Frac manifold isolation tool

Abstract

A frac manifold isolation tool configured to connect to a zipper spool, and comprising a mandrel that is axially movable and a hydraulic setting tool configured to move the mandrel from an open position, in which fracturing fluid is allowed to flow from a zipper spool to a connected frac tree, to a closed position, in which the mandrel and its associated cup tool direct flow.

Description

TECHNICAL FIELD[0001]The present disclosure relates generally to oil or gas wellbore equipment, and, more particularly, to a frac manifold.BACKGROUND[0002]Frac manifolds, also referred to herein as zipper manifolds, are designed to allow hydraulic fracturing operations on multiple wells using a single frac pump output source. Frac manifolds are positioned between the frac pump output and frac trees of individual wells. A frac manifold system receives fracturing fluid from the pump output and directs it to one of many frac trees. Fracturing fluid flow is controlled by operating valves to isolate output to a single tree for fracking operations.[0003]Frac zipper manifolds may be rigged up to frac trees before frac equipment arrives at the well site. Once onsite, the frac equipment need only be connected to the input of the frac manifold. Because individual frac trees do not need to be rigged up and down for each fracking stage and because the same frac equipment can be used for frackin...

AI Technical Summary

Benefits of technology

The frac manifold isolation tool uses a mandrel to control the flow of frac fluid to a wellhead or frac tree. This tool can replace or reduce the number of valves that would otherwise control fluid in the manifold, making the use of a frac manifold less expensive and more efficient. The technical effect of this tool is improved control over frac fluid flow without the need for a valve cabinet, reducing costs and making the process more efficient.

Problems solved by technology

In particular, the valves that have traditionally been used to control the flow of fracturing fluid to individual trees are expensive and greatly increase the cost of using a zipper manifold.

With multiple valves required for each frac tree, when a zipper manifold is arranged to connect to several adjacent wells, the cost of the valves can easily be several hundred thousand dollars.

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