There are 3 lateral sealing patterns of faults in Chegu 20 buried hill in Shengli oilfield, including lithology juxtaposition, shale smearing and high displacement pressure in faulted zone.
胜利油区车古20潜山断层侧向封闭有3种模式：即岩性对接封闭、泥岩涂抹封闭和断裂带高排替压力封闭模式。
The sealing character of abnormally high pressure zone and origin and migration of oil and gas are closely related.
异常高压带的封闭特性对油气的生成与运移有密切关系。
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.
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。
A fourth new application was the temporary sealing of a 305-m perforated oil-producing zone to stop severe lost circulation during a workover to drill deeper and to set a liner across a new zone.
第四个新的申请被暂时封闭305米射孔产油区，以阻止严重堵漏中修井钻得更深定班轮跨越一个新的区。
A fourth new application was the temporary sealing of a 305-m perforated oil-producing zone to stop severe lost circulation during a workover to drill deeper and to set a liner across a new zone.
第四个新的申请被暂时封闭305米射孔产油区，以阻止严重堵漏中修井钻得更深定班轮跨越一个新的区。
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