一种井下电缆随管柱自动同步伸缩补偿装置

By designing an automatic synchronous expansion and contraction compensation device for the downhole cable along with the tubing string, and utilizing a support frame and spring structure to achieve automatic synchronous expansion and contraction compensation of the cable, the problem of cable breakage was solved, ensuring the normal operation of large-volume intelligent water injection.

CN122407092APending Publication Date: 2026-07-17ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP
Filing Date
2026-06-09
Publication Date
2026-07-17

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Abstract

本发明公开了一种井下电缆随管柱自动同步伸缩补偿装置。包括：管柱接头本体由可拆卸连接的上管柱接头和下管柱接头组成，在所述管柱接头本体内设有管柱腔；下部支撑架和上部支撑架分别同轴相对设置在所述管柱腔下部和上部；所述下部支撑架和上部支撑架之间设有弹簧；在所述下部支撑架的边缘沿圆周均布设有多个第一绕线筒；在所述上部支撑架的边缘沿圆周均布设有多个第二绕线筒预制内部电缆中部沿上部支撑架和下部支撑架周向绕设，依次穿过对应的第二绕线筒和第一绕线筒，上端和下端分别穿出所述上电缆口和下电缆口，伸出管柱接头本体外部；在所述管柱腔内填充有绝缘油。本发明的有益效果是：能够对井下电缆随管柱自动同步伸缩补偿。
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