Analysis of fatigue crack growth and estimation of residual life of the walking beam of an oilfield pumping unit

Larrainzar, C.; Korin, I.; Ipiña, Juan E. Perez

doi:10.1016/j.engfailanal.2009.12.003

Cited by 7 publications

(4 citation statements)

References 4 publications

(4 reference statements)

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“…As a new type of pumping unit, its technical features and dynamic strength of the key components are worthy of attentions. So far, the kinematic and stress analysis of the key components of beam-type pumping unit are available [18][19][20]. However, these work are mainly focus on the high-slip motors and double horse-head pumping units [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Dynamic strength analysis of the key components of the beam-type pumping unit with dynamic tracking balance

Wang

2021

Frattura Ed Integrità Strutturale

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Aiming at the shortages of large reversing impact, high energy consumption and poor balance effect of conventional beam-type pumping unit, the design scheme of beam-type pumping unit with dynamic tracking balance is proposed. The load-displacement curves from on-site trial shows that pumping with dynamic tracking balance has a better balance effect, and a production and power efficiency. According to the designed structure, the dynamic responses of the beam and connecting rods are analyzed. The results show that the maximum Mises stresses in the beam and connecting rod are 36.96 MPa and 27.83 MPa, respectively. The key components of designed beam-type pumping unit with dynamic tracking balance meet the requirement of strength.

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Section: Introductionmentioning

confidence: 99%

Dynamic strength analysis of the key components of the beam-type pumping unit with dynamic tracking balance

Wang

2021

Frattura Ed Integrità Strutturale

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“…This makes the stress simulation and analysis for key components of beam pumping units more interesting topic in its maintenance operation. Larrainzar [5] has presented an analysis of the fatigue crack growth and the corresponding residual life evaluation of the walking beam in an oilfield pumping unit.…”

Section: Introductionmentioning

confidence: 99%

A parameter optimization method for stress simulation of double horse head pumping unit dynamics model with cable

Zou¹,

Chen²,

Zou³

et al. 2017

J. vibroeng.

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Some components in Double horse head (DHH) pumping unit may occur cracking failure due to high cycle alternating stress, and this makes the research on dynamic stress simulation for them more interesting topic in its maintenance operation. This paper aims to improve the accuracy of dynamic stress simulation model through a parameter optimization method for the cable joints in DHH pumping unit. A series of cylinders was employed to model the steel cable, and the back horse head was also transformed to flexible body, then a rigid-flexible multibody dynamics model with cable was constructed to simulate the dynamic stress of components in DHH pumping unit. Stiffness and damping coefficient in cable joints have a significant effect on the model performance, and an unreasonable value may cause a strong vibrational and undesirable model response, therefore, a Memetic Algorithms based method was proposed to optimize them for improving the simulation accuracy using tested stress as objective function. Results show that the dynamic stress simulated from improved model is much closer to the experimental test compared with the original model, and these optimized parameters are also valid for the model in other working condition.

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“…Dari screening table yang dipergunakan maka mekanisme kerusakan yang mungkin terjadi ditampilkan dalam tabel 2. Berdasarkan screening table yang telah dilakukan dengan mengacu pada ASME PCC-3 dan API RP 571 maka disimpulkan bahwa jenis kerusakan yang terjadi pada CNG Buffer Storage Tank adalah tipe Uniform Corrosion dan Under Deposit Corrosion(Larrainzar et al, 2010).Gambar 2. CNG Buffer Storage Tank…”

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Analisis Keselamatan Dan Kelayakan Penggunaan CNG Buffer Storage Tank Berbasis Metode Residual Life Assessment

Rozie¹

2022

AME

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Keselamatan operasi minyak dan gas bumi merupakan aspek yang sangat penting dalam proses produksi, eksploitasi dan eksplorasi, sehingga sangat perlu untuk memastikan bahwa semua elemen yang dipergunakan dapat dijamin kelayakan dan penggunaan nya. CNG Buffer Storage Tank merupakan pressure vessel yang dipergunakan untuk menyimpan fluida gas di instalasi pengolahan gas alam. CNG Buffer Storage Tank tersebut tidak memiliki data teknis yang cukup untuk menjamin keselamatan dan keamanan operasi, sehingga dalam penelitian ini akan dilakukan kajian teknis yang komprehensif untuk memastikan kondisi aman dari CNG Buffer Storage Tank. Metode yang dipergunakan dalam penelitian ini adalah metode Residual Life Assessment (RLA) yang merujuk pada standar & code dari proses fabrikasi dan aspek inspeksi yang telah dilakukan pada CNG Buffer Storage Tank. Dari hasil analisis yang telah dilakukan menghasilkan tingkat risiko dari penggunaan CNG Buffer Storage Tank masuk dalam kategori medium-high risk karena terjadi general uniform corrosion dan under deposit corrosion dengan kondisi yang wajib dilakukan de-rating dari tekanan desain awal menjadi 140 kg/cm 2 dan estimasi sisa umur layan sebesar 11 tahun sehingga CNG Buffer Storage Tank dapat beroperasi dengan batasan yang telah ditentukan.

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Analysis of fatigue crack growth and estimation of residual life of the walking beam of an oilfield pumping unit

Cited by 7 publications

References 4 publications

Dynamic strength analysis of the key components of the beam-type pumping unit with dynamic tracking balance

Dynamic strength analysis of the key components of the beam-type pumping unit with dynamic tracking balance

A parameter optimization method for stress simulation of double horse head pumping unit dynamics model with cable

Analisis Keselamatan Dan Kelayakan Penggunaan CNG Buffer Storage Tank Berbasis Metode Residual Life Assessment

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