Lateral well tie-back method and apparatus

Details Lateral well tie-back method and apparatus Lateral well tie-back method and apparatus

E - Fixed Constructions

21

B

E21B 33/10 (2006.01) E21B 7/06 (2006.01) E21B 17/18 (2006.01) E21B 23/12 (2006.01) E21B 29/06 (2006.01) E21B 41/00 (2006.01) E21B 43/14 (2006.01)

Patent

CA 2295466

A tie-back insert is installed in a primary wellbore and includes a housing which includes one or more axial bores therethrough and a lateral bore which extends laterally out the side of the housing. The lateral bore allows a liner to pass through the top of the insert, through the lateral bore and into the lateral borehole to a new producing formation. The annulus formed between the housing and the casing is sealed at the upper end of the housing by an upper packer and the lower end of the housing is sealed by stabbing into a lower packer. The upper and lower packers seal around the window cut in the casing. The axial bores allow production fluid from the primary wellbore to be transmitted through the insert to the surface of the well. The insert is placed within the primary wellbore so that the lateral bore is located and oriented adjacent the lateral borehole allowing production fluid from the lateral borehole to transmitted to the surface of the well.

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