Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Deep-sea water separation guide pipe male connector end sealing structure

A water-resistant conduit and end sealing technology, which is applied in the direction of drill pipe, casing, drilling equipment, etc., can solve the problems of reducing the sealing effect and damage of the sealing ring, and achieves the effects of easy manufacture, avoiding damage, and simple structure

Inactive Publication Date: 2019-04-05
JIANGSU SHUGUANG OIL DRILLING EQUIP CO LTD
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inside and outside of the end face of the joint are right-angled edges. During the tightening process of this structure, the right-angled edge of the end face of the joint has a side effect of cutting the extruded rubber sealing ring, resulting in damage to the sealing ring and directly reducing the sealing effect.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Deep-sea water separation guide pipe male connector end sealing structure
  • Deep-sea water separation guide pipe male connector end sealing structure
  • Deep-sea water separation guide pipe male connector end sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] This embodiment is a male connector of a deep-sea riser with a caliber of 16 inches. The sealing structure at the end of the male connector is composed of a connector end face 1 , an outer corner 2 and an outer wall 3 . In this embodiment, the axial concave bevel angle α of the end face 1 of the joint is 12 0 . The outer corner 2 is located at the junction of the outer wall 3 and the joint end face 1, and the outer corner 2 is in a convex arc shape, and the arc radius R of the round corner is 2.75 mm.

Embodiment 2

[0020] This embodiment is a 40-inch deep sea riser male joint. The sealing structure at the end of the male joint is composed of a joint end face 1 , an outer corner 2 and an outer wall 3 . In this embodiment, the axial concave bevel angle α of the end face 1 of the joint is taken as 15 0 . The outer corner 2 is located at the junction of the outer wall 3 and the joint end face 1, and the outer corner 2 is in a convex arc shape, and the arc radius R of the rounded corner is 3.5mm.

[0021] In the present invention, the end face of the male joint of the deep-sea water-resisting conduit is designed as an axially concave oblique angle. The sealing structure of the inclined plane is simple and reasonable. Under the constraints of the female joint, the elastic deformation part of the sealing ring plays a role in enhancing the sealing performance in the structure. It is also important to adopt a circular arc-shaped design for the outer corner 2 in the end sealing structure. The ar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a deep-sea water separation guide pipe male connector end sealing structure. The structure is composed of a connector end face, an outer corner and an outer wall. The connectorend face is an axial concave bevel. The outer corner is located at the junction of the outer wall and the connector end face and is in a convex arc shape. According to the structure, the deep-sea water separation guide pipe male connector end face is designed to be the axial concave bevel, and the bevel sealing structure is simple and reasonable; when male and female connectors are paired and screwed, a sealing ring is naturally guided in elastic deformation from the bevel to inside, and under the constraint of the paired female connector, the elastic deformation part of the sealing ring plays a role in enhancing the sealing performance in the structure. The adoption of the arc-shaped design of the outer corner in the end sealing structure is very important, the arc-shaped outer corner reduces the stress concentration in the structure, and the damage to a sealing pad can be avoided through pairing and screwing.

Description

technical field [0001] The invention belongs to the technical field of offshore oil equipment. Specifically, the invention relates to a joint of a water-resisting conduit, in particular to a sealing structure at the end of a male joint of a water-resisting conduit for deep sea. Background technique [0002] The deep sea riser joint is an essential equipment for offshore oil drilling, and it is divided into a male joint and a female joint. The main body involved in the present invention is a male joint with external taper thread, which is used for connecting the upper and lower joints of the water riser. The sealing of this connection structure is undertaken by the sealing ring located at the junction of the paired male and female pipe joints. The end of the male joint of the deep-sea water riser in the prior art is a plane perpendicular to the axis. After it is paired with the female joint and tightened, it squeezes the sealing ring against the end face to achieve the purpos...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/04
CPCE21B17/04
Inventor 袁志强曹华于海
Owner JIANGSU SHUGUANG OIL DRILLING EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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