Direct observation of transient fluid pressure surge and resonance in a fluid-filled fracture

PreviousNext No AccessSecond International Meeting for Applied Geoscience & EnergyDirect observation of transient fluid pressure surge and resonance in a fluid-filled fractureAuthors: Yuesu JinNikolay DyaurYingcai ZhengYuesu Jin University of Houston Search for more papers by this author, Nikolay Dyaur University of Houston Search for more papers by this author, and Yingcai Zheng University of Houston Search for more papers by this authorhttps://doi.org/10.1190/image2022-3751029.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract We report lab results that a fluid-filled fracture can amplify the pressure carried by an incident seismic wave. We built a fracture model and placed our newly designed pressure sensors (Xfrac-H) inside the fracture to directly measure the fluid pressure in the fracture during wave propagation. We also built a new low frequency source (Xfrac-S) to excite the sinusoidal acoustic wave in water to study the frequency effect. We observed that the pressure inside the fracture could be amplified up to 25 times larger compared with that of the incident wave. We call this phenomenon the transient pressure surge. The amplification factor depends on frequency and fracture geometry and aperture. It is also possible that the locally elevated pressure can drive fluid flow in the subsurface. Therefore, our finding may be important in both triggered/induced seismicity and fluid permeability control using waves. Keywords: physical modeling, low-frequency experiment, pressure surge effect, fluid-filled fracture, hydrofracturingPermalink: https://doi.org/10.1190/image2022-3751029.1FiguresReferencesRelatedDetails Second International Meeting for Applied Geoscience & EnergyISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2022 Pages: 3694 publication data© 2022 Published in electronic format with permission by the Society of Exploration Geophysicists and the American Association of Petroleum GeologistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 15 Aug 2022 CITATION INFORMATION Yuesu Jin, Nikolay Dyaur, and Yingcai Zheng, (2022), "Direct observation of transient fluid pressure surge and resonance in a fluid-filled fracture," SEG Technical Program Expanded Abstracts : 1586-1590. https://doi.org/10.1190/image2022-3751029.1 Plain-Language Summary Keywordsphysical modelinglow-frequency experimentpressure surge effectfluid-filled fracturehydrofracturingPDF DownloadLoading ...