一种防提前坐封的液压座封尾管悬挂器
By designing a hydraulically seated tailpipe hanger, the use of sealing components and limit release components prevents the tailpipe hanger from prematurely setting under pressure changes in the well, ensuring that the tailpipe hanger is fixed in the correct position in the wellbore. This solves the problem of tailpipe hanger lowering failure and improves the success rate of lowering.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGYING BAIHUA GASOLINEEUM TECH DEV
- Filing Date
- 2026-01-09
- Publication Date
- 2026-07-17
AI Technical Summary
The existing tailpipe hanger has a problem where pressure changes in the well cause the fixing slips to open prematurely during the lowering process, resulting in the tailpipe being fixed before it has moved to the required working position, leading to lowering failure.
The hydraulic seated tailpipe hanger with anti-premature setting is adopted. The pressure transmission hole is pre-sealed by the sealing component to prevent the pressure sleeve from prematurely squeezing the fixed slip. The limit release component and elastic limit component work together to ensure that the fixed slip moves to the correct position in the wellbore before being fixed. The integral fixed slip replaces the independent keyway slip, which is convenient for processing and fixing.
This effectively prevents the tailpipe hanger from prematurely setting due to changes in well pressure during the lowering process, ensuring that the tailpipe is moved to the working position before being fixed, avoiding re-measurement and lowering, and improving the success rate of lowering.
Smart Images
Figure CN121576034B_ABST