发明名称 |
SYSTEM, METHOD AND APPARATUS FOR PROTECTING DOWNHOLE COMPONENTS FROM SHOCK AND VIBRATION |
摘要 |
A downhole tool assembly has a component that is sensitive to shock and vibration. A reciprocating element is coupled to the component. The reciprocating element has an axial internal passage and an outer surface. A housing has an internal axial bore for receiving the reciprocating element for axial reciprocal motion therein. A retainer is mounted to the housing and seals the housing between the component and the reciprocating element. A first spring is located between the housing and the reciprocating element. A second spring is located between the reciprocating element and the retainer. A first reciprocating seal is located between the reciprocating element and the housing. A second reciprocating seal is located between the connector and the retainer. A fluid is contained by the reciprocating seals inside the housing. The reciprocating element permits a limited amount of fluid to flow between sides thereof.
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申请公布号 |
US2012247832(A1) |
申请公布日期 |
2012.10.04 |
申请号 |
US201113076510 |
申请日期 |
2011.03.31 |
申请人 |
CRAMER DAVID S.;DEVLIN DAVID D.;PHOENIX TECHNOLOGY SERVICES LP |
发明人 |
CRAMER DAVID S.;DEVLIN DAVID D. |
分类号 |
E21B41/00;E21B47/00;F16F7/00;F16F13/00 |
主分类号 |
E21B41/00 |
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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