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Construction of a multilateral well in Shegurchinskoye field of Tatneft PJSC

UDK: 622.24.085.22
DOI: 10.24887/0028-2448-2018-7-15-17
Key words: multilateral well, sidetrack, retrievable whipstock, cutters, liner
Authors: R.I. Shafigullin (Tatneft PJSC, RF, Almetyevsk), A.Ya. Vakula (Tatneft PJSC, RF, Almetyevsk), A.A. Mukhametshin (TatNIPIneft, RF, Bugulma), A.L. Nasyrov (TatNIPIneft, RF, Bugulma), F.F. Akhmadishin (TatNIPIneft, RF, Bugulma)

The paper discusses construction of a multilateral well in two horizons (Vereiskian and Kizelovskian) using a retrievable whipstock and a specialized remover as an alternative to drilling two horizontal wells. Multilateral technology is particularly required for green small fields with non-uniform permeable reservoirs since their development with vertical wells is uneconomical. As for the mature fields, development of secondary targets using multilateral technology is equal to a new field discovery with developed infrastructure.

Ready-to-use equipment can be shipped by any mode of transportation. OI-168 whipstock is assembled at the wellhead by cross-threading and is connected to a cutters assembly. Window cutting is performed in one trip. There is possibility to drill a sidetrack pilot section with a window-cutters assembly. The tools easily passed through the window during sidetrack drilling, casing and conditioning. A specialized remover tool was used for whipstock pulling. OI-168 whipstock can be pulled out of hole as a unit, without any parts left for drilling out.

Once the well was drilled, a dual-completion system was installed and the well was put on stream at initial flow rate of 9.43 t/d, with 5% watercut and 50Г—50 % distribution of production from the horizons. Application of this equipment during construction of 16070g dual well in the Shegurchinskoye field proved viability of methods and technology developed by TatNIPIneft Institute for drilling multilateral wells with 186-mm and 146-mm casing strings.

References

1. Khakimzyanov I.N. et al., Nauka i praktika primeneniya razvetvlennykh i mnogozaboynykh skvazhin pri razrabotke neftyanykh mestorozhdeniy (Science and practice of using branched and multi-hole wells in the oil field development): edited by Khisamov R.S., Kazan': FEN Publ., 2011, 319 p.

2. Mukhametshin A.A., Zarubezhnyy i otechestvennyy opyt bureniya mnogostvol'nykh skvazhin s sozdaniem germetichnogo soedineniya stvolov (Foreign and domestic experience in multi-barrel wells drilling with the creation of a hermetic joint of wellbores), Proceedings of TatNIPIneft'/PAO “Tatneft'”, 2015, V. 83, pp. 201–206.

3. Mukhametshin A.A., Tekhnika i tekhnologiya stroitel'stva mnogostvol'nykh skvazhin (Technique and technology of construction of multilateral wells), Collected papers “Innovatsionnoe neftegazovoe oborudovanie: problemy i resheniya” (Innovative oil and gas equipment: problems and solutions), Proceedings of All-Russian Scientific and Practical Conference, Ufa: Publ. of USPTU, 2014, pp. 9–13.

4. Mukhametshin A.A., Ilalov R.Kh., Nasyrov A.L., Razrabotka oborudovaniya dlya stroitel'stva mnogostvol'nykh skvazhin s sokhraneniem prokhodnogo secheniya osnovnogo stvola (Development of equipment for the construction of multilateral wells with maintaining the flow area of the original hole), Proceedings of TatNIPIneft'/PAO “Tatneft'”, 2015, V. 83, pp. 83, pp. 194–200.

5. Patent no. 2636608 RF, MPK E 21 V 7/08, 43/10, 33/10, Method for construction of additional well bore of multi-lateral well and device for its implementation, Inventors: Akhmadishin F.F., Mukhametshin A.A., Nasyrov A.L.

6. Patent no. 2414580 RF, MPK E 21 B 7/08, Retractable deflector, Inventors: Zaynullin A.G., Khisamov R.S., Nuriev I.A., Ilalov R.Kh., Mukhametshin A.A., Sabirov M.G., Petlin Yu.I., Malyshev S.G.

7. Patent no. 2415250 RF, MPK E 21 V 31/20, Device for extracting wedge-deflector from well, Inventors: Zaynullin A.G., Nuriev I.A., Polenok P.V., Sabirov M.G., Mukhametshin A.A., Ilalov R.Kh., Petlin Yu.I., Malyshev S.G.

8. Patent no. 2483187 RF, MPK E21V 23/03, Guiding device for introduction of shank to side shaft, Inventors: Zaynullin A.G., Mukhametshin A.A., Ilalov R.Kh., Sabirov M.G., Romanov B.M., Garaev N.A.В  В В 

The paper discusses construction of a multilateral well in two horizons (Vereiskian and Kizelovskian) using a retrievable whipstock and a specialized remover as an alternative to drilling two horizontal wells. Multilateral technology is particularly required for green small fields with non-uniform permeable reservoirs since their development with vertical wells is uneconomical. As for the mature fields, development of secondary targets using multilateral technology is equal to a new field discovery with developed infrastructure.

Ready-to-use equipment can be shipped by any mode of transportation. OI-168 whipstock is assembled at the wellhead by cross-threading and is connected to a cutters assembly. Window cutting is performed in one trip. There is possibility to drill a sidetrack pilot section with a window-cutters assembly. The tools easily passed through the window during sidetrack drilling, casing and conditioning. A specialized remover tool was used for whipstock pulling. OI-168 whipstock can be pulled out of hole as a unit, without any parts left for drilling out.

Once the well was drilled, a dual-completion system was installed and the well was put on stream at initial flow rate of 9.43 t/d, with 5% watercut and 50Г—50 % distribution of production from the horizons. Application of this equipment during construction of 16070g dual well in the Shegurchinskoye field proved viability of methods and technology developed by TatNIPIneft Institute for drilling multilateral wells with 186-mm and 146-mm casing strings.

References

1. Khakimzyanov I.N. et al., Nauka i praktika primeneniya razvetvlennykh i mnogozaboynykh skvazhin pri razrabotke neftyanykh mestorozhdeniy (Science and practice of using branched and multi-hole wells in the oil field development): edited by Khisamov R.S., Kazan': FEN Publ., 2011, 319 p.

2. Mukhametshin A.A., Zarubezhnyy i otechestvennyy opyt bureniya mnogostvol'nykh skvazhin s sozdaniem germetichnogo soedineniya stvolov (Foreign and domestic experience in multi-barrel wells drilling with the creation of a hermetic joint of wellbores), Proceedings of TatNIPIneft'/PAO “Tatneft'”, 2015, V. 83, pp. 201–206.

3. Mukhametshin A.A., Tekhnika i tekhnologiya stroitel'stva mnogostvol'nykh skvazhin (Technique and technology of construction of multilateral wells), Collected papers “Innovatsionnoe neftegazovoe oborudovanie: problemy i resheniya” (Innovative oil and gas equipment: problems and solutions), Proceedings of All-Russian Scientific and Practical Conference, Ufa: Publ. of USPTU, 2014, pp. 9–13.

4. Mukhametshin A.A., Ilalov R.Kh., Nasyrov A.L., Razrabotka oborudovaniya dlya stroitel'stva mnogostvol'nykh skvazhin s sokhraneniem prokhodnogo secheniya osnovnogo stvola (Development of equipment for the construction of multilateral wells with maintaining the flow area of the original hole), Proceedings of TatNIPIneft'/PAO “Tatneft'”, 2015, V. 83, pp. 83, pp. 194–200.

5. Patent no. 2636608 RF, MPK E 21 V 7/08, 43/10, 33/10, Method for construction of additional well bore of multi-lateral well and device for its implementation, Inventors: Akhmadishin F.F., Mukhametshin A.A., Nasyrov A.L.

6. Patent no. 2414580 RF, MPK E 21 B 7/08, Retractable deflector, Inventors: Zaynullin A.G., Khisamov R.S., Nuriev I.A., Ilalov R.Kh., Mukhametshin A.A., Sabirov M.G., Petlin Yu.I., Malyshev S.G.

7. Patent no. 2415250 RF, MPK E 21 V 31/20, Device for extracting wedge-deflector from well, Inventors: Zaynullin A.G., Nuriev I.A., Polenok P.V., Sabirov M.G., Mukhametshin A.A., Ilalov R.Kh., Petlin Yu.I., Malyshev S.G.

8. Patent no. 2483187 RF, MPK E21V 23/03, Guiding device for introduction of shank to side shaft, Inventors: Zaynullin A.G., Mukhametshin A.A., Ilalov R.Kh., Sabirov M.G., Romanov B.M., Garaev N.A.В  В В 



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