Downhole Microseismic Data Processing - Consistency of Locations, Source Mechanisms and Stress State

Jechumtálová, Zuzana; Chu, Fangdong; Rong, Jianhong; Procházka, J.; Eisner, Leo

doi:10.3997/2214-4609.201600720

Cited by 2 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The second tested array configuration is a dual borehole monitoring array with 11 receivers in each well, similar to Jechumtálová et al (2016). The vertical wells are drilled 500 m from each other and the receivers are located at depths ranging from 1800 to 1920 m. In this case, we use as input both P-and Swave amplitudes, because they are commonly used for borehole receivers.…”

Section: Stability For Three Types Of Microseismic Monitoring Arraysmentioning

confidence: 99%

“…This problem could be practically solved using arrays in slightly deviated wells (Vera Rodrigues et al, 2011) which improves focal sphere coverage in the problematic direction, or by using a constrained inversion (Jechumtálová and Šílený, 2005). Luckily, events located by Jechumtálová et al (2016) seems to be in a zone (cut by cross-sections in Fig. 2) where we get relatively components of M .…”

Section: Stability For Three Types Of Microseismic Monitoring Arraysmentioning

confidence: 99%

“…We mimic three different types of arrays used to monitor reservoir stimulation that were used in publications interpreting source mechanisms of microseismic events. We test a dense surface array (e.g., Anikiev et al, 2014), dual borehole array (Jechumtálová et al, 2016) and receiver arrays in many shallow boreholes (Mahrooqi et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical assessment of the full_moment_tensor resolvability for receiver arrays used in microseismic monitoring

Staněk¹

2017

Acta Geodynamica Et Geomaterialia

View full text Add to dashboard Cite

An inversion of full moment tensors representing source mechanisms is becoming routinely used when interpreting microseismic monitoring. However, a stability of such inversion varies significantly for different receiver arrays. Unlike stability of location, which is hard to assess, the stability of inverted full moment tensor can be measured by a condition number. We tested three types of receiver arrays (dense surface array, dual borehole array and multi-borehole array) used in the microseismic monitoring and computed the theoretical stability of full moment tensor inversion from P-or P-and S-wave amplitudes at areas of interest. We analyzed a 3D distributions of the condition numbers and show that with surface and multi-borehole arrays of receivers we are capable of inverting stable source mechanisms for the events located at depths comparable to the maximum offset of receivers, but shallower events and the events at the depths of the borehole arrays are poorly constrained. This study provides a guidance for a quick prediction of source mechanism inversion quality. Computing condition numbers does not require any information about the data, it measures a theoretical quality of the moment tensor inversion. The computed condition numbers represent inversion for ideal dataset with the selected geometry.

show abstract

Section: Stability For Three Types Of Microseismic Monitoring Arraysmentioning

confidence: 99%

Section: Stability For Three Types Of Microseismic Monitoring Arraysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical assessment of the full_moment_tensor resolvability for receiver arrays used in microseismic monitoring

Staněk¹

2017

Acta Geodynamica Et Geomaterialia

View full text Add to dashboard Cite

show abstract

Increasing accuracy and precision for microseismic interpretation

Bray

White

2018

SEG Technical Program Expanded Abstracts 2018

View full text Add to dashboard Cite

Downhole Microseismic Data Processing - Consistency of Locations, Source Mechanisms and Stress State

Cited by 2 publications

References 0 publications

Theoretical assessment of the full_moment_tensor resolvability for receiver arrays used in microseismic monitoring

Theoretical assessment of the full_moment_tensor resolvability for receiver arrays used in microseismic monitoring

Increasing accuracy and precision for microseismic interpretation

Contact Info

Product

Resources

About