DOI: 10.1016/j.jag.2016.01.004
Scopus记录号: 2-s2.0-85014032413
论文题名: Inversion of double-difference measurements from optical leveling for the Groningen gas field
作者: Fokker P ; A ; , Van Thienen-Visser K
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2016
卷: 49 起始页码: 1
结束页码: 9
语种: 英语
英文关键词: Double differences
; Groningen
; Inversion
; Reservoir compaction
; Subsidence
Scopus关键词: algorithm
; compaction
; hydrocarbon reservoir
; inverse problem
; subsidence
; Groningen [Netherlands]
; Netherlands
英文摘要: Hydrocarbon extraction leads to compaction of the gas reservoir, which is visible on the surface as subsidence. Subsidence measurements therefore give information on the hydrocarbon extraction and can thus be used to better estimate uncertain reservoir parameters. Normally, optical height difference measurements are taken between benchmarks, adjusted and tested to arrive at estimated height differences (or subsequently, heights relative to a reference benchmark) and are differenced between epochs to arrive at subsidence estimates. These can subsequently be used in inversions for reservoir parameters. We have designed, implemented and applied a new algorithm that uses measured optical height differences directly in the geophysical inversion. This eliminates the problems introduced by insufficient knowledge of the full covariance matrix of the subsidence estimates. The procedure was applied to invert for compaction of the Groningen gas reservoir in the Netherlands. We used a linear inversion procedure to update an existing reservoir compaction field. This yielded areas of increased and reduced compaction relative to the existing compaction field, which correspond with observed discrepancies in porosity and aquifer activity. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80077
Appears in Collections: 气候变化事实与影响
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作者单位: TNO, Utrecht, Netherlands
Recommended Citation:
Fokker P,A,, Van Thienen-Visser K. Inversion of double-difference measurements from optical leveling for the Groningen gas field[J]. International Journal of Applied Earth Observation and Geoinformation,2016-01-01,49