Mechanical Characterization of Low Permeable Siltstone under Different Reservoir Saturation Conditions: An Experimental Study
Ayal Wanniarachchi, Ranjith Pathegama Gamage, Qiao Lyu, Samintha Perera, Hiruni Wickramarathne, Tharaka Rathnaweera
Energies | MDPI | Published : 2019
Hydro-fracturing is a common production enhancement technique used in unconventional reservoirs. However, an effective fracturing process requires a precise understanding of a formation’s in-situ strength behavior, which is mainly dependent on the formation’s in-situ stresses and fluid saturation. The aim of this study is to identify the effect of brine saturation (concentration and degree of saturation (DOS)) on the mechanical properties of one of the common unconventional reservoir rock types, siltstone. Most common type of non-destructive test: acoustic emission (AE) was used in conjunction with the destructive tests to investigate the rock properties. Unconfined compressive strength (UCS..View full abstract
Awarded by China Postdoctoral Science Foundation
This research was funded by the China Postdoctoral Science Foundation grant number 2018M630913.