Tribotechnic and structure characteristics evaluation for light-alloy drill pipe coatings

Shemyakinskiy, Boris Aleksandrovich; Lamonov, Andrey; Yakhimovich, V. A.; Shvetsov, O. V.

doi:10.1016/j.matpr.2020.01.140

Cited by 2 publications

(4 citation statements)

References 13 publications

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“…A solution with a temperature of 90° C, similar in characteristics to the drilling one, consisting of water, diesel fuel and CaCl2 mixed in equal proportions, is constantly fed into the friction pair of the drill pipe-protector, also the solution contains sand with a fraction of 0.6-0.8 mm, with a concentration of 30 g/l. Constant circulation and mixing and heating of the solution is provided [1].…”

Section: Fig 5 -Protector Installed On the Test Benchmentioning

confidence: 99%

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Testing of a Polymer Drill String Protector under Conditions close to Borehole

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Yakhimovich

Kolotiy

2023

KEM

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With today's proliferation of various polymers, it is necessary to assess the feasibility and feasibility of replacing rubber with more modern materials. The purpose of the tests was to study the effect of abrasive wear, the effect of temperature on material properties, resistance to chipping and other types of wear. This will allow assessing the possibility of application in well conditions, as well as determining the magnitude of the effect of each type of wear on the product. We were faced with the task of testing new protectors in conditions close to full-scale ones. For this, a stand was designed, which allows you to reproduce the lateral load, add abrasive and corrosive agents that affect the wear of the product, ensure circulation of the model fluid, with the characteristics of the drilling fluid, as well as study the effect of elevated temperature on the change in material properties. Due to the fact that in a real well the protector is not under constant load, especially in the vertical sections of the wellbore, but can rotate on the pipe, a day on the test bench can be equivalent to months when the protector is in the well. Therefore, the tests carried out can predict the wear of tread parts, as well as assess the reliability of the use of treads made of polymer materials.

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Section: Fig 5 -Protector Installed On the Test Benchmentioning

confidence: 99%

“…In the conditions of rapid development of the method of directional drilling, the problem of wear of drill and casing pipes during the development of wells still remains relevant [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Testing of a Polymer Drill String Protector under Conditions close to Borehole

Ref

Yakhimovich

Kolotiy

2023

KEM

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“…Therefore, in order to ensure drilling operation safety, lightweight metallic materials such as titanium alloys have shown great potential since they can effectively reduce friction and lower tensile stress level. 8,9 Meanwhile, titanium alloy has a higher strength and better corrosion resistance compared with steel carbon of the same grade. 10,11 Friction welding (FW) technology has been widely used in manufacture of carbon steel drill pipes.…”

Section: Introductionmentioning

confidence: 99%

“…In this environment, a steel drill pipe with high stiffness has to bend itself in order to fit the borehole trajectory and endure high alternating stress during the rotary drilling, which could lead to corrosion fatigue fracture within a short period. Therefore, in order to ensure drilling operation safety, lightweight metallic materials such as titanium alloys have shown great potential since they can effectively reduce friction and lower tensile stress level 8,9 . Meanwhile, titanium alloy has a higher strength and better corrosion resistance compared with steel carbon of the same grade 10,11 …”

Section: Introductionmentioning

confidence: 99%

The effect of friction welding on the mechanical properties and corrosion fatigue resistance of titanium alloy drill pipe

Mou

Lian

et al. 2021

Fatigue Fract Eng Mat Struct

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Titanium alloys are the best candidates to replace steels for drill pipes in horizontal wells. However, friction welding (FW) may significantly change the properties of titanium alloy drill pipes. In this work, the microstructure, tensile and impact mechanical properties, and corrosion fatigue performance of the FW zone were compared with those of the base alloy. The results show that the base material is mainly composed of equiaxed globular α (hcp)‐Ti, while the acicular α + β (bcc)‐Ti is dominant in the FW zone. Due to these differences in microstructure, the FW zone has higher strength but lower stiffness and toughness than the base alloy. In addition, the fatigue performance and corrosion resistance of the material decrease in drilling fluid. These results indicate that FW zones in titanium alloy drill pipes might be the weakest region where crack, fracture, and corrosion are more likely to occur.

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Tribotechnic and structure characteristics evaluation for light-alloy drill pipe coatings

Cited by 2 publications

References 13 publications

Testing of a Polymer Drill String Protector under Conditions close to Borehole

Testing of a Polymer Drill String Protector under Conditions close to Borehole

The effect of friction welding on the mechanical properties and corrosion fatigue resistance of titanium alloy drill pipe

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