drilling tool

Problems existing in rock coal core fetch and appraisal in drilling and some suggestions;

钻探岩煤芯采取及鉴定中存在的问题及解决的几点建议

Some knowing about geotechnical engineering exploration drilling and logging;

对岩土工程勘察钻探及编录的认识

Low Temperature Mud Basis Liquid of Gas Hydrate Drilling in Plateau Permafrost;

高原冻土天然气水合物钻探低温泥浆基础液研究

The paper discusses the necessity of studying appropriate economic scale of drill workload for geological survey projects, from the aspects of reasonable allocation of resources, effective arrangement of economic activities, and the characteristics of geological survey.

文章从合理配置资源、有效安排经济活动、国土资源大调查地质调查工作的特点等方面 ,论述了地质调查项目钻探经济规模工作量研究的必要性。

The artificial neural network (ANN) method is used to solve the puzzle that occur in the drilling: the identification of the lithology of the strata drilled.

对用人工神经网络方法来解决钻探生产的实际问题 ,在不取心的情况下识别所钻地层的岩性进行了研究 。

Slice micro-computer intelligent drilling parameter monitor is a king of intellingent multiparameter in- spection explosion -proof instrument used in coal mine boreholes with 80C 31 slice micro-computer as the mainbody.

单片机矿井用智能钻探参数测试仪是一种以８０Ｃ３１单片机为主体研制的煤矿井下智能化多参数检测防爆仪器。

Research,development and application of the series core drilling bit for uranium exploration;

铀矿勘查岩心钻探系列钻头的研制、开发与应用

The deep core drilling is a new challenge with which the exploration engineering will be faced.

深孔钻进是当前地勘行业岩心钻探工程中所面临的一个新的课题,本文从对金刚石钻头与扩孔器、钻进参数、护壁材料、深孔钻进操作等几方面对胶东招平断裂带岩心钻探深孔钻进施工进行了系统总结和归纳,对类似工程的施工提供了可靠的借鉴。

The article is aimed at the presently productive situation of core drilling and the future developing requests,to discuss the necessary and significance of the formulation of comprehensive technical countermeasure for increase productivity in the departments of geology and mineral resourses.

本文针对当前地矿部门岩心钻探生产形势和未来发展要求，简述了制定提高地矿部门岩心钻探生产效率的综合技术对策的必要性和意义。

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

Based on the purpose of gas geological drilling and non-equilibrium drilling theory,the paper summed up the gas geological drilling technology and the related technological measures,and emphasized the safety construction.

在论述了瓦斯地质钻探目的和非平衡钻探工艺理论的基础上,总结了瓦斯地质钻探施工工艺及相关技术措施并强调了安全施工要求。