发明名称 |
Tubing hanger shuttle valve |
摘要 |
A subterranean oil or gas well apparatus is provided. The apparatus includes a single-bore production tubing hanger arranged concentric with a wellhead. The tubing hanger includes a plurality of ports and channels arranged about the tubing hanger to give operators access to the production tubing annulus and provide chemical injection capability. The ports are closable by a sliding valve. The apparatus also includes annulus and production radial-bore stab assemblies between a christmas tree and an internal crossover assembly. The stab assemblies are extendable and retractable between the chirstmas tree and the crossover assembly to allow the retrieval and installation of each independently. |
申请公布号 |
AU3309101(A) |
申请公布日期 |
2001.08.07 |
申请号 |
AU20010033091 |
申请日期 |
2001.01.29 |
申请人 |
KVAERNER OILFIELD PRODUCTS, INC. |
发明人 |
DAVID C. BASKETT |
分类号 |
E21B33/035;E21B33/043;E21B33/068;E21B33/076;E21B34/02;E21B34/04 |
主分类号 |
E21B33/035 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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