LOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR

<p align="justify">Microseismic monitoring can provide an overview of the distribution and geometry of fracture formed during hydraulic fracturing. Most fundamental thing in microseicmic monitoring is the accuracy of the hypocenter location. Insufficient survey configuration coverage...

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Main Author: NIM: 12314019, ARDIANTO
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/25726
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:25726
spelling id-itb.:257262018-09-21T09:40:50ZLOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR NIM: 12314019, ARDIANTO Indonesia Final Project INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/25726 <p align="justify">Microseismic monitoring can provide an overview of the distribution and geometry of fracture formed during hydraulic fracturing. Most fundamental thing in microseicmic monitoring is the accuracy of the hypocenter location. Insufficient survey configuration coverage, in which case is single vertical borehole array can provide great uncertainty in hypocenter location determination. Several step of data processing is conduct for optimization of microseismic hypocenter location to overcome this problem. First, signal analysis is done by short time Fourier transform (STFT) to know the characteristic of microseismic, so it can be used for designing the most optimal filter. Then, we improve the arrival time picked using waveform cross correlation (WCC) technique. Hypocenter location determined using equal distance time (EDT) dan systematic search method. EDT gives preliminary hypocenter solution and origin time of microseismic event. The result is used in systematic search, with the model space is limited to the back azimuth direction of microseismic. Back azimuth is obtained through particle motion analysis or hodogram. Hodogram can give 1800 ambigous result, the apriori information of treatment well position to overcome this problem. Quality control that used in this study not only from RMS error but also take advantage of doblets and multiplets event obtained from waveform clustering algorithm. By doing this procedure the location of hypocenter solution can be well determined and give another way to quality control the solution.<p align="justify"> text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
description <p align="justify">Microseismic monitoring can provide an overview of the distribution and geometry of fracture formed during hydraulic fracturing. Most fundamental thing in microseicmic monitoring is the accuracy of the hypocenter location. Insufficient survey configuration coverage, in which case is single vertical borehole array can provide great uncertainty in hypocenter location determination. Several step of data processing is conduct for optimization of microseismic hypocenter location to overcome this problem. First, signal analysis is done by short time Fourier transform (STFT) to know the characteristic of microseismic, so it can be used for designing the most optimal filter. Then, we improve the arrival time picked using waveform cross correlation (WCC) technique. Hypocenter location determined using equal distance time (EDT) dan systematic search method. EDT gives preliminary hypocenter solution and origin time of microseismic event. The result is used in systematic search, with the model space is limited to the back azimuth direction of microseismic. Back azimuth is obtained through particle motion analysis or hodogram. Hodogram can give 1800 ambigous result, the apriori information of treatment well position to overcome this problem. Quality control that used in this study not only from RMS error but also take advantage of doblets and multiplets event obtained from waveform clustering algorithm. By doing this procedure the location of hypocenter solution can be well determined and give another way to quality control the solution.<p align="justify">
format Final Project
author NIM: 12314019, ARDIANTO
spellingShingle NIM: 12314019, ARDIANTO
LOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR
author_facet NIM: 12314019, ARDIANTO
author_sort NIM: 12314019, ARDIANTO
title LOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR
title_short LOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR
title_full LOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR
title_fullStr LOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR
title_full_unstemmed LOCATION DETERMINATION AND QUALITY CONTROL MICROSEISMIC HYPOCENTER CASE: SINGLE VERTICAL BOREHOLE ARRAY SENSOR
title_sort location determination and quality control microseismic hypocenter case: single vertical borehole array sensor
url https://digilib.itb.ac.id/gdl/view/25726
_version_ 1821910524199174144