open hole

基本解释

For the extended well, high angle drilling, horizontal drilling and deep well drilling, or in the well section of large dogleg severity, or the long open hole, casing wear often happens.
在大位移井、大斜度井、水平井和深井鑽井中，或者在狗腿嚴重度較大的井段，或者在技術套琯下入後的長裸眼鑽井過程中，常常出現套琯磨損問題。
Practical application result indicates that the said interpretation platform is suitable for open hole single well interpretation and can meet the needs of field production and scientific research.
通過實際應用証明該解釋平台是一個實用的裸眼井單井解釋平台，可以滿足現場生産和科研的需要；
Ideal open hole completion and casing perforation completion are derived from the update of the skin factor.
對於套琯射孔完井則需要考慮射開程度的不完善和孔眼周圍被壓實引起的井底附加壓降。

The fifty-nine year old Watson needed to make a short attempt on his final hole to win the British Open.
Either you open a nice hole between yourself and the rest of your army, in which case somebody's going to get very badly killed and you're going to be on the run very soon, or you have to somehow communicate to the rest of the army, "Everybody come over this way," which will still leave that flank open to being flanked by the other side.
或者在你和自己的軍隊之間,形成一個缺口,這樣有會造成慘重的傷亡,你很快會全軍潰逃,或者你以某種方式和部隊溝通,全都過來這邊,這樣仍會使一側對敵人敞開,從而受到對方攻擊
耶魯公開課 - 古希臘歷史簡介課程節選
The Marines attacked. They broke open a small hole in the door of the brick building.

In July the club will open an 18-hole golf course, designed by former British Open champion Tom Weiskopf.
FORBES: Private Powder

裸眼
Up to June,2010,Zhongyuan Oil Field has drilled 66 horizontal wells,3 types of completion means have been used in these wells,out of which,liner completion accounts for 75%,,casing completion 17.9% and open hole completion 7.1%.
截止到2010年6月,中原油田已完鑽水平井66口,採用了篩琯、套琯和裸眼三種完井方式,分別佔75%、17.9%和7.1%。
無套琯鑽孔