formation damage
地层损伤：指在钻井、完井、试井、生产等过程中
常用释义
英式发音
美式发音
基本释义
- 地层损伤：指在钻井、完井、试井、生产等过程中，由于各种原因导致地层孔隙结构、渗流能力等发生不可逆的改变，从而降低油气井产能的现象。
例句
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1·The mega perforator can be used in an open hole to reduce formation damage.大射孔器可在裸眼井中使用，以减小地层损害。
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2·If skin factor of formation damage is more, its radius of investigation is less.井底附近地层渗透率降低比改善对调查半径的影响要大。
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3·Formation damage occurs when injected water is not compatible with the reservoir.油田注入水与储层不配伍时会导致储层伤害。
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4·The influence of temperature, pressure and shear rate on formation damage are also discussed.讨论了温度、压力、速度梯度对保护储效果的影响。
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5·Asphalt deposition is one of the important causes for formation damage and production reduction.原油开采过程中的沥青沉积是引起地层伤害、产液量下降的一个重要原因。
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6·The plug was to be removed later by drilling and acidizing to resume production without formation damage.插件是拆除后，由钻井和酸化恢复生产无地层损害。
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7·Method Based on experimental study result, mechanism of formation damage from temperature oscillation is analyzed.方法根据实验研究成果，分析温度震荡引起的储层损害的机理。
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8·The formation damage during drilling are recognized as 2 types: mud solid particles plug and mud filtrate invasion.钻井过程中的油层污染可分为泥浆固相颗粒侵入和滤液侵入2种类型。
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9·The selection of rheological test condition, friction property, proppant carrying capacity and formation damage etc.重点讨论了压裂液流变试验条件的选择、降阻性能、携砂能力和保护储层技术。
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10·Underbalanced drilling technology can increase ROP and decrease formation damage, so it is increasingly used worldwide.欠平衡钻井技术可以降低地层损害、提高机械钻速，所以在世界范围内被逐渐采用。