A Dynamic Model For Fluid Flow In A Borehole Fracture
Name
1988.6 Tang_Cheng.pdf
Size
413.74 KB
Format
Adobe PDF
Checksum (MD5)
bb82d74708687ba1eecf0ed9c8fe50f4
Author(s)
Tang, X. M.
Cheng, C. H.
Date Issued
1988
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;1988-06
Abstract
The attenuation of Stoneley waves by a borehole fracture are closely related to fluid
flow in the fracture. We consider the dynamic response of a viscous fluid in a horizontal
fracture to the oscillating pressure excitation of Stoneley waves at the fracture opening. A dynamic model has been developed to describe the fluid motion in the fracture. This model relates both viscous shear effects at the fracture surface and the acoustic wave propagation in the fracture fluid. The dynamic conductivity is derived to characterize the fluid conduction in the fracture. This model is applied to study Stoneley wave attenuation across a borehole fracture, and is found to agree well with laboratory fracture modeling data.
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