Patent ID: 7699099

Claim:
A Christmas tree for use between a production tubing elevation and a flow line elevation, the elevations defining a first axial dimension therebetween, the tree comprising: an intermediate portion of the Christmas tree positioned between the production tubing elevation and the flow line elevation and defining an axial bore for communicating the production tubing elevation with the flow line elevation, the intermediate portion having a first shut-off valve for closing fluid communication of the axial bore and having a second shut-off valve for closing fluid communication of the axial bore, the intermediate portion defining a feed line extending from outside the intermediate portion to the axial bore at a point between the first and second shut-off valves; and a hanger within the Christmas tree positioned in the axial bore of the intermediate portion between the first and second shut-off valves, the hanger defining a bore and a port, the bore communicating portion of the axial bore at an upper end of the hanger with portion of the axial bore at a lower end of the hanger, the port communicating a side of the hanger with the lower end of the hanger, the port at the side of the hanger communicating with the feed line of the intermediate portion, a coil tubing attaching to the port at the lower end of the hanger, wherein the intermediate portion has a second axial dimension configured to substantially maintain the first axial dimension between the production tubing elevation and the flow line elevation.