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Modeling Recovery of Next Generation Extreme Heavy Oil Tar-Mat <5 API Unconventional in KuwaitGold Open Access

Author: W.H.A. Al-Bazzaz
Event name: EAGE Workshop on Petroleum Geochemistry in Operations and Production
Session: Challenges with Tarmats & Heavy Oil
Publication date: 03 October 2016
DOI: 10.3997/2214-4609.201602329
Organisations: EAGE
Language: English
Info: Abstract, PDF ( 238.7Kb )

Summary:
Tar-mat exists in large quantities in Kuwaiti fields and around the globe. Tar-mat unconventional tight oil is considered a future giant petroleum reservoir with a distinctive production mobility handicap that marks a unique new-generation extreme heavy <5 ̊API oil reserves. These immobile quantities of oils are abundant in great amounts yet extremely difficult to produce due to its rich and large molecules of type III heavy oil and type IV NSO’s. Eventually, the world will consider unlocking these types of oils since the conventional volatile and smaller-molecule conventional oils are continuously depleting. The study will examine the efficiency recovery yields through both CHNSO geochemistry fingerprinting and conventional recovery methods exerted on solid-like unconventional oil available in tight pore spaces carbonate rocks. Conventional recovery methods will include Toluene solvent, steam and steam augmented with surfactant. All recovery treatments will include several selected temperatures. All recovery agents considered for this study are bench-scale laboratory physical experiments with industrial toluene, de-ionized water and de-ionized water aided surfactant augmented with 25 ̊C, 135 ̊C, 225 ̊C and 315 ̊C heat treatments. This study presents novel modelling discoveries regarding tar-mat qualitative in-situ API upgrade as well as efficiency quantitative recoveries.

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