The history of formation and modern advances in the area of technology of completion of multilateral horizontal and horizontal wells in the fields of LUKOIL-Western Siberia OOO is presented. By mid-2016 more than 40 horizontal wells were drilled with use of depression equipment, more than 70 wells - on the lightweight drilling fluids with density of 920-1040 kg/m3, more than 150 multilateral wells are put into operation. The experience of the construction of horizontal wells with carrying out 10-15-stage fracturing is considered. Such multilateral wells completion methods are described as the inclusion of an oil-swellable packers, separating lateral outlets, to the tail filter packaging arrangement; application of active circulation valves and swellable packers combined with the bypass system for downhole pumping equipment in packaging arrangement; carrying out multistage fracturing. Currently these variants of multilateral wells completion are introduced on a small scale, but their use is planned to expand in prospect. It was noted that the development of multilateral wells completion technologies is a significant focus area in the area of increase of efficiency of LUKOIL-Western Siberia OOO fields digging. For large-scale realization of the presented solutions it is necessary to test and implement of national technical means in order to increase the investment attractiveness of projects on production of hard-to-recover hydrocarbon reserves.
References
1. Bakirov D.L., Fattakhov M.M., Mnogozaboynye skvazhiny:
prakticheskiy opyt Zapadnoy Sibiri (Multilateral wells: practical
experience of Western Siberia), Tyumen': Tyumenskiy
dom pechati Publ., 2015, 232 p.
2. Bakirov D.L., Fattakhov M.M., Akhmetshin I.K. et al., Planning
and construction of extended-reach multilateral wells
(In Russ.), Geologiya, geofizika i razrabotka neftyanykh i
gazovykh mestorozhdeniy, 2015, no. 9, pp. 41–50.
