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Subterranean formation operations using degradable wellbore isolation devices

机译:使用可降解井筒隔离装置进行地下地层作业

摘要

Methods including introducing a frac plug into a wellbore in a subterranean formation, the frac plug comprising at least a mandrel, slips, and a packer element, wherein at least a portion of the mandrel and/or the slips is composed of a degradable alloy selected from the group consisting of a magnesium alloy, an aluminum alloy, and any combination thereof. The wellbore may be a cased wellbore or an open-hole wellbore, and wherein the slips are frictionally engaged with the casing string or the wellbore wall and the packer element is compressed against the casing or the wellbore wall to set the frac plug. One or more perforations is created within the formation and the formation is hydraulically fractured. The frac plug is at least partially degraded upon contact with an electrolyte in the wellbore before or after beginning production of a hydrocarbon.
机译:方法包括将压裂塞引入地下地层的井眼中,压裂塞至少包括心轴,泥浆和封隔器元件,其中,心轴和/或泥浆的至少一部分由所选的可降解合金组成选自镁合金,铝合金及其任何组合。所述井眼可以是套管井眼或裸眼井眼,并且其中所述泥浆与套管柱或井眼壁摩擦接合,并且封隔器元件被压靠在套管或井眼壁上以压裂压裂塞。在地层内形成一个或多个射孔,并且该地层被水力压裂。在开始生产烃之前或之后,压裂塞在与井眼中的电解质接触时至少部分降解。

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