borehole casing

Analysis of mechanical property of screw drilling and perforated casing in openhole completion;

裸眼完井中螺旋钻孔-射孔套管力学性能分析

Elementary Introduction to Construction and Quality Control of Cast-in-place Engaged Pile

全套管钻孔咬合桩的施工及质量控制

Discussion on Application of Casing Bored Bitted Pile in Pit Enclosing Protection

试论套管钻孔咬合桩在基坑围护中的应用

FEM for a type drilling-perforating casing with screw holding in open hole completion

裸眼完井螺旋钻孔-射孔套管的有限元分析

The Design and Its Experimental Researcch of a Drill Bit for Down-hole Casing Drilling

石油井下套管开孔钻头设计及试验研究

THIMBLE MULTICAST INSTRUMENT IN DRILL HOLE AND ITS APPLICATION TO TUNNELLING ENGINEERING

套管式钻孔多点引伸计及其在隧道工程中的应用

surface hole drilling

钻下表层套管的井眼

Make Use Guide Drill Case Drill a Hole Lead to of Deviate Heart of a Drill

使用导向钻套钻孔引出的中心偏移问题

combined pipe tap and drill

管用钻孔攻丝复合刀具

Supporting the use of impact drilling electric drill. Drilling, hole spacing with hole depth should meet the design requirements.

（1）钻孔使用配套冲击电钻.钻孔时,孔洞间距与孔洞深度应满足设计要求.

7.12 Trip up at once, pull the bit into the casing.

立即起钻，将钻头提到套管内。

wash-and-drive method

边冲出钻屑边打入套管钻进法

cased and perforated productivity

下套管射孔井的产能

5.10 Drill cement with seawater and then displace the new mud into the hole as drilling out of the casing shoe.

用海水钻水泥塞，钻到套管鞋时替入泥浆。

THE PREFECT AND APPLICATION OF THE OTHER NECESSARY TECHNIQUES TO THE SLIM HOLE LATERAL DRILLING

套管开窗侧钻井配套工艺技术研究与应用

Pull out (or run in ) the string up to the shoe and hang it on the 5 inches pipe ram] .

起钻（或下钻）至套管鞋处，并把钻具悬挂在5”闸板防喷器上。

blank-casing bit

套管底部装用的环状钻头坯

Research and Application of Casing Drilling Technology in Shengli Oil Field;

套管钻井技术在胜利油田的应用研究

Application of side tracking casing cutting window technique in Wangyun 2B Well;

套管开窗侧钻技术在王云2B井的应用