Mechanical strength of electrically insulated pipeline connection obtained by means of radial plastic deformation of structural components

Authors: F.I. Dautov, R.M. Shammasov, S.Yu.Knyazev (TatNIPIneft, RF, Bugulma), R.A. Nugaibekov, O.Yu. Budnik (UK OOO TMS Group, RF, Almetyevsk)

Key words: electrochemical protection, electrically insulating connections, operating reliability, mechanical strength in the axial direction, allowable values of radial plastic deformation, oilfield pipelines and equipment.

This article discusses commercial applications of electrically insulated connections for electrochemical protection of oilfield equipment used in OAO TATNEFT. A procedure is proposed for calculating the mechanical strength in the axial direction for electrically insulated connections obtained through radial plastic deformation of their structural components. Technological solutions are presented to increase axial mechanical strength while maintaining allowable radial deformation extent specified in the design of electrically insulated pipeline connections. Case histories of the technology applications on oilfield pipelines of OAO TATNEFT are provided.

References

1. Alimov S.V. et al., Gazovaya promyshlennost' – GAS Industry of Russia, 2010, no. 11, pp. 72-76.

2. Patent no. 2268435 RF, MPK F 16 L 25/03, Mode of making a current insulating insertion for a pipeline, inventors: Ibragimov N.G., Dautov F.I., Fadeev V.G., Gareev R.M., Sotnikov E.V., Shammasov R.M.

3. Gaydukov V.P., Tekhnicheskie raschety pri ekspluatatsii neftyanykh skvazhin (Technical calculations for the oil wells exploitation), Moscow: Gostoptekhizdat Publ., 1961, 272 p.

4. Averkiev Yu.A., Averkiev A.Yu., Tekhnologiya kholodnoy shtampovki (Cold stamping technology), Moscow: Mashinostroenie Publ., 1989, 211 p.

5. VSN 009-88 “Stroitel'stvo magistral'nykh i promyslovykh truboprovodov. Sredstva i ustanovki elektrokhimzashchity” (Construction of main and field pipelines. Tools and units for electrochemical protection).

6. Gareev R.M., Dautov F.I., Shammasov R.M., Neftyanoe khozyaystvo – Oil Industry, 2010, no. 7, pp. 65-67.

7. Patent no. 2406911 RF, MPK F 16 L 25/03, Procedure for fabrication of electro-insulating insertion for pipeline, inventors: Ibragimov N.G., Gareev R.M., Dautov F.I., Shammasov R.M.

Key words: electrochemical protection, electrically insulating connections, operating reliability, mechanical strength in the axial direction, allowable values of radial plastic deformation, oilfield pipelines and equipment.

This article discusses commercial applications of electrically insulated connections for electrochemical protection of oilfield equipment used in OAO TATNEFT. A procedure is proposed for calculating the mechanical strength in the axial direction for electrically insulated connections obtained through radial plastic deformation of their structural components. Technological solutions are presented to increase axial mechanical strength while maintaining allowable radial deformation extent specified in the design of electrically insulated pipeline connections. Case histories of the technology applications on oilfield pipelines of OAO TATNEFT are provided.

References

1. Alimov S.V. et al., Gazovaya promyshlennost' – GAS Industry of Russia, 2010, no. 11, pp. 72-76.

2. Patent no. 2268435 RF, MPK F 16 L 25/03, Mode of making a current insulating insertion for a pipeline, inventors: Ibragimov N.G., Dautov F.I., Fadeev V.G., Gareev R.M., Sotnikov E.V., Shammasov R.M.

3. Gaydukov V.P., Tekhnicheskie raschety pri ekspluatatsii neftyanykh skvazhin (Technical calculations for the oil wells exploitation), Moscow: Gostoptekhizdat Publ., 1961, 272 p.

4. Averkiev Yu.A., Averkiev A.Yu., Tekhnologiya kholodnoy shtampovki (Cold stamping technology), Moscow: Mashinostroenie Publ., 1989, 211 p.

5. VSN 009-88 “Stroitel'stvo magistral'nykh i promyslovykh truboprovodov. Sredstva i ustanovki elektrokhimzashchity” (Construction of main and field pipelines. Tools and units for electrochemical protection).

6. Gareev R.M., Dautov F.I., Shammasov R.M., Neftyanoe khozyaystvo – Oil Industry, 2010, no. 7, pp. 65-67.

7. Patent no. 2406911 RF, MPK F 16 L 25/03, Procedure for fabrication of electro-insulating insertion for pipeline, inventors: Ibragimov N.G., Gareev R.M., Dautov F.I., Shammasov R.M.


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