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Arabian Plate Earth Model in 3-D: Application to Regional Previous HitPlayNext Hit Evaluation of the Khuff

Lodola, Domenico *1; Martin, Richard J.1; Casey, Dave M.1; Davies, Roger 1; Sharland, Peter R.1; Simmons, Mike 1
(1) Neftex Petroleum Consultants Ltd, Abingdon, United Kingdom.

We present a 3D Earth Model of the Arabian Plate and demonstrate live its use for the rapid assessment of Previous HitplayNext Hit potential, with an example from the Khuff gas Previous HitplayNext Hit in eastern Arabia. The model encompasses all strata from basement to surface, and covers an area of c. 1,200 by 1,200km with a grid size of 10km. Based on our robust sequence stratigraphic framework and a database of publically available information, the model is divided into 82 layers corresponding to key 1st, 2nd and 3rd order depositional sequences.

Regional Previous HitplayNext Hit evaluations demand the integration of large volumes of data and interpretations from a wide variety of sources, including wells, seismic, facies maps, structure maps and basin modelling. Historically a task for an experienced explorer and a light table, the advent of geographical information systems (GIS) allows greater efficiencies and some automation of workflows, but still does not offer complete integration of data, applications and products.

Recent advances in computer hardware and software, in particular Petrel 2011* from Schlumberger Information Solutions, enables us to build 3D geological models at a scale appropriate for regional exploration. Petrel 2011 and related software allow us to load and manipulate all the data required to carry out Previous HitplayNext Hit evaluations, and offers an environment where all data and interpretations are fully integrated. The resulting models then allow the user to visualise geological features in both the depth and geological time domains. This not only improves efficiencies, but adds increased insight into the geological basis for petroleum system and Previous HitplayNext Hit fairway Previous HitanalysisNext Hit.

The resulting Arabian Plate Earth Model allows identification and visualisation of the extent of key reservoirs, seals and source rocks, greater understanding of their stratigraphic and geometrical relationships, and rapid assessment of their quality and maturity. Common risk segment maps can then be generated and combined on any layer within the model, and for any Previous HitplayNext Hit element. Applied to the Khuff gas Previous HitplayNext Hit, this enables us to rapidly produce (and update with new data if needed) a regional Previous HitplayNext Hit risk map for the Khuff and identify areas of higher potential for this Previous HitplayTop.

*A mark of Schlumberger

 

AAPG Search and Discovery Article #90141©2012, GEO-2012, 10th Middle East Geosciences Conference and Exhibition, 4-7 March 2012, Manama, Bahrain