METHOD AND SYSTEM FOR COMPLETION OF MULTILATERAL INTELLIGENT WELL Russian patent published in 2024 - IPC E21B43/14 

FIELD: oil, gas and coke-chemical industry.

SUBSTANCE: invention relates to oil industry. In particular, a method of well completion is disclosed, which includes: deployment of equipment for lower completion in lower offshoot and in the lower section of the main borehole, from which the lower side borehole of the well extends; lowering into the well of an intermediate completion having equipment for continuous downhole monitoring and control of the flow rate for the lower side hole of the well and the main wellbore, which engages with the equipment for the lower completion; drilling of the upper side hole of the well; completion of the upper sidetrack of the well; use of an upper multi-barrel interface to provide fluid communication of the upper side borehole with the main borehole of the well; and setting the upper completion by moving the upper completion down the wellbore and engaging it with an intermediate completion to enable transmission of signals between the upper completion and the intermediate completion. Deployment of equipment for lower completion comprises deployment of a first packer located in the main wellbore under the lower sidetrack of the well, and a second packer located in the main wellbore above the lower offshoot. At least a section of the main borehole of the well passes below at least a section of the lower side borehole of the well.

EFFECT: invention can be used in multilateral production wells.

14 cl, 2 dwg