drilling

The paper briefly discusses the difference between the marine oil-gas drilling and the deep sea science drilling in sea floor sample drilling.

概述了海底钻探取样在海洋油气钻井和深海科学钻探中的不同特点 ,指出海底钻探取样是一个前沿性的复杂课题 ;分析了海底取样器的分类及岩石可钻性分级 ;针对海底柱状取样器的科研和设计方向提出了建议。

Elementary Analysis on One of the Possible Drilling and Sampling Techniques for China Lunar Exploration Project

我国探月工程可采用的一种月球钻探取样方法的初步分析

Diamond drilling replaced percussion drilling.

金钻探取代了冲击钻探。

boring method (of pulp sampling)

（纸浆取样）钻孔法

Application of Full-hydraulic Truck Driller with Automobile Chassis in Drought

全液压车载钻机在缺水地区化探取样中的应用研究

Diamond core drilling equipment--Wire line system

GB/T16951-1997金刚石绳索取心钻探钻具设备

Improvement and Development of Core Drilling Method in Scientific Drilling

科学钻探取心钻进方法的改进和发展

so every so often a sample is obtained with a coring bit.

因此时常要用取芯钻头取样。

Drilling Fluid Technology Research on Mirabilite Mine Core Drilling in Guyuan of Ningxia;

宁夏固原芒硝矿取芯钻探钻井液技术研究

Selection of Core Drilling Method for WFSD-2 of Wenchuan Earthquake Scientific Drilling Project

汶川地震科学钻探二号孔取心钻进方法的选择

Application of Dry Drilling and Sampling in Landslip Prospecting

干钻成孔及取样在滑坡勘察中的应用

They drilled out samples of Martian earth

他们钻取了火星土壤的样品。

an annular drilling bit to allow core samples to be taken.

用来获取采样的一种环形钻头。

Beta Distribution and Quality Contrel of Drill-Core Recovery

贝塔分布与钻探取心率的质量控制(一)

Research on Natural Gas-hydrate Pressure and Temperature Coring Technology

天然气水合物钻探取心保真技术研究

Current State of the Art of Coring and Processing in Marine Gas Hydrate Drilling

海洋水合物钻探取心与处理现状分析

The same principle was used in a method of drilling in oilfields.

油田的钻探方法采用了同样的原理。

offshore drilling

海底钻探;海上钻井;海上钻探;海洋钻井;海洋钻探;近海钻探;滨外钻探

A Technical Investigation on Drilling in Australia and the Technical Service of Wire-line Coring Percussive-rotary Drilling

澳大利亚钻探技术考察与绳索取心冲击回转钻进技术服务