The paper presents the results of analysis of technical efficiency and economic performance of sidetrack drilling deep into the reservoir under conditions of late stages of development of productive areas of the Romashkinskoye field to target terrigenous Pashian and Bobrikovian-Radaevskian reservoirs. The interest to this problem is associated with gradual decrease in technical and economic efficiency of such operations and search for performance improvement opportunities.
Various factors that would affect efficiency of the technologies under consideration were investigated. These included geological and physical as well as geological and field conditions of particular production zones and deposits of the Romashkinskoye field. These studies enabled determination of optimal criteria for drilling target selection based on reservoir properties as well as optimize sidetracking strategies with account of specific geological and physical, and geological and field conditions.
well intervention, sidetracking, horizontal lateral, successful, unsuccessful, breakeven point, correlation index, azimuth, deviation
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Yu.A. Gutorov, Dr.Sc, Head of Research and Analysis in Fuel and Energy Complex, Regional R&D center Neftyanaya Dolina, member of RANS, Oktyabrsky, Republic of Bashkortostan, Russian Federation
L.G. Rakhmaev, Lead Specialist, Group for Geological Support of Well Construction Operations, Well Intervention Department, Geology and Technology Center NGDU Aznakaevskneft of PJSC TATNEFT, Aznakaevo, Republic of Tatarstan, Russian Federation
Yu.A. Gutorov, R.Kh. Nizaev, L.G Rakhmaev Issledovanie putej povysheniya tekhniko-ekonomicheskoj effektivnosti zarezok bokovyh stvolov NGDU «Aznakaevskneft'» [Study of the ways to improve technical and economic performance of sidetracking operations in NGDU Aznakaevskneft]. Neftyanaya Provintsiya, No. 1(21), 2020. pp. 125-145. DOI https://doi.org/10.25689/NP.2020.1.125-145 (in Russian)