Block Mechanism of Microclearance Block Liquid and Lifting Height Calculating

摘要

Mechanical seal mechanism was applied to study block mechanism of gaswell microclearance block liquid for the first time,which explained block mechanism of microclearance block liquid.The paper has built a block physical model of microclearance block liquid and has got calculation formulas of the block liquid lifting height.Then the block liquid lifting heights were calculated and analyzed in different microclearance widths and pressures.The sealing effect of the block liquid was discussed.The analyzed results showed that sealing effect of the block liquid was very obvious when microclearance width was lesser than 12μm.The paper not only enriched the study on block mechanism of gaswell microclearance block liquid but also proposed theoretical guidance to solve radically gas migration problem of micro-annulus.