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The Working Principle Of The Bridge Plug
- May 31, 2018 -

Using a cable or string to deliver it to the wellbore in a predetermined position, through gunpowder blasting, hydraulic sitting seal or mechanical sitting seal tool produced by the pressure on the slips, pull force for the tension bar, through the upper and lower cone to the sealing rubber tube above the pressure to pull the two forces, when the tensile strength reached a certain value, tension rod rupture, sitting sealing tool and bridge plug off.

At this time, the locking device on the central tube of the bridge plays an effective role, the top and bottom slips are broken and embedded in the casing wall, the plastic barrel expands and seals, completes sits the seal.

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