scholarly journals Performance demonstration of gas-assisted gravity drainage in a heterogeneous reservoir using a 3D scaled model

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30610-30622
Author(s):  
Debin Kong ◽  
Peiqing Lian ◽  
Rongchen Zheng ◽  
Yiqiang Li
Keyword(s):  
Oil Recovery ◽  
Gravity Drainage ◽  
Scaled Model ◽  
Heterogeneous Reservoir ◽  
Performance Demonstration

Gas-assisted gravity drainage (GAGD) is an effective method for oil recovery.

Investigation of Emulsion Flow in Steam-Assisted Gravity Drainage

SPE Journal ◽  
2013 ◽  
Vol 18 (03) ◽  
pp. 440-447 ◽  
Author(s):  
C.C.. C. Ezeuko ◽  
J.. Wang ◽  
I.D.. D. Gates
Keyword(s):  
Experimental Data ◽  
Numerical Simulation ◽  
Oil Recovery ◽  
Vital Role ◽  
Gravity Drainage ◽  
Steam Assisted Gravity Drainage ◽  
Emulsion Flow ◽  
Very High ◽  
Effective Representation

Summary We present a numerical simulation approach that allows incorporation of emulsion modeling into steam-assisted gravity-drainage (SAGD) simulations with commercial reservoir simulators by means of a two-stage pseudochemical reaction. Numerical simulation results show excellent agreement with experimental data for low-pressure SAGD, accounting for approximately 24% deficiency in simulated oil recovery, compared with experimental data. Incorporating viscosity alteration, multiphase effect, and enthalpy of emulsification appears sufficient for effective representation of in-situ emulsion physics during SAGD in very-high-permeability systems. We observed that multiphase effects appear to dominate the viscosity effect of emulsion flow under SAGD conditions of heavy-oil (bitumen) recovery. Results also show that in-situ emulsification may play a vital role within the reservoir during SAGD, increasing bitumen mobility and thereby decreasing cumulative steam/oil ratio (cSOR). Results from this work extend understanding of SAGD by examining its performance in the presence of in-situ emulsification and associated flow of emulsion with bitumen in porous media.

scholarly journals DEVELOPMENT AND OPTIMIZATION OF GAS-ASSISTED GRAVITY DRAINAGE (GAGD) PROCESS FOR IMPROVED LIGHT OIL RECOVERY

2004 ◽  
Author(s):  
Dandina N. Rao ◽  
Subhash C. Ayirala ◽  
Madhav M. Kulkarni ◽  
Amit P. Sharma
Keyword(s):  
Oil Recovery ◽  
Gravity Drainage ◽  
Light Oil

scholarly journals The Analysis for the Effect of Effective Compressibility on Oil Recovery in Polymer Flooded Heterogeneous Reservoir

2014 ◽  
Vol 47 (3) ◽  
pp. 247-254
Author(s):  
Soohyun Baek ◽  
Woodong Jung ◽  
Wonmo Sung ◽  
Junwoo Seo
Keyword(s):  
Oil Recovery ◽  
Heterogeneous Reservoir

Numerical Simulation of Thermal Solvent Replacing Steam under Steam Assisted Gravity Drainage SAGD Process

2010 ◽  
Author(s):  
Weiqiang Li ◽  
Daulat D. Mamora
Keyword(s):  
High Temperature ◽  
Oil Recovery ◽  
Oil Sands ◽  
Steam Injection ◽  
Thermal Recovery ◽  
Production Performance ◽  
Gravity Drainage ◽  
Steam Assisted Gravity Drainage ◽  
Recovery Technique ◽  
Simulation Results

Abstract Steam Assisted Gravity Drainage (SAGD) is one successful thermal recovery technique applied in the Athabasca oil sands in Canada to produce the very viscous bitumen. Water for SAGD is limited in supply and expensive to treat and to generate steam. Consequently, we conducted a study into injecting high-temperature solvent instead of steam to recover Athabasca oil. In this study, hexane (C6) coinjection at condensing condition is simulated using CMG STARS to analyze the drainage mechanism inside the vapor-solvent chamber. The production performance is compared with an equivalent steam injection case based on the same Athabasca reservoir condition. Simulation results show that C6 is vaporized and transported into the vapor-solvent chamber. At the condensing condition, high temperature C6 reduces the viscosity of the bitumen more efficiently than steam and can displace out all the original oil. The oil production rate with C6 injection is about 1.5 to 2 times that of steam injection with oil recovery factor of about 100% oil initially-in-place. Most of the injected C6 can be recycled from the reservoir and from the produced oil, thus significantly reduce the solvent cost. Results of our study indicate that high-temperature solvent injection appears feasible although further technical and economic evaluation of the process is required.

An ANN model to predict oil recovery from a 5-spot waterflood of a heterogeneous reservoir

2021 ◽  
pp. 110012
Author(s):  
Shams Kalam ◽  
Usama Yousuf ◽  
Sidqi A. Abu-Khamsin ◽  
Umair Bin Waheed ◽  
Rizwan Ahmed Khan
Keyword(s):  
Oil Recovery ◽  
Ann Model ◽  
Heterogeneous Reservoir
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