Wells – Processes – Assembling well part
Patent
1999-03-16
2000-11-14
Dang, Hoang
Wells
Processes
Assembling well part
166 774, 166 901, 166 975, E21B 33047
Patent
active
061455962
ABSTRACT:
A dual string well tree isolation apparatus includes two assemblies each having a high pressure valve and a high pressure tubing which are respectively inserted into the vertical passage of a dual string well tree, and a swedge for connection to the dual string well tree for supporting one of the assemblies. The swedge vertically offsets one assembly from the other. The apparatus further includes a hydraulic cylinder for inserting the high pressure tubings and cylinder support rods for removable attachment of the hydraulic cylinder to the dual string well tree. The hydraulic cylinder and the support rods are removed after each insertion of a high pressure tubing into a respective vertical passage to provide easy access to the high pressure valve of each assembly. The advantage is a safe, economical apparatus for simultaneous stimulation of a dual string well completion.
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