发明名称 |
ONDER WATER TE GEBRUIKEN AFSLUITER. |
摘要 |
<p>In accordance with an illustrative embodiment of the present invention, a valve placed in a subsea blowout preventer stack during a production test of a well producing gas comprises a valve body containing two valve elements in series and a releasable control unit. A fluid to inhibit the formation of natural-gas hydrates can be injected into the valve body by means of a pump on the surface and through a high-pressure hose. A lateral connector fixed to the control unit is fitted in a sealed manner into a receptacle on the valve body to allow reconnection of the inhibiting fluid injection system.</p> |
申请公布号 |
NL7806176(A) |
申请公布日期 |
1979.01.02 |
申请号 |
NL19780006176 |
申请日期 |
1978.06.07 |
申请人 |
ETUDES ET FABRICATIONS FLOPETROL TE VAUX LE PENIL, FRANKRIJK. |
发明人 |
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分类号 |
E21B33/068;E21B33/076;E21B34/00;E21B34/04;(IPC1-7):21B43/01 |
主分类号 |
E21B33/068 |
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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