Viscous Fingering Stimulation Option Applied on Heavy-Oil Carbonate Reservoirs

2014 ◽  
Author(s):  
Jose Javier Ballinas
Keyword(s):  
Heavy Oil ◽  
Viscous Fingering ◽  
Carbonate Reservoirs

Correlations of viscous fingering in heavy oil waterflooding

Fuel ◽  
2016 ◽  
Vol 179 ◽  
pp. 97-102 ◽  
Author(s):  
Benyamin Yadali Jamaloei ◽  
Rana Babolmorad ◽  
Riyaz Kharrat
Keyword(s):  
Heavy Oil ◽  
Viscous Fingering

Modeling Acid Fracturing Treatments with Multi-Stage Alternating Injection of Pad and Acid Fluids

2021 ◽  
Author(s):  
Rencheng Dong ◽  
Mary F. Wheeler ◽  
Hang Su ◽  
Kang Ma
Keyword(s):  
Viscous Fingering ◽  
High Viscosity ◽  
Carbonate Reservoirs ◽  
Acid Etching ◽  
Fracture Geometry ◽  
Fracture Conductivity ◽  
Acid Fracturing ◽  
Fracture Surfaces ◽  
Low Viscosity ◽  
Multi Stage

Abstract Acid fracturing technique is widely applied to stimulate the productivity of carbonate reservoirs. The acid-fracture conductivity is created by non-uniform acid etching on fracture surfaces. Heterogeneous mineral distribution of carbonate reservoirs can lead to non-uniform acid etching during acid fracturing treatments. In addition, the non-uniform acid etching can be enhanced by the viscous fingering mechanism. For low-perm carbonate reservoirs, by multi-stage alternating injection of a low-viscosity acid and a high-viscosity polymer pad fluid during acid fracturing, the acid tends to form viscous fingers and etch fracture surfaces non-uniformly. To accurately predict the acid-fracture conductivity, this paper developed a 3D acid fracturing model to compute the rough acid fracture geometry induced by multi-stage alternating injection of pad and acid fluids. Based on the developed numerical simulator, we investigated the effects of viscous fingering, perforation design and stage period on the acid etching process. Compared with single-stage acid injection, multi-stage alternating injection of pad and acid fluids leads to narrower and longer acid-etched channels.

In-situ upgrading and enhanced recovery of heavy oil from carbonate reservoirs using nano-catalysts: Upgrading reactions analysis

Fuel ◽  
2019 ◽  
Vol 252 ◽  
pp. 262-271 ◽  
Author(s):  
Seyed Moein Elahi ◽  
Carlos E. Scott ◽  
Zhangxin Chen ◽  
Pedro Pereira-Almao
Keyword(s):  
Heavy Oil ◽  
Enhanced Recovery ◽  
Carbonate Reservoirs ◽  
Nano Catalysts

A Review on Thermal Enhanced Heavy Oil Recovery from Fractured Carbonate Reservoirs

2012 ◽  
Author(s):  
Eshragh Ghoodjani ◽  
Riaz Kharrat ◽  
Manouchehr Vossoughi ◽  
Seyed Hamed Bolouri
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Carbonate Reservoirs ◽  
Heavy Oil Recovery ◽  
Fractured Carbonate

Sub-Pore Scale Modelling of Viscous Fingering During Heavy Oil Miscible Flood

2014 ◽  
Author(s):  
Saeed Taheri ◽  
Shahin Ghomeshi ◽  
Jonathan Luke Bryan ◽  
Sergey Kryuchkov ◽  
Apostolos Kantzas
Keyword(s):  
Heavy Oil ◽  
Viscous Fingering ◽  
Pore Scale ◽  
Scale Modelling

Characterization of Viscous Fingering and Channeling for the Assessment of Polymer-Based Heavy Oil Displacements

2019 ◽  
Vol 131 (3) ◽  
pp. 873-906 ◽  
Author(s):  
Sarah Bouquet ◽  
Frederic Douarche ◽  
Frederic Roggero ◽  
Sarah Leray
Keyword(s):  
Heavy Oil ◽  
Viscous Fingering
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