| 1. | Open - pit crawler type downhole drills
履带式露天潜孔钻车 |
| 2. | Application of fully integrated hydraulic downhole drilling rig in mining
一体化液压潜孔钻机在水泥矿山的应用 |
| 3. | Downhole drill hammers and bils
潜孔冲击器和钻头 |
| 4. | In chapter two , the prosperity of the motion , force and screwed joint of the surface dynamic rotating drilling downhole drilling string has been discussed
第二章分析探讨了地面动力旋转钻井井下钻柱的运动状态、受力及螺纹联接的特性。 |
| 5. | Changsha lnstitute of mining research cimr with rich design experiences is the earliest to be engaged in research on downhole drilling tools and rock drill bits in china and has carried on the work more than 25 years
我公司这次在这次展览会上展出了cs165 , cs100d , cs100l和潜孔钻机，并进行了高压水射流技术的介绍和推广工作。产品的技术领先得到了很多公司的认同。 |
| 6. | Chapter three discusses the vibration forms of the surface dynamic rotating drilling downhole drilling string , analyzes the damage of low frequency ancf fongif ucfi ' na / vibration to downhole drilling string , and set up a set of math models of the longitudinal and torsional vibration
第三章分析探讨了地面动力旋转钻井井下钻柱的的振动形式，并提出分析了低频纵振现象对井下钻柱的损害，以及建立了纵向、扭转振动的数学模型。 |
| 7. | In chapter one , engineering flow and current research results in domestic and international of the surface dynamic rotating drilling have been generalized . furthermore , the engineering value and significance of motion of the surface dynamic rotating drilling downhole drilling string have been illustrated
第一章除概述了地面动力旋转钻井的工艺流程及国内外研究现状外，还阐述了研究地面动力旋转钻井井下钻柱的运动状态的工程价值及意义。 |
| 8. | Chapter four investigates some typical examples of the damage of drilling string in daqing oil field recent years . and on the basis of the analysis of the prosperity and form of the damage of drilling string , the main factors of the damage of downhole drilling string and the preventive measures have been presented
第四章调查了大庆近几年钻柱损坏的典型实例，并在对钻柱损坏的特征、形式等给予了分析的基础上，提出了井下钻柱损坏的主要因素及预防的关键。 |
| 9. | On the basis of analyzing the working circumstance and prosperity of downhole drilling string of the surface dynamic rotating drilling vertical well , the force prosperity and failure forms of downhole drilling string are focused on . and further research has been done on the vibration damage of downhole drilling string as well as the construction and work prosperity of vibrating - proof hydraulic shocker absorber
本文在对地面动力旋转钻井直井井下钻柱的工作环境和特性加以分析的基础上，着重对钻柱在井下的受力特性以及损坏形式进行了分析，并对钻柱在井下的振动危害以及用于防止振动的水力加压减震器的结构、工作特性等一些规律进行了深入的探索和研究。 |
| 10. | Wdtf is the manufacturing base for geotechnical drilling tools of cge . its main products are drilling tools for geological and engineering drilling , including wireline drilling tools , pneumatic downhole hammers , downhole drilling motors , synthetic diamond and its products , tungsten carbide and its products , various drilling pipes and tools . all products are reliable in quality , stable in performance and reasonable in price
无锡钻探工具厂为中装集团勘探和工程施工用钻具的生产基地，主要生产各种地质勘探钻进用钻具和工程施工用钻具，包括以绳索取芯工具系列风动潜孔冲击器系列螺杆钻具系列为代表的钻探工具人造金刚石及其制品各种牌号的型号的硬质合金及其制品各种钎杆钎具等。 |
