EVALUATION OF ALTERNATE WATER-POLYMER INJECTION PARAMETERS USING NUMERICAL SIMULATION

According to the feature of the second oil layer in the west block of Beierxi, this paper investigated the relationship between the permeability contrast and the recovery efficiency, and the relationship between the permeability contrast and the descent range of water cut of polymer flooding, using the numerical simulation. From the comparative analysis of the development effect with different methods of polymer-injection, it got the boundary of the interlayer permeability contrast of the positive and inverted rhythm layer in the second oil layer with the separated zone and separated quality polymer-injection respectively. That provided certain theoretical foundation for carrying on the polymer flooding in the region of interest.

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Study of Rational Water Injection Parameters of Hydraulic Pressing Preventing Outburst Measure Based on Numerical Simulation

Procedia Engineering ◽

10.1016/j.proeng.2011.11.2279 ◽

2011 ◽

Vol 26 ◽

pp. 1097-1103 ◽

Cited By ~ 1

Author(s):

Fang Qian-cheng ◽

Li Zhi-qiang ◽

Zhou Ke-ping

Keyword(s):

Numerical Simulation ◽

Water Injection ◽

Injection Parameters

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Evaluation of Polymer Alternating Waterflooding in Multilayered Heterogeneous Waterflooded Reservoir

MATEC Web of Conferences ◽

10.1051/matecconf/201817104001 ◽

2018 ◽

Vol 171 ◽

pp. 04001

Author(s):

Warut Tuncharoen ◽

Falan Srisuriyachai

Keyword(s):

Numerical Simulation ◽

Viscous Fluid ◽

Polymer Solution ◽

Oil Recovery ◽

High Viscosity ◽

Polymer Flooding ◽

Operating Parameters ◽

Sweep Efficiency ◽

Polymer Injection ◽

Water Breakthrough

Polymer flooding is widely implemented to improve oil recovery since polymer can increase sweep efficiency and smoothen heterogeneous reservoir profile. However, polymer solution is somewhat difficult to be injected due to high viscosity and thus, water slug is recommended to be injected before and during polymer injection in order to increase an ease of injecting this viscous fluid into the wellbore. In this study, numerical simulation is performed to determine the most appropriate operating parameters to maximize oil recovery. The results show that pre-flushed water should be injected until water breakthrough while alternating water slug size should be as low as 5% of polymer slug size. Concentration for each polymer slugs should be kept constant and recommended number of alternative cycles is 2. Combining these operating parameters altogether contributes to oil recovery of 53.69% whereas single-slug polymer flooding provides only 53.04% which is equivalent to 8,000 STB of oil gain.

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Numerical simulation of the influence of fuel temperature and injection parameters on biodiesel spray characteristics

Energy Science & Engineering ◽

10.1002/ese3.429 ◽

2019 ◽

Vol 8 (2) ◽

pp. 312-326 ◽

Cited By ~ 13

Author(s):

Limin Geng ◽

Yanjuan Wang ◽

Jue Wang ◽

Youtao Wei ◽

Chia‐fon F. Lee

Keyword(s):

Numerical Simulation ◽

Fuel Temperature ◽

Spray Characteristics ◽

Injection Parameters

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Numerical Simulation of Polymer Injection in Turbulent Flow Past a Circular Cylinder

Journal of Fluids Engineering ◽

10.1115/1.4004960 ◽

2011 ◽

Vol 133 (10) ◽

Cited By ~ 1

Author(s):

David Richter ◽

Eric S. G. Shaqfeh ◽

Gianluca Iaccarino

Keyword(s):

Numerical Simulation ◽

Circular Cylinder ◽

High Reynolds Number ◽

Turbulent Energy ◽

Viscoelastic Flows ◽

Primary Vortex ◽

Near Wake ◽

Polymer Injection ◽

Newtonian Flows ◽

High Reynolds

Using a code developed to compute high Reynolds number viscoelastic flows, polymer injection from the upstream stagnation point of a circular cylinder is modeled at Re=3900. Polymer stresses are represented using the FENE-P constitutive equations. By increasing polymer injection rates within realistic ranges, significant near wake stabilization is observed. Rather than a turbulent detached shear layer giving way to a chaotic primary vortex (as seen in Newtonian flows at high Re), a much more coherent primary vortex is shed, which possesses an increased core pressure as well as a reduced level of turbulent energy.

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