Use of borehole imaging to improve understanding of the in-situ stress orientation of Central and Northern England and its implications for unconventional hydrocarbon resources

Kingdon, Andrew; Fellgett, Mark; Williams, John

doi:10.1016/j.marpetgeo.2016.02.012

Cited by 70 publications

(39 citation statements)

References 20 publications

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“…The far-field stresses affecting NW Europe result from the configuration of tectonic plate boundaries and associated ridge-push forces (Gölke & Coblentz 1996): however, the orientations of S Hmax observed from the IMF suggest a departure from the NW-SE orientation expected, which is observed onshore UK (Kingdon et al 2016). This suggests that the structural lineaments bounding the IMF Basin have altered the orientation of the tectonic stresses, a feature of the North Sea stress field previously suggested by Cowgill et al (1993).…”

Section: Stress Orientationsmentioning

confidence: 88%

Carbon dioxide storage in the Captain Sandstone aquifer: determination of in situ stresses and fault-stability analysis

Williams

Fellgett

Quinn

2016

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The Lower Cretaceous Captain Sandstone Member of the Inner Moray Firth has significant potential for the injection and storage of anthropogenic CO 2 in saline aquifer parts of the formation. Pre-existing faults constitute a potential risk to storage security owing to the elevated pore pressures likely to result from large-scale fluid injection. Determination of the regional in situ stresses permits mapping of the stress tensor affecting these faults. Either normal or strike-slip faulting conditions are suggested to be prevalent, with the maximum horizontal stress orientated 33°-213°. Slip-tendency analysis indicates that some fault segments are close to being critically stressed under strike-slip stress conditions, with small pore-pressure perturbations of approximately 1.5 MPa potentially causing reactivation of those faults. Greater pore-pressure increases of approximately 5 MPa would be required to reactivate optimally orientated faults under normal faulting or transitional normal/strike-slip faulting conditions at average reservoir depths. The results provide a useful indication of the fault geometries most susceptible to reactivation under current stress conditions. To account for uncertainty in principal stress magnitudes, high differential stresses have been assumed, providing conservative fault-stability estimates. Detailed geological models and data pertaining to pore pressure, rock mechanics and stress will be required to more accurately investigate fault stability.

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Section: Stress Orientationsmentioning

confidence: 88%

Carbon dioxide storage in the Captain Sandstone aquifer: determination of in situ stresses and fault-stability analysis

Williams

Fellgett

Quinn

2016

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“…This has implications for borehole stability and hydraulic fracturing operations. A strike-slip stress state implies that any induced fractures will propagate vertically and will strike in the orientation of S HMax (150.9°± 13.1°; Kingdon et al, 2016). Therefore horizontal boreholes should optimally be deviated SW-NE to maximise the surface area of those fractures.…”

Section: Discussionmentioning

confidence: 99%

“…The orientation of the UK and UKCS stress field has been studied extensively (Williams et al, 2015(Williams et al, , 2018Holford et al, 2016;Kingdon et al, 2016;Fellgett et al, 2017b)). Kingdon et al (2016) reported that the orientation of S HMax across the UK landmass is 150.9°± 13.1°, which is the result of ridge-push forces associated with the Mid Atlantic Ridge (Klein and Barr, 1986;Gölke and Coblentz, 1996).…”

Section: Orientation Of the Uk Stress Fieldmentioning

confidence: 99%

“…Kingdon et al (2016) reported that the orientation of S HMax across the UK landmass is 150.9°± 13.1°, which is the result of ridge-push forces associated with the Mid Atlantic Ridge (Klein and Barr, 1986;Gölke and Coblentz, 1996).…”

Section: Orientation Of the Uk Stress Fieldmentioning

confidence: 99%

“…The latest edition of the World Stress Map (WSM) includes all of the current openly available stress data for the UK (Heidbach et al, 2016) which has been greatly expanded by recent studies (Williams et al, 2015(Williams et al, , 2018Holford et al, 2016;Kingdon et al, 2016). Information from the WSM has previously been used to estimate stress magnitudes .…”

Section: Introductionmentioning

confidence: 99%

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