Nabil Belaid - These

Baronm

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¾¾¾¾¾¾École Nationale Supérieure de Mécanique et d’Aérotechnique /Université de PoitiersLaboratoire d’Informatique Scientifique et Industrielle (www.lisi.ensma.fr)ENSMA - Téléport 2-1 Avenue Clément Ader - BP 40109 - 86961 FUTUROSCOPE CHASSENEUIL Cedex - FranceSWAPTSemantic Workflow Architecture for Petroleum TechniquesContext: CO2 sequestration Proposal Use Case for ActivitiesUse ontologies and indexation to bring •Ontologies of Geo-Activities (GAO);Extracting oil and gas produces huge explicit semantics to workflows. •Models of Geo-Activities (GAM);amounts of CO2. Its storage has become a •Indexation Model (GAIM).major concern and to be securely •Link the Activity with Data Layer SWAPT GenericApproachperformed, it needs prospects geo-modeling •An ontology-based database as a •Data Layer(interpretation of Seismic Images). This repository for activities and dataData Ontologies (DO)modeling activity leads to complex Data Models (DM)processes and activities aggregated into (1) Ontologies of Geo-Activities (GAO)Data Indexation Model (DIM) links workflows. As the workflows definitions are Activities classification into ontologiesthe DM to the DOstrongly linked to their designers, technical •Activities Layerknowledge is necessary to use or create Ontologies of Activities (AO) makes already used or new workflows which reference to the AOconsume or produce this technical Models of Activities (AM) makes knowledge. DMIndexation Model of Activities (AIM) ...

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• Publié par: Fuiv
• Nombre de lectures: 18
• Langue: English

Extrait

École Nationale Supérieure de Mécanique et d’Aérotechnique / Université de Poitiers Laboratoire d’Informatique Scientifique et Industrielleww(.esiliw.snamf.)r ENSMA - Téléport 2-1 Avenue Clément Ader - BP 40109 - 86961 FUTUROSCOPE CHASSENEUIL Cedex - France SWAPT SemanticWorkflow Architect for Petroleum Techniqu urees

Context: CO2 sequestration Extracting oil and gas produces huge amounts of CO2. Its storage has become a major concern and to be securely performed, it needs prospects geo-modeling (interpretation of Seismic Images). This modeling activity leads to complex processes and activities aggregated into workflows. As the workflows definitions are strongly linked to their designers, technical knowledge is necessary to use or create already used or new workflows which consume or produce this technical knowledge.

2D-image (seismic cube) produced by a seismic exploration.

Aim Enable persistent modeling and semantic discovery for activities or workflows and/or produce new ones by composition. The geo-workflows and basic activities should be indexed, accessed and composed through a geo-modeling activities ontology

Proposal Use  Case for Activities Use ontologies and indexation to bring •Ontologies of Geo-Activities (GAO); explicit semantics to workflows. •Models of Geo-Activities (GAM); •Indexation Model (GAIM). SWAPT GenericApproach •Link the Activity with Data Layer •Data Layer •An ontology-based database as a ¾Data Ontologies  for activities and data(DO) repository ¾Data Models(DM) t ¾ h D e a D ta M   t I o n t d h e e x   a D ti O on Model(DIM) links  ontologies to •Activities Layer ¾Ontologies of Activities(AO) makes reference to the AO ¾Models of Activities(AM) makes reference to the DM ¾Indexation Model of Activities(AIM) links the AM to the AO (1) Ontologies of  An ontology fragment geo-activities of  Image activities (2) Models of Geo-Activities (GAM) (3) Indexation Model (GAIM) Indexation of services

Geo-modeling wo samanegemtn  cirrppahcao rof   em stianwoc flrk eiaslogodnxedni n-baatiogenesed ntO Geo-modeling can be seen as a high level workflow. It aims at transforming a "3D- image“ obtained from a seismic exploration to a fluid flow simulation forecast (CO2). Use Case for Data (*) •(A) Geo-Data Ontologies (GDO); s m tr o u d c e t l ural S m tr o a d t e i l g   raphic •(B) Geo-Data Models (GDM); Reservoir gridUpscaling •(C) Indexation Model (GDIM). Well a seismi data al model : Flow  simulation Facies, porosity,  Sei ytiliebpamer Interpretation Geo-modeling high level workflow tion    Case Study: Seismic interpretation The Seismic Interpretation is a geo-modeling Geo-Data ontologies, models and indexation model step. Its objective is to interpret a 3D-image (seismic cube) to create a structural model (recognition of horizons, faults or channels). As it is a complex process, it can be modeled Example of a geo-data indexation as a workflow. References: (*) Ontology-based model annotation of heterogeneous geological representations. Mastella, L.S., Ait-Ameur, Y., Perrin, M., Rainaud, J.F. 4th Int. Conf. WEBIST, 2008 (**) OntoDB: An Ontology-Based Database for Data Intensive Applications. A seismic interpretation workflow leB & .G ,arreiP; H., lasainhaDe eedings of DASFA alrtceeh ,.L rPco 07oC Arefnecne02 ,

(2) model of geo-  (3) Indexation model activities (services)  of geo-activities

Example of an indexation of an atomic service Implementation SWAPT is implemented in OntoDB (**)

Query: What services take as input a data model which is a Reflector?

SELE Service.URI FROM Activity Service Indexation WHERE Activity.In e And Indexation.act  =  Activity.URI And Indexation.ser =  Service.URI

Contributors • Yamine AIT AMEUR • Nabil BELAID – PhD Student – CIFRE / IFP • Jean-François RAINAUD – IFP [e-mail]