Patent ID: 7213607

Claim:
A mandrel for a gas lift valve ( 15 ) which comprises an elongated body, provided with means of connection at its ends, said body provided with a lateral side pocket, ( 17 ) and a side receptacle ( 16 ) the interior of which is able to house a gas lift valve ( 13 ) which injects gas into the interior of the body of the mandrel for the gas lift valve ( 15 ) by way of orifices ( 22 ) positioned in a nose ( 18 ), the mandrel for the gas lift valve ( 15 ) characterized by, additionally comprising: a lower body ( 23 ) provided in the lower part of the receptacle for the valve ( 16 ) of the side pocket mandrel ( 15 ), in that said lower body ( 23 ) is configured in a manner to seal the lower part of the valve receptacle ( 16 ) to form a chamber ( 24 ); in that the lower body ( 23 ) is provided with at least one injection orifice to inject gas upwards into the interior ( 26 ) of the body of the mandrel for gas lift valve ( 15 ).