A telescopic tailpipe seat
A liner seat, telescopic technology, applied in the direction of wellbore/well components, earthwork drilling and production, etc., can solve the problems of lost hands, affecting the progress of the project, unable to meet the needs of on-site construction, etc., to achieve enhanced reliability and tight and reliable contact Effect
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[0029] figure 1 Structural sectional view of the telescopic tail tube seat provided for the embodiment of the present invention; figure 2 Schematic diagram of the structure of the annular seat hanging step of the telescopic tail tube seat provided by the embodiment of the present invention; image 3 A structural schematic diagram of the ejection ring of the telescopic tail tube seat provided by the embodiment of the present invention; as Figure 1~3 As shown, a telescopic tail tube seat provided in this embodiment includes a body 1, an upper back ring 2, a lock ring sleeve 4, an annular seat hanging step 7, and a lower back ring 11. The body 1 is hollow and cylindrical structure, the upper back ring 2 and the lower back ring 11 are sleeved on the body 1 respectively, the lock ring sleeve 4 connects the upper back ring 2 and the lower back ring 11 together, and the upper end of the lock ring sleeve 4 is connected to the The upper back ring 2 and the body 1 are fixedly connec...
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