High capacity universal connector

Patent metadata

Field	Value
Publication number	US-10527207-B2
Application number	US-201715582268-A
Country	US
Kind code	B2
Filing date	Apr 28, 2017
Priority date	Dec 9, 2016
Publication date	Jan 7, 2020
Grant date	Jan 7, 2020

Abstract

A high capacity universal connector for use in connecting tubular members and a method for sealing the tubular members is provided. First and second tubular members are provided which each have ends that are brought into face-to-face engagement by a connector. A metal sealing element seals against conical surfaces at the ends of the first and second tubular members and enables the entire surface of the end of one tubular member to be bought into engagement with the surface of the end of the other tubular member so as to improve the bending and compression capacity of the assembly comprising the tubular members and the metal sealing element. A metal sealing ring for use in this assembly is also provided, along with a gasket retention assembly.

First claim

What is claimed is:

1. An assembly, comprising:
a first tubular member having a central bore, an end, and a conical sealing surface;
a second tubular member having a central bore, an end, and a conical sealing surface; and
a connector coupling the first tubular member to the second tubular member, wherein the end of the first tubular member and the end of the second tubular member engage each other at a similar internal diameter in a face-to-face relationship and the surface of the end of the first tubular member engages the entire surface of the end of the second tubular member; and
a metal sealing ring having a central bore, a first conical sealing surface, and a second conical sealing surface,
wherein the conical sealing surface of the first tubular member and the conical sealing surface of the second tubular member each comprise multiple conical surfaces separated by steps between adjacent conical surfaces,
wherein the first tubular member comprises a straight vertical section along an internal diameter of the first tubular member, wherein the straight vertical section is located between the conical sealing surfaces of the first and second tubular members when the first and second tubular members are coupled together,
wherein the first conical sealing surface of the metal sealing ring contacts each of the multiple conical surfaces of the conical sealing surface of the first tubular member and the second conical sealing surface of the metal sealing ring contacts each of the multiple conical surfaces of the conical sealing surface of the second tubular member when the metal sealing ring is engaged in a sealing relationship with the first and second tubular members.

2. The assembly of claim 1 , wherein the end of the first tubular member and the end of the second tubular member engage each other at a similar internal diameter in a face-to-face relationship to facilitate an increase in bending/compression capacity of the assembly up to approximately 40% greater than a bending/compression capacity of a tubular assembly having a recess formed along an internal diameter of the tubular assembly to accommodate a ribbed segment of a gasket.

3. The assembly of claim 1 , wherein the straight vertical section of the first tubular member interfaces directly with the conical sealing surface of the second tubular member at the similar internal diameter.

4. The assembly of claim 1 , wherein the end of the first tubular member comprises a concave portion, the end of the second tubular member comprises a complementary convex portion, and wherein the concave portion is shaped to fit directly around the convex portion.

5. The assembly of claim 1 , wherein the straight vertical section of the first tubular member interfaces directly with one of the multiple conical surfaces of the second tubular member at the similar internal diameter.

6. The assembly of claim 1 , wherein the first conical sealing surface of the metal sealing ring includes multiple conical surfaces that each abut one of the multiple conical surfaces of the conical sealing surface of the first tubular member and the second conical sealing surface of the metal sealing ring includes multiple conical surfaces that each abut one of the multiple conical surfaces of the conical sealing surface of the second tubular member.

7. The assembly of claim 1 , wherein a radially outermost region of the metal sealing ring does not comprise a ribbed section.

8. The assembly of claim 1 , wherein the first conical sealing surface of the metal sealing ring further comprises at least one alignment segment and at least one sealing segment, and wherein the second conical sealing surface of the metal sealing ring comprises at least one alignment segment and at least one sealing segment.

9. The assembly of claim 1 , further comprising a retention device disposed within the first tubular member or the second tubular member and extending therefrom to engage a profile of the metal sealing ring for retaining the metal sealing ring against the first tubular member or the second tubular member.

10. The assembly of claim 9 , wherein the retention device is configured to be dislodged from engagement with the metal sealing ring using pressurized air or fluid delivered via a port.

11. The assembly of claim 1 , wherein the metal sealing ring is made of metal and does not include an elastomer.

12. The assembly of claim 1 , wherein the metal sealing ring is partially made of metal and includes an elastomer.

13. A method of sealing tubular components, comprising:
providing a first tubular member having a central bore, an end, and a conical sealing surface, wherein the conical sealing surface of the first tubular member comprises multiple conical surfaces separated by steps between adjacent conical surfaces;
providing a second tubular member having a central bore, an end, and a conical sealing surface, wherein the conical sealing surface of the second tubular member comprises multiple conical surfaces separated by steps between adjacent conical surfaces;
aligning the end of the first tubular member with the end of the second tubular member at a similar internal diameter in a face-to-face relationship, wherein aligning the first tubular member to the second tubular member comprises engaging a straight vertical section of the first tubular member with the conical sealing surface of the second tubular member;
engaging a metal sealing ring in a sealing relationship with the first and second tubular members, the metal sealing ring having a central bore, a first conical sealing surface, and a second conical sealing surface, wherein the first conical sealing surface of the metal sealing ring contacts each of the multiple conical surfaces of the conical sealing surface of the first tubular member and the second conical sealing surface of the metal sealing ring contacts each of the multiple conical surfaces of the conical sealing surface of the second tubular member; and
coupling the first tubular member to the second tubular member using a connector such that the surface of the end of the first tubular member engages the entire surface of the end of the second tubular member.

14. The method of claim 13 , wherein coupling the first tubular member to the second tubular member increases a bending/compression capacity of the connected tubular components up to approximately 40% greater than a bending/compression capacity of a tubular assembly having a recess formed along an internal diameter of the tubular assembly to accommodate a ribbed segment of a gasket.

15. The method of claim 13 , wherein aligning the first tubular member to the second tubular member comprises engaging a concave portion at the end of the first tubular member with a complementary shaped convex portion at the end of the second tubular member.

Assignees

• Dril Quip Inc

Inventors

• Manning Mark A
• Deberry Blake T
• Wade Morris B
• Witwer Bruce J

Classifications

• E21B33/038 Primary

  Connectors used on well heads, e.g. for connecting blow-out preventer and riser · CPC title

• F16L19/00 Primary

  Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts (F16L17/00 takes precedence; if using bolts or equivalent connecting means F16L23/00; connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics F16L47/00 {; specially adapted for pipes of brittle material F16L49/06}) · CPC title

• F16L15/008 Primary

  with sealing rings · CPC title

• F16L19/04

  using additional rigid rings, sealing directly on at least one pipe end, which is flared either before or during the making of the connection · CPC title

• F16L19/106

  the ring comprising a shoulder against which the pipe end abuts · CPC title