Conductivity of narrow fractures filled with a proppant monolayer

Khanna, Aditya; Kotousov, Andrei; Sobey, James; Weller, Paul F.

doi:10.1016/j.petrol.2012.11.016

Cited by 70 publications

(29 citation statements)

References 14 publications

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“…4. This figure is the modification of the previously published figure [20]. It shows the normalised permeability (or permeability correction factor) of the fracture system with retained particles versus aspect ratio b ¼ 2rs l .…”

Section: Optimal Particle Placementmentioning

confidence: 93%

“…It shows the normalised permeability (or permeability correction factor) of the fracture system with retained particles versus aspect ratio b ¼ 2rs l . The diagram is calculated by computational fluid dynamics software and Hertz's theory for contact surface-particle deformation presented [20]. The continuous curves correspond to the constant values of dimensionless effective stress, e r :…”

Section: Optimal Particle Placementmentioning

confidence: 99%

“…4) using the mathematical model with assumptions of constant fracture aperture and regular square particle placement [5,20]. However, different permeability value is expected for real coal cores.…”

Section: Matching the Test Data: Permeability Shape Factormentioning

confidence: 99%

See 2 more Smart Citations

Stimulation of coal seam permeability by micro-sized graded proppant placement using selective fluid properties

Keshavarz

Badalyan

Carageorgos

et al. 2015

Fuel

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Section: Optimal Particle Placementmentioning

confidence: 93%

Section: Optimal Particle Placementmentioning

confidence: 99%

See 1 more Smart Citation

Stimulation of coal seam permeability by micro-sized graded proppant placement using selective fluid properties

Keshavarz

Badalyan

Carageorgos

et al. 2015

Fuel

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“…However, the fractures tend to close after a hydraulic fracturing operation and thus suitable proppants have to be selected, blend in a certain ratio with the fracturing fluid, fill the fractures, and keep them open after fluid injection [2]. Therefore estimation of the residual openings [46,104,105] or the permeability of the fracture openings [106], which are filled with proppants, as well as the optimisation of the used proppants [107] is of great significance for EGR/EOR applications. A number of studies have focused on the transport of suspended proppant particles within the fracture and the interaction between the formation and the proppant.…”

Section: Developments On Modelling Of Hydraulic Fracturing and Enginementioning

confidence: 99%

Recent Developments in Multiscale and Multiphase Modelling of the Hydraulic Fracturing Process

Sheng

Sousani

Ingham

et al. 2015

Mathematical Problems in Engineering

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Recently hydraulic fracturing of rocks has received much attention not only for its economic importance but also for its potential environmental impact. The hydraulically fracturing technique has been widely used in the oil (EOR) and gas (EGR) industries, especially in the USA, to extract more oil/gas through the deep rock formations. Also there have been increasing interests in utilising the hydraulic fracturing technique in geological storage of CO 2 in recent years. In all cases, the design and implementation of the hydraulic fracturing process play a central role, highlighting the significance of research and development of this technique. However, the uncertainty behind the fracking mechanism has triggered public debates regarding the possible effect of this technique on human health and the environment. This has presented new challenges in the study of the hydraulic fracturing process. This paper describes the hydraulic fracturing mechanism and provides an overview of past and recent developments of the research performed towards better understandings of the hydraulic fracturing and its potential impacts, with particular emphasis on the development of modelling techniques and their implementation on the hydraulic fracturing.

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“…6 Difficult proppants transport and reducing fracture conductivity might be caused with increasing ASG. 7,8 More recently, ultra-lightweight (ULW) materials have been used as proppants since they reduced the required fluid velocity for proppant transport within the fracture, [9][10][11] which provided a greater number of fracture area to increase the fracture conductivity. Representative of such proppants are significantly lighter deformable particles.…”

Section: Introductionmentioning

confidence: 99%

Preparation of heat resisting poly(methyl methacrylate)/graphite composite microspheres used as ultra‐lightweight proppants

Chen

Wang

Yan

et al. 2015

J of Applied Polymer Sci

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Ultra-lightweight heat resisting poly(methyl methacrylate) (PMMA)/graphite microspheres were successfully prepared via in situ suspension polymerization. The Fourier transform infrared and X-ray powder diffraction results confirmed the successful preparation of the composite microspheres. Field emission scanning electron microscope analysis illustrated that the graphite particles were dispersed in microspheres and the PMMA/graphite composite microspheres had good sphericity and roundness. Furthermore, density analysis indicated that the apparent density of composites microspheres was about 1.055-1.135g/cm 3 which was suitable for the transmission with water carrying. The results from thermodynamic test revealed that the thermal stability of the composite was significantly improved with increasing graphite content, which could be used as ultra-lightweight proppant in deep underground. In addition, the crushing rate decreased to 0.5% with graphite ratio of 3.0% at the pressure of 69 MPa. Therefore, PMMA/Graphite composite microspheres exhibit a promising application in petroleum or gas exploitation as water carrying fracturing proppants.

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Conductivity of narrow fractures filled with a proppant monolayer

Cited by 70 publications

References 14 publications

Stimulation of coal seam permeability by micro-sized graded proppant placement using selective fluid properties

Stimulation of coal seam permeability by micro-sized graded proppant placement using selective fluid properties

Recent Developments in Multiscale and Multiphase Modelling of the Hydraulic Fracturing Process

Preparation of heat resisting poly(methyl methacrylate)/graphite composite microspheres used as ultra‐lightweight proppants

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