Single action, dual position, weight-down locating assembly

摘要

A locating assembly includes an inner mandrel and an outer mandrel. The outer mandrel is connected to the inner mandrel via a frangible device. The locating assembly also includes a positioning device connected to the outer mandrel. Further, the locating assembly is directly or operatively connected to a tool, and the tool is located within a wellbore. An application of a first downward force causes the positioning device to move to a first position, and, when the positioning device is in the first position, the tool is located and maintained in a first position. An application of a second downward force causes the inner mandrel to move relative to the outer mandrel into a second position, and, when the inner mandrel is in the second position, the tool is located and maintained in a second position.

主权项

1. A method of locating and maintaining a tool in a wellbore in at least two positions comprising:
causing or allowing a first downward force to be applied to at least a portion of a locating assembly, wherein the locating assembly is directly or operatively connected to the tool, and wherein the locating assembly comprises:
an inner mandrel;an outer mandrel, wherein the outer mandrel is connected to the inner mandrel via a frangible device; anda positioning device, wherein the positioning device is connected to the outer mandrel;wherein the application of the first downward force causes the positioning device to move to a first position, and wherein when the positioning device is in the first position, the tool is located and maintained in a first position; and causing or allowing a second downward force to be applied to at least a portion of the locating assembly, wherein the application of the second downward force causes the inner mandrel to move relative to the outer mandrel into a second position, and wherein when the inner mandrel is in the second position, the tool is located and maintained in a second position.