Gimbal bearing system and method
US-2016376874-A1 · Dec 29, 2016 · US
Improved riser tensioner bearing system
US2016273280A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016273280-A1 |
| Application number | US-201415032238-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 31, 2014 |
| Priority date | Nov 1, 2013 |
| Publication date | Sep 22, 2016 |
| Grant date | — |
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- Title
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Abstract
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A serial bearing ( 300 ) for a riser tensioner system is provided. The serial bearing improves lateral and axial load performance when severe side-loads are transferred to the riser tensioner system.
First claim
Opening claim text (preview).
What is claimed is: 1 . A serial bearing for a riser tensioner system, said serial bearing including: a radial bearing mount; a spherical bearing mount; an intermediate mount disposed between the radial bearing mount and the spherical bearing mount; a radial bearing stack disposed between the radial bearing mount and the intermediate mount; and a spherical bearing stack disposed between the spherical bearing mount and the intermediate mount. 2 . The serial bearing of claim 1 , wherein the radial bearing stack includes a high capacity laminate (HCL). 3 . The serial bearing of claim 2 , wherein said HCL is formed using direct bonding. 4 . The serial bearing of claim 2 , wherein said HCL is formed using sequential bonding. 5 . The serial bearing of claim 1 , wherein the spherical bearing stack includes a high capacity laminate (HCL). 6 . The serial bearing of claim 5 , wherein said HCL is formed using direct bonding. 7 . The serial bearing of claim 5 , wherein said HCL is formed using sequential bonding. 8 . The serial bearing of claim 1 , wherein said spherical bearing stack has a spring rate of about 1.2×10 7 lbf/inch in compression, about 22,000 lbf/inch in shear, and about 9×10 5 lb·ft/deg for cocking. 9 . The serial bearing of claim 1 , wherein said spherical bearing stack has a radial spring rate of about 781,000 lbf/inch, a torsional spring rate of about 1900 in-lbf/deg, a cocking spring rate of about 4000 in-lbf/deg, and an axial spring rate of about 4.7×10 6 lbf/inch. 10 . The serial bearing of claim 9 , where said axial spring rate and said radial spring stack are nonlinear and are configured to increase in a stiffness as a load acting upon said spherical bearing stack increases. 11 . The serial bearing of claim 9 , wherein said spherical bearing stack has cocking spring rate less than or equal to about 4000 in-lbf/deg. 12 . The serial bearing of claim 1 , wherein at least one of the radial bearing mount and the spherical bearing mount are configured for connection to a riser. 13 . The serial bearing of claim 12 , wherein a cocking motion of said spherical bearing stack is about +/−15 degrees from a vertical direction relative to said riser. 14 . The serial bearing of claim 1 , wherein the radial bearing stack includes at least one of ring shaped elastomeric elements and ring shaped shim elements.
Assignees
Inventors
Classifications
specially adapted for underwater drilling (E21B19/09, E21B19/143 take precedence) · CPC title
supporting a riser from a drilling or production platform · CPC title
- E21B19/006Primary
including heave compensators · CPC title
- E21B17/085Primary
Riser connections (connectors for wellhead E21B33/038) · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2016273280A1 cover?
- A serial bearing ( 300 ) for a riser tensioner system is provided. The serial bearing improves lateral and axial load performance when severe side-loads are transferred to the riser tensioner system.
- Who is the assignee on this patent?
- Lord Corp
- What technology area does this patent fall under?
- Primary CPC classification E21B19/006. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Thu Sep 22 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).