attention-catching. This review systematically summarizes the up-to-date literatures and reports our latest work to improve the fundamental understandings of the sand production issues in NGH development. It is noted that sand production is defined as a systematic “issue”, rather than a “problem” in this paper, considering both the adverse and favorable influences of sand production on continuous gas production from hydrate-bearing sediment (HBS). Several challenges and insightful suggestions are put forward for future research from the viewpoint of the sand production management system (SMS). Furthermore, an innovative method for unlocking conflicts between sand production and gas extraction in muddy HBS is proposed, namely, the gravel-huff to clay-puff replacement (GCR) technique. The outlook and perspectives of this technique are presented, as well as the key challenges to be resolved.

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“…For example, it was still unclear about the effect of the flowing artificial fluid on the thermal properties of NGH reservoirs. 127,175 However, the heat transfer, determined by thermal properties, had a direct effect on sand production (shown in Figure 2). Therefore, the changing geological conditions' effects on sand production still need further and detailed investigation.…”

Section: Geologicalconditionandeffectmentioning

confidence: 99%

State‐of‐the‐art brief review on sanding problem of offshore natural gas hydrates sediments

Song

Xiong

et al. 2021

Energy Science & Engineering

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Experimental study on micron-sized sand particles transport in the water flow path of hydrates production wellbore

Cited by 24 publications

References 35 publications

Heat transfer study in the exploitation of argillaceous‐silt natural gas hydrate reservoirs

Heat transfer study in the exploitation of argillaceous‐silt natural gas hydrate reservoirs

Sand Production Management during Marine Natural Gas Hydrate Exploitation: Review and an Innovative Solution

State‐of‐the‐art brief review on sanding problem of offshore natural gas hydrates sediments

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