An Experimental Study on Vibration Characteristics of Horizontal Well Completion String

doi:10.11885/j.issn.1674-5086.2019.10.16.03

Abstract

Abstract: In order to explore the vibration response mechanism of the completion string under the action of gas, the horizontal well completion string vibration test was carried out under the open well condition. PE pipe was used to simulate completion string, transparent acrylic pipe was used to simulate completion casing, and Froude similarity criterion was used for dimension scaling. The horizontal and vertical vibration responses of completion string is tested based on strain gauge test technology, and the strain, displacement response and vibration modes of the string were analyzed by modal analysis method. Through the finite element software analysis of the natural frequency of the string and the comparison with the experimental vibration frequency, it is found that the vibration frequency of the string is close to the third-order natural frequency and resonance occurs. The response stress, displacement and vibration of the test string system are large in the bending section. The vibration frequency of the string in the horizontal direction and the vertical direction is consistent with the mode.

Key words: completion string, open well condition, vibration response, modal analysis, horizontal well

CLC Number:

TE257

HUANG Liang, WANG Guorong, XU Jing, WEI Anchao, JIA Duping. An Experimental Study on Vibration Characteristics of Horizontal Well Completion String[J]. 西南石油大学学报(自然科学版), 2020, 42(5): 170-178.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.11885/j.issn.1674-5086.2019.10.16.03

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