Normally Open Valve
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Brief introduction
Normally open valve mostly work with RTTS Packer, Y211 Packer or other mechanical packers.
After setting packer, install Christmas tree for displacing fluid. Drop ball to increase pressure for closing circulating port after displacing fluid, begin acidification & fracturing, completion operations etc. -
Technical specification
OD (mm) ID(mm) Length(mm) Close differential pressure (MPa) Drop differential pressure (MPa) Ф101.6 Ф60.3 350 5.8 5~20 -
Structure diagraph
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