Quantitative analysis of slip-induced dilation with application to fault seal

Wilkins, Scott J.; Naruk, Stephen J.

doi:10.1306/08010605177

Cited by 32 publications

(15 citation statements)

References 75 publications

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“…However, active faulting in the brittle upper crust is associated with the generation of dilatant strains and consequently increased porosity & permeability. Whether leakage occurs due to critical stressing of faults or fault zone fractures (Barton et al, 1995), slip-induced dilation (Wilkins and Naruk, 2007) or is intimately linked to the build-up and release of geopressured fluids (e.g. Sibson, 1992Sibson, , 1996Sleep and Blanpied, 1992) is uncertain, but documentation of up-dip, fault-related fluid flow in seismically active terranes demonstrate a clear link between active faulting and vertical fluid flow.…”

Section: Discussionmentioning

confidence: 99%

“…In summary, poor trap integrity may be mitigated in dynamic cases where traps access active and prolific charge (e.g. Cusiana Field, Columbia; Eugene Island, Gulf of Mexico; Wilkins and Naruk, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…The mechanisms and rates associated with leakage are debatable (e.g. Revil and Cathles, 2002;Wilkins and Naruk, 2007). However, the clear positive correlation between tectonic activity and leakage is not in debate (e.g.…”

Section: Background Geologymentioning

confidence: 99%

See 2 more Smart Citations

Automating conceptual models to easily assess trap integrity and oil preservation risks associated with fault reactivation

Dyt

Langhi

Bailey

2012

Marine and Petroleum Geology

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Automating conceptual models to easily assess trap integrity and oil preservation risks associated with fault reactivation

Dyt

Langhi

Bailey

2012

Marine and Petroleum Geology

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“…Although in this process the controlled fracturing of the reservoir is desirable, such stress changes may induce irreversible effects into the rock strata, thus causing possible reactivation of the existing faults. Moreover, the effects of active faults on the process of leakage are an area where more research has to be performed; scientists generally suggest that the existence of seismogenic faults affects the permeability structure of the zone enhancing fluid transport [32]. In the process of hydraulic fracturing, the latter may lead to possible leakage of liquefied CO 2 [33] or flowback water, thus resulting in potential hazards.…”

Section: Hazards In Hydraulic Fracturingmentioning

confidence: 99%

Recent Developments in Multiscale and Multiphase Modelling of the Hydraulic Fracturing Process

Sheng

Sousani

Ingham

et al. 2015

Mathematical Problems in Engineering

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Recently hydraulic fracturing of rocks has received much attention not only for its economic importance but also for its potential environmental impact. The hydraulically fracturing technique has been widely used in the oil (EOR) and gas (EGR) industries, especially in the USA, to extract more oil/gas through the deep rock formations. Also there have been increasing interests in utilising the hydraulic fracturing technique in geological storage of CO 2 in recent years. In all cases, the design and implementation of the hydraulic fracturing process play a central role, highlighting the significance of research and development of this technique. However, the uncertainty behind the fracking mechanism has triggered public debates regarding the possible effect of this technique on human health and the environment. This has presented new challenges in the study of the hydraulic fracturing process. This paper describes the hydraulic fracturing mechanism and provides an overview of past and recent developments of the research performed towards better understandings of the hydraulic fracturing and its potential impacts, with particular emphasis on the development of modelling techniques and their implementation on the hydraulic fracturing.

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“…However the whole process requires a considerable pressure in order to introduce liquefied CO 2 underground, thus causing redistribution of the in-situ effective stresses within the reservoir. Although in EOR fracturing of the oil reservoir is desirable, such stress changes may induce irreversibility to the rock strata, thus causing possible reactivation of the existing faults leading to possible leakage of CO 2 (IEAGHG 2011b;Wilkins and Naruk 2007). Therefore valid estimates of the mechanical behaviour of the rock material under intense injection conditions are crucial to the efficient planning and operation of petroleum reservoirs.…”

Section: Introductionmentioning

confidence: 99%

Modelling of hydraulic fracturing process by coupled discrete element and fluid dynamic methods

et al. 2014

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A three-dimensional model is presented and used to reproduce the laboratory hydraulic fracturing test performed on a thick-walled hollow cylinder limestone sample. This work aims to investigate the implications of the fluid flow on the behaviour of the micro structure of the rock sample, including the material strength, its elastic constants and the initialisation and propagation of fractures. The replication of the laboratory test conditions has been performed based on the coupled Discrete Element Method and Computational Fluid Dynamics scheme. The numerical results are in good agreement with the experimental data, both qualitatively and quantitatively. The developed model closely validates the overall behaviour of the laboratory sample, providing a realistic overview of the cracking propagation towards total collapse as well as complying with Lame's theory for thick walled cylinders. This research aims to provide some insight into designing an accurate DEM model of a fracturing rock that can be used to predict its geo-mechanical behaviour during Enhanced Oil Recovery (EOR) applications.

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Quantitative analysis of slip-induced dilation with application to fault seal

Cited by 32 publications

References 75 publications

Automating conceptual models to easily assess trap integrity and oil preservation risks associated with fault reactivation

Automating conceptual models to easily assess trap integrity and oil preservation risks associated with fault reactivation

Recent Developments in Multiscale and Multiphase Modelling of the Hydraulic Fracturing Process

Modelling of hydraulic fracturing process by coupled discrete element and fluid dynamic methods

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