Downward migration of shearing in jointed rock during hydraulic injections

Pine, R.J.; Batchelor, A.S.

doi:10.1016/0148-9062(84)92681-0

Cited by 280 publications

(102 citation statements)

References 19 publications

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“…5); cloud density, together with location uncertainty of small magnitude events, made it impractical to select the causative faults based on adjacent seismicity (see hypocentral location discussions in Cesca et al, 2014;ICGC, 2015;Gaite et al, 2016). We use the critical pore pressure (CPP) criterion (e.g., Pine and Batchelor, 1984) in order to select each NP on the grounds that the NPs with lower CPP are better oriented for fault slip in relation to the background stress. Using the MohrCoulomb failure criterion as described in Eq.…”

Section: Nodal Plane Selectionmentioning

confidence: 99%

Earthquake static stress transfer in the 2013 Gulf of Valencia (Spain) seismic sequence

et al. 2017

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Abstract. On 24 September 2013, an M l 3.6 earthquake struck in the Gulf of Valencia (Spain) near the Mediterranean coast of Castelló, roughly 1 week after gas injections conducted in the area to develop underground gas storage had been halted. The event, felt by the nearby population, led to a sequence build-up of felt events which reached a maximum of M l 4.3 on 2 October.Here, we study the role of static stress transfer as an earthquake-triggering mechanism during the main phase of the sequence, as expressed by the eight felt events. By means of the Coulomb failure function, cumulative static stress changes are quantified on fault planes derived from focal mechanism solutions (which act as both source and receiver faults) and on the previously mapped structures in the area (acting only as stress receivers in our modeling). Results suggest that static stress transfer played a destabilizing role and point towards an SE-dipping structure underlying the reservoir (or various with analogous geometry) that was most likely activated during the sequence. One of the previously mapped faults could be geometrically compatible, yet our study supports deeper sources. Based on this approach, the influence of the main events in the occurrence of future and potentially damaging earthquakes in the area would not be significant.

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Section: Nodal Plane Selectionmentioning

confidence: 99%

Earthquake static stress transfer in the 2013 Gulf of Valencia (Spain) seismic sequence

et al. 2017

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“…The region activated by hydraulic stimulation often appears to be an ellipsoid with the major axis almost coinciding with the direction of maximum compressive stress. The vertical effective stress gradient determines the migration direction of the stimulation (upward or downward) [28]. The fracture mechanical properties, i.e.…”

Section: Modelling Of Governing Factorsmentioning

confidence: 99%

Brief Review of Numerical Simulation Applied to Solve Oil Extraction Problems

Onofre-Ramos¹,

Castañeda²,

Austria-Aguilar³

et al. 2015

IJG

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In the last decades, the numerical analysis has abridged the time and cost of oil extractive operations, and thus their implementation has been promoted so much that today is used to solve a large number of phenomena that occur during the extraction of hydrocarbons, not only economizing the operation, but also shedding light to the phenomenon, and helping to have a better understanding. Nevertheless in spite of the success of the applications of numerical simulations, it has been until today, looking for their optimization, because the discretization methods of the domain and the model are through meshes, which require modifying the physics of the problem so that this matches the numerical method, and not in backwards.

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“…Since the early 1980s, research at various sites confirmed that shearing rather than tensile fracturing is the dominant process (Pine & Batchelor, 1984;Cornet, 1987;Baria et al, 1999).…”

Section: General Conceptsmentioning

confidence: 99%