Studying the quality of drill pipes clamped in a wedge clamp

Authors

DOI:

https://doi.org/10.15587/1729-4061.2019.174494

Keywords:

drill pipes, wedge clamp, load, stresses and deformations, gripping capacity

Abstract

Much attention has been recently paid to institutional measures aimed at improving quality of products related to petroleum machine building, in particular, the implementation of quality management systems based on the ISO standards of series 9000 [1]. However, technological methods of quality assurance have not been less important.

The paper considers the factors influencing the quality of a cylindrical thin-walled component during operation. The most significant factors are the efforts to which the component us exposed when it is captured by a clamping mechanism.

We have performed experiments into the effects of loads on a clamped component. The aim of these experiments was to establish the impact of various factors on stresses and deformations of cylindrical thin-walled components. The main factors, in addition to the applied forces, are the capturing angle of the clamping element, the length of its contact with a part, load distribution over the teeth of the clamping element.

Given the development of deep drilling and an increase in loads acting on the wedge clamps, the requirements to their gripping capacity become stricter. Insufficient gripping capacity of the wedge clamp could cause damage to a pipe at the place it is clamped by wedges.

In this case, clamping efforts act in the same region of a pipe, forming a thinned neck at long operation. The result of such damage is a premature failure of a drill pipe’s operation and the risk of an emergency.

Significant impact on the gripping capacity of a wedge clamp is exerted by the elements of its design. Of importance is also the stressed state of a drill pipe clamped by a wedge clamp. We have calculated the optimal geometrical characteristics for clamping jaws. The best indicators were demonstrated by the grooved jaws with oblique intersecting notch. We have considered the load distribution over the teeth of clamping jaws. It has been shown that the optimal load distribution over the teeth is provided by jaws with oblique intersecting notch. In this case, tooth 1 accounts for 26 % of the load, tooth 2‒22 %, tooth 3‒19 %, tooth 4‒17 %, tooth 5‒16 %.

The results obtained in the course of our research would make it possible to introduce such modifications to the design of clamping devices that could significantly improve their gripping capacity and reduce the risk of accidents

Author Biographies

Emin Musa Afandiyev, Azerbaijan State University of Economics (UNEC) Istiglaliyyat str., 6, Baku, Azerbaijan, AZ 1001

PhD, Associate Professor

Department of Standardization and Certification

Mahammadali Nuraddin Nuriyev, Azerbaijan State University of Economics (UNEC) Istiglaliyyat str., 6, Baku, Azerbaijan, AZ 1001

Doctor of Technical Sciences, Professor

Department of Standardization and Certification

References

  1. Standarty ISO serii 9000 (2000). Moscow: Izdatel'stvo standartov.
  2. Efendiyev, E., Allahverdiyev, R. (2002). ISO 9000 oils the wheels of petroleum engineering in Azerbaijan. ISO Management Systems, 3, 49–53.
  3. Raygorodskiy, R. P., Sudnitsyn, N. V. (1949). Pat. No. 95916 SSSR. Klin'evoy zahvat dlya buril'nyh i obsadnyh trub. declareted: 9.06.1949.
  4. Aslanov, Z. Y., Efendiyev, E. M. Abdullayeva, S. M. (2016). Experimental research design elements of wedge clamping device. Teoriya i praktika sovremennoy nauki, 5 (11), 63–68.
  5. Efendiev, E. M., Lopatuhin, I. M. (1980). Vliyanie smescheniya osi buril'noy truby na ee napryazhennoe sostoyanie pri zazhime v klinovom zahvate. Mashiny i neftyanoe oborudovanie, 12, 7–10.
  6. STP VNIIBT 1023-2004. Instruktsiya po raschetu i ekspluatatsii zamkovyh rez'bovyh soedineniy buril'noy kolonny i zaboynyh dvigateley.
  7. Evtiheev, N. N., Kupershmidt, YA. A., Papulovskiy, V. F., Skugorov, V. N. (1990). Izmerenie elektricheskih i neelektricheskih velichin. Moscow: Energoatomizdat, 352.
  8. Levesaue, C. (1984). Treatments help new pipe grins resist gallg. Oil and Gus J., 143, 118.
  9. TSarukov, A., Lopatuhin, I. M., Efendiev, E. M., Yaroshevskiy, F. (1970). Instrument dlya narezaniya kosyh vnutrennih nasechek. A. s. SSSR No. 356059. No. 1453340258; declareted: 27.11.1970; published: 20.11.1972, Bul. No. 32.
  10. Rukovodstvo po trubam neftyanogo sortamenta i ih soedineniyam, primenyaemym za rubezhom. Standarty Amerikanskogo neftyanogo instituta (1969). Moscow: Nedra.
  11. Yakhin, A. R., Ismakov, R. A., Garifullin, R. R., Yangirov, F. N. (2014). Surface hardening for drill pipe life improvement. Neftegazovoe delo, 4, 381–399.
  12. Bulatov, A. I., Proselkov, Yu. M., Shamanov, S. A. (2013). Tekhnika i tekhnologiya bureniya neftyanyh i gazovyh skvazhin. Vestnik nauki Sibiri, 3 (9).

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Published

2019-07-30

How to Cite

Afandiyev, E. M., & Nuriyev, M. N. (2019). Studying the quality of drill pipes clamped in a wedge clamp. Eastern-European Journal of Enterprise Technologies, 4(7 (100), 16–21. https://doi.org/10.15587/1729-4061.2019.174494

Issue

Vol. 4 No. 7 (100) (2019): Applied mechanics

Section

Applied mechanics

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Copyright (c) 2019 Emin Musa Afandiyev, Mahammadali Nuraddin Nuriyev

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