... Interpretation of fracture geometry from microseismic events is also impacted by uncertainties in the velocity models used to determine the location of events, detectability limits (i.e., the ratio of event magnitude to geophone distance detectability boundary) and finally the occurrence...

... spatio-temporal trends in seismicity rather than reliance on microseismic event clouds to provide more meaningful assessment of hydraulically-linked seismicity vs. stress-driven seismicity. The findings of the first two case studies were applied to the stimulation of the third well pad to demonstrate...

... of a microseismic monitoring effort, because the generation of a microseismic event is not immediately diagnostic of fluid-induced fracturing, the event clouds tend to overestimate the effective area of fracturing. In order to gain further insight into how microseismic events describe effective fracture growth...

... ways; by stage, every 5 minutes within a stage, by fluid type, and by magnitude to understand the azimuthal, stress and completions controls on the mechanics and the productivity. The treatments of the two wells have very different spatial patterns of microseismic events as detected by both surface...

... between the number of micro-seismic events and the magnitude of ISIP for a given stage, lower ISIP values generally correlate to a wider spatial distribution of microseismic events ( Figures 3 c and 4 c). Lithology variations along well trajectory Drastic variations of lithology along both WDFD...

... deconvolution microseismic event Material Balance conductivity wellbore SRV References References Hulsey , K ; Slatt , R. ; Dunphy , R. 2011 . Lithofacies Characterization and Sequence Stratigraphic Framework of some Gas-bearing Shales within the Horn River Basin, Northeastern...

.... Upstream Oil & Gas workflow complex reservoir fracture network fracture propagation model unconventional fracture propagation model Modeling & Simulation natural fracture interpretation complexity hydraulic fracture interaction hydraulic fracturing microseismic event complex fracture...

... and branch-out through the intersection. Abstract Microseismic mapping during hydraulic fracturing processes in Vaca Muerta (VM) Shale in Argentina shows a group of microseismic events happening at shallower depth and at later injection time, and they clearly deviate from the growing planar hydraulic...

... observed from microseismic data. Available microseismic data was used to validate the DFN and UFM models. The DFN model showed natural fracture intensity variation along and away from the wellbore and for the most part agreed with the footprint of the microseismic events. This variation was also captured...

...Introduction Abstract We analyzed microseismic spatial and temporal distribution, magnitudes, b -values and treatment data to interpret and explain the observed anomalies in microseismic events recorded during exploitation of Shale Gas reservoirs in the Horn River Basin of Canada. We...

... directions by 100 ft. hydraulic fracturing orientation SRA inversion Upstream Oil & Gas horizontal fracture midperforation complex reservoir dislocation microseismic event hydraulic deformation index tiltmeter measurement inversion result fracture system HDI reservoir characterization...

... system Upstream Oil & Gas major fault microseismic event pressure response hydraulic fracturing lateral mechanism b-value result microseismic monitoring horizontal completion optimization Reservoir Characterization fault location orientation major fault zone completion solution...

... fracture geometry hydraulic fracturing viscosity society of petroleum engineers fracture modeling microseismic event analytical solution fracture propagation Introduction Hydraulic fracturing combined with horizontal drilling technology has unlocked significant new global resources...

..., and attributes that describe the microseismic events are also routinely compared to the recorded treatment pressure, injection rate, and proppant concentration data during the interpretation. Abstract Interpretation of the microseismic data acquired during hydraulic fracture treatments is based...

... stages, we see correlation between the b and D-values, but it is not consistently positive or negative throughout any stage. Changes in the correlation are accompanied by a change in pumping pressure, rate, and the frequency of microseismic events. An intriguing observation is a correlation between...

... Abstract Microseismic monitoring is becoming an integral part of hydraulic fracturing. The observed microseismic events reflect the rock failure that occurs during or after the stimulation, and so the events’ spatial distribution is often used to determine the stimulated rock volume (SRV...

... characteristics of microseismic events. The amplitudes and frequency content of the detected microseismic events are used to estimate the seismic moment of the deformation. Seismic moment values are then converted to equivalent moment-magnitudes, hereinafter referred to as event magnitudes. Magnitude values...

... Abstract Microseismic event analysis is a valuable source of information that can play a pivotal role in optimizing well completion and spacing. This analysis can be taken a step further with the generation of discrete fracture networks (DFNs) from microseismic events. While DFNs can be modeled...

... response can be used to identify the effective spacing for perforation clusters and establish optimal stimulation programs, which could include setting fracture ports farther apart. source-type plot completion hydraulic fracturing mechanism microseismic event reservoir characterization spe...

..., microseismic event locations. This work shows how a simple modification to the velocity model, accounting for a 4.5-degree dip supported by geological data, significantly impacts the event final locations during a borehole-based hydraulic fracturing monitoring job. Overall geometry of the hydraulically-induced...