Justification of the structural strength of a connection of a steel head and a carbon-plastic pump rod

Keywords

hybrid pump rod, carbon-plastic core of the rod, fiberglass shell of the rod, finite element analysis, tension, bending.

Cite as

Bakun B. M. and Krechkovska H. V. Justification of the structural strength of a connection of a steel head and a carbon-plastic pump rod. Physico¬chemical Mechanics of Materials. 2024. 60(3), 072-076.

https://doi.org/10.15407/pcmm2024.03.072

Abstract

The peculiarities of the stress-strain state of hybrid sucker rods (with a carbon fiber core and a fiberglass shell) for oil production are considered. The design of the connection of the steel head with the body of the hybrid rod was proposed. The finite element method was used to analyze the stress in the rod elements connection under bending and tensile loading. It was established that the stresses are three times lower than the ultimate strength. The structural design of carbon-plastic rods connection with steel heads is recom¬mended for use in the oil production process.

References

1. Y. I. Tsai, E. J. Bosze, E. Barjasteh, and S. R. Nutt, “Influence of hygrothermal environment on thermal and mechanical properties of carbon fiber/fiber glass composites,” Compos. Sci. Technol., 69, Is. 3, 432-437 (2009). https://doi.org/10.1016/j.compscitech.2008.11.012
2. E. Barjasteh, E. J. Bosze, and S. R. Nutt, “Thermal aging of fiberglass/carbon-fiber hybrid composites,” Composites Part: A., 40, Is. 12, 2038-2045 (2009). https://doi.org/10.1016/j.compositesa.2009.09.015
3. Y. Swolfs, I. Verpoest, and L. Gorbatikh, “Tensile failure of hybrid composites: Measuring, predicting and understanding,” IOP Conf. Ser. Mater. Sci. Eng., 139 (2016). Article number 012008. https://doi.org/10.1088/1757-899X/139/1/012008
4. K. Naito, and H. Oguma, “Tensile properties of novel carbon/glass hybrid thermoplastic composite rods under static and fatigue loading,” Materia, 22, Is. 2, (2017). Article number e11843. https://doi.org/10.1590/s1517-707620170002.0176
5. Y. Zhang, J. Che, H. Zhang, F. Li, J. Zhang, H. Wang, and D. Pei, “An evaluation of the influence of mechanical strength on carbon/glass hybrid rods under various design parameters,” Geoenergy Sci. and Eng., (2024). Article number 212927. https://doi.org/10.1016/j.geoen.2024.212927
6. B. Kopei, I. Kopei, V. Kopei, O. Onysko, and V. Mykhailiuk, “Comparison of the main parameters of the steel and carbon-fiber-reinforced plastic band traction units for long-stroke oil well pumps,” Lecture Notes in Networks and Systems, 687, 86-97 (2023). https://doi.org/10.1007/978-3-031-31066-9_10
7. S. Fakher, A. Khlaifat, M. E. Hossain, and H. Nameer, “A comprehensive review of sucker rod pumps’ components, diagnostics, mathematical models, and common failures and mitigations,” J. of Petroleum Exploration and Product. Technol., 11, 3815-3839 (2021). https://doi.org/10.1007/s13202-021-01270-7
8. V. B. Kopei, I. I. Seliga, B. V. Kopei, and Yu. D. Petryna, Connection of the Pump Rod Head with the Fiberglass Body [in Ukrainian], Patent of Ukraine No. 50093, Е21В17/02, Publ. 15.10.2002, Bull. No. 10.
9. Ye. I. Kryzhanivskyi, B. P. Kopei, I. I. Seliga, and V. B. Kopei, Connection of the Steel Head with the Polymer-Composite Body of the Pump Rod [in Ukrainian], Patent of Ukraine No. 50094, МПК Е21В17/02, Publ. 15.10.2002, Bull. No. 10.
10. API SPEC 11B:2010/ERR 2:2011. Specification for Sucker Rods, Polished Rods and Liners, Couplings, Sinker Bars, Polished Rod Clamps, Stuffing Boxes, and Pumping Tees, API Publ. Services, Washington (2010).
11. B. V. Kopei, H. V. Krechkovska, I. B. Kopei, and B. M. Bakun, “Specific features of corrosion-fatigue fracture of steel and hybrid pump rods,” Mater. Sci., 58, No. 6, 768-773 (20230. https://doi.org/10.1007/s11003-023-00728-9
12. H. Krechkovska, B. Kopey, B. Bakun, and I. Kopey, “Peculiarities of fatigue crack growth in steel and composite sucker rods,” Proc. Structural Integrity, 42, 1406-1413 (2022). https://doi.org/10.1016/j.prostr.2022.12.179
13. E. I. Kryzhanivs’kyi, I. M. Hoisan, and O. Z. Student, “Specific features of the growth of fatigue cracks in 36G2S steel of drill pipes after the recovery heat treatment,” Mater. Sci., 50, Is. 1, 92-97 (20140). https://doi.org/10.1007/s11003-014-9695-6
14. B. Kopey, H. Krechkovska, V. Nisonskiy, and B. Bakun, “Regularities of growth of fatigue cracks in hybrid pumping rods,” Mater. Sci., 57, Is. 4, 549-556 (2022). https://doi.org/10.1007/s11003-022-00577-y
15. H. V. Krechkovska, B. M. Bakun, O. Z. Student, and I. B. Kopei, “Impact toughness and fractographic peculiarities of fracture of a composite pump rod,” Mater. Sci., 59, No. 5, 616-622 (2023). https://doi.org/10.1007/s11003-024-00818-2