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Methods for removing a buffer and a buffer to remove the barrier degradable, and apparatus for use in an underground well and to remove a plug degradable.
Methods for removing a buffer and a buffer to remove the barrier degradable, and apparatus for use in an underground well and to remove a plug degradable.
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机译:去除缓冲剂的方法和去除可降解屏障的缓冲剂,以及用于地下井并去除可降解塞子的设备。
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摘要
Methods and apparatus are presented for removing a degradable barrier plug positioned in a downhole axial passageway. The degradable plug is initially isolated from fluid by at least one solid, non-degradable cover. A first electronic rupture disc assembly is actuated to open a passageway to the degradable plug. A second electronic rupture disc assembly is actuated to allow a fluid, such as water from a supply chamber, to flow into contact with the plug. The plug is substantially degraded, although the cover remains. A third electronic rupture disc assembly is actuated to bend and then cover the remaining solid cover, thereby opening the axial passageway and protecting later-introduced tools.
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