Please use this identifier to cite or link to this item: http://dx.doi.org/10.14279/depositonce-12284
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Main Title: Quantitative Assessment of Vertical and Horizontal Deformations Derived by 3D and 2D Decompositions of InSAR Line-of-Sight Measurements to Supplement Industry Surveillance Programs in the Tengiz Oilfield (Kazakhstan)
Author(s): Bayramov, Emil
Buchroithner, Manfred
Kada, Martin
Zhuniskenov, Yermukhan
Type: Article
URI: https://depositonce.tu-berlin.de/handle/11303/13501
http://dx.doi.org/10.14279/depositonce-12284
License: https://creativecommons.org/licenses/by/4.0/
Abstract: This research focused on the quantitative assessment of the surface deformation velocities and rates and their natural and man-made controlling factors at Tengiz Oilfield in Kazakhstan using the Small Baseline Subset remote sensing technique followed by 3D and 2D decompositions and cosine corrections to derive vertical and horizontal movements from line-of-sight (LOS) measurements. In the present research we applied time-series of Sentinel-1 satellite images acquired during 2018–2020. All ground deformation derivatives showed the continuous subsidence at the Tengiz oilfield with increasing velocity. 3D and 2D decompositions of LOS measurements to vertical movement showed that the Tengiz Oil Field 2018–2020 continuously subsided with the maximum annual vertical deformation velocity around 70 mm. Based on the LOS measurements, the maximum annual subsiding velocity was observed to be 60 mm. Cosine corrections of LOS measurements to vertical movement, however, revealed a maximum annual vertical deformation velocity of 77 mm. The vertical deformation confirmed typical patterns of subsidence caused by oil extraction. Detected east-west and north-south horizontal movements at the Tengiz field clearly indicated that the study area crossed by seismic faults is affected by natural tectonic processes. The overall RMSE of 3D decomposed vertical deformation in relationship to LOS measurements and cosine corrections were in the range of 10–13 mm and 6–8 mm, correspondingly. The results of the present research will support operators of oil and gas fields and also other types of infrastructure to evaluate the actual differences of InSAR ground deformation measurements against the required standards and the precision of measurements depending on the operational needs, timeframes and availability of radar imagery.
Subject(s): SBAS
2D and 3D decomposition
remote sensing
geospatial
oil field
radar
interferometry
Issue Date: 1-Jul-2021
Date Available: 17-Aug-2021
Language Code: en
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Journal Title: Remote Sensing
Publisher: MDPI
Volume: 13
Issue: 13
Article Number: 2579
Publisher DOI: 10.3390/rs13132579
EISSN: 2072-4292
TU Affiliation(s): Fak. 6 Planen Bauen Umwelt » Inst. Geodäsie und Geoinformationstechnik » FG Methodik der Geoinformationstechnik
Appears in Collections:Technische Universität Berlin » Publications

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