Influence of Pore Fluid Pressure Diffusion on Hydraulic Fracturing.

Turuntaev, S. B.; Zenchenko, E. V.; Trimonova, Mariia; Zenchenko, Petr; Baryshnikov, N. A.; Lukina, Anna; Новикова, Е. В.

doi:10.1002/essoar.10501370.1

Cited by 2 publications

(6 citation statements)

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“…The main experiments were carried out on a triaxial loading unit developed at IDG RAS and described in detail in several publications [19,21,22]. A brief description of the installation is given below.…”

Section: Description Of Experimental Installationsmentioning

confidence: 99%

“…The samples have the shape of disks, with diameters of 430 mm and heights of 72 mm; the installation allows for sample loading along three independent axes, creating pore pressure gradients, measuring the fluid pore pressure at several points, registering acoustic emission, and probing the sample with ultrasonic pulses. Several results of experiments conducted at this facility are given in the publications cited in [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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Study of the Interaction of a Hydraulic Fracture with a Natural Fracture in a Laboratory Experiment Based on Ultrasonic Transmission Monitoring

Zenchenko,

Turuntaev,

Nachev

et al. 2024

Energies

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This paper presents the results of experiments on the study of a hydraulic fracture’s interaction with a preexisting fracture. A distinctive feature of the conducted experiments is the ability to use ultrasonic transmitting monitoring to measure the fracture propagation and opening simultaneously with the pore pressure measurements at several points of the porous saturated sample. It allows us to obtain the pressure distributions at various experiment stages and to establish a relation between the pore pressure distribution and hydraulic fracture propagation and its interaction with macroscopic natural fractures. The possibilities of active ultrasonic monitoring have been expanded due to preliminary calibration experiments, which make it possible to estimate the fracture opening via attenuation of ultrasonic pulses. The experiment demonstrated the most complex scenario of fracture interactions when a hydraulic fracture intersected with a natural fracture and the natural fracture in the vicinity of the intersection was also opened. The additional complications arise from fracture arrangement: the hydrofracture was normal with respect to the base plane, while the natural fracture was slanted. This led to gradual growth of the intersection zone as the hydrofracture propagated. The experiments show that the natural fracture limited the fracture’s propagation. This was caused by the hydraulic fracturing fluid leaking into the natural fracture; thus, both the hydraulic fracture and natural fracture compose a united hydraulic system.

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Section: Description Of Experimental Installationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of the Interaction of a Hydraulic Fracture with a Natural Fracture in a Laboratory Experiment Based on Ultrasonic Transmission Monitoring

Zenchenko,

Turuntaev,

Nachev

et al. 2024

Energies

View full text Add to dashboard Cite

show abstract

“…The main experiments were carried out on a triaxial loading unit developed at IDG RAS and described in detail in several publications [12,14,15]. A brief description of the installation is given below.…”

Section: Description Of Experimental Installationsmentioning

confidence: 99%

“…The permeability of the model material was 1.1•10 -15 m 2 . The issues of similarity and adequacy of the model material used and experimental parameters in relation to hydraulic fracturing in the field were considered in [14,15].…”

Section: Description Of Experimental Installationsmentioning

confidence: 99%

“…The samples have the shape of disks with a diameter of 430 mm and a height of 72 mm; the installation allows the sample loading along three independent axes, creating pore pressure gradients, measuring the fluid pore pressure at several points, registering acoustic emission, probing the sample with ultrasonic pulses. Several results of experiments conducted at this facility are given in publications [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Study of the Interaction of a Hydraulic Fracture with a Natural Fracture in Laboratory Experiment Based on Ultrasonic Transmission Monitoring

Zenchenko,

Turuntaev,

Nachev

et al. 2023

Preprint

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This paper presents the results of experiments on the study of a hydraulic fracture interaction with a preliminary created fracture that simulates a natural fracture. A distinctive feature of the conducted experiments is the ability to use an ultrasonic sounding to measure the fracture propagation and opening simultaneously with the fluid pore pressure measurements at the several points of the porous saturated sample. It allows to obtain the pressure distributions at various experiment stages and to establish a relation between the pore pressure distribution and the hydraulic fracture propagation and its interaction with macroscopic natural fracture. The possibilities of active ultrasonic monitoring have been expanded due to preliminary calibration experiments, which make it possible to estimate the fracture opening value by attenuation of ultrasonic pulses. The experiments show that the fracture propagation is limited by the natural fracture. This is caused by the hydraulic fracturing fluid leaks into the natural fracture, so both hydraulic fracture and natural fracture compose united hydraulic system.

show abstract

Influence of Pore Fluid Pressure Diffusion on Hydraulic Fracturing.

Cited by 2 publications

References 0 publications

Study of the Interaction of a Hydraulic Fracture with a Natural Fracture in a Laboratory Experiment Based on Ultrasonic Transmission Monitoring

Study of the Interaction of a Hydraulic Fracture with a Natural Fracture in a Laboratory Experiment Based on Ultrasonic Transmission Monitoring

Study of the Interaction of a Hydraulic Fracture with a Natural Fracture in Laboratory Experiment Based on Ultrasonic Transmission Monitoring

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