The prediction technology of hole enlargement ratio in the condition of underbalanced drilling;
欠平衡钻井条件下的井径扩大率预测技术
At the same time , hole enlargement is a disadvantage of underbalanced drilling, it has a greater adverse impact on Cementing and completion of the well .
但是欠平衡钻井也存在井径扩大的缺点,对固井和完井产生较大的不利影响。
But through the use of diameter relative variances(borehole diameter enlargement coefficient) can effectively estimate rock strength grading and coal seam roof and floor stability.
在煤田测井中,井径的变化对其它测井参数是一种干扰,但利用井径的相对变化值(井径扩大系数),可有效地评估岩石的强度等级和可采煤层顶底板的稳定性。
The correction for the influence of hole diameter enlarging rate on cutting lag time.
井径扩大率对岩屑迟到时间的影响校正
Analysis of the borehole diameter anomaly expanding in well drilling process of high permeability sandstone formation in Lamadian Oil Field
喇嘛甸油田高渗透砂岩层钻井过程中井径异常扩大原因分析
medium-radius lateral drilling
中曲率半径侧向钻井
Design and Research of Hartmann Beam Expander with High Power and Wide Aperture;
高功率及大口径哈特曼扩束系统的设计研究
Making Big Spherical Symmetry GRIN Micro-Sphere by Suspension-Diffusion-Copolymerization;
悬浮扩散共聚法制备大粒径球对称梯度折射率微球
full diameter radial permeameter
大直径径向渗透率仪
Discussion on Revamping of The Large Diameter Piercing Head of 10MN Vertical Piercing Mill
10MN立式穿(扩)孔机大直径扩孔头的改造
extension of ultra high frequency coverage
扩大超高频率播送范围
2.17 No allowance for volume of hole enlargement.
不包括井眼扩大的泥浆体积。
Numerical simulation analysis of H_2S diffusion in a catastrophic gas blowout accident:A case study of Kai County in Chongqing
特大井喷H_2S扩散的数值模拟分析
high-output large-bore engine
大功率大缸径发动机
Using Bedrock Freezing for Safe and Rapid Construction of Large-Diameter Shaft
大直径井筒全井基岩冻结法安全快速施工
Summarization on large diameter vertical shaft back well method excavation construction technology
关于大直径竖井反井法开挖施工技术概述
The Construction Technology of the Frozen Air Shaft with Huge-Thick Soil and Major Diameter
巨厚表土层大直径立井井筒冻结法施工技术
Correlative Coding-An Effective Way to improveData Transmission Rate of Logging Cable
相关编码──提高测井电缆传输速率的有效途径
Exploration on Application of Safe and Quick Construction Technology to Large Diameter Deep Shaft
大直径深立井安全快速施工技术探讨
An increase in signal power, voltage, or current by an amplifier, expressed as the ratio of output to input.
扩大率，倍率扩大器中功率、电压、电流输出量的增加值与输入量之比
The variations of size (diameter) consist of a blowing-up of the images.
大小（直径）的变化包括图象的扩大。