RTTS封隔器因水力锚自身特有的防窜功能，在浅井测试及负压测试中具有广泛的应用。
Being particularly against leakage function of RTTS packer with hydraulic anchor is applied in shallow or under balance pressure extensively.
预防锚孔弯曲的措施； 破碎带、裂缝带的钻进技术及封孔固壁堵漏技术。
The paper also presents measures for preventing drilling hole curve, drilling technique in broken zone and fissure zone and technique of sealing hole and pluging loophole.
许多卡钻事故是由于封隔器及其他锚瓦类井下工具的使用造成的，Y 211型封隔器的卡钻问题最为突出，且多发生在定向井中。
The sticking of the downhole string happened occasionally because great quantity of packers and other tools with slips are used. The sticking of Y211 packer is frequent in directional well.
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