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涩北气田割缝筛管压裂充填防砂工艺

Natural Gas Industry(2012)

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Abstract
柴达木盆地涩北气田地层胶结疏松、成岩性差、欠压实、易出砂,严重影响到气井的正常生产,多次试验结果表明单一的防砂工艺技术已不适用于该气田.为此,重点研究了割缝筛管压裂充填防砂工艺在该区的适用性,通过对割缝筛管压裂充填防砂工艺参数、支撑剂、工作液的优选以及施工方法和工艺管柱的改进,使其防砂有效率得到极大提升,工艺有效率在涩北一号、涩北二号和台南气田分别达到70%、100%、100%.生产实践结果表明,涩北气田随着单井产水量的上升,气井出水、出砂日趋严重,建议开展防砂堵水一体化、防砂携液一体化工艺的研究.
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Experiment,Qaidam basin,Sand-control,Sebei gas field,Slotted screen liner fracturing packing,Technology,Unconsolidated sandstone
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