Layering pressure measuring device of chemical flooding differential pressure well

The utility model relates to the technical field of tertiary oil recovery in an oil field and belongs to a layering pressure measuring device of a chemical flooding differential pressure well. The layering pressure measuring device is designed for solving problem that in the prior art, pressure after a chemical flooding solution passes through a throttling element can not be measured. The layering pressure measuring device is composed of a fishing rod, a pressing cover, an anti-rotating ring, a compression spring, a supporting base, a torsion spring, a cam shaft, a cam, O seal rings, a pressure measuring element, the throttling element and a centering body. The layering pressure measuring device is mainly applied to the chemical flooding differential pressure well and has the advantages that the structure is novel and simple, layering pressure measuring on a polymer flooding or ternary combination flooding differential pressure well can be achieved, and the layering pressure measuring device can be used in a multi-stage mode.