METHOD FOR DEPLOYING INTEGRATED COMPLETION CASE IN ONE RIDE AND COMPLETION SYSTEM Russian patent published in 2023 - IPC E21B43/10 E21B34/16 

FIELD: well completion systems.

SUBSTANCE: group of inventions relates to a method for deploying an integral well completion string in one run and to a single-run well completion system. The method for deploying an integrated well completion string in one run includes the steps of: lowering the integral well completion string into the well as an integral unit; blocking the flow of fluid radially outward through the self-contained filter from the internal passage of the integral completion string into the annulus formed between the integral completion string and the wellbore when the integral completion string is lowered into the well; and providing bi-directional radial fluid flow through the self-contained screen after running the integral completion string into the well. The integral completion string comprises a surface-controlled downhole safety valve (SCSSV) configured to block the uncontrolled flow of fluid within the internal passage up it, a production packer configured to fix the integral completion string by its installation in the cased part of the wellbore and located downhole relative to the SCSSV located uphole relative to the production packer, a self-contained filter located downhole relative to the production packer, and a flush shoe located downhole relative to the autonomous filter and configured to provide fluid flow from the internal passage of the integral completion string into the annular space, with the possibility of blocking the flow of fluid from the annular space into the internal passage of the integral completion string, as well as with the possibility of sealing the internal passage of the integral completion string with the possibility of creating or increasing pressure inside the internal passage of the integral completion string for installation operational packer.

EFFECT: eliminating the need to run additional tools, reducing the time of work in the well to complete it.

8 cl, 7 dwg