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Keywords: microseismic event
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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0349
... magnitude characteristics of microseismicity are dominated by those of underlying fractures, while microseismic event rate is under the combined effects of local natural fracture abundance and mining intensity. On this basis, a data-driven yet physics-based forecasting methodology was established for LTCC...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2069
... stimulation microseismic event HFT fracture national laboratory Lawrence Livermore stegent simulated hydraulic fracture candler hydrocarbon production hydraulic fracture 1. INTRODUCTION The Hydraulic Fracturing Test Site (HFTS) project, fielded within the Wolfcamp Formation in the Permian Basin...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1024
... appear to be perturbed and cause fractures to reactivate under stress. In our study this resulted in enhanced production associated with increased activation of surfaces in the upper treatment zone. hydraulic fracturing microseismic event ternary plot stress path difference lower spraberry...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0214
... & mining strength microseismic event stress drop reservoir geomechanics event count coal microseismicity Scenario coal seam heterogeneous zone intensity seismic energy xylite-rich zone fracture Coal Mining 1. INTRODUCTION Underground mining activities are usually accompanied by...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0409
... Upstream Oil & Gas shear wave response Reservoir Characterization crack density damani microseismic event polarization wave travel time shear velocity shear wave travel time secondary fracture main fracture transducer shear wave velocity fracture propagation propagation fracture...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0136
... surrounding rock. Results show that for a fixed length of hydraulic fracture, the first events in time occur near the crack tip region where the Coulomb stress changes are positive due to elastic stress perturbations. The pore pressure diffusion subsequently leads to microseismic events near the fracture face...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-691
... microseismic event stress direction principal stress equation Upstream Oil & Gas fracture plane vector fracture microseismic focal mechanism reservoir geomechanics calculation tensor hydraulic fracture reference coordinate system Magnitude 1. INTRODUCTION The state of stress in a...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-858
... located in the Precambrian basement, referred to as the Narrows Zone, Fig. 1. Microseismic events attributed to the stimulation program occur in a linear trend moving to the northeast, consistent with the location of the Narrows Zone. The open hole section of the RRG-9 ST1 was imaged in 2012 and a...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-360
...),. geothermal reservoir stimulation orientation microseismic event Upstream Oil & Gas Basel stress state shear slip Reservoir Characterization pore pressure fault plane horizontal stress shear stress Australia seismicity fracture Cooper Basin Asanuma Mohr stress circle Magnitude 1...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-589
... Oil & Gas fault orientation hydraulic plane slippage event magnitude plane hydraulic fracturing Injection point microseismic event shear displacement temporal evolution multistage fracturing Simulation hydraulic fracture base case fault plane seismicity injection Magnitude...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-519
... Abstract: Microseismic events are commonly recorded during hydraulic fracturing experiments. In microseismic interpretations, each event is often regarded as causally independent and uncorrelated to neighboring ones. In reality, both the rock deformation (static stresses) and transient wave...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-535
... Abstract: A 3D geomechanical model of a hydraulic fracture treatment in the Horn River Basin was calibrated by comparing synthetic microseismic events to field data. Using this calibrated model, sensitivity studies were performed to determine the effect of geological parameters and...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-546
... Reservoir Characterization Upstream Oil & Gas perfect diversion complex reservoir stimulation pressure signature microseismic event poor diversion geometry re-fracturing old fracture partial diversion microseismic data new fracture fluid distribution microseismic geomechanics hydraulic...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-333
... processing centers located far away from the site. The microseismic data acquired were analyzed and mapped on the 3D plan of the caverns. Statistical data analysis using source parameters of microseismic events were carried out to correlate the events with rock bolt failures in order to study the...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-514
... stimulation fracture stimulation hydraulic fracture natural fracture network stress field net pressure upstream oil & gas natural fracture pressure diffusion hydraulic fracturing friction angle weakness plane aperture microseismic event viscosity simulation 1. INTRODUCTION Numerous...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-502
.... water pressure granite specimen emission reservoir characterization microseismic event hydraulic fracturing speed video specimen experiment acquisition system gonçalves da silva high speed video ae system upstream oil & gas mpa correspond crack initiation setup energy emission...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-658
... fractures due to injection-induced pressure increases in steam pressure. 1. INTRODUCTION Injecting fluid into a rock formation reduces the effective stress and can lead to brittle failure [1]. Such fracture reactivation can be accompanied by microseismic events due to the release of preexisting...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-763
... characterization microseismic depletion delineation test norbeck natural fracture microseismic event injection pressure simulation field test drawdown upstream oil & gas depletion reinjection completion stage complex reservoir reservoir pressure fracture additional slip 1. INTRODUCTION The...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-806
... the modelling software and recorded as a function of time or amount of injected fluid. Analyzing the results from both cases reveals a significant difference in the number and magnitude of microseismic events. A variation in the coefficient b of the Gutenberg-Richter’s empirical formula for the...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7190
... relation is an alternative to the commonly used Kanamori relationship and more applicable for the small-magnitude acoustic emissions in triaxial tests and likely microseismic events in hydraulic fracturing experiments, which are both marked by strong tensile deformation. Close examination of the source...

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