METHOD AND COMPUTER SYSTEM FOR DESIGNING LOCATION OF CLUSTER SITES IN DEPOSITS Russian patent published in 2019 - IPC E21B43/30 G06F17/50 

FIELD: mining.

SUBSTANCE: group of inventions relates to the field of designing and developing deposits, including hydrocarbon deposits. According to the method, areas of possible location of collar of well of the projected wells are determined relative to their faces on the basis of initial data including coordinates of boreholes and technical constraints on well design. Boreholes are ranked by the number of intersections of the area of possible location of the collar of each well with areas of possible location of collar of well of other wells - from the worst, characterized by the least number of intersections, to the best, characterized by the greatest number of intersections. For boreholes with a rank provided with an equal number of intersections, they are additionally ranked by the total area of intersections from the least to the largest. Forming a primary design of location of cluster sites by merging groups of wells into cluster sites based on the results of ranging of boreholes. First cluster site includes a well with the worst ranking rank, as well as wells, areas of possible location of mouths of which cross area of possible location of collar of well with worst rank. Each next cluster pad is formed similarly from wells with ranged faces that are not included in previously formed cluster sites. Values of the target value for each cluster site are determined. Optimized previously formed design of arrangement of cluster sites using cyclic repetition of successive steps of global and local optimizations to achieve a predetermined parameter of convergence of calculation results of arrangement of cluster sites. Design of location of formed cluster sites with coordinates of collars of well and centres of cluster sites and assigned values of target index based on optimization results is displayed on topographic map. Method operations involve the method of unconditional optimization of a function of several variables.

EFFECT: technical result is higher efficiency of arrangement of cluster wells.

12 cl, 14 dwg