一种油套管防砂扶正器
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGYING ZHAOXIN IND & TRADE CO LTD
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-17
AI Technical Summary
When existing elastic centralizers are used in horizontal wells, the lower spring plate bears the main pressure, causing casing eccentricity, increasing frictional resistance and potentially scratching the casing, affecting cementing quality and wellbore integrity.
A sand-proof centralizer for oil casing is designed. By setting a seal, connecting plate, shielding block and spring plate between the fixed pipe and the rotating sleeve, the rotating sleeve is driven to rotate by the weight, and the shielding block limits the spring plate to ensure its rigidity, reduce the risk of eccentricity, and restore elastic deformation ability when encountering impurities.
It improves the stability and smooth passage of casing in horizontal wells, reduces the risk of casing eccentricity and jamming, and ensures cementing quality and wellbore integrity.
Smart Images
Figure CN122215657B_ABST