А.L. Nasyrov, А.А. Mukhametshin, R.R. Saitbatalov, А.F. Garaeva
DOI: https://doi.org/10.25689/NP.2023.2.150-164
Abstract
The paper presents a comparative analysis of equipment and technologies provided by Russian and foreign service companies for milling the casing exit and drilling sidetrack holes out of parent wellbore. The major disadvantages of existing deflection wedges, milling cutters and drilling equipment, particularly large diameter and rigidity drill pipes, are identified. Heavy-wall 89 mm drill pipes (TBT-89) installed above the milling assembly do not enable deflection of the latter in the direction of wedge groove, thus resulting in cutting through wedge body rather than casing wall. Pieces of casing and debris accumulated in the lower portion of casing window do not allow to continue milling operation. To improve casing exit process performance, it is necessary that smaller diameter and smaller rigidity drill pipes be used. Recommendations are provided for wedge and cutter design improvements to increase the performance of sidetracking operations, eliminate emergencies and reduce the overall tripping time.
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
R.R. Saitbatalov, 1st year Mater Student, Almetyevsk State Oil Institute (AGNI)
2, Lenin st., Almetyevsk, 423462, Russian Federation
E-mail: ramil4952000@bk.ru
А.F. Garaeva, 2nd year Mater Student, Almetyevsk State Oil Institute (AGNI)
2, Lenin st., Almetyevsk, 423462, Russian Federation
E-mail: garaevaaa99@gmail.com
For citation:
А.L. Nasyrov, А.А. Mukhametshin, R.R. Saitbatalov, А.F. Garaeva Analiz promyslovogo opyta po zarezke bokovykh stvolov s primeneniyem oborudovaniya razlichnykh ser-visnykh kompaniy na ob"yektakh PAO «Tatneft'» [Analysis of sidetracking experience at tatneft’s fields using equipment of different service companies] Neftyanaya Provintsiya, No. 2(34), 2023. pp. 150-164. DOI https://doi.org/10.25689/NP.2023.2.150-164.