Matches in SemOpenAlex for { <https://semopenalex.org/work/W2554492083> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W2554492083 abstract "The prediction of the stress field distribution induced by the pore pressure change in deep hydrocarbon reservoirs and the consequent compaction of the porous rock formation is modeled with the aid of a Finite-Element (FE) geomechanical model. Despite the reliability of the model, which has been tested in several previous applications, many sources of uncertainty may affect the model outcome in terms of ground surface displacements. The uncertainty are mainly related to the mathematical model itself, that is an approximation reproducing a real and complex system, the initial and boundary conditions, the forcing terms, and the model parameters. The latter are the physical properties of the reservoir that are usually a-priori poorly known. A proper estimation of these parameters using a deterministic approach is discouraged as several parameters combinations may equally reproduce the observed data. Instead, the reservoir characterization is here performed by establishing a stochastic approach providing also for the quantification of the uncertainties affecting the parameter calibration. For this purpose, an ensemble-based data assimilation algorithm, i.e., the Ensemble Smoother, is elected among the available literature approaches. The methodology is investigated and tested in both synthetic cases and in real case applications by assimilating the available observations from in-situ measurements of ground-surface displacements. The characterization of the reservoir rock properties is provided for an Underground Gas Storage (UGS) reservoir and an offshore producing gas reservoir. Different set of parameters are estimated depending on the available information on the different fields. The parameters of a transversely isotropic model are calibrated using horizontal and vertical displacements from Persistent Scatterer Interferometry (PSI) measured above the UGS field, while vertical displacements from a time-lapse bathymetry are used to calibrate the uniaxial vertical compressibility of an isotropic constitutive law characterizing the behaviour of the offshore gas reservoir. Generally, it is obtained a satisfactory estimation of the geomechanical parameters with a significant spread reduction of the prior probability distributions when synthetic measurements, i.e., the displacements generated by an independent model run, are assimilated. However, more difficulties are encountered using real observations. This study gives indications on the main factors influencing the geomechanical characterization when assimilating movements of the land surface. The numerical results underline the importance of the consistency between the forward model and the assimilated measurements with an appropriate selection of data necessary to eliminate potential biases of the measurements and/or the modeling procedure." @default.
- W2554492083 created "2016-11-30" @default.
- W2554492083 creator A5033082642 @default.
- W2554492083 date "2016-01-27" @default.
- W2554492083 modified "2023-09-23" @default.
- W2554492083 title "Data Assimilation in Geomechanics: Characterization of Hydrocarbon Reservoirs" @default.
- W2554492083 hasPublicationYear "2016" @default.
- W2554492083 type Work @default.
- W2554492083 sameAs 2554492083 @default.
- W2554492083 citedByCount "0" @default.
- W2554492083 crossrefType "journal-article" @default.
- W2554492083 hasAuthorship W2554492083A5033082642 @default.
- W2554492083 hasConcept C102579867 @default.
- W2554492083 hasConcept C105795698 @default.
- W2554492083 hasConcept C121332964 @default.
- W2554492083 hasConcept C127313418 @default.
- W2554492083 hasConcept C134306372 @default.
- W2554492083 hasConcept C14641988 @default.
- W2554492083 hasConcept C153294291 @default.
- W2554492083 hasConcept C165838908 @default.
- W2554492083 hasConcept C182310444 @default.
- W2554492083 hasConcept C184050105 @default.
- W2554492083 hasConcept C185715996 @default.
- W2554492083 hasConcept C187320778 @default.
- W2554492083 hasConcept C24552861 @default.
- W2554492083 hasConcept C33556824 @default.
- W2554492083 hasConcept C33923547 @default.
- W2554492083 hasConcept C62520636 @default.
- W2554492083 hasConcept C78762247 @default.
- W2554492083 hasConceptScore W2554492083C102579867 @default.
- W2554492083 hasConceptScore W2554492083C105795698 @default.
- W2554492083 hasConceptScore W2554492083C121332964 @default.
- W2554492083 hasConceptScore W2554492083C127313418 @default.
- W2554492083 hasConceptScore W2554492083C134306372 @default.
- W2554492083 hasConceptScore W2554492083C14641988 @default.
- W2554492083 hasConceptScore W2554492083C153294291 @default.
- W2554492083 hasConceptScore W2554492083C165838908 @default.
- W2554492083 hasConceptScore W2554492083C182310444 @default.
- W2554492083 hasConceptScore W2554492083C184050105 @default.
- W2554492083 hasConceptScore W2554492083C185715996 @default.
- W2554492083 hasConceptScore W2554492083C187320778 @default.
- W2554492083 hasConceptScore W2554492083C24552861 @default.
- W2554492083 hasConceptScore W2554492083C33556824 @default.
- W2554492083 hasConceptScore W2554492083C33923547 @default.
- W2554492083 hasConceptScore W2554492083C62520636 @default.
- W2554492083 hasConceptScore W2554492083C78762247 @default.
- W2554492083 hasLocation W25544920831 @default.
- W2554492083 hasOpenAccess W2554492083 @default.
- W2554492083 hasPrimaryLocation W25544920831 @default.
- W2554492083 hasRelatedWork W112948218 @default.
- W2554492083 hasRelatedWork W1481118128 @default.
- W2554492083 hasRelatedWork W1513885533 @default.
- W2554492083 hasRelatedWork W1559814572 @default.
- W2554492083 hasRelatedWork W1989900418 @default.
- W2554492083 hasRelatedWork W2005973838 @default.
- W2554492083 hasRelatedWork W2007227992 @default.
- W2554492083 hasRelatedWork W2055672628 @default.
- W2554492083 hasRelatedWork W2061130232 @default.
- W2554492083 hasRelatedWork W2076251587 @default.
- W2554492083 hasRelatedWork W2112870345 @default.
- W2554492083 hasRelatedWork W2124868734 @default.
- W2554492083 hasRelatedWork W2141796041 @default.
- W2554492083 hasRelatedWork W2171049663 @default.
- W2554492083 hasRelatedWork W2267336594 @default.
- W2554492083 hasRelatedWork W2506011943 @default.
- W2554492083 hasRelatedWork W2621693564 @default.
- W2554492083 hasRelatedWork W3033687754 @default.
- W2554492083 hasRelatedWork W2061854914 @default.
- W2554492083 hasRelatedWork W2460154119 @default.
- W2554492083 isParatext "false" @default.
- W2554492083 isRetracted "false" @default.
- W2554492083 magId "2554492083" @default.
- W2554492083 workType "article" @default.