发明名称 |
Reciprocating pulser for mud pulse telemetry |
摘要 |
A method of transmitting pressure pulses from a downhole location through a flowing fluid in a wellbore comprises using a linear actuator to controllably move a reciprocating member axially back and forth between a first position and a second position to at least partially obstruct flow of the flowing fluid to generate the pressure pulses. A reciprocating pulser for generating pressure pulses in a fluid flowing in a wellbore, comprises a fluid passage that allows flow of the fluid through the pulser, and a reciprocating member. A linear actuator is coupled to the reciprocating member, such that the linear actuator moves the reciprocating member in a first axial direction and then in a reverse direction to at least partially obstruct flow of the fluid through the pulser to generate pressure pulses in the flowing fluid. |
申请公布号 |
GB2440868(A) |
申请公布日期 |
2008.02.13 |
申请号 |
GB20070022481 |
申请日期 |
2006.05.24 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
DETLEF HAHN;VOLKER PETERS;CEDRIC ROUATBI;ECKARD SCHOLZ |
分类号 |
E21B47/18;H04L1/00;H04L27/00 |
主分类号 |
E21B47/18 |
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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