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

Validation the lengths of the wellbores for multistage fracturing well 

V.F. Pyzykov, S.K. Sоhоshko


Currently, horizontal wells with multi-wellbores and multi-holes are becoming widespread. At the same time, there are problems associated with determining the lengths of such wells. The article considers the well, which exploits two formation. The well has two horizontal wellbores, one of them with the multistage fracturing and the other has liner-filter. The construction of the well does not have packer for independent production recovery from the two formation. We have a question of how to achieve proportional fluid recovery, which, in turn, puts the task of determining the lengths of the wellbores, the number of fractures and parameters of fractures. An equation relating the parameters of both wellbores it is obtained from the condition of equality production rates of resources of both wellbores. By varying the lengths of the wellbores, the number of fractures it is possible to achieve equality the rates of recovery current reserves in the drainage zones of both layers. The article gives the methods of calculating the specified parameters of the wellbores on the example of a specific well.  

Key words:

horizontal dual-wellbores well, proportional fluid recovery, multistage fracturing, liner-filter, the rates of recovery oil, Kogalymskoe oilfield


1. Bakirov D.L. Method of multilateral well construction // Patents of invention / D.L. Bakirov, M.M. Fattahov // RU 2650161 C2, Abstract of invention: Bull. № 10. 09.04.2018. (in Russian)

2. Elkin S.V. Experience of express-valuation the flowrate of horizontal wells with multizone hydraulic fracturing / S.V. Elkin, A.A. Aleroev, N.A. Veremko, M.V. Chertenkov // Engineering practice, 2016, Issue 12, P. 70–79. (in Russian)

3. Telkov V.P. An improved model that is applied to calculate a productivity subjected to a multizone hydraulic fracturing of a formation / V.P. Telkov, D.S. Kruglov // Oilfield engineering, 2017, Issue 11, P. 28-36. (in Russian)

4. Songgen H. Optimization of Staged-Fracturing in Heterogeneous Tight Gas Reservoirs of Western-Sichuan Gas Field / Songgen He, Yan Deng, Jianchun Guo // SPE 176145, 2015.

5. Elkin S.V. Consideration of the impact of fractures deviation from their perpendicular position to a horizontal well on the liquid flow rate following a multi-stage hydraulic / S.V. Elkin, A.A. Aleroev, N.A. Veremko, M.V. Chertenkov // Oilfield engineering, 2016, Issue 10, P. 37–42. (in Russian)

6. Elkin S.V. Flowrate calculation model for fractured horizontal well depending on frac stages number / S.V. Elkin, A.A. Aleroev, N.A. Veremko, M.V. Chertenkov // Engineering practice, 2016, Issue 7, P. 82–88. (in Russian)

7. Vakhrushev V.V. Assessment of various methods applicability for calculation of a horizontal well flow-rate in conditions of low and high performable reservoirs / V.V. Vakhrushev, V.N. Melnikov, S.A. Moskvitin, D.A. Kutelnikova // Oilfield engineering, 2019, Issue 9, P. 52-58. (in Russian)

8. Nasybullin A.V. Controlling over the model of liquid stable inflow towards a horizontal well and a crack of endless conductivity / A.V. Nasybullin, A.V. Lifantiev, V.V. Vasiliev, A.N. Astahova // Automation, telemechanization, and communication in oil industry, 2014, Issue 6, P. 27-32. (in Russian)

9. Joshi S.D. Augmentation of well productivity with slant and horizontal wells / S.D. Joshi // 1988, Issue 40, P. 729-739. (in English)

10. Malyshev I.O. Justification of the productivity of horizontal wells taking into account their trajectory / I.O. Malyshev, M.L. Karnauhov // Journal of mountain, 2006, Issue 9, P. 72-79. (in Russian)

11. Fedotov I.B. А method of analytic prediction of horizontal wells flow-rates of hydrocarbon fields located in low-permeable formations-collectors on the example of V.N. Vinogradov field / I.B. Fedotov, O.Yu. Kashnikov, I.A. Kibalenko, O.N. Shevchenko // Geology, geophysics and development of oil and gas fields // 2018, Issue 4, P. 32-39. (in Russian)

12. Voevodkin V.L. New Technologies in LUKOIL: from Simple to Complicated / V.L. Voevodkin, M.V. Chertenkov // Oil-industry, 2019, Issue 8, P. 62-66. (in Russian)


V.F. Pyzykov, engineer, LLC «LUKOIL-Engineering»
19, Central st., Kogalym, 628481, Russian Federation

S.K. Sohoshko, Doctor of Technical Sciences, Professor, Tyumen Industrial University, Department of development and operation of Oil and Gas Fields
70, Melnikaite st., Tyumen, 625000, Russian Federation

For citation:

V.F. Pyzykov, S.K. Sоhоshko Obosnovaniye dlin stvolov dvustvol'noy skvazhiny s mnogostadiynym gidravlicheskim razryvom plasta [Validation the lengths of the wellbores for multistage fracturing well]. Neftyanaya Provintsiya, No. 2(34), 2023. pp. 116-129. DOI EDN LKOXFE (in Russian)

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