This paper introduces the control of the borehole path of each section of H40 shaft in Northern Shaanxi Area and the field application of the drilling fluid of potassium-base polymer, and probes into the slope increasing and decreasing regulations of the drill set, and puts forward some technical measures for guaranteeing the shaft safety.
介绍了陕北地区H40井各井段井眼轨迹控制情况及钾基聚合物钻井液的现场使用,探讨了钻具组合的增降斜规律和保证井内安全的技术措施。
Numerical Simulation Study on Borehole Acoustic Field with Low Density Cementing
低密度水泥固井时井内声场的数值模拟
Discussion of Problems Caused by Volumetric Well Killing Method
关于容积法排出井内气体压井问题的探讨
If a hole is drilled, the pressure can be reduced in the hole and thereby in the rock section adjacent to the hole.
如果一个井孔钻成，井内压力就要下降，井孔附近岩体内的压力也跟着下降。
Effects of Drillstring Length on Snake Buckling Loads
斜直井内钻柱长度对蛇形屈曲的影响
(5) having a good communications system for dispatch on the surface, underground, within and out of the coal mine;
（五）井上、井下、矿内、矿外调度通讯畅通；
The status-quo of slim hole drilling technology in China and the world
国内外小井眼井钻采技术的发展现状
Waterproof and Shutoff for Closing of Pressured Dewatering Well Located in Foundation Pit
基坑内承压降水井封井的防水与封堵
rathole gravel slurry
井底口袋内的砾石砂浆
In memory of the ill-fated young lady, people later named the well, located in a small courtyard in the eastern sector of the palace, Lady Pearl's Well.
这口井在故宫外东路的小院内，后人怀念珍妃，将这口井称为“珍妃井”。
Shaft Slippery Mold Construction of Frosen Liner at Big Section with Deep Thick Surface Soil
大断面深厚表土层冻结立井井筒内层井壁滑模施工
For inside the farm, everything was well organized, and the air of environmental protection radiated.
因为农庄内一切井井有条，充满环保气息。
Slippery Mold Construct of Internal Shaft Lining in Freezing Shaft on Large Sectio Thick Surface Soil
大断面深厚表土层冻结井筒内层井壁滑模施工
A well test model for wells drilled in big-size cavity of naturally fractured vuggy carbonate reservoirs
井打在大尺度溶洞内的缝洞型油藏试井模型
Application of casing drilling technology in ZM-351 well in Venezuela
套管钻井技术在委内瑞拉ZM-351井的应用
Hole sloughing prevention and antileakage drilling technology in deep buried hill inside well drilling in Jizhong depression of Huabei Oilfield
冀中坳陷深潜山内幕井防漏、防塌钻井技术
They drilled two wells within one week.
他们在一星期内挖了两口井。
The mouse's job was to fetch the water from the well and carry it in.
老鼠的工作是到井边打水并抬进屋内。
ANALYSING DYNAMIC CHARACTERISTICS OF DRILLING STRING EDDY OF INSIDE CONTAINING DRILL FLUID
内含钻井液的钻柱涡动动力特性分析