Petroleum Exploration and Development >
Method of suspender line trajectory design
Received date: 2021-01-21
Revised date: 2021-08-15
Online published: 2021-10-25
Supported by
National Science and Technology Major Project(2016ZX05060-014);PetroChina Major Science and Technology Project(ZD2019-183-005)
Based on the mechanical model of an elastic rod, a new trajectory design method was established. The advantages of the suspender line trajectory in reducing drag and torsion were compared, and the main controlling factors of drag and torque and their influence rules were analyzed. Research shows that the suspender line trajectory reduces drag and torque more effectively than the conventional trajectory in a certain parameter interval and has more controllable parameters than that of the catenary trajectory. The main factors affecting the drag reduction and torque reduction of the suspender line trajectory include the friction coefficient, vertical distance, horizontal distance, and deviation angle at the initial point in the suspended section. The larger the friction coefficient and deviation angle, the less the drag reduction and torque reduction. The suspender line trajectory has the best drag reduction effect when the horizontal and vertical distances are more than 3000 m and the ratio is close to 1.5. The drag in sliding drilling can be reduced up to 60%, and the torque in rotary drilling can be reduced by a maximum of 40%. Therefore, the trajectory design of the suspender line has unique application prospects in deep extended-reach wells.
Fan YU , Genlu HUANG , Zhiyong HAN , Hongjian NI , Jing LI , Wei LI . Method of suspender line trajectory design[J]. Petroleum Exploration and Development, 2021 , 48(5) : 1208 -1217 . DOI: 10.1016/S1876-3804(21)60103-9
| [1] | EDISON J E. Engineering planning and supervision of directional drilling operations. Journal of Petroleum Technology, 1957, 9(11):16-19. |
| [2] | WALSTROM J E, HARVEY R P, EDDY H D. A comparison of various directional survey models and an approach to model error analysis. Journal of Petroleum Technology, 1972, 24(8):935-943. |
| [3] | WILSON G J. An improved method for computing directional surveys. Journal of Petroleum Technology, 1968, 20(8):871-876. |
| [4] | CRAIG J T, RANDALL B V. Directional survey calculation. Petroleum Engineer International, 1976, 48(4):38-54. |
| [5] | TAYLOR H L, MASON M C. A systematic approach to well surveying calculations. SPE Journal, 1972, 12(6):474-488. |
| [6] | ZAREMBA W A. Directional survey by the circular arc method. SPE Journal, 1973, 13(1):5-11. |
| [7] | BLYTHE E. J. Computing accurate directional surveys. World Oil, 1975, 181(2):25-28. |
| [8] | LIU Xiushan. Borehole trajectory uncertainty and its characterization. Petroleum Exploration and Development, 2019, 46(2):391-396. |
| [9] | HONG Difeng, TANG Xueping, GAO Wenkai, et al. A new calculation approach of wellbore separation factor based on the relative position of adjacent wells. Petroleum Exploration and Development, 2020, 47(1):186-192. |
| [10] | LIU Xiushan, WANG Chao. Analytic description of spatial-arc wellbore trajectory. Acta Petrolei Sinica, 2014, 35(1):134-140. |
| [11] | HAN Zhiyong. Design and calculation of directional drilling. 2nd ed. Dongying: China University of Petroleum Press, 2007. |
| [12] | YI Xianzhong, SONG Shunping, CHEN Lin, et al. Progress of research on drillstring backing pressure effect in complex structure well. China Petroleum Machinery, 2013, 41(5):100-104, 110. |
| [13] | MIRHAJ S A, KAARSTAD E, AADNOY B S. Improvement of torque-and-drag modeling in long-reach wells. Modern Applied Science, 2011, 5(5):10-28. |
| [14] | LIU Xiushan, GUO Jun. Description and calculation of the well path with spatial arc model. Natural Gas Industry, 2000, 20(5):44-47. |
| [15] | HAN Zhiyong. New control mode for well trajectory on circular arc with inclined planes. Petroleum Drilling Techniques, 2004, 32(2):1-3. |
| [16] | LIU Xiushan, SU Yinao. Evolution pattern and control mode of well deviation for circular-arc trajectories in space. Petroleum Exploration and Development, 2014, 41(3):354-358. |
| [17] | ZHENG Jiying. Calculation method of borehole location in directional wells. Journal of Jianghan Petroleum Institute, 1981, 3(1):71-87. |
| [18] | XU Ling, LU Gang, ZHAO Hui. Numerical method for deviational survey by cylinder helix method. Exploration Engineering (Rock &Soil Drilling and Tunneling), 2008, 35(5):1-4. |
| [19] | LIU Xiushan, SHI Zaihong, FAN Sen. Natural parameter method accurately calculates well bore trajectory. Oil & Gas Journal, 1997, 95(4):90-92. |
| [20] | LU Gang, BAO Jihong. Numerical approaches of natural curve method in inclination survey. Petroleum Geology and Engineering, 2008, 22(1):72-74. |
| [21] | HAN Zhiyong. Method of non-dimensional design of cautionary shape profile of directional well. Oil Drilling & Production Technology, 1997, 19(4):13-16. |
| [22] | LIU Xiushan. Study on the methods of planning a catenary profile of wellbore trajectory. Natural Gas Industry, 2007, 27(7):73-75. |
| [23] | LIU Xiushan. Three-dimensional catenary profile design method. Oil Drilling & Production Technology, 2010, 32(6):7-10. |
| [24] | XUE Yun. Modeling and analysis of nonlinear mechanics of a super-thin elastic rod. Shanghai: Shanghai University, 2004. |
| [25] | LIU Yanzhu. Nonlinear mechanics of thin elastic rod. Beijing: Tsinghua University Press, 2006. |
| [26] | LIU Xiushan. The geometry of wellbore trajectory. Beijing: Petroleum Industry Press, 2006. |
| [27] | YU Fan, HUANG Genlu, NI Hongjian, et al. Analysis of the main factors affecting bottom hole assembly re-entry into main hole in forward drilling of fishbone wells. Journal of Petroleum Science and Engineering, 2020, 189:107018. |
| [28] | LI Wei, LIU Wenchen, ZHOU Xianhai, et al. 3D horizontal wellbore trajectory optimization design method in the Fuling shale gas field. Journal of Petroleum Science and Engineering, 2018, 46(2):17-23. |
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