Overburden modeling above a compacting reservoir using a trap door apparatus

Papamichos, E; Vardoulakis, I; Heil, LK

dc.contributor.author	Papamichos, E	en
dc.contributor.author	Vardoulakis, I	en
dc.contributor.author	Heil, LK	en
dc.date.accessioned	2014-03-01T01:16:55Z
dc.date.available	2014-03-01T01:16:55Z
dc.date.issued	2001	en
dc.identifier.issn	1464-1895	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14269
dc.subject.classification	Geochemistry & Geophysics	en
dc.subject.other	compaction	en
dc.subject.other	hydrocarbon reservoir	en
dc.subject.other	modeling	en
dc.subject.other	overburden	en
dc.title	Overburden modeling above a compacting reservoir using a trap door apparatus	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1464-1895(01)00025-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1464-1895(01)00025-4	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	The consequences of large reservoir compaction on the surface subsidence and the stress path of the overburden formations were investigated with physical modeling experiments where the compacting reservoir was modeled with a circular retracting trap door (TD) under a deformable overburden of sand. Tests with various overburden heights showed the formation of shear bands starting almost vertically at the TD edges and converging successively to the symmetry axis. A shallow and a deep formation mechanism were identified. In the shallow mechanism, the shear bands reach immediately the upper surface and thus the TD displacement is felt immediately at the surface as subsidence. In the deep mechanism, at low TD displacements the shear bands meet initially each other forming an arch and thus only part of the TD displacement is felt at the surface. At higher TD displacements, additional shear bands form above the initial shear band and eventually reach the surface. After that, the TD displacement is directly felt at the surface as subsidence. The TD stress drops rapidly to a minimum value, which appears to be independent of the overburden height. (C) 2001 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy	en
dc.identifier.doi	10.1016/S1464-1895(01)00025-4	en
dc.identifier.isi	ISI:000167514000012	en
dc.identifier.volume	26	en
dc.identifier.issue	1-2	en
dc.identifier.spage	69	en
dc.identifier.epage	74	en