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1)  stages of screwdrill
螺杆钻具级数
2)  positive displacement motor
螺杆钻具
1.
The consecutive life of the positive displacement motor depends on its main shaft bearing assembly,but the assembly is a weak point.
由于螺杆钻具本身具有良好的动力特性,在套管内侧钻中得到广泛应用。
2.
During directional drilling in the coal mine engineering hole ,the lateral force on bit is one of major mechanical properties of the positive displacement motor assembly (PDM), which includes the bent sub-positive displacement motor assembly (BS-PDM) and the bent housing-positive displacement motor assembly (BH-PDM).
用螺杆钻具组合实施煤矿工程孔定向钻进时,钻头侧向力是其主要力学特性。
3.
In oil drilling engineering, the workers play much attention on how to increase the rate of penetration during controlling deviation of vertical well The structure of drill-assembly, which uses single bend PDM (positive displacement motor) to control hole deviation, is presented in this paper.
本文提出了利用单弯螺杆钻具来控制井斜的钻具组合结构,单弯螺杆钻具组合可以在低钻压下获得较高的转速,不但有利于控制井斜也有利于提高机械钻速。
3)  screw drilling tool
螺杆钻具
1.
Study on the rubber stator compoundof one step injection screw drilling tool;
一步法注射螺杆钻具橡胶定子胶料的研制
2.
Design of the hydraulic testing platform for screw drilling tool;
螺杆钻具液马达试验架的设计
3.
A computer aided test (CAT) system for testing the performance of screw drilling tools and screw drilling motors are developed.
开发了螺杆钻具、螺杆泵性能计算机辅助测试 (CAT)系统 ,介绍了该系统的硬件构成以及数据采集处理软件的模块功能及设计方
4)  screw drill tool
螺杆钻具
1.
To meet the demand of higher built-up rate,single-bending screw drill tool with large angle is used during the drilling of the moderate-and short-radius horizontal well.
钻中短半径水平井,在采用弯角较大的单弯螺杆钻具以满足高造斜率的需要时,由于套管内径较小,螺杆钻具钻头处位移比较大,螺杆钻具能否顺利通过直井段是钻中短半径水平井面临的一个重要问题。
2.
The downhole milling pipe string of screw drill tool will produce great reverse torque while milling and grinding the bridge plug, cement plug and so on, and which is extremely harmful to the screw drill tool.
针对螺杆钻具磨铣钻削井下桥塞、水泥塞及类似钻削工作中管柱在井下所产生的巨大反扭矩的危害,在对磨铣钻削管柱进行受力分析的基础上,提出了改进方案,即“井下防扭装置”和“磨铣钻削管柱的配置”,有效地降低了反扭矩带来的危害,改善了磨铣钻削管柱的受力状况。
3.
The operation performance of PDC bits with screw drill tool appplied now in oilfield were analyzed comprehensively.
综合分析了目前使用的PDC钻头和螺杆钻具工作特性。
5)  screw drill
螺杆钻具
1.
Analysis of structural improvement of flexible shaft of screw drill;
螺杆钻具挠性轴结构改进分析
2.
Development and application of test bed for large torque screw drill;
大扭矩螺杆钻具试验台的研制及应用
3.
Investigation in WC-Co coating of detonation spraying and its application on screw drills;
爆炸喷涂WC-Co涂层研究及在螺杆钻具中的应用
6)  PDM
螺杆钻具
1.
BULIT-UP RATE AND PDM'S STRESS ANALYSIS FOR MEDIUM- AND SHORT-RADIUS HORIZONTAL WELLS;
中短半径水平井造斜率与螺杆钻具应力研究
2.
DESIGN AND PERFORMANCE ANALYSIS FOR EQUIDISTANT LINING OF PDM;
螺杆钻具等壁厚衬套的设计及仿真分析
3.
PERFORMANCE ANALYSIS FOR UNIFORM WALL THICKNESS BUSHING OF PDM;
螺杆钻具等壁厚衬套性能分析
补充资料:螺[1,3,3-三甲基吲哚-B-苯并二氢吡喃]
CAS:1592-43-4
中文名称:螺[1,3,3-三甲基吲哚-B-苯并二氢吡喃]
英文名称:trimethylindolinonaphthopyrylospiran
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条