发明名称 GAS LIFT NOZZLE VALVE
摘要 The present invention relates to the design of a gas lift nozzle valve (GL) that can replace the conventional orifice valves (VO). The gas lift nozzle valve (GL) according to the present invention has a body (1) with inlet orifices (2) and, slightly below, a shallow recess (3) in the inner diameter of the body, into which a convergent nozzle (4) is fitted for regulating the outflow of gas through the nozzle valve (GL) towards the outlet (5) thereof.
申请公布号 WO2011006220(A1) 申请公布日期 2011.01.20
申请号 WO2010BR00153 申请日期 2010.05.13
申请人 PETROLEO BRASILEIRO S.A. - PETROBRAS;RESENDE DE ALMEIDA, ALCINO 发明人 RESENDE DE ALMEIDA, ALCINO
分类号 E21B34/06;E21B43/12 主分类号 E21B34/06
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