Field and Numerical Simulation Study on Stereoscopic Network Development at Later Cyclic Steam at Thick Heavy-oil Reservoir

2013 ◽  
Author(s):  
Lu Sun ◽  
Yuetian Liu ◽  
Minfeng Chen ◽  
Xiaofeng Li ◽  
Hairu Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Study ◽  
Heavy Oil ◽  
Oil Reservoir ◽  
Network Development ◽  
Heavy Oil Reservoir

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

Study on Water Cone Behavior in Heavy Oil Reservoir with Bottom Water through Numerical Simulation

2019 ◽  
Vol 42 (15) ◽  
pp. 1809-1820 ◽  
Author(s):  
Wang Kai ◽  
Zhou Wensheng ◽  
Li Ke ◽  
Liu Chen ◽  
Geng Yanhong ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Heavy Oil ◽  
Bottom Water ◽  
Oil Reservoir ◽  
Heavy Oil Reservoir

scholarly journals Study on Viscosity Reducer Flooding Technology for Deep Low Permeability Extra Heavy Oil Reservoirs

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Xiaopeng Cao ◽  
Zupeng Liu ◽  
Yong Yang ◽  
Shiming Zhang ◽  
Yahui Bu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Crude Oil ◽  
Heavy Oil ◽  
Thermal Recovery ◽  
Water Soluble ◽  
Viscosity Reduction ◽  
Low Permeability ◽  
Oil Reservoir ◽  
Viscosity Reducer ◽  
Heavy Oil Reservoir

Deep low permeability extra heavy oil reservoir has the characteristics of high formation pressure, high crude oil viscosity, and low permeability. Conventional steam injection thermal recovery has poor viscosity reduction performance and low productivity of a single well, which makes it difficult to develop this type of heavy oil reservoir. In this paper, core flooding experiment and microvisualization equipment were used to study the mechanism of improving the recovery of deep extra heavy oil by using water-soluble viscosity reducer; the realization of water-soluble viscosity reducer in numerical simulation was achieved by using nonlinear mixing rule; the reservoir numerical simulation model of water-soluble viscosity reducer displacement in test well group was established to optimize the development technical parameter of water-soluble viscosity reducer. The results show that compared with waterflooding, the oil displacement efficiency of water-soluble viscosity reducer is increased by 12.7%; water-soluble viscosity reducer can effectively reduce the viscosity of extra heavy oil, under the same temperature and permeability, the higher the concentration of viscosity reducer, the better the viscosity reduction effect, and the smaller the pressure gradient required at the same injection rate; the main mechanism of water-soluble viscosity reducer for enhancing oil recovery is to form oil in water emulsion, which can reduce the viscosity and interfacial tension of crude oil and reduce the residual oil saturation; in the pilot well group, the optimized injection concentration of water-soluble viscosity reducer is 3%, and the optimal injection amount of water-soluble viscosity reducer solution is 50 t/d; water-soluble viscosity reducer displacement was implemented in the pilot well group, the average daily oil of well group was increased from 1.8 t/d to 7.34 t/d, and the pilot well group has achieved good development performance.

Influence Factor Research of Artificial-Interlayer Shape in Bottom-Water Heavy Oil Reservoir

2012 ◽  
Vol 524-527 ◽  
pp. 1245-1251
Author(s):  
Fu Lin Wang
Keyword(s):  
Numerical Simulation ◽  
Heavy Oil ◽  
Bottom Water ◽  
Influence Factor ◽  
Simulation Method ◽  
Oil Reservoir ◽  
Oil Viscosity ◽  
Numerical Simulation Method ◽  
Volume Viscosity ◽  
Heavy Oil Reservoir

Artificial barrier morphology distribution mechanism and the EOR factors of he heavy oil reservoir with bottom water is be researched, Through numerical calculation and numerical simulation method. The model for calculating the height of the artificial-interlayer with curvilinear side surface is established. This model quantitatively describes the relationship between the artificial-interlayer height and oil yield, reservoir thickness, radial distance from well axis, reservoir permeability and crude oil viscosity. Maximum artificial-interlayer height and radius, the artificial-interlayer heights at different radial distances can be obtained according to this model. Through the case, the characteristics of artificial-interlayer form are analyzed, and rules of artificial-interlayer conformation are obtained when artificial-interlayer liquid with different volume, viscosity and race are injected. The further research are carried out through numerical simulation method, and the theoretical results are be Compared and verified which deepen the study of artificial-interlayer shape influence factor . Results show that: the volume and position of injected gel have more influence on development effect is obviously, the interlayer is designed 3M over the oil-water interface and thickness perforated is 6m is better, which provides a reference for the development of bottom-water reservoir.

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