Analysis of API S-135 steel drill pipe cutting process by blowout preventer

Lukin, N. V.; Moura, Rafael Traldi; Alves, Marcı́lio; Brünig, Michael; Driemeier, Larissa

doi:10.1016/j.petrol.2020.107819

Cited by 12 publications

(3 citation statements)

References 16 publications

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“…Lee and Su (1999), Fakir et al (2018) and Bilal et al (2019) expressed the importance of evaluating the AISI 4340 alloy, given its strength and wide use in offshore applications, especially in components for deep oil and gas extraction. More recently, Lukin et al (2020) discussed about of API S-135 steel drill pipe cutting process by blowout preventer and required force with different geometries.…”

Section: Introductionmentioning

confidence: 99%

Damage to fracture in offshore engineering materials under several stress states: Blowout preventer valve application

Morales

Silva

Barros

et al. 2023

Advances in Structural Engineering

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This contribution proposes a study of the mechanical behavior from damage to fracture of normalized and annealed samples of AISI 4340 steel. Besides, a numerical study in a security device of offshore industry is conducted. Experimental tests were initially performed on smooth and notched cylindrical specimens subjected to monotonic tension as well as on rectangular specimens subjected to pure shear and a combination of shear and tension loads. Such experimental tests were selected to observe different combinations of the stress triaxiality and the normalized third invariant concerning the stress state. The two types of heat treatments were considered to achieve different levels of ductility and verify their influence on the fracture mode of the alloy. The approach based on the second invariant of the deviatoric stress tensor ( J 2), with nonlinear isotropic hardening, is assumed to describe the mechanical behavior of the material in axisymmetric and three-dimensional numerical simulations. Finite elements simulations were carried out to analyze the performance of a simplified version of a mechanism of a blow-out preventer-BOP valve. The experimental and numerical curves of force versus displacement were compared, highlighting the effect of the stress triaxiality, the third invariant and calibration condition on the behavior of the material. The evolution of the equivalent plastic strain was plotted, and the fracture onset compared with its maximum value. The results show that the AISI 4340 alloy is highly dependent on the stress triaxiality and third invariant. Moreover, it can be concluded that different calibration conditions for the isotropic hardening curve can result in different levels of forces for the correct performance of the BOP in a critical situation.

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Section: Introductionmentioning

confidence: 99%

Damage to fracture in offshore engineering materials under several stress states: Blowout preventer valve application

Morales

Silva

Barros

et al. 2023

Advances in Structural Engineering

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“…In the actual application, the coring tool is used as part of the drill pipe. As a result, the failure types of a drill pipe will be fit for a coring tool, and the failure of the thread joint will be common for the coring tool [9,10] .…”

Section: Introductionmentioning

confidence: 99%

Mechanical characteristics of a threaded joint of coring tool under makeup torque

Liu¹,

Yao²,

Yao³

2022

J. Phys.: Conf. Ser.

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Core samples play a very important role in understanding the characteristics and conditions of rock formation. The coring tool is the primary equipment used to obtain a core sample, which has been widely used in engineering, and oil and gas drilling, for example. In this paper, the models of conventional coring joints and special coring joints are established to study the mechanical properties of the two joints being subjected to makeup torque load. The results show that the design of the special coring tool with double shoulders effectively shares the force on the thread and has a good mechanical performance compared with the conventional single-shoulder coring tool.

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“…In the recent years, with the rapid development of anchoring construction and engineering construction, the crushing of the drill pipe has occurred frequently due to the more and more heavy and complex dynamic loadings. To solve this problem, a lot of research studies had been carried to analyze on the phenomenon and position of drill pipe failure mainly from the following four aspects: surface irregularities [3][4][5], upset area [6,7], corrosion pitting [8,9], and threaded connections [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Structural Parameters and the Teeth Shape of Slip in Drill Rig

Hua

Zhu

Gao³

2021

Mathematical Problems in Engineering

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In order to improve the performance of slip and reduce the extrusion damage of the drill pipe in the drill rig, the optimization of structural parameters and teeth shape of the slip while clamping the drill pipe had been researched in this article. On the macroscale, the structural parameters of the slip had been optimized with response surface method (RSM) and Multiobjective Genetic Algorithm (MOGA). The optimized result showed that the single weight of the slip had been reduced from 3.99 kg to 2.91 kg and the maximum deformation of the drill pipe was reduced from 3.75 mm on both sides to 2.56 mm on both sides. On the microscale, a mathematical model for the single slip teeth while clamping the drill pipe had been established to give a detailed description to calculate the equivalent coefficient of friction and provide the relationship between the frictional torque with the allowable compression strength. In addition, the finite element model that had been set up by ABAQUS was used to verify the mathematical model, and the comparison of results had shown the accuracy of the mathematical model of the slip teeth while clamping the drill pipe. According to the mathematical model of the slip teeth in the drill rig, while clamping the drill pipe, the optimal shape of the slip teeth in the drill rig was achieved under the following condition: the slope of the slip teeth θ is 60°, the top width of the slip teeth w h is 1.5 mm, and the depth of the slip teeth clamping the drill pipe d is 0.5 mm. The equivalent coefficient of friction f v can be increased from 1.73 to 2.06, and the optimal result f v increases 11.3%.

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Analysis of API S-135 steel drill pipe cutting process by blowout preventer

Cited by 12 publications

References 16 publications

Damage to fracture in offshore engineering materials under several stress states: Blowout preventer valve application

Damage to fracture in offshore engineering materials under several stress states: Blowout preventer valve application

Mechanical characteristics of a threaded joint of coring tool under makeup torque

Optimization of the Structural Parameters and the Teeth Shape of Slip in Drill Rig

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