Experimental Simualtion Of Hot Fluid Injection Process for In-reservoir Upgrading

Nowadays, the industry recovers bitumen by injecting heat via steam to reduce bitumen’s viscosity in the reservoir so it flows easily to the surface. A high heat capacity fluid could eventually replace steam in this role. Vacuum Residue (VR) is the heaviest, most viscous and richest in contaminants amongst the different bitumen fractions, thus is the one deserving most upgrading, and it also has the highest heat capacity of oil fractions. The Centre for In Situ Energy at University of Calgary has proposed the use of VR to simultaneously recover and upgrade in situ, as it can be a carrier of heat but also of nano-dispersed catalysts and dissolved hydrogen into a reservoir which can enhanced upgrading. The design and construction of a new reactivity test unit for evaluating the injection of ultra-dispersed catalyst suspended on Athabasca vacuum residue (AVR) using dispersed hydrogen in sand pack media has been completed and extensively tested in this work. The deposition of the catalyst particles on the surface of the porous medium was studied and the amount of metal inside the reactor quantified. The results for catalytic evaluation showed a residue fraction conversion of up to 23 wt. %. Finally, the study of the injection of industrial VR and Athabasca bitumen to a porous medium with ultra-dispersed catalyst was carried out at typical reservoir conditions. The results showed a considerable improvement of the feedstock producing a conversion in the residue fraction of 32 wt. % and 15 wt.% respectively.

Name thesis:degree_name

Master of Science (MSc)

Discipline thesis:degree_discipline

Chemical and Petroleum Engineering

Grantor dc:publisher.institution

Graduate Studies

Year dc:date.issued

2013

Author dc:creator

• Coy Plazas, Luis Alejandro

Advisor dc:contributor.advisor

• Pereira-Almao, Pedro

• Engineering--Petroleum

Statement dc:rights

• University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.

Language dc:language.iso

eng

DOI

http://dx.doi.org/10.11575/PRISM/26064

OAI identifier oai:identifier

oai:ucalgary.scholaris.ca:11023/430