Research and Development of High-Performance Section Milling Tool for Φ139.7-mm Casing

Tang, Ming; Li, Huajun; He, Shiming; Jiang, Miao; Huang, Bing; He, Lin; Zhou, Xiong

doi:10.1007/s13369-022-06855-w

Cited by 3 publications

(2 citation statements)

References 35 publications

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“…The cutting force between the cutter and casing, cutting torque, and speed determine the cutting efficiency and cutting quality of offshore casing cutting operations. Tang et al optimized the structure and shape of the cutting tooth arrangement through LS-DYNA simulation, thereby improving the efficiency of casing cutting [31]. Bondor P et al studied how cutting speed affects parameters such as cutting force, cutting temperature, tool life, wear mechanisms, and chip formation through finite element simulation [32].…”

Section: Analysis Of Influencing Factors On the Cutting Efficiency Of...mentioning

confidence: 99%

Modeling and Research on Offshore Casing Cutting of Hydraulic Internal Cutting Device

Sun,

Tian,

Jin

et al. 2024

JMSE

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A mechanical model for offshore casing cutting based on the field application of a mechanical cutting device in the South China is presented in this paper. The proposed model includes the calculation of the piston acting on the cutter and the calculation of the cutting torque and wellhead driving torque. The influence of structural parameters on cutting extension distance, cutting torque, wellhead driving torque, and the proportion of cutting torque to wellhead driving torque are analyzed. The required extension distance is related to piston displacement and cutter face angle, the cutter face angle and cutting depth (water depth) have obvious influence on the cutting torque and wellhead driving torque, and the drilling revolution affects the inertia torque and wellhead driving torque. Since the proportion of cutting torque to wellhead driving torque decreased with the increase in the cutting depth, we cannot determine whether the casing cutting is completed based on the sudden decrease in the wellhead driving torque with cutting depths greater than 800 m. The numerical simulation results of the cutting tool cutting the casing show that if the revolution speed is too high, the initial cutting melting of the casing may affect the cutting force, and it is recommended to increase the rake angle as much as possible within a certain range. The field example shows the limitation of judging casing cutting by a sudden drop in torque.

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Section: Analysis Of Influencing Factors On the Cutting Efficiency Of...mentioning

confidence: 99%

Modeling and Research on Offshore Casing Cutting of Hydraulic Internal Cutting Device

Sun,

Tian,

Jin

et al. 2024

JMSE

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“…Theoretical research on window sidetracking has mainly focused on section mills. Fluid mechanics simulation and dynamic simulation are used to optimize the flow channel, blade arrangement, and cutting teeth of the section mill to improve the cutting and forging milling efficiency of the section mill and avoid the formation of iron wire and winding milling tools during section milling, which leads to downhole complex accidents such as sticking [23][24][25]. The structure of the cone-milling tool is simple, and the operation process is mature.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Application of Windowing for High-Grade Steel Thick-Wall Casing in Ultradeep Wells: A Case Study of ST102 Well

Zhang,

Tang,

et al. 2024

J. Phys.: Conf. Ser.

Self Cite

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Windowing processes in ultradeep wells (> 7000 m) with high steel grade (TP155V) and thick-wall (15.83 mm) casing not only face complex underground environments with high temperature and pressure but also have the difficulty of long operation time and high cost. To improve the success rate and operational efficiency, CAE software was used to establish the casing windowing side-drilling simulation model and optimize the windowing milling cone. Field applications were used to further demonstrate the simulation results. The main conclusions are as follows. The simulation shows that the milling shoulder and the outer circle of the cone top are the main working faces in window opening and window repair. The conical milling cone has the largest windowing stress, highest windowing efficiency, and regular shape of the window. A casing with a depth of 7473 m, wall thickness of 15.83 mm, and steel grade TP155V was successfully windowing using six conical milling cone in the ST102 well, taking 51.76 h, and generating 94 kg iron chips in total; the average milling speed was 0.06 m/h; The casing windowing progress can be determined by observing the return state of the cuttings. ST102 well set three records in China for the deepest drilling depth, highest steel grade, and thickest wall thickness.

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Research and Application of Windowing for High-Grade Steel Thick-Wall Casing in Ultradeep Wells

Ming,

Guangfu,

Shiming

et al. 2024

Arab J Sci Eng

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Research and Development of High-Performance Section Milling Tool for Φ139.7-mm Casing

Cited by 3 publications

References 35 publications

Modeling and Research on Offshore Casing Cutting of Hydraulic Internal Cutting Device

Modeling and Research on Offshore Casing Cutting of Hydraulic Internal Cutting Device

Simulation and Application of Windowing for High-Grade Steel Thick-Wall Casing in Ultradeep Wells: A Case Study of ST102 Well

Research and Application of Windowing for High-Grade Steel Thick-Wall Casing in Ultradeep Wells

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