Technological and Operational Features of Drill Pipes from Aluminum Alloys 2024 and 1953

Kondrat’ev, S. Yu.; Shvetsov, O. V.

doi:10.1007/s11041-018-0236-z

Cited by 17 publications

(10 citation statements)

References 5 publications

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“…At development and production of equipment, constructions and buildings of various types and functions its resistances to corrosion are of essence [1][2][3][4][5][6][7][8][9][10]. In the recent times for protection the underground metal constructions (UMC) from corrosion, combined methods, including combined use of coatings and electrochemical protection are increasingly often used [11][12][13]. The existing normative documents, including Russian State Standards GOST 9.602 -2005 [14] and GOST R 51164 -98 [15] require providing of a certain level of polarization protection potential, which is measured with respect to saturated copper-sulfate electrode of comparison.…”

Section: The Problem Statementmentioning

confidence: 99%

Influence of the soil electrical conductivity in the area of the underground pipeline on energy efficiency of the cathodic protection

2018

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In this paper we consider main factors which have an influence on energy efficiency of the cathodic protection and analyze them. Cathodic protection is defined as the ratio of the electrical conductivity of electrolyte, which surrounds the underground (underwater) metal construction (pipeline) and its polarization resistance. The obtained results are correct first of all for the case of presence of modern qualitative insulation, which possess high dielectric properties and is made of, for example, polymers or its’ composition and is meant to be used for protection against electrochemical corrosion of the underground pipelines

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Section: The Problem Statementmentioning

confidence: 99%

Influence of the soil electrical conductivity in the area of the underground pipeline on energy efficiency of the cathodic protection

2018

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“…At present, drilling resources into deep resources is the general trend, and with the continuous increase in drilling depth, the requirements for drill pipes are getting higher and higher [1]. Aluminum alloy drill pipes have become a scientific optimization solution for designing ultra-deep well drill strings, due to their advantages such as light weight, low energy consumption, small bending stress, and strong corrosion resistance compared with traditional rigid drill pipes [2][3][4]. However, the development of aluminum alloy drill pipes is limited due to their poor tribological properties [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Study on Wear Resistance of Nickel Cladding Layer with Imitation Shell Convex Strip Structure on the Surface of 7075 Aluminum Alloy Drill Pipe

Zhao

Liao

et al. 2023

Coatings

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In this study, a nickel cladding layer with a bionic convex strip structure was applied to the surface of an aluminum alloy drill pipe, and laser cladding technology was used to improve the wear resistance of the aluminum alloy drill pipe. Firstly, by observing the morphological characteristics of the shell surface, the ratio of the width of the convex strips to the spacing between the convex strips was obtained as 0.39–0.53, and thus a model of the bionic structure was constructed. Numerical simulations were performed, and the results showed that the wear of the bionic structure was reduced by 77.6% compared with that of the smooth structure. Subsequently, the cladding layers of both structures were coated on the drill pipe using nickel powder as the material, and wear tests were performed. The microstructure, composition, and hardness behavior of the cladding layers were analyzed using scanning electron microscopy, an X-ray diffractometer, and a microhardness tester. It was found that the cladding layer mainly consists of Al3Ni2, and there is a transition layer between the cladding layer and the aluminum alloy matrix, whose hardness is lower than that of Al3Ni2. In addition, the groove space can be formed between the convex strips, which effectively reduces the frequency of the debris flow. The results of the wear tests show that the wear of the cladding layer with the bionic structure is reduced by 74.0%. Similar results in numerical simulations and experiments verified that the designed cladding layer with a bionic convex strip structure can significantly improve the wear resistance of aluminum alloy drill pipes.

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“…The performance of drill pipes has become increasingly important in recent years due to the growing number of complex well types, including deep wells, ultra-deep wells, and large displacement horizontal wells. Aluminum alloy drill pipes are popular due to their lightweight, good corrosion resistance, low bending stress, and non-magnetic properties [1][2][3]. However, the low hardness of the aluminum alloy drill pipe and the inevitable spiral bending downhole result in significant wear between the pipe and the wellbore and casing, leading to a reduced lifespan for the aluminum alloy drill pipe [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Wear Resistance Study of Bionic Pitted Ni Cladding Layer on 7075 Aluminum Alloy Drill Pipe Surface

Li,

Gao,

Zhao

et al. 2023

Coatings

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To enhance the lifespan of drill pipes and minimize wear, this study introduces a bionic structure model inspired by the pit shape structure found in the dung beetle’s abdomen. The stress distribution and wear of bionic pitted structure and ordinary structure are simulated by finite element software. The findings revealed that the bionic structure significantly improves stress distribution, resulting in an impressive 81.3% increase in lifespan. Subsequently, the surface of the 7075 aluminum drill pipe was coated with Ni powder by a laser cladding system. Wear tests were conducted to analyze the wear and surface damage behavior of the cladding layer. The microstructure, composition, and microhardness of the cladding layer were measured and observed. The results showed that the cladding layer was mainly composed of Al3Ni2 and had high hardness. Additionally, a transition region exists between the cladding layer and the substrate, comprising relatively low hardness Al, thereby enhancing the drill pipe’s ability to withstand alternating loads. Furthermore, the bionic structure possesses the capability to store particles, effectively reducing the occurrence of abrasive wear and increasing the lifespan by 70.0%.

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Technological and Operational Features of Drill Pipes from Aluminum Alloys 2024 and 1953

Cited by 17 publications

References 5 publications

Influence of the soil electrical conductivity in the area of the underground pipeline on energy efficiency of the cathodic protection

Influence of the soil electrical conductivity in the area of the underground pipeline on energy efficiency of the cathodic protection

Study on Wear Resistance of Nickel Cladding Layer with Imitation Shell Convex Strip Structure on the Surface of 7075 Aluminum Alloy Drill Pipe

Wear Resistance Study of Bionic Pitted Ni Cladding Layer on 7075 Aluminum Alloy Drill Pipe Surface

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