Evaluation of a numerical model for tapered threaded connections subjected to combined loading using enhanced experimental measurement techniques

Galle, Timothy; Waele, Wim De; Wittenberghe, Jeroen Van; Baets, Patrick De

doi:10.1177/0309324715598916

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…On the other hand, for threaded pipe connections, Liang et al [ 10 ] and Hong et al [ 11 ] applied a piezoceramic-based active sensing method combined with the time reversal technique to detect the looseness of the connection, and the feasibility was successfully validated by laboratory experiments. However, other research literature related to this connection was focused on the failure behavior and design characteristics for improving the fatigue life of the connections [ 12 , 13 ]. For example, Van Wittenberghe [ 14 , 15 , 16 ] conducted a series of experimental and numerical studies to improve the fatigue life of pipeline couplings.…”

Section: Introductionmentioning

confidence: 99%

Loosening Monitoring of a Threaded Pipe Connection Using the Electro-Mechanical Impedance Technique—Experimental and Numerical Studies

Liang

Feng

et al. 2018

Sensors

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Threaded connections are the most common pipe fittings used in oil and gas transportation systems. Due to external vibrations, cyclic loads, and pollution, the fitting parts may start getting loose, which could result in pipeline leaks and other environmental disasters. It is of great significance to develop a reliable technique that could provide real-time monitoring of the looseness of pipeline fittings. In this paper, a piezoceramic-based active sensing method combined with the electro-mechanical impedance (EMI) technique was developed to monitor the health condition of threaded pipe connections in real time. Two pipe segments coupled with a threaded coupling fitting were assembled in the laboratory, and a lead zirconate titanate (PZT) patch was surface bonded onto the coupling part. In the experiment, the PZT impedance signatures were measured at each simulated loosening condition. A root-mean-square deviation (RMSD) method was employed to build a looseness index from the measured impedance signatures. To verify the effectiveness of the developed EMI technique, the experimental results were compared with those computed from a numerical simulation. The good agreement from experimental and numerical results highlights that the developed piezoceramic-based EMI technique has great potential for determining early looseness, as well as for monitoring the health status of the pipeline fitting during its service life.

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Section: Introductionmentioning

confidence: 99%

Loosening Monitoring of a Threaded Pipe Connection Using the Electro-Mechanical Impedance Technique—Experimental and Numerical Studies

Liang

Feng

et al. 2018

Sensors

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Fatigue resonant tests on drill collar rotary shouldered connections and critical thread root identification

Santus

Bertini

Burchianti³

et al. 2018

Engineering Failure Analysis

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Correlation of Numerical Simulation and DIC Strain Measurements for a Multilateral Junction while Subjected to High Internal Pressure

Aihua

Steele

Droessler

2018

Day 4 Thu, May 03, 2018

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This paper investigates stress and strain distributions determined through finite-element analysis (FEA) simulation and three-dimensional (3-D), digital image correlation (DIC) measurements obtained during full-scale testing of a Technology Advancement of Multilaterals (TAML) Level 5 multilateral junction prototype subjected to high internal pressure. A multilateral well consists of one main wellbore with one or more lateral wellbores drilled from the main wellbore. The point at which a lateral is drilled from the main wellbore is identified as the wellbore junction. The wellbore junction's integrity is important to the success of the multilateral well construction (Samuel and Gao 2007). A TAML Level 5 junction is necessary to create pressure isolation across both lateral and mainbore legs to withstand high-pressure/high-temperature (HPHT) conditions in deeper oil and gas wells (TAML 2002). This study discusses a completion system TAML Level 5 multilateral junction subjected to a qualification program, including internal and external pressure cycles with the junction in a deployed position to verify pressure integrity. The junction was evaluated through both numerical simulation and full-scale physical testing of a prototype, which was designed to be run in 10-3/4-in., 65.7-lb casing with a 5-1/2-in. lateral leg and a 3-1/2-in. mainbore leg. This paper investigates stress and strain distributions determined through FEA simulation and 3-D DIC measurements obtained during full-scale testing of a junction at 6,000-psi internal pressure. Although DIC has been widely used for strain measurements within the industry, it was introduced into the junction-test program to meet increasingly challenging environments. Compared to conventional strain-gauge measurements, DIC allows for full-field strain measurements, including points at which complex geometries exist, such as the external intersection of the main and lateral legs, which is commonly the critical area with high stress concentrations. A correlation and comparison between the numerical simulation and DIC measurements are discussed to qualitatively validate the FEA model with experimental results. The petroleum industry requires more advanced technologies as wells are drilled in more challenging environments (i.e., deep sea, artic environments, higher pressures, etc.). To provide these advanced technologies, engineers need the capability to help ensure their designs meet the requirements of such challenging environments. DIC provides a means to qualitatively validate the numerical simulations for complex designs.

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Evaluation of a numerical model for tapered threaded connections subjected to combined loading using enhanced experimental measurement techniques

Cited by 3 publications

References 11 publications

Loosening Monitoring of a Threaded Pipe Connection Using the Electro-Mechanical Impedance Technique—Experimental and Numerical Studies

Loosening Monitoring of a Threaded Pipe Connection Using the Electro-Mechanical Impedance Technique—Experimental and Numerical Studies

Fatigue resonant tests on drill collar rotary shouldered connections and critical thread root identification

Correlation of Numerical Simulation and DIC Strain Measurements for a Multilateral Junction while Subjected to High Internal Pressure

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