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The Barents Sea of the Norwegian Continental Shelf: Drilling through Carbonates if Hydrogen Sulphide is Present: Modelling. Risk Management. Well PlanningNormal access

Authors: M.A. Mosesyan, H. Alexander, K.M. Edin, L.M. Surguchev and A. Rabey
Event name: First EAGE/IFPEN Conference on Sulfur Risk Management in Exploration and Production
Session: Latest Advances in Modelling and Prediction of H2S
Publication date: 18 September 2018
DOI: 10.3997/2214-4609.201802766
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 474.67Kb )
Price: € 20

Summary:
There are a number of geological and hydrogeochemical modelling techniques that can be used in order to ascertain formation and generation of the hydrogen sulphide (H2S) in the formation fluid within a geological setting in several blocks of the Norwegian Barents Sea. Careful consideration of the H2S generation can then be used in the drilling context especially when presence of H2S is coupled Permian and Carboniferous carbonate plays prone to causing severe drilling fluid losses and increasing exposure time of the downhole equipment to the H2S. Using appropriate analogues and adequate well offset analysis tend to demonstrate that most or all of the risk factors can be well mitigated.


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