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- Air driven hollow DTH hammer is applied,along with a set of dual wall drilling pipe and a specially designed reverse circulation bit,to conduct continuous coring reverse circulation drilling. 气动贯通式潜孔锤与双壁钻杆及专门研制的反循环钻头 (获国家发明专利 )配套使用 ,可实现反循环连续取心 (样 )钻进新工艺 ,连续获取的岩样采取率高 ,品质好 ,代表性强。
- pump reverse circulation drilling technique 泵吸反循环钻进工艺
- air-lift reverse circulation drilling 气举反循环钻进
- normal & reverse circulation drilling 正反循环钻进
- percussion reverse circulation drill 冲击反循环钻机
- Research on Bottom Hole Flushing in Reverse Circulation Drilling 反循环钻进井底净化的研究
- gas upgrading of reverse circulation drilling technology 气举反循环
- Reverse Circulation Drilling Avoids Damage to Low-pressure Gas Reservoir 反循环钻井避免损害低压气层
- Application of Air-lift Reverse Circulation Drilling Technology for Resolving Well Drilling Problems 应用气举反循环钻进工艺成功解决钻井施工疑难技术问题
- Development of QFGZ Type Bit for Simultaneous Casing While Reverse Circulation Drilling with DTH Air Hammer QFGZ型潜孔锤反循环跟管钻头的研制
- APPLICATION OF THE PERCUSSIVE REVERSE CIRCULATION DRILLING IN DRILLING A LARGE DIAMETER PILING EMBEDDED ROCK 冲击反循环技术装备在大口径嵌岩钻进中的应用
- Construction technology of rotary cast-in-place bored piles with direct or reverse circulation drilling 正反循环回转钻孔灌注桩施工技术
- EXPERIMENTAL RESEARCHES OF DTH REVERSE CIRCULATION DRILLING TECHNIQUE IN COMPLEX STRATA 潜孔锤反循环钻进技术在复杂地层中的试验研究
- Test and Research on Flow Parameters in the Air Reverse Circulation Drilling Pipe Lines 空气反循环钻探管路中介质及固相参数的测试与研究
- Fuzzy Control of Automatic Drilling of Drum-type Percussive Reverse Circulation Drilling Machines 卷筒式冲击反循环钻机自动钻进的模糊控制
- Testing of the Air Reverse Circulation Drilling Process in Geo-physical Blast hole Drilling 空气反循环钻进工艺在物探爆破孔施工中的试验应用研究
- Applications of Clear Water-gas-lift Reverse Circulation Drilling Technology to Deep-well Construction 清水气举反循环钻探工艺在深水井施工中的应用
- Keywords drilling;percussive reverse circulation drilling;wire-line;carved hook jamming;drill bit; 钻探;冲击及循环钻进;绳索;搂钩;卡钻;钻头;
- Pump-suction Reverse Circulation Drilling Technology for Bored Piles Against the Lost Circulation in Zhuhai Qi'ao Bridge 珠海淇澳大桥漏水桩孔泵吸反循环顶漏钻进工艺
- Large Diameter Grouting Pile Construction by Percussive Reverse Circulation Drill without Mud Pit in Hongkong 冲击反循环钻机在香港无泥浆池施工桩基工程
