Neftyanaya Provintsiya
electronic peer-reviewed scholarly publication
Neftyanaya provintsiya No. 2(34), 2023

Development of equipment and technology for deflection wedge retrieval from wellbore

А.L. Nasyrov, А.А. Mukhametshin
DOI: https://doi.org/10.25689/NP.2023.2.227-241

Abstract


One of the most important process operations during construction of multilateral and multihole wells is retrieval of deflection wedge from the wellbore once sidetracking operations have been terminated to provide access to the main bore to continue construction of new lateral holes or allow for the passage of produced fluids through the existing one. Various devices are used for wedge gripping and retrieval. These are bell sockets, overshot tools, fishing hooks (remover tools). Foreign and Russian service companies engaged in manufacturing and application of retrievable deflection wedges develop proprietary remover designs that are mainly used in wells with casing diameter of 245 mm and larger. To improve wedge retrieval process TatNIPIneft Institute has proposed, developed and launched commercial production of wedge remover tools that enable sending a gripping signal to a drilling operator, reliably attach and press the wedge head against the remover body and safely pull the wedge out of the hole. Case studies of wedge remover applications are provided.

Key words:

remover tool, fishing hook, bell socket, retrievable deflection wedge, selection, anchor, drilled cuttings, swarf, multilateral well, multihole well, sidetrack

References

1. Kharkov V.A. Kapitalnyi remont neftyanykh i gazovykh skvazhin [Workover of oil and gas wells]. Moscow: Gostoptekhizdat, 1958. 147 P. (in Russian)

2. Shafigullin R.I., Vakula A.Ya., Mukhametshin A.A., Nasyrov A.L., Akhmadishin F.F. Stroitelstvo mnogostvolny skvazhiny na dva gorizonta na shegurchinskom mestorozhdenii PAO Tatneft [Construction of dual-layer multilateral well in Shegurchinskoye field of Tatneft PJSC]. Neftyanaya Provintsiya [Oil Province], 2018, No. 7, pp. 15-17. (in Russian)

3. Mukhametshin A.A., Akhmadishin F.F., Nasyrov A.L. Patent RU2713276, Int. Cl. Е21В 31/20 (2006.01). Ustroystvo dlya izvlecheniya klina-otklonitelya iz skvazhiny [A tool for deflection wedge retrieval from wellbore]. No. 2019130821: appl. 30 September 2019: publ. 04 February 2020. 24 P. (in Russian)

4. Mukhametshin A.A., Akhmadishin F.F., Nasyrov A.L. Patent RU2732779, Int. Cl. Е21В 31/00 (2006.01), Е21В 31/12 (2020.05), Е21В 31/20 (2020.05). Ustrojstvo dlya izvlecheniya klina-otklonitelya iz gorizontalnogo uchastka skvazhiny [A tool for deflection wedge retrieval from horizontal well section]. No. 2020117663: appl. 28 May 2020: publ. 22 September 2020. 17 P. (in Russian)

5. Mukhametshin A.A., Nasyrov A.L., Akhmadishin F.F., Timkin N.Ya., Arslangaliev I.G., Garaev N.A. Vosstanovlenie skvazhiny s primeneniem izvlekaemogo klina-otklonitelya [Well rehabilitation using retrievable deflection wedge]. Collection of research papers of TatNIPIneft Institute – PJSC TATNEFT. Мoscow: Neftyanoe Khozaistvo [Oil Industry], 2018, Vol. 86, pp. 194-199. (in Russian)

Authors

A.L. Nasyrov, Research Associate, TatNIPIneft Institute-PJSC TATNEFT
32, M. Djalil st., Bugulma, 423236, Russian Federation
E-mail: nal@tatnipi.ru

А.А. Мukhametshin, PhD, Lead Research Associate, TatNIPIneft Institute-PJSC TATNEFT
32, M. Djalil st., Bugulma, 423236, Russian Federation
E-mail: maa@tatnipi.ru

For citation:

А.L. Nasyrov, А.А. Mukhametshin Razrabotka tekhniki i tekhnologii dlya izvlecheniya klin'yev-otkloniteley iz skvazhiny [Development of equipment and technology for deflection wedge retrieval from wellbore] Neftyanaya Provintsiya, No. 2(34), 2023. pp. 227-241. 

DOI https://doi.org/10.25689/NP.2023.2.227-241. EDN THLONQ (in Russian)

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