发明名称 MANDREL FOR A GAS LIFT VALVE
摘要 <p>The present invention relates to a mandrel for a gas lift valve which comprises an elongated body provided with means of connection at its ends. The body is provided with a side pocket ( 17 ) and a side receptacle ( 16 ) in the interior of which may be housed a gas lift valve ( 13 ) which injects gas into the interior of the body of the mandrel for the gas lift valve ( 15 ) by means of orifices ( 22 ) positioned in a nose ( 18 ). The mandrel for the gas lift valve ( 15 ) comprises additionally a lower body ( 23 ) provided on the lower part of the valve receptacle ( 16 ) of the mandrel of the side pocket ( 15 ) in that the lower body ( 23 ) is configured in a manner to seal the lower part of the valve receptacle ( 16 ) to form a chamber ( 24 ) and the lower body is provided with at least one injection orifice to inject gas into the interior of the body of the mandrel of the gas lift valve ( 15 ).</p>
申请公布号 EP1618281(B1) 申请公布日期 2008.05.21
申请号 EP20040727599 申请日期 2004.04.15
申请人 PETROLEO BRASILEIRO S.A. - PETROBRAS 发明人 DE ALMEIDA, ALCINO RESENDE
分类号 E21B43/12;E21B23/03 主分类号 E21B43/12
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