Hydraulic Circulation Test and CFD Analysis of Prestressed Cementing Unit Earth Anchor

Abstract:

In the process of thickened oil thermal recovery, the pre-stress cementing needs to be anchored at the bottom of the casing pipe. And the reliable opening and closing of anchor flukes directly influence the anchoring. In allusion to the problems of how to get the critical value of drilling fluid flow rate of when the anchor flukes begin to open, completely open, begin to close and completely close, whether different nozzles can open or close reliably, getting the corresponding differential pressure and discharge coefficient of the different nozzles, this paper conducts a study from both theory and experiment to obtain the relevant parameters. By simulating the anchor in actual work and dealing with the data, we conclude that: (1) The fluke can open smoothly when the flow rate reaches a certain flow and it can also close smoothly when the flow rate declines. (2) The critical flow rate of the flukes, when two kinds of anchors are with different nozzles, has been acquired. (3) Corresponding differential pressure and discharge coefficient of the different nozzles in different flow rate have been ascertained.

• Periodical: Advanced Materials Research (Volumes 1006-1007)
• Pages: 156-159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1006-1007.156
• Online since: August 2014
• Authors: Ding Li*
• Keywords: CFD, Circulatory Test, Differential Pressure, Discharge Coefficient, Earth Anchor, Thermal Production well

References

[1] Yue Zhang, Heavy Oil Thermal Recovery Technology, Petroleum Industry Press, Bejing, (1999).

[2] Yanqing Li, Qiang Zhang, Thermal Recovery Wells Unit prestressed Anchor, Inner Mongolia Petrochemical Industry, 4(2012).

[3] Hongjun Zhu, Yuanhua Lin, Longhan Xie, Fluent12 Fluid Analysis and Engineering Simulation, Tsinghua University Press, Bejing, (2010).

[4] Jin Feng, Long Jiang, Xi Deng, The Analysis of the Hydraulic Loss of the Turbine Drill Spline and Size Optimization, Petroleum Machinery. 40(2012) 41-44.

[5] Guoqiang Zhang, Fluid Mechanics, Mechanical Industry Press, Bejing, (2006).

[6] Zhongxin Mou, Mingchang Zhang, The Development and Application of Combined casing Prestressed Anchor Tools, Petroleum Machinery. 33(2005).

[7] William C. Lyons. Oil and Gas Engineering Technology Manuals, China Petrochemical Press, Bejing, (2003).