An improved fracture height containment method: artificial gel-barrier technology and its simulation

Li, Yongming; Peng, Yu; Zhao, Jinzhou; Sepehrnoori, Kamy; Yang, Yang

doi:10.1007/s12665-018-7506-3

Cited by 7 publications

(1 citation statement)

References 26 publications

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“…Hydraulic fractures tend to cross zones during fracturing and excessive vertical propagation of fractures leads to extra energy loss, which will make it hard for fractures to extend horizontally in the target zone effectively (Fig. 2) [19][20][21][22][23][24][25][26][27][28]. Under the condition of strong heterogeneous layer, the fracture propagation behavior of hydraulic fracturing not only depends on the characteristics of the target layer, but also is closely related to the mechanical properties of the upper and lower spacers.…”

Section: Introductionmentioning

confidence: 99%

Gas-Water Production of a Continental Tight-Sandstone Gas Reservoir under Different Fracturing Conditions

Liu,

Sun,

Wang

et al. 2024

FDMP

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A numerical model of hydraulic fracture propagation is introduced for a representative reservoir (Yuanba continental tight sandstone gas reservoir in Northeast Sichuan). Different parameters are considered, i.e., the interlayer stress difference, the fracturing discharge rate and the fracturing fluid viscosity. The results show that these factors affect the gas and water production by influencing the fracture size. The interlayer stress difference can effectively control the fracture height. The greater the stress difference, the smaller the dimensionless reconstruction volume of the reservoir, while the flowback rate and gas production are lower. A large displacement fracturing construction increases the fracture-forming efficiency and expands the fracture size. The larger the displacement of fracturing construction, the larger the dimensionless reconstruction volume of the reservoir, and the higher the fracture-forming efficiency of fracturing fluid, the flowback rate, and the gas production. Low viscosity fracturing fluid is suitable for long fractures, while high viscosity fracturing fluid is suitable for wide fractures. With an increase in the fracturing fluid viscosity, the dimensionless reconstruction volume and flowback rate of the reservoir display a non-monotonic behavior, however, their changes are relatively small.

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