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.
References
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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)