НЕФТЯНАЯ ПРОВИНЦИЯ

Abstract

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In view of ever-increasing activities associated with lateral-hole and horizontal sidetrack drilling from existing wells, success rate of such operations was analyzed. This analysis enabled to reveal the cases when drilling assembly failed to pass through a window cut in the casing wall. In order to determine the main factors affecting the passability of drilling assemblies and liners through casing windows a number of casing exit technologies and tools available from foreign and Russian companies were reviewed. Graphic analytic method allowed to analyze configurations of casing windows cut using various wedge-shaped whipstocks. Wear limit of whipstock body during casing exit operations was determined. Recommendations for improvement of casing exit tools and technologies are provided to increase the success rate of sidetracking operations.

Key words:

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casing window, sidetrack, deflection surface, groove, whipstock, milling cutter, drilling tool, liner (casing string)

References

 

1. Mukhametshin А.А. Sovershenstvovanie tekhnologii zarezki bokovykh stvolov na osnove razrabotki gidromekhanicheskikh klinovykh otkloniteley [Improvements in sidetrack drilling technology based on development of hydraulic-mechanical deflecting wedges]. PhD thesis: 25.00.15, TatNIPIneft – OAO TATNEFT, Bugulma, 2009, 25 p. (in Russian)

2. Mukhametshin А.А., Maksimov D.V., Meling К.V., Ilalov R.Kh., Mukhametshin Т.А. Klassifikatsiya klinev-otkloniteley [Classification of wedge deflectors]. Ekspozitsiya Neft Gas, 2011, No. 2/Н, pp. 9-11. (in Russian)

3. US Patent 5816324А, Е21В 7/08. Whipstock accelerator ramp, Bruce D., Gregory S.; applicant and patent holder – Smith International, Inс., Houston, No. 642824; appl. 03.05.1996; publ. 06.10.1998. (in English)

4. US Patent 5894889А, Е21В 7/08. One-trip milling system, Charles H., James E., Bruce D. et al.; applicant and patent holder – Smith International, Inс., Houston, No. 08/916932; appl. 21.08.1997; publ. 20.04.1999. (in English)

5. US Patent 8453737 В2 US, Е21В 29/06. Diameter based tracking for a window milling system, Jody R, Jeffery R.; applicant and patent holder Halliburton Energy Services, Inс., Houston, TX (US) - №11/458173; appl. 18.07.2006; priority US 2008/0017378А1, 24.01.2008, publ. 04.06.2013. (in English)

6. Inventor's certificate 1470925 IPC4 Е21В 7/08. Klinovoy otklonitel’ [Wedge-shaped deflector]. Vinyarsky R.V., Ligotsky N.V., Bulatov К.V., Yeremenko V.F. (USSR). – No. 4288333/23-03; appl. 22.07.87; publ. 07.04.89, Bull. No13. (in Russian)

7. US 6302198В1 US, Е21В 7/08. One-trip milling system, Leonardo Ritorto, Dave L. Heinley; applicant and patent holder patent bureau, No. 09/450835; appl. 29.11.1999; publ. 16.10.2001. (in English)

8. RF Patent 2278239, Е21В 29/06. Sistema dlya vyrezaniya okna v obsadnoy kolonne [Casing exit system], Salomatin А.А., Ignatev D.S. et al.; applicant and patent holder OOO Burintekh, No. 2005129434/03; appl. 21.09.2005; publ. 20.06.2006, Bull. No. 17.

9. Mukhametshin А.А., Nasyrov А.Л., Timkin N.Ya., Garaev N.А. Issledovanie faktorov, vliyayushchikh na izvlechenie klina-otklonitelya iz skvazhiny [Investigating the factors effecting the retrieval of deflecting wedge from wellbore]. Collection of research papers of TatNIPIneft – PJSC TATNEFT, Naberezhye Chelny: Exspozitsiya Neft Gas, 2017, Vol. 85, pp. 314-321. (in Russian)

10. Mukhametshin А.А. Opyt primeneniya v PAO «Tatneft» izvlekaemykh klinev-otkloniteley otechestvennogo i zarubezhnogo proizvodstva. [Experience of PJSC TATNEFT in application of retrievable whipstocks manufactured in Russia and overseas], Collection of research papers of TatNIPIneft – PJSC TATNEFT, Naberezhye Chelny: Exspozitsiya Neft Gas, 2017, Vol. 85, pp. 322-332. (in Russian)

11. Shafigullin R.I., Vakula A.Ya., Mukhametshin А.А., Nasyrov А.L., Akhmadishin F.F. Stroitelstvo mnogostvolnoy skvazhiny na dva gorizonta na Shegurchinskom mestorozhdenii PAO «Tatneft» [Construction of a multilateral well on Shegurchinskoye field of PJSC TATNEFT], Neftyanoe Khozyaistvo, 2018, No. 7, pp. 15-17. (in Russian)

12. Khisamov R.S., Nuriev I.A., Zaynullin А.G., Ilalov R.Kh, Mukhametshin А.А. Izvlekaemyy otklonitel dlya stroitelstva mnogozabojnykh skvazhin [Retrievable whipstock for construction of multilateral wells]. Neftyanoe Khozaistvo, 2010, No. 2, pp. 81-83. (in Russian)

13. Mukhametshin А.А., Nasyrov А.L., Akhmadishin F.F., Timkin N.Ya., Arslangaliev I.G., Garaev N.А. Vosstanovlenie skvazhiny s primeneniem izvlekaemogo klina-otklonitelya [Well revitalization using retrievable wedge deflector]. Collection of research papers of TantNIPIneft – PJSC TATNEFT, Moscow: Neftyanoe Khozaistvo, 2018, Vol. 86, pp. 194-199.(in Russian)

14. Mukhametshin А.А., Ilalov R.Kh., Mukhametshin Т.А. Issledovanie vliyaniya velichiny otklonyayushchego ugla klina na razrushenie burilnogo instrumenta pri vyrezanii «okna» i zarezke bokovogo stvola rotornym sposobom [Study of the effects of wedge deflection angle on drilling tool damage during casing exit and rotary sidetrack drilling]. Inzhener-Neftyanik, 2012, No. 3, pp. 61-63. (in Russian)

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Authors

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A.A. Mukhametshin, PhD, Leading Research Associate, TatNIPIneft–PJSC TATNEFT

32, Musa Jalil st., Bugulma, 423236, Russian Federation

E-mail: maa@tatnipi.ru

 

A.L. Nasyrov, Research Associate TatNIPIneft–PJSC TATNEFT

32, Musa Jalil st., Bugulma, 423236, Russian Federation

E-mail: nal@tatnipi.ru

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For citation:

 

A.A. Mukhametshin, A.L. Nasyrov Opyt vyrezanija okna v obsadnoj kolonne skvazhiny pri pomoshhi klin'ev s razlichnoj konfiguraciej otklonjajushhej poverhnosti [Casing exit operations using whipstocks with Different configurations of deflection surface]. Neftyanaya Provintsiya, No. 3(23), 2020. pp.164-180. DOI https://doi.org/10.25689/NP.2020.3.164-180 (in Russian)