2016
DOI: 10.1002/2016jb012850
|View full text |Cite
|
Sign up to set email alerts
|

High‐stress triaxial direct‐shear fracturing of Utica shale and in situ X‐ray microtomography with permeability measurement

Abstract: The challenge of characterizing subsurface fluid flow has motivated extensive laboratory studies, yet fluid flow through rock specimens in which fractures are created and maintained at high‐stress conditions remains underinvestigated at this time. The studies of this type that do exist do not include in situ fracture geometry measurements acquired at stressed conditions, which would be beneficial for interpreting the flow behavior. Therefore, this study investigates the apparent permeability induced by direct‐… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

1
46
0

Year Published

2018
2018
2023
2023

Publication Types

Select...
4
3
1

Relationship

1
7

Authors

Journals

citations
Cited by 63 publications
(47 citation statements)
references
References 50 publications
1
46
0
Order By: Relevance
“…In nature, faults are typically segmented with step‐overs and fault jogs linking into en echelon structures (Segall & Pollard, ). In laboratory direct‐shear tests, fractures are often nonplanar and rough relative to the direct‐shear plane (Carey et al, ; Frash, Carey, Lei, et al, ; Park & Song, ; Potts et al, ). In both of these cases, fractures are coalesced along a nominal plane by the geometry of loading and the location of preexisting local weaknesses or stress concentrators (Hoek & Brown, ).…”
Section: A Mechanism For Anisotropic Shear Fracture Roughnessmentioning
confidence: 99%
See 1 more Smart Citation
“…In nature, faults are typically segmented with step‐overs and fault jogs linking into en echelon structures (Segall & Pollard, ). In laboratory direct‐shear tests, fractures are often nonplanar and rough relative to the direct‐shear plane (Carey et al, ; Frash, Carey, Lei, et al, ; Park & Song, ; Potts et al, ). In both of these cases, fractures are coalesced along a nominal plane by the geometry of loading and the location of preexisting local weaknesses or stress concentrators (Hoek & Brown, ).…”
Section: A Mechanism For Anisotropic Shear Fracture Roughnessmentioning
confidence: 99%
“…Of these, fracture direct‐shear testing is perhaps the most direct method for measuring coupled anisotropic mechanical and hydraulic parameters (Gentier et al, ; Carey, Lei, et al, ; Carey, Rougier, et al, ). Direct‐shear tests systemically produce nonplanar fracture roughness when rocks are fractured under constant normal stress (Carey et al, ; Frash, Carey, Lei, et al, ). The causes of this nonplanar roughness are thought to be related to complexity in the shear stress state, misalignment of the direct‐shear plane relative to the material's preferred fracturing plane, total amount of shearing displacement, and/or material heterogeneity and anisotropy (Park & Song, ; Potts et al, ; Frash et al, ).…”
Section: Introductionmentioning
confidence: 99%
“…Natural rock contains a large number of natural fractures that can range in scale from sub-micron to kilometers in length [1]. A thorough understanding of crack initiation, propagation, interaction, and eventual coalescence emanating from pre-existing fractures is key to characterizing geologic risk in engineering design and to improving the safety and effectiveness of subsurface hydrologic, energy, and waste disposal activities [2][3][4]. In an effort to better understand the fracture processes within brittle solids (i.e., rock-like materials), crack coalescence has been extensively studied, both experimentally and numerically [5][6][7][8][9][10][11][12][13][14][15][16].…”
Section: Introductionmentioning
confidence: 99%
“…In earlier work, we conducted 3-D FDEM analysis of split-Hopkinson pressure bar experiment on granite in which the temporal evolution of strain and tensile stress was determined including a model of strain softening following initial specimen fracture. We have also applied 2-D FDEM analysis to the interpretation of triaxial direct shear permeability experiments on shale in which we have reproduced fracture patterns [2] and analyzed stress development and stress-strain history to specimen failure [3]. In these projects, HOSS is used to interpret mechanisms of fracture formation and fluid flow observed in experiments and to provide fracture patterns for use in larger-scale discrete fracture network models.…”
Section: Introductionmentioning
confidence: 99%
“…Wireline logging tools may confidentially provide a reasonable solution Huang et al 2013) for obtaining the proper value of porosity and fluid saturation; nevertheless, in the case of permeability measurements, it may be debatable. Furthermore, core plugs are not the best candidate tools to measure the characterization of fractured and vuggy intervals (Ali Ahmadi et al 2013;Frash et al 2016;Sullivan 2007). Evaluating the appropriate properties of each layered reservoirs is considered as the underlying issues of engineering and geological perspectives.…”
Section: Introductionmentioning
confidence: 99%