| 发明名称 |
INNER DRILLING RISER TIE-BACK CONNECTOR FOR SUBSEA WELLHEADS |
| 摘要 |
A method and system for coupling a riser to a subsea wellhead are disclosed. A first terminal end of a riser comprised of an inner riser and an outer riser is coupled to the platform and a second terminal end of the riser is coupled to a wellhead. The second terminal end of the inner riser is coupled to an inner drilling riser tie-back connector (“ITBC”) having a main body. The ITBC is landed on a landing shoulder disposed within the subsea wellhead. A downward weight is applied to the main body. The application of the downward weight to the main body couples the ITBC and the subsea wellhead. |
| 申请公布号 |
US2015176358(A1) |
申请公布日期 |
2015.06.25 |
| 申请号 |
US201314137124 |
申请日期 |
2013.12.20 |
| 申请人 |
Dril-Quip, Inc. |
发明人 |
Williams Gregory Dale |
| 分类号 |
E21B33/038;E21B17/02;E21B17/01 |
主分类号 |
E21B33/038 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A system for coupling a platform to a subsea wellhead comprising:
a riser extending between the platform and the subsea wellhead, wherein the riser comprises an inner riser and an outer riser; an inner drilling riser tie-back connector (“ITBC”) having a main body, wherein the ITBC is coupled to the inner riser; a seal assembly disposed at an interface of the subsea wellhead and the main body; and a ratch latch threaded ring disposed within the ITBC, wherein the ratch latch threaded ring is movable downhole along the subsea wellhead. |
| 地址 |
Houston TX US |
