超平衡鉆井 的英文怎麼說
中文拼音 [chāopínghéngzhēnjǐng]
超平衡鉆井
英文
overbalanced drilling- 超 : Ⅰ動詞1 (越過; 高出) exceed; surpass; overtake 2 (在某個范圍以外; 不受限制) transcend; go beyo...
- 平 : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
- 衡 : Ⅰ名詞1 (秤桿) the graduated arm of a steelyard2 (稱重量的器具) weighing apparatus3 (姓氏) a...
- 鉆 : 鉆Ⅰ名詞1. (打眼用的工具) drill; auger 2. (指鉆石) diamond; jewel Ⅱ動詞(用尖物在另一物體上轉動) drill; bore
- 井 : Ⅰ名詞1 (從地面往下鑿成的能取水的深洞) well 2 (形狀像井的東西) sth in the shape of a well 3 (...
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This paper describes the con - cept of udb, together with its advantages and disad - vantages, and demonstrates the formation damagemechanism during ubd, e. g., the lack of filter cakeprotection, temporary over - balanced condition, pol - ishing effect and surface damage caused by frictionbetween bit and hole wall and poor cooling, and otherdamages, etc
介紹了欠平衡鉆井的概念以及優點和缺點,闡述了欠平衡鉆井對地層的損害機理為由於缺少起保護作用的濾餅,臨時的超平衡造成對地層的損害;天然滲析效應;拋光、表面損害以及其它損害。
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