Dependence of the mechanical properties of steel 32G2 drill pipe of strength group D on chemical compsoition

Metallurgist ◽  
1989 ◽  
Vol 33 (2) ◽  
pp. 44-45
Author(s):  
E. P. Mikhailova ◽  
L. V. Lovanova ◽  
I. G. Pogorelova
Keyword(s):  
Mechanical Properties ◽  
Drill Pipe ◽  
Strength Group ◽  
Group D

Heat treatment of drill pipe of strength group D

Metallurgist ◽  
1989 ◽  
Vol 33 (11) ◽  
pp. 225-226 ◽  
Author(s):  
V. K. Chernykh ◽  
L. A. Pisareva ◽  
K. M. Pikalova ◽  
V. A. Rodikov
Keyword(s):  
Heat Treatment ◽  
Drill Pipe ◽  
Strength Group ◽  
Group D

Influence of water and fatigue crack growth in samples of strength group D drill pipe

1983 ◽  
Vol 19 (2) ◽  
pp. 165-166
Author(s):  
A. I. Mikhel'man ◽  
Yu. D. Petrina ◽  
Yu. V. Zima ◽  
M. I. Savchuk
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Drill Pipe ◽  
Strength Group ◽  
Influence Of Water ◽  
Group D

Piecing Failure Analysis of Drill Pipe Upset

2011 ◽  
Vol 314-316 ◽  
pp. 1210-1213
Author(s):  
Fang Po Li ◽  
Yong Gang Liu ◽  
Wang Yong
Keyword(s):  
Mechanical Properties ◽  
Fracture Surface ◽  
Failure Analysis ◽  
Surface Analysis ◽  
Drill Pipe ◽  
Fatigue Property ◽  
Forging Process ◽  
Result Show ◽  
Fracture Surface Analysis ◽  
Mechanical Properties Testing

The failure cause of Φ127mm G105 IEU drill pipe upset was investigated through mechanical properties testing, optical morphologies and fracture surface analysis. The result show that drill pipe upset’s failure reason is the elephant hide and decarburization layer in its out-surface caused by improper upset treatment in forging process. Elephant hide and decarburization layer existing in drill pipe upset changed seriously reduced its strength and fatigue property. Under the effect of alternating stresses, the crack first initiated from the deepest position of elephant hide and developed quickly. In the end, it leaded the drill pipe to early piecing failure.

Corrosion-related improvement in physical and mechanical properties of light-alloy drill pipe materials

2019 ◽  
pp. 85-89
Author(s):  
A. Kh. Agliullin ◽  
◽  
R. A. Ismakov ◽  
A. I. Safraider ◽  
V. V. Leonov ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Drill Pipe ◽  
Physical And Mechanical Properties ◽  
Light Alloy ◽  
Pipe Materials

Optimizing the composition of steel for pipe of strength group D

2008 ◽  
Vol 38 (5) ◽  
pp. 416-418
Author(s):  
E. S. Chernykh ◽  
P. Yu. Gorozhanin ◽  
S. Yu. Zhukova ◽  
V. M. Farber
Keyword(s):  
Strength Group ◽  
Group D

Effect of Immersion Time on the Mechanical Properties of S135 Drill Pipe Immersed in H2S Solution

2014 ◽  
Vol 23 (11) ◽  
pp. 4072-4081 ◽  
Author(s):  
Zeng Dezhi ◽  
Tian Gang ◽  
Hu Junying ◽  
Zhang Zhi ◽  
Shi Taihe ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Immersion Time ◽  
Drill Pipe

Steel for weighted drill pipe and kellys of strength group ?K?

Metallurgist ◽  
1987 ◽  
Vol 31 (10) ◽  
pp. 336-337
Author(s):  
Yu. V. Yakubovich ◽  
V. M. Khokhlov ◽  
I. G. Pogorelova
Keyword(s):  
Drill Pipe ◽  
Strength Group ◽  
Weighted Drill

Effect of Extrusion Texture on Mechanical and Electrochemical Properties of Aluminum Alloy Drill Pipe

2018 ◽  
Vol 913 ◽  
pp. 157-167
Author(s):  
Xiao Hong Wang ◽  
Zheng Wei Peng ◽  
Gao Xu Li ◽  
Yuan Hua Lin ◽  
Hai Lun Wang
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloy ◽  
Electrochemical Properties ◽  
Cross Section ◽  
Drill Pipe ◽  
Extrusion Direction ◽  
Longitudinal Profile ◽  
Test Results ◽  
Electrochemical Testing ◽  
Special Service

Aiming at the special service environment of aluminum alloy drill pipe, in this paper, the influence of extrusion texture on the mechanical and electrochemical properties of aluminum alloy drill pipe was studied. And the macroscopic textures of longitudinal profile and cross section of aluminum alloy drill pipe were tested, and the tensile, compressive and impact mechanical properties were tested, followed by immersion and electrochemical testing. The results show that the texture which 2A12T4 aluminum alloy drill pipe contains is <001> and <111> along the extrusion direction and <223>, <101> in the transverse direction. The test results of mechanical properties show that the extruded texture will affects the mechanical properties of material. When the cross section and longitudinal profile samples of 2A12T4 were soaked in 3.5% NaCl solution at 25°C, 60°C and 90°C, their corrosion resistance are different. The pits of transverse specimens exhibit a dispersed distribution and that of longitudinal specimens are distributed along the extrusion direction.

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