Webinar – Core permeability data in integrated reservoir studies

Dear students,
You are kindly invited to attend a lecture organized by the SPE Italian section:

Protocols for the improved application of core permeability data in integrated reservoir studies

given by Paul F Worthington – Gaffney, Cline & Associates

The event will be held on Tuesday, 4th June 2013, 5:00 PM (Milan-time) via webinar at the DIATI – Bibolini Room.


Intergranular permeability has to be quantified meaningfully if integrated studies of petroleum reservoirs are to attain maximum value. Yet, despite considerable advances in data acquisition technology for geoscience and geoengineering applications, the permeability of reservoirs that show predominantly intergranular flow is often incorrectly quantified and misused. This state of affairs has caused reservoir flow to be misrepresented in 3D subsurface models with consequential distortions of projected reservoir performance. This paper sets out to redress this unsatisfactory state of affairs by outlining technical protocols for achieving the following objectives.
- Defining parametric terminology unambiguously.
- Matching the permeability parameter(s) to the intended application.
- Delivering permeability data that are representative of the reservoir system.
- Partitioning data to achieve better defined algorithms for permeability prediction.
- Honouring scale of measurement in the application of data and relational algorithms.
- Reconciling static and dynamic data for field application.
These six protocols are captured in a workflow for improved permeability prediction in cored reservoirs that show predominantly intergranular flow. Adoption of the resulting workflow has demonstrably improved the synthesis of static modeling data as a foundation for initialization of the reservoir simulator. In particular, the greater role of effective permeability has resulted in the better characterization of reservoir hydraulics.


Paul F. Worthington is a Principal Adviser with Gaffney, Cline & Associates in Singapore, where his main interests are integrated studies for reservoir evaluation and management, equity redetermination and reserves estimation. Previously he spent many years with BP, mostly as Head of Formation Evaluation at the BP Research Centre in Sunbury-on-Thames, England. His degrees include a PhD and a higher doctorate (DEng), both from the University of Birmingham, UK, and he has published over 85 peer-reviewed papers in the field of engineering geoscience. From 1986-1992 he served as Chairman of the Downhole Measurements Panel of the international Ocean Drilling Program. Since 1997 Worthington has held a visiting professorship in Petroleum Geoscience and Engineering at Imperial College, University of London, and prior to that (1990-97) he held a visiting research professorship at Columbia University, New York. He has served as President of SPWLA (1985-86) and has twice served as a Distinguished Lecturer (1985-86; 2001-02), a Distinguished Author (2004: 2011), and Chair of the Formation Evaluation Committee (2001-02; 2002-03) of SPE. He has also co-chaired four SPWLA topical conferences and five SPE ATWs on the subjects of formation evaluation and reserves. Worthington has received the Technical Achievement Awards of SPWLA and the Society of Core Analysts, the Gold Medal for Technical Achievement of SPWLA, and he is an Honorary Member of EAGE. He has edited or co-edited the journals Petrophysics and Petroleum Geoscience and the tripartite book series Advances in Core Evaluation. Worthington is a Chartered Geologist and Chartered Engineer in the United Kingdom, and he is a Fellow of the UK’s Energy Institute.

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