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Technical and economic optimization of well pads calculation at the stage of integrated conceptual design

Authors: A.F. Mozhchil, S.V. Tretyakov, D.E. Dmitriev, N.Z. Gilmutdinova, S.V. Esipov, A.A. Karachev (Gazpromneft NTC LLC, RF, Saint-Petersburg)

Key words: integrated conceptual design, well pad calculation, CAPEX optimization, cost engineering

At the stage of conceptual design, when engineering decisions have maximum impact on the overall project economical results, one of the key issues is to determine optimal number of well pads with regard to well drilling and platform building costs. Well pads calculation method for various field development systems is presented that consider drilling unit deadweight, well design restrictions, wells collision risk minimization and surface topographical restrictions. Calculation algorithm uses well drilling and number of pads minimization function or technical and economical optimization approach that takes into account production wells potential and cost of units.
References
1. Ismagilov R.R., Maksimov Yu.V., Ushmaev O.S. et al., Integrated model for complex management of reservoir engineering and field construction
(In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2014, no. 12, pp. 71-73.
2. Karsakov V.A., Tret'yakov S.V., Devyat'yarov S.S., Pasynkov A.G., Drilling cost
optimization during conceptual project phase of field development
(In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2013, no. 12, pp. 33-35.
3. Kharlamov K.N., Sheshukova G.N., Kushmanov P.V., Features of profiling of
horizontal and multihole wells boreholes at the automated design of their well
heads clustering schemes (In Russ.), Neftyanoe khozyaystvo = Oil Industry,
2006, no. 4, pp. 30-32.
4. Amorin R., Broni-Bediako E., Application of minimum curvature method
to wellpath calculations, Res. J. Appl. Sci. Eng. and Tech., 2010, no. 2(7),
pp. 679-686.
5. Khasanov M.M., Sugaipov D.A., Ushmaev O.S., Development of cost engineering in Gazprom Neft JSC (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2013, no. 12, pp. 14-16.
6. Khasanov M.M., Sugaipov D.A., Zhagrin A.V. et al., Improvement of CAPEX estimation accuracy during early project stages (In Russ.), Neftyanoe
khozyaystvo = Oil Industry, 2014, no. 12, pp. 22-27.

Key words: integrated conceptual design, well pad calculation, CAPEX optimization, cost engineering

At the stage of conceptual design, when engineering decisions have maximum impact on the overall project economical results, one of the key issues is to determine optimal number of well pads with regard to well drilling and platform building costs. Well pads calculation method for various field development systems is presented that consider drilling unit deadweight, well design restrictions, wells collision risk minimization and surface topographical restrictions. Calculation algorithm uses well drilling and number of pads minimization function or technical and economical optimization approach that takes into account production wells potential and cost of units.
References
1. Ismagilov R.R., Maksimov Yu.V., Ushmaev O.S. et al., Integrated model for complex management of reservoir engineering and field construction
(In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2014, no. 12, pp. 71-73.
2. Karsakov V.A., Tret'yakov S.V., Devyat'yarov S.S., Pasynkov A.G., Drilling cost
optimization during conceptual project phase of field development
(In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2013, no. 12, pp. 33-35.
3. Kharlamov K.N., Sheshukova G.N., Kushmanov P.V., Features of profiling of
horizontal and multihole wells boreholes at the automated design of their well
heads clustering schemes (In Russ.), Neftyanoe khozyaystvo = Oil Industry,
2006, no. 4, pp. 30-32.
4. Amorin R., Broni-Bediako E., Application of minimum curvature method
to wellpath calculations, Res. J. Appl. Sci. Eng. and Tech., 2010, no. 2(7),
pp. 679-686.
5. Khasanov M.M., Sugaipov D.A., Ushmaev O.S., Development of cost engineering in Gazprom Neft JSC (In Russ.), Neftyanoe khozyaystvo = Oil Industry, 2013, no. 12, pp. 14-16.
6. Khasanov M.M., Sugaipov D.A., Zhagrin A.V. et al., Improvement of CAPEX estimation accuracy during early project stages (In Russ.), Neftyanoe
khozyaystvo = Oil Industry, 2014, no. 12, pp. 22-27.


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