Proppant transport study in fractures with intersections

Tong, Songyang; Mohanty, Kishore K.

doi:10.1016/j.fuel.2016.04.144

Cited by 189 publications

(70 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We validated this model by comparing our simulation result and experiment result of Tong and Mohanty . The effect of slurry leak‐off is not taken into consideration in the simulation because no leak‐off exists in the experiment.…”

Section: Model Validationmentioning

confidence: 98%

“…The rate of proppant bed build‐up can be determined by

\frac{d H_{b}}{d t} = \frac{C V_{s}}{C_{\max}}

where V s is the settling velocity of the proppant at a volume fraction, m/s; C max is saturation concentration, dimensionless, which means the max proppant concentration in the proppant bed. In this article, C max is set as 0.63, which was also used in the investigation by Tong and Mohanty …”

Section: Model Development and Solutionmentioning

confidence: 99%

“…After that, several proppant transport experiments were conducted to investigate the effects of fluids and proppant properties on the proppant distribution in a fracture . In recent years, many experiments have been conducted to investigate proppant transport in complex fractures . All the experiment can help to understand the proppant transport mechanisms.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new model for simulating particle transport in a low‐viscosity fluid for fluid‐driven fracturing

Song

et al. 2018

AIChE Journal

View full text Add to dashboard Cite

Fluid-driven fracture (i.e., Hydraulic fracturing) is an important way to stimulate the well productivity in the development of unconventional reservoirs. A low-viscosity fluid called slickwater is widely used in the unconventional fracturing. It is a big challenge to simulate the particle (or proppant) transport in the low-viscosity fluid in a field-scale fracture. A new model to simulate particle transport in the low-viscosity fluid in a field-scale fracture is developed. First, a new parameter is defined, called the rate of proppant bed wash-out, by which we incorporated the mechanism of proppant bed wash-out into Eulerian-Eulerian proppant transport model. Second, we proposed a novel way to consider the effect of proppant settling on the proppant concentration in the upper layer (or suspending layer) to accurately simulate the proppant transport. Additionally, a dimension reduction strategy was used to make the model quickly solved. Our simulation results were compared with published experimental data and they were consistent. After validation, the effect of fluid viscosity, injection rate, fracture height, and proppant concentration on the proppant distribution in a fracture is investigated. This study provides a new model to simulate particle transport. Meanwhile, it gives critical insights into understanding particle transport in the fieldscale fracture.

show abstract

Section: Model Validationmentioning

confidence: 98%

“…The rate of proppant bed build‐up can be determined by

\frac{d H_{b}}{d t} = \frac{C V_{s}}{C_{\max}}

Section: Model Development and Solutionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A new model for simulating particle transport in a low‐viscosity fluid for fluid‐driven fracturing

Song

et al. 2018

AIChE Journal

View full text Add to dashboard Cite

show abstract

“…Tong and Mohanty studied the proppant transport in fractures with different types of bypass angle, considering the effects of shear rate and proppant size. They revealed that proppant in secondary fractures increases with the increase in the shear rate and the reduction in the bypass angle . Wen et al .…”

Section: Introductionmentioning

confidence: 99%

“…They revealed that proppant in secondary fractures increases with the increase in the shear rate and the reduction in the bypass angle. 13 Wen et al used a self-designed complex fracture simulation device to study proppant migration and the settling law in a complicated fracture network. 10 They pointed out that the fracturing fluid's carryover effect plays a major role in the process of sandbank formation in secondary fractures near the wellbore, while the gravity effect dominates in secondary fractures far away from the wellbore.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of supercritical CO₂ and proppant transport in different geometrical fractures

Wang

Yang

et al. 2018

Greenhouse Gases

View full text Add to dashboard Cite

Supercritical CO2 (SC‐CO2) fracturing, as a kind of waterless fracturing method, is an effective treatment in the unconventional oil and gas industry. Due to its characteristic lower viscosity, supercritical CO2 fracturing is likely to create thin and long fractures that connect pre‐existing natural fractures and generate complex fractures. It is therefore very challenging to predict how far supercritical CO2 carrying proppant can go and how proppant will be transported in natural fractures, when natural fractures are contacted or penetrated by induced fractures. In this paper, proppant transport with supercritical CO2 in fractures was analyzed using the computational fluid dynamics method. Three types of fractures – planar fractures, T‐shape fractures and crossing‐shape fractures – were modeled. Five parametrical cases were studied using the T‐shape and crossing‐shape models. Results show that, for T‐shape fracture cases, a turbulent flow regime might develop at a fracture junction, which can make proppant propagate to natural fractures. For crossing‐shape fractures, a turbulent flow takes place behind the fracture junction, which causes a little sand dune to form downstream of the induced fracture. With the reduction in the width of the natural fracture, the height of the sand bank at the thinner natural fracture is higher than that at the wider natural fracture. Using a proppant whose density and diameter are respectively less than 1540 kg/m3 and 0.25 mm, as well as a sand‐carrying fluid whose sand ratio ranges from 8% to 10% and injection rate exceeds 2 kg/s, is beneficial to prop natural fractures. Moreover, the larger the intersection angle of the crossing‐shape fracture is, the more difficult it is for proppant to enter natural fractures. This study reveals the influence of fracture geometry on proppant transport with SC‐CO2. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd.

show abstract

Effect of Ca²⁺ on viscosity and microstructure of water‐soluble triblock terpolymer used as thicker in the hydraulic fracturing

Chen

Wang

Shen

et al. 2019

J of Applied Polymer Sci

View full text Add to dashboard Cite

Ca 2+ tolerance of water-soluble polyacrylamide is a key problem in application fields. It is urgent to make the mechanism of between the polyacrylamide and Ca 2+ clear. A terpolymer polyacrylamides including the sulfonate group with different monomer concentrations is synthesized. The effect of the CaCl 2 concentration on the rheological properties is measured by a rheological rheometer. The zeta potential of the copolymer solution is obtained by a zeta potentiometer to learn about the electrical characteristics of the copolymers in solution. The microcosmic shape of the copolymer aqueous solution is investigated by a laser particle analyzer and an environmental scanning electron microscope. The results show that more sulfonate groups on the molecule can enhance the salt tolerance of the polyacrylamide. Sulfonate groups can weaken the effect of Ca 2+ on the copolymer through the formation of complexes, whereas the self-aggregation process of the copolymer cannot be stopped at high Ca 2+ concentrations. This study provides theoretical guidance to elucidate the influencing rules and mechanism of calcium salt on the polyacrylamide containing a sulfonate group, which can be helpful for polyacrylamide modification and can improve the application of polyacrylamide under the condition of higher salt concentration.

show abstract

Proppant transport study in fractures with intersections

Cited by 189 publications

References 14 publications

A new model for simulating particle transport in a low‐viscosity fluid for fluid‐driven fracturing

A new model for simulating particle transport in a low‐viscosity fluid for fluid‐driven fracturing

Numerical study of supercritical CO₂ and proppant transport in different geometrical fractures

Effect of Ca²⁺ on viscosity and microstructure of water‐soluble triblock terpolymer used as thicker in the hydraulic fracturing

Contact Info

Product

Resources

About

Proppant transport study in fractures with intersections

Cited by 189 publications

References 14 publications

A new model for simulating particle transport in a low‐viscosity fluid for fluid‐driven fracturing

A new model for simulating particle transport in a low‐viscosity fluid for fluid‐driven fracturing

Numerical study of supercritical CO2 and proppant transport in different geometrical fractures

Effect of Ca2+ on viscosity and microstructure of water‐soluble triblock terpolymer used as thicker in the hydraulic fracturing

Contact Info

Product

Resources

About

Numerical study of supercritical CO₂ and proppant transport in different geometrical fractures

Effect of Ca²⁺ on viscosity and microstructure of water‐soluble triblock terpolymer used as thicker in the hydraulic fracturing