On Theory of Bottomhole Zone Echoscopy in Low-Permeability Formation Subject to Hydraulic Fracturing

A mathematical model is built describing the evolution of a pulse signal in a well at a longitudinal or a transverse fracture in the bottomhole section. It is assumed that the signal is sent from the wellhead with a wavelength exceeding the well diameter and the length of the open section of the wel...

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Published inMechanics of solids Vol. 58; no. 7; pp. 2703 - 2713
Main Authors Bashmakov, R. A., Galiakbarova, E. V., Khakimova, Z. R., Shagapov, V. Sh
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2023
Springer Nature B.V
Subjects
Classical Mechanics
Hydraulic fracturing
Physics
Physics and Astronomy
Quality assessment
Wellheads
hydraulic fracturing
reflection coefficient
harmonic waves
oil well
wave phase
pulse signal
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Summary:A mathematical model is built describing the evolution of a pulse signal in a well at a longitudinal or a transverse fracture in the bottomhole section. It is assumed that the signal is sent from the wellhead with a wavelength exceeding the well diameter and the length of the open section of the well. The behavior of the echo of the pulse signal returning to the wellhead makes it possible to assess the quality of hydraulic fracturing. The results of numerical calculations for a bell-shaped pulse are presented. It is shown that in diagnosing fractures, water is preferable to oil as a fluid in which the signal propagates.
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ISSN:0025-6544
1934-7936
DOI:10.3103/S0025654423070038