**Key words:** optimal well pattern selection, multiobjective optimization, conceptual oilfield development, models hierarchy.

References

1. Butler R., Horizontal wells for the recovery of oil, gas and bitumen, Petroleum Society Monograph, 1992, no. 2.

2. Willhite P.G., Waterflooding, SPE Textbook, 1986, no. 3.

3. Khasanov M.M., Ushmaev O.S., Nekhaev S.A., Karamutdinova D.M.,

The optimal parameters of oil field development (In Russ.), SPE 162089, 2012.

4. Bellout M.C., Echeverría Ciaurri D., Durlofsky L.J. et al., Joint optimization of oil well placement and controls, Computational Geosciences, 2012, no. 16(4), pp. 1061–1079.

5. Isebor O.J., Durlofsky L.J., Echeverría Ciaurri D., A derivative-free methodology with local and global search for the constrained joint optimization of well locations and controls, Computational Geosciences, 2013, pp. 1–20.

6. Isebor O.J., Durlofsky L.J., Echeverría Ciaurri D., Generalized field development optimization using derivative-free procedures, SPE Journal, 2014, pp. 1–18.

7. Recham R., Bencherif D., Investigation of optimum well spacing based on

a combined simulation and economic models, Canadian International Petroleum Conference, 2003.

8. Roberts T., Economics of well spacing, SPE 240, 1961.

9. Tokunaga H. A, Hise B.R., Method to determine optimum well spacing,

SPE 1673, 1966.

10. Fletcher R., Leyffer S., Nonlinear programming without a penalty function, Mathematical Programming, 2002, no. 91(2), pp. 239–269.

11. Echeverría Ciaurri D., Isebor O.J., Durlofsky L.J., Application of derivativefree methodologies to generally con-strained oil production optimisation problems, International journal of mathematical modelling and numerical optimization, 2011, no. 2(2), pp. 134–161.

12. Audet C., Dennis J.E Jr., Analysis of generalized pattern searches, SIAM

Journal on Optimization, 2002, no. 13(3), pp. 889–903.

13. Torczon V., On the convergence of pattern search algorithms, SIAM Journal on Optimization, 1997, no. 7(1), pp. 1–25.

14. Audet C., Dennis J.E. Jr., Mesh adaptive direct search algorithms for constrained optimization, SIAM Journal on Optimization, 2002, no. 17(1),

pp. 188–217.

15. Brouwer D.R., Jansen J.D., Dynamic optimization of waterflooding with

smart wells using optimal control theory, SPE Journal, 2004, no. 9(4),

pp. 391–402.

**Key words:** optimal well pattern selection, multiobjective optimization, conceptual oilfield development, models hierarchy.

References

1. Butler R., Horizontal wells for the recovery of oil, gas and bitumen, Petroleum Society Monograph, 1992, no. 2.

2. Willhite P.G., Waterflooding, SPE Textbook, 1986, no. 3.

3. Khasanov M.M., Ushmaev O.S., Nekhaev S.A., Karamutdinova D.M.,

The optimal parameters of oil field development (In Russ.), SPE 162089, 2012.

4. Bellout M.C., Echeverría Ciaurri D., Durlofsky L.J. et al., Joint optimization of oil well placement and controls, Computational Geosciences, 2012, no. 16(4), pp. 1061–1079.

5. Isebor O.J., Durlofsky L.J., Echeverría Ciaurri D., A derivative-free methodology with local and global search for the constrained joint optimization of well locations and controls, Computational Geosciences, 2013, pp. 1–20.

6. Isebor O.J., Durlofsky L.J., Echeverría Ciaurri D., Generalized field development optimization using derivative-free procedures, SPE Journal, 2014, pp. 1–18.

7. Recham R., Bencherif D., Investigation of optimum well spacing based on

a combined simulation and economic models, Canadian International Petroleum Conference, 2003.

8. Roberts T., Economics of well spacing, SPE 240, 1961.

9. Tokunaga H. A, Hise B.R., Method to determine optimum well spacing,

SPE 1673, 1966.

10. Fletcher R., Leyffer S., Nonlinear programming without a penalty function, Mathematical Programming, 2002, no. 91(2), pp. 239–269.

11. Echeverría Ciaurri D., Isebor O.J., Durlofsky L.J., Application of derivativefree methodologies to generally con-strained oil production optimisation problems, International journal of mathematical modelling and numerical optimization, 2011, no. 2(2), pp. 134–161.

12. Audet C., Dennis J.E Jr., Analysis of generalized pattern searches, SIAM

Journal on Optimization, 2002, no. 13(3), pp. 889–903.

13. Torczon V., On the convergence of pattern search algorithms, SIAM Journal on Optimization, 1997, no. 7(1), pp. 1–25.

14. Audet C., Dennis J.E. Jr., Mesh adaptive direct search algorithms for constrained optimization, SIAM Journal on Optimization, 2002, no. 17(1),

pp. 188–217.

15. Brouwer D.R., Jansen J.D., Dynamic optimization of waterflooding with

smart wells using optimal control theory, SPE Journal, 2004, no. 9(4),

pp. 391–402.