Development of a packer with an activation tool for the liner extension hanger in the interval of a horizontal open well

Abstract

Hydraulic fracturing is one of the main methods for stimulating production and putting into development non-drained hydrocarbon reserves. Its natural development is the use of hydraulic fracturing in the horizontal interval of an open hole using several ports, isolated from each other by special elastomers. One of the main and important elements in multiport hydraulic fracturing technologies is a liner hanger packer in an open interval of a horizontal well. Depending on the technology used in multiport hydraulic fracturing, a large number of liner hangers of different types are distinguished. This article discusses the design and principle of operation of a packer for suspending a non-cemented liner of a multiport hydraulic fracturing assembly in an open interval of a horizontal well, as well as the design of a hydraulic activation tool for the above packer. The technical system, consisting of a packer and a hydraulic activation tool to it, makes it possible to install a multiport hydraulic fracturing liner in the well with subsequent disconnection of the drill pipes and their extraction from the well together with the hydraulic activation tool. In addition, the design of the packer allows the connection of production tubing to perform hydraulic fracturing technology in the horizontal section of the open hole. The design of the hydraulic activation tool allows it to be reused after being pulled out of the well when running other liners of multiport hydraulic fracturing.