Application of a Steam Assisted Gravity Drainage Model to Deviated Wells in a Dipping Heavy Oil Reservoir

2016 ◽  
Author(s):  
K. Ramasray ◽  
L. E. Sobers
Keyword(s):  
Heavy Oil ◽  
Gravity Drainage ◽  
Oil Reservoir ◽  
Steam Assisted Gravity Drainage ◽  
Heavy Oil Reservoir ◽  
Deviated Wells

Exploration Method for Extra Heavy Oil Reservoir with Top Water

2011 ◽  
Vol 243-249 ◽  
pp. 6237-6240
Author(s):  
You Jun Ji ◽  
Jian Jun Liu ◽  
Nelly Zhang
Keyword(s):  
Heavy Oil ◽  
Volume Fraction ◽  
Thermal Recovery ◽  
Gravity Drainage ◽  
Oil Reservoir ◽  
Steam Assisted Gravity Drainage ◽  
Production Parameters ◽  
Liaohe Oilfield ◽  
Modeling Software ◽  
Heavy Oil Reservoir

For an extra heavy oil reservoir with top water in Liaohe Oilfield, it is inefficiently and hard to produce by conventional thermal recovery. In this regard, the numerical modeling software – CMG is used to analyze the recovery of this reservoir by Steam-Assisted Gravity Drainage (SAGD) and Steam and incondensable gas-assisted gravity push (SAGP). The production indicators, development effects and distribution of field parameters of these two techniques are contrasted and analyzed, and the injection and production parameters for application of SAGP in wells are optimized. The study shows that, for this extra heavy oil reservoir with top water, SAGP is more effective than SAGD, and the former can reduce the steam demand, improve the oil/steam ratio (OSR), prolong the development and enhance the recovery. It is recommended, during application of SAGP on site, to inject nitrogen at volume fraction of 30-40% and when the steam chamber expands to a section with 1/3 net pay thickness away to the top water.

scholarly journals Numerical Simulation Study on Steam-Assisted Gravity Drainage Performance in a Heavy Oil Reservoir with a Bottom Water Zone

Energies ◽  
2017 ◽  
Vol 10 (12) ◽  
pp. 1999 ◽  
Author(s):  
Jun Ni ◽  
Xiang Zhou ◽  
Qingwang Yuan ◽  
Xinqian Lu ◽  
Fanhua Zeng ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Study ◽  
Heavy Oil ◽  
Bottom Water ◽  
Gravity Drainage ◽  
Oil Reservoir ◽  
Steam Assisted Gravity Drainage ◽  
Water Zone ◽  
Heavy Oil Reservoir

scholarly journals Experimental Study on the Process of eMSAGP

2021 ◽  
Vol 5 (1) ◽  
pp. 1-13
Author(s):  
Zhang S
Keyword(s):  
Heavy Oil ◽  
Physical Simulation ◽  
Pressure Effect ◽  
Gravity Drainage ◽  
Oil Reservoir ◽  
Oil Sand ◽  
Steam Assisted Gravity Drainage ◽  
Speed Up ◽  
Heavy Oil Reservoir ◽  
Simulation Results

While SAGD (Steam Assisted Gravity Drainage) has been successfully deployed in recovering heavy oil/oil sand reservoirs, it suffered from low OSR (Oil-Steam-Rate) and chamber growth rate in producing super heavy oil. The SAGP technology is to inject Non-Condensable Gas (NCG) into the reservoir with steam in the SAGD process. By partial pressure effect of NCG, SAGP reduces the heat loss to overburden, thus greatly increasing OSR and reducing the demand for steam. However, it still faces the challenge of uneconomic oil rate. Introducing infill well and operating it in flooding manner, enhanced Modified Steam Assisted Gas Push (eMSAGP) can significantly speed up the growth of steam chamber and improve oil production. This work presented the physical simulation results of eMSAGP and evaluated the feasibility of its application in super heavy oil reservoir.

MONITORING CO2 SATURATION USING THREE-DETECTOR PNC LOGGING TECHNIQUE FOR CO2 EOR IN HEAVY OIL RESERVOIR

2019 ◽  
Author(s):  
Feng Zhang ◽  
Quanying Zhang ◽  
Lili Tian ◽  
Xiaoyang Zhang ◽  
Qian Chen ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Oil Reservoir ◽  
Heavy Oil Reservoir ◽  
Co2 Eor
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