Coiled tubing four-gate blowout preventer
A technology of blowout preventer and four rams, applied in wellbore/well components, earthwork drilling, sealing/isolation, etc., can solve problems such as poor sealing, failure of semi-sealing device, failure, etc., to avoid man-made damage , prolong the service life, reduce the effect of hard friction
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 2
[0032] Embodiment 2, the difference from Embodiment 1 is: the section of the side of the setting expansion side (5.1) of the present invention in contact with the coiled tubing is an arc-shaped structure, and the section of the other side is a protrusion that is conducive to rebound Arc structure.
[0033] The method of use is the same as that of Example 1, the difference is: as the hydraulic pressure rises, the setting expansion side (5.1) expands in one direction under the action of pressure to form a cup seal structure, so that it is tight and continuous The outer wall of the tubing forms a seal; while the cross-section of the side in contact with the coiled tubing is an arc-shaped structure, the opposite direction forms a raised bowl-bottom shape.
Embodiment 3
[0034] Embodiment 3, the difference from Embodiments 1 and 2 is that the setting expansion side (5.1) of the present invention is a three-stage structure, and the section of the side in contact with the coiled tubing is an arc structure, a planar structure and an arc shape The structure consists of three sections, and the middle section is a planar structure.
[0035] In this way, the plane structure in the middle is better combined with the outer wall of the coiled tubing, forming a larger sealing surface and a longer-lasting sealing effect.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com