Mechanism and Feasibility Study of Nitrogen Assisted Cyclic Steam Stimulation for Ultra-Heavy Oil Reservoir

2013 ◽  
Author(s):  
Yong Du ◽  
Yang Wang ◽  
Ping Jiang ◽  
JiJiang Ge ◽  
GuiCai Zhang
Keyword(s):  
Feasibility Study ◽  
Heavy Oil ◽  
Oil Reservoir ◽  
Cyclic Steam Stimulation ◽  
Heavy Oil Reservoir ◽  
Steam Stimulation

Study on Heating Zone and Producing Zone of Cyclic Steam Stimulation with Horizontal Well in Heavy Oil Reservoir

2012 ◽  
Vol 594-597 ◽  
pp. 2438-2441 ◽  
Author(s):  
Shi Jun Huang ◽  
Ping Hu ◽  
Qiu Li
Keyword(s):  
Heavy Oil ◽  
Horizontal Well ◽  
Thermal Recovery ◽  
Oil Reservoir ◽  
Heating Zone ◽  
Oil Viscosity ◽  
Cyclic Steam Stimulation ◽  
Heavy Oil Reservoir ◽  
Critical Viscosity ◽  
Steam Stimulation

In this paper, employing reservoir simulation and mathematical analysis methods, considering typical heavy oil reservoir and fluid thermal properties, the heating and producing shape of thermal recovery with horizontal well for different heavy oil reservoirs including ordinary, extra and super heavy oil are investigated based on the modification of thermal recovery parameters of different viscosity. By introducing heating radius and producing radius and considering the coupling effect of temperature, pressure and oil saturation fields, a quantitative expression between heating radius/producing radius and oil viscosity, formation thickness is presented, so is the impact of oil viscosity on the heating radius. Results shows that for Cyclic Steam Stimulation, the producing radius of horizontal well is bigger than its heating radius for light oil, both of which, however, shrink with higher viscosity. Beyond a critical viscosity, where the heating radius equals to the producing radius, the heating radius of horizontal well would be bigger than its producing radius. More over, the critical viscosity shows tight relationship to the formation thickness.

Cyclic Steam Stimulation Effect on Skin Factor Reviewed Case Study

2016 ◽  
Vol 818 ◽  
pp. 287-290 ◽  
Author(s):  
Wan Rosli Wan Sulaiman ◽  
Azza Hashim
Keyword(s):  
Production Rate ◽  
Heavy Oil ◽  
Development Program ◽  
Thermal Recovery ◽  
Reservoir Rock ◽  
Oil Reservoir ◽  
Oil Viscosity ◽  
Cyclic Steam Stimulation ◽  
Heavy Oil Reservoir ◽  
Steam Stimulation

High oil viscosity is a major concern for recovery from heavy oil reservoir. Introducing heat to the formation has proven to be an effective way to improve mobility. The Heat transfer to the oil and reservoir rock is good for thermal recovery. The thermal recovery involves a well-known technique of cyclic steam stimulation which actually effect the nearby well area. Heavy oil reservoir which uses the thermal technique will experience the change of property. Fula North East (FNE) Sudanese field is located in the north-eastern part of Fula sub-basin. According to the development program of FNE, Bentiu layer (of Bentiu group) is the targeted reservoir where the pressure gradient is 285.65 psi/100m, perforation intervals is 540-533 m, and the average oil production rate of single well by applying the cyclic steam stimulation (CSS) is 236 bbl/d. For well- Q, (one of the hot wells) to void the bottom water the average production rate is 191 bbl/d. A minor change is observed in the key properties of the well when the skin affect is varied.

Optimization of Cyclic Steam Stimulation in Highly Stratified Heavy Oil Reservoir of Middle Magdalena Basin: Moriche Field

2012 ◽  
Author(s):  
Daniel Higuera ◽  
Karen Linnete Pachano Pelaez ◽  
Javier Useche ◽  
Alvaro Jose Serna ◽  
Sidhartha Sur
Keyword(s):  
Heavy Oil ◽  
Oil Reservoir ◽  
Cyclic Steam Stimulation ◽  
Heavy Oil Reservoir ◽  
Steam Stimulation
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