Numerical Simulation Research on Locations Optimization of Horizontal Well to Exploit Remaining Oil of Lateral Accretion Interbed after Polymerflooding

2013 ◽  
Vol 318 ◽  
pp. 460-464
Author(s):  
Tao Ping Chen ◽  
Chao Jiang ◽  
Li Li Wang
Keyword(s):  
Numerical Simulation ◽  
Horizontal Well ◽  
Conceptual Models ◽  
Vertical Direction ◽  
Simulation Software ◽  
Residual Oil ◽  
Simulation Research ◽  
Vertical Well ◽  
Remaining Oil ◽  
Injection Water

Conceptual models of lateral accretion interbed (the point bar lateral sandbody model contains three lateral accretion interbed .And the lateral accretion interbeds extends to two-thirds of reservoir thickness)is builded making use of numerical simulation software Eclipse. The effect of injection water on water drive recovery is analysised. The location of remaining oil enrichment is also determined. Horizontal well is placed in remaining oil enrichment and its vertical direction and horizontal hole section are optimization. Horizontal well and vertical well are combined to exploit residual oil. Results indicates that: Injectiong water in the direction of lateral accretion interbed can obtain higher water drive recovery than in the opposite direction. The closer to top the horizontal well is , the greater recovery enhancement values is.Horizontal hole section starts from the location of four-fifths of lateral sandbody I left and terminats nine-tenths of lateral sandbody III, where the recovery is highest. Horizontal well is placed after vertiacal well injecting polymer in which recovery can increase 9.8%. According to numerical simulation optimization results, we have made a physical model with lateral accretion interbeds to do experiments. Numerical simulation results agree with experimental results. Hence horizontal and vertical well uinting together can exploit the remaining oil of lateral accretion interbed effectively .

Numerical Simulation Research on Horizontal Well to Exploit Remaining Oil of Lateral Accretion Interbed after Polymerflooding

2013 ◽  
Vol 807-809 ◽  
pp. 2568-2572 ◽  
Author(s):  
Tao Ping Chen ◽  
Chao Jiang ◽  
Li Li Wang ◽  
Feng Chun Ma
Keyword(s):  
Numerical Simulation ◽  
Horizontal Well ◽  
Simulation Research ◽  
Vertical Well ◽  
Wedge Shape ◽  
Remaining Oil ◽  
Simulation Results

Directing at lateral accretion interbed layers, wedge-shape and pinch-out models are used to analysis polymerflooding development effect using Eclipse numerical simulation soft.. And the distribution location of remaining oil is given after waterflooding and polymerflooding.The recovery is provided including two parts which are lateral accretion interbed and non-lateral accretion interbed. Horizontal well and vertical well are united to exploit remaining oil, in which case, the vertical and horizontal positions of horizontal well are optimized.Numerical simulation results indicate that polymerflooding recovery increasement value is respectively 11.47% and 11.34% about wedge-shape and pinch-out models and polymerflooding works well. The closer to top the horizontal well is , the greater recovery enhancement values is for wedge-shape and pinch-out models. Horizontal hole section starts from the location of seven-eighths of lateral sandbody I left and terminats seven-eighths of lateral sandbody IV, where the recovery is highest, which are respectively 6.69% and 5.61%.

UDEC Numerical Simulation Research of Mining Overlying Strata Movement Regulation

2013 ◽  
Vol 448-453 ◽  
pp. 3884-3887 ◽  
Author(s):  
You Ling Fang
Keyword(s):  
Numerical Simulation ◽  
Vertical Direction ◽  
Simulation Software ◽  
Simulation Research ◽  
Fracture Angle ◽  
Strata Movement ◽  
Object A ◽  
Working Face ◽  
Overlying Strata Movement ◽  
Overlying Strata

The process of fractures developing of coal and rock and overlying strata movement is a temporal dynamic evolution process. In this paper, based on the research object a working face of a mine, using the UDEC numerical simulation software to research the movement of the working face upper strata in mining process, the results showed that the overlying strata forms "vertical three zones" in the vertical direction from bottom to top. Overlying strata above the goaf displays a fracture table with a trapezoid shape entirely; the cut side of the fracture angle is slightly larger than the working face side of the fracture angle. Numerical simulation calculation of the height of two zones will get a close consistent result to empirical formula. The conclusions have important guiding significance for reasonable arrangement of the gas exploitation.

Stability Effect to Railway Tunnel of Underground Mining Using ABAQUS

2011 ◽  
Vol 361-363 ◽  
pp. 236-240
Author(s):  
Li Wei Yuan ◽  
Long Zhe Jin
Keyword(s):  
Numerical Simulation ◽  
Decision Making ◽  
Underground Mining ◽  
Vertical Direction ◽  
Theory Analysis ◽  
Railway Tunnel ◽  
Simulation Research ◽  
Strata Movement ◽  
Ore Body ◽  
Stability Effect

The paper used the software ABAQUS to the numerical simulation research of the strata movement process during the underground mining according to the actual characteristics of certain mine. Through the research and theory analysis of numerical simulation, the numerical value of deformation in horizontal and vertical direction of the strata movement at the railway tunnel is included. It showed that the exploitation of No.2 ore body would not affect the safety of railway tunnel nearly the mine, which provide decision-making basis for the railway departments and mining enterprises, reduce the waste of resources.

Numerical Simulation Research on Improving Effect of Steam Flooding by Using High Permeability Belt

2013 ◽  
Vol 483 ◽  
pp. 635-638 ◽  
Author(s):  
Yang Zhao ◽  
Shu Tao Lu ◽  
Han Gao ◽  
Ying Gong
Keyword(s):  
History Matching ◽  
Horizontal Well ◽  
Research Result ◽  
Vertical Direction ◽  
High Permeability ◽  
Simulation Research ◽  
Steam Flooding ◽  
Vapor Injection ◽  
Liaohe Oilfield ◽  
Trajectory Length

Development of the reservoir in A block of Liaohe Oilfield present compound rhythmreservoirs, high permeability layer among the reservoir, according to the realsituation that high permeability layer exist, for the efficient utilization of producingremaining oil by horizontal well, that need to optimize locations, trajectory, lengthof horizontal well. A fine geological model which reflects the characteristicsof the reservoir in studied area was constructed with Petrel and CMG software. Optimizelocations, trajectory, length of horizontal well and vapor injection parametersupon the history matching. The research result shows that steam override, afterreaching high permeability layer, the steam makes fast breakthrough in highpermeability layer, keeping on upward heating the reservoirs with large contactarea. Finally the reservoirs can be uniformly swept in the vertical direction. Thenumerical simulation accurately predicts the optimized horizontal well can effectiveexpoit the residual oil.

scholarly journals Influence factors and effect prediction model of the tertiary migrations of remaining oil

2020 ◽  
Author(s):  
Rongda Zhang ◽  
Guanghui Yang ◽  
Kang Ma ◽  
Zhichao Song ◽  
Junjian Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Influence Factors ◽  
Simulation Method ◽  
High Water ◽  
Residual Oil ◽  
Prediction Formula ◽  
Control Factors ◽  
Remaining Oil ◽  
Water Cut ◽  
Surface Analysis Method

Abstract Worldwide, for older fields that are in the late stages of production period, production wells that lose production value due to high water cut are usually shut down. In this situation, the remaining oil in the reservoir will be re-enriched under the influence of gravity differentiation and capillary forces. Production practices find when the production well is closed for a long time and then opened for restarting production, the water cut drops dramatically and the output rise sharply. In order to anticipate the effects of enrichment of remaining oil in the reservoir, this paper analyzes 10 influencing factors respectively. Secondly, change of water cut before and after shut-in is used as the evaluation index of residual oil enrichment effect. Numerical simulation method is used to simulate the influence of different factors on the effect of external migrations of remaining oil at different levels. Grey correlation analysis is utilized to rank the correlation of 10 factors on residual oil enrichment and then we can get the main controlling factors affecting residual oil enrichment. Finally, the response surface analysis method is used to establish a 5-factor 3-level model, and the corresponding prediction results are obtained through numerical simulation experiments. The main control factors are fitted to obtain the prediction formula of the remaining oil enrichment effect. As a result, we can use the prediction formula to forecast the enrichment effect of remaining oil under different reservoir parameters.

Numerical Simulation Research on Deep Soft Rock Roadway

2012 ◽  
Vol 256-259 ◽  
pp. 1439-1442
Author(s):  
Bin Zhang ◽  
Xiang Lian Yu ◽  
Ning Liu ◽  
Feng Zhu
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Soft Rock ◽  
Simulation Software ◽  
Simulation Research ◽  
Finite Element Software ◽  
Support Measure ◽  
Roadway Support ◽  
Soft Rock Roadway ◽  
Rock Roadway

The soft rock roadway support is one of difficult problems in the mineral engineering. For making the stress and strains of support system to be effective forecasted in the process of roadway support. The Adina finite element software is used to do numerical simulation about the strains of the supports system in the process of the Hama mountain roadway, and compare with the date which was got from the field monitoring. The date comparison shows that the results of simulation is basic anastomotic with the examination at present. So that it can be well predicted the effectiveness of the support measure when using the finite element simulation software –Adina.

The Simulation Study on Heat Dissipation of High Power LED Based on the Natural Convection

2013 ◽  
Vol 475-476 ◽  
pp. 1454-1458
Author(s):  
Yong Zhong ◽  
Ting Yong Fang ◽  
Tao Lin Zhang
Keyword(s):  
Numerical Simulation ◽  
Temperature Distribution ◽  
High Power ◽  
Heat Dissipation ◽  
Simulation Software ◽  
Air Flow Rate ◽  
Simulation Research ◽  
Eddy Simulation ◽  
Large Eddy ◽  
High Power Led

In this paper, we studied on the heat dissipation of high power LED in numerical simulation by the large eddy simulation numerical methods with the simulation software FDS, and studied the temperature distribution and heat pipe cooling respectively, etc.. We did the numerical simulation research on the heat dissipation of high power LED fin by numerical simulation, and obtained the numerical solution of all the LED temperature field and flow field. The air flow rate near the radiating surface was low; the fin surface temperature distribution was basic uniform and closed to the temperature of the constant heat reservoir. The analysis of the results of numerical simulation provided references for the improvement of optimal design of LED radiator.

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