Holding pressure is an important factor affecting the rate of penetration (ROP) in horizontal wells. The holding pressure problem is directly and effectively solved by using the vibrating drag-reduction tools. In this paper, the finite element method is used to model the drilling process in a horizontal well with and without rotary percussion. The established model is based on a rotary percussion tool driven by PDM. Based on the simulation results, the authors compared and analyzed the impact of rotary percussion on the weight-on-bit (WOB), torque, acceleration and ROP in drilling process. The results show that the rotary percussion tool can effectively solve the problem of the holding pressure, increase the overall level and the fluctuation range of WOB, and improve ROP in the drilling process. It also increases the torque-on-bit and axial acceleration parameters. The analysis results can provide theoretical guidance for the parameter design and type selection of tools under different working conditions.
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Acknowledgment
The authors would like to acknowledge the academic and technical support provided by the China University of Petroleum (East China). This paper is supported by the Major Science and Technology Project of CNPC “Research on Efficient Exploration and Development Theory and Key Technologies of Deep Oil and Gas in Tarim Basin” (No. ZD2019-183-005).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 128–131 January – February, 2022.
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Liang, D., Guan, Z., Wang, J. et al. Simulation Analysis of Drilling Process in Horizontal Wells with Mechanical Rotary Percussion Tool. Chem Technol Fuels Oils 58, 114–121 (2022). https://doi.org/10.1007/s10553-022-01358-8
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DOI: https://doi.org/10.1007/s10553-022-01358-8