发明名称 |
ОБРАТНЫЙ КЛАПАН ДЛЯ ПОДАЧИ ХИМИЧЕСКОГО РЕАГЕНТА, ВСТРОЕННЫЙ В ИЗВЛЕКАЕМЫЙ СКВАЖИННЫЙ КЛАПАН-ОТСЕКАТЕЛЬ |
摘要 |
Disclosed herein is a safety valve with a chemical injection configuration. The device includes a hydraulic fluid pressure operated piston at the housing. The device further includes a flow tube in operable communication with the piston and a chemical injection configuration disposed within the housing. Further disclosed herein is a method of maintaining the operation of a safety valve by injecting chemical fluid through a configuration within the safety valve. Still further disclosed herein is check valve. The check valve includes a seal, a dart having a closed head and sealable against the seal, one or more flutes on the dart, and a spring applying a biasing force to the dart to a sealing position, that force being overcomeable by a fluid pressure acting in a direction opposing the spring force. |
申请公布号 |
RU2006118152(A) |
申请公布日期 |
2007.12.20 |
申请号 |
RU20060118152 |
申请日期 |
2004.10.27 |
申请人 |
БЕЙКЕР ХЬЮЗ ИНКОРПОРЕЙТЕД (US) |
发明人 |
СТРАТТАН Скотт С. (US);АДАМС Джеффри К. (US);МЬЕРЛИ Томас С. (US);АЙВС Джейсон Б. (US);УИЛЛЬЯМС Джеффри С. (US) |
分类号 |
E21B34/06;E21B34/10 |
主分类号 |
E21B34/06 |
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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