Optimization of Development of Oil and Gas Rims Using New Technologies

The presented novel approaches for oil and gas rims development enable the increase in hydrocarbon extraction using multilateral horizontal wells. Based on 3D static modelling results, it became possible to trace multilateral well trajectories of several types, which can enable much higher oil recovery efficiency. The important point was implementing appropriate well completion selection, which will increase the production efficiency by alignment of the inflow profile along a wellbore and isolation of undesirable water breakthrough intervals. The correct choice of inflow control devices (ICD) allows to get more uniform recovery of reserves. The proposed well completion design workflow is flexible to variable geological and technological factors and allows the ability to apply sophisticated well construction. Additional installation of the sliding sleeve for multiple hydraulic fracturing ports enables to make either acid fracturing (for carbonates) or proppant fracturing (for clastics) separately in any chosen interval. The comparative analysis of well performance showed that the performance of the designed horizontal wells in term of cumulative oil recovery is much higher versus conventional vertical wells. This enables the development of a deposit by less number of wells and ensures its economical efficiency, even despite of higher horizontal well price.