Patent ID: 6755254
Filing Date: 2004-06-29
Classification: E21B

Abstract:
A horizontal spool tree assembly for supporting a production tubing string within a well, the tree assembly adapted for use with a workover string for fluid communication with the tree assembly, the tree assembly comprising:a spool body defining a spool body central bore for receiving therein a tubing hanger and a spool body production passageway extending laterally from the spool body central bore to a production valve positioned within the spool body; the tubing hanger sealed to the spool body and adapted for supporting the production tubing therefrom, the tubing hanger having a tubing hanger bore in fluid communication with the production tubing string and a tubing hanger production passageway extending laterally from the tubing hanger bore for fluid communication with the lateral production passageway in the spool body; an annulus port extending laterally through the spool body and in fluid communication with an annulus about the production tubing string; an annulus valve for controlling fluid flow through the annulus port; a workover flow path spaced from the tubing hanger bore and extending axially through the tubing hanger from the spool body central bore below the tubing hanger to the spool body central bore above the tubing hanger, thereby providing fluid communication between the workover string and the annulus surrounding the production tubing string; and a workover valve positioned along the workover flow path for controlling fluid flow between the central bore above the tubing hanger and the annulus below the tubing hanger.