Working mechanism and experimental study of electromagnetic measurement while drilling systems based on a relay station

2021 ◽  
Author(s):  
Chunhua Lu ◽  
Rongjing Wang ◽  
Huibin Zhao ◽  
Tao Zhang
Keyword(s):  
Experimental Study ◽  
Relay Station ◽  
Working Mechanism ◽  
Measurement While Drilling ◽  
Electromagnetic Measurement

The Rubber O-Ring Seal Structure Simulation Research of Electromagnetic Measurement while Drilling Instrument

2012 ◽  
Vol 271-272 ◽  
pp. 1717-1721
Author(s):  
Meng Zhang ◽  
Ai Guo Yao ◽  
Yuan Zheng Luo ◽  
Xiao Dong Hu
Keyword(s):  
Finite Element ◽  
Design Theory ◽  
Influence Factors ◽  
Structure Design ◽  
Element Analysis ◽  
Simulation Research ◽  
Finite Element Software ◽  
Measurement While Drilling ◽  
Ring Seal ◽  
Electromagnetic Measurement

The instrument of electromagnetic measurement while drilling （EM-WMD）works in the underground environment. In the case of mechanical structure design, sealing is a key problem that needs to be focused. Based on the application of using the traditional design theory to determine the sealing structure and size, finite element analysis is implemented on the rubber O-ring radial seal structure by using the nonlinear finite element software MSC.Marc. The numerical simulation is processed according to different parameters both of axis and axle sleeve gap value and seal groove fillet radius value, and then both of the influence factors of sealing effect are analyzed. Finally , based on this, the relevant seal structure size is optimized.

Non-invasive electromagnetic measurement of the peripheral pulsatile blood flow: experimental study and clinical applications

1978 ◽  
Vol 12 (1) ◽  
pp. 66-68 ◽  
Author(s):  
H. J. L. BOCCALON ◽  
B. J. L. CANDELON ◽  
H. G. DOLL ◽  
P. F. PUEL ◽  
A. P. ENJALBERT
Keyword(s):  
Experimental Study ◽  
Blood Flow ◽  
Clinical Applications ◽  
Pulsatile Blood Flow ◽  
Non Invasive ◽  
Electromagnetic Measurement

Working mechanism and experimental study of dual-diameter and bi-speed composite drilling tool

2020 ◽  
Vol 17 (6) ◽  
pp. 363-372 ◽  
Author(s):  
Jialin Tian ◽  
Xuehua Hu ◽  
Liming Dai ◽  
Liang Zhang ◽  
Heng Li ◽  
...  
Keyword(s):  
Experimental Study ◽  
Working Mechanism ◽  
Drilling Tool ◽  
Composite Drilling

scholarly journals A Low Error Rate BCH-Based Encoder-Decoder Approach for Electromagnetic Measurement While Drilling System

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 34599-34608
Author(s):  
Cheng Zhang ◽  
Haobin Dong ◽  
Jiahao Wang ◽  
Jian Ge ◽  
Huan Liu ◽  
...  
Keyword(s):  
Error Rate ◽  
Measurement While Drilling ◽  
Drilling System ◽  
Electromagnetic Measurement

Static Experimental Study on Composite Beam with Concrete filled Steel Tubular Truss

2011 ◽  
Vol 374-377 ◽  
pp. 1680-1684 ◽  
Author(s):  
Jing Feng Wang ◽  
Bo Wang ◽  
Zhong Ming Zheng
Keyword(s):  
Experimental Study ◽  
Composite Beam ◽  
Strain Distribution ◽  
High Strength ◽  
The Novel ◽  
Test Program ◽  
Working Mechanism ◽  
Deformation Curves ◽  
High Rise ◽  
Failure Models

To research the mechanical behaviour of the novel composite beam with concrete filled steel tubular (CFST) truss, an experimental study of simple composite beam subjected to monotonic loading is described. A test program was developed to investigate failure models and working mechanism of the typed composite structure. Load-deformation curves, deflection regulation, strain distribution of beam were analyzed and asserted. The experimental and analytic results show that the typed composite beam has high strength, excellent ductility, and torsion performance. It can be used the large span bridges and high rise buildings.

Sign in / Sign up

Export Citation Format

Share Document