顺层孔封孔新工艺在国投新集二矿的应用

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1、顺层孔封孔新工艺在国投新集二矿的应用【摘　要】顺层孔抽采是当前降低煤层瓦斯含量及瓦斯压力的有效措施之一，抽采效果在很大程度上取决于封孔方法和封孔质量。文中介绍了顺层孔聚氨酯充填全程下花管封孔工艺及现场应用情况。实践证明：该封孔工艺封孔性能好，抽采效果明显提高，可广泛应用于煤矿顺层孔的施工中。【关键词】顺层孔；封孔；聚氨酯充填【abstract】ｈolefrilledalongseamdrainageisoneoftheeffectivemeasurestoreducethecoalseamgascontentandgaspressureandtheeffectofextractio

2、ndependslargelyonthesealingmethodandsealingquality.thispaperintroducesthebeddingkongpolyurethanefillingtheentireflowertubesealingprocessandfieldapplication.practicehasprovedthatthesealingprocessofsealingperformance,theeffectofextractionsignificantlyimproved,andcanbewidelyusedintheconstructiono

3、ftholefrilledalongseam.【keywords】ｈolefrilledalongseam；ｓealing；ｐolyurethane顺层孔封孔新工艺在国投新集二矿的应用【摘　要】顺层孔抽采是当前降低煤层瓦斯含量及瓦斯压力的有效措施之一，抽采效果在很大程度上取决于封孔方法和封孔质量。文中介绍了顺层孔聚氨酯充填全程下花管封孔工艺及现场应用情况。实践证明：该封孔工艺封孔性能好，抽采效果明显提高，可广泛应用于煤矿顺层孔的施工中。【关键词】顺层孔；封孔；聚氨酯充填【abstract】ｈolefrilledalongseamdrainageisoneoftheeffective

4、measurestoreducethecoalseamgascontentandgaspressureandtheeffectofextractiondependslargelyonthesealingmethodandsealingquality.thispaperintroducesthebeddingkongpolyurethanefillingtheentireflowertubesealingprocessandfieldapplication.practicehasprovedthatthesealingprocessofsealingperformance,theef

5、fectofextractionsignificantlyimproved,andcanbewidelyusedintheconstructionoftholefrilledalongseam.【keywords】ｈolefrilledalongseam；ｓealing；ｐolyurethane顺层孔封孔新工艺在国投新集二矿的应用【摘　要】顺层孔抽采是当前降低煤层瓦斯含量及瓦斯压力的有效措施之一，抽采效果在很大程度上取决于封孔方法和封孔质量。文中介绍了顺层孔聚氨酯充填全程下花管封孔工艺及现场应用情况。实践证明：该封孔工艺封孔性能好，抽采效果明显提高，可广泛应用于煤矿顺层孔的施工中。

6、【关键词】顺层孔；封孔；聚氨酯充填【abstract】ｈolefrilledalongseamdrainageisoneoftheeffectivemeasurestoreducethecoalseamgascontentandgaspressureandtheeffectofextractiondependslargelyonthesealingmethodandsealingquality.thispaperintroducesthebeddingkongpolyurethanefillingtheentireflowertubesealingprocessandfieldap

7、plication.practicehasprovedthatthesealingprocessofsealingperformance,theeffectofextractionsignificantlyimproved,andcanbewidelyusedintheconstructionoftholefrilledalongseam.【keywords】ｈolefrilledalongseam；ｓealing；ｐolyurethane顺层孔封孔新工艺在国投新集二