Actuators and related methods

Abstract

Various embodiments of the present invention disclose enhanced and improved well production tools for increasing the stability of production zones in a wellbore. Various embodiments of the present invention generally relate to apparatuses, systems, and processes for efficiently and effectively isolating zones within a wellbore.

Description

RELATED APPLICATIONS[0001]This application claims priority to U.S. Provisional Patent Application 61 / 172,676 filed on Apr. 24, 2009, which is specifically incorporated by reference in its entirety herein without disclaimer. This application is further related to a copending application titled NEW AND IMPROVED FRACTURE VALVE TOOLS AND RELATED METHODS and a copending application titled NEW AND IMPROVED BLAPPER VALVE TOOLS AND RELATED METHODS, both filed this same day.FIELD OF THE INVENTION[0002]The present invention relates to, a method for treating oil and gas wells. More specifically, various embodiments of the present invention provide novel and non-obvious apparatuses, systems, and processes for enhanced production of hydrocarbon streams. More specifically, various embodiments of the present invention generally relate to apparatuses, systems, and processes for efficiently and effectively isolating zones within a wellbore.BACKGROUND OF THE INVENTION[0003]Hydrocarbon fluids such as ...

AI Technical Summary

Benefits of technology

[0028]The present invention provides a method, system, and apparatus for perforating and stimulating multiple formation intervals, which allows each single zone to be treated with an individual treatment stage while eliminating or minimizing the problems that are associated with existing coiled tubing or jointed tubing stimulation methods and hence providing significant economic and technical benefit over existing methods.

[0032]Another embodiment of the present invention is a production string comprising a fracture valve tool for running with a production string comprising at least one production tubing, said fracture valve tool comprising a mandrel defining a through passage smaller than that of said production tubing; a rotary valve; and a valve actuator; wherein said mandrel comprises at least a first mandrel port extending from an exterior surface of said mandrel to an interior surface of said mandrel; and wherein there is a rotating sleeve rotatably positioned on said mandrel, said rotating sleeve comprising at least one sleeve port, wherein said rotating ported sleeve rotates between at least a first position wherein said at least one sleeve port does not align with the at least one mandrel port and a second position wherein said at least one sleeve port is at least partially aligned with said at least one mandrel port whereby communication from said exterior surface of said mandrel to said interior surface of said mandrel is possible.

Problems solved by technology

Some of the reduced performance can be attributed to cross flow between zones and other interference phenomena.

However, the reduced performance is typically of such magnitude that all of the reduction cannot be attributable to cross flow.

In various situations, a more significant cause of production impairment is damage to the formation that takes place during the milling of the plugs.

While the use of composite versus cast iron bridge plugs has significantly reduced the time and expense required for milling, the process invariably requires circulation of fluids and managing the well bore pressures in a way that results in contamination of various production zones of the reservoir with well bore fluids, such that the effective permeability of the zones is reduced.

This is often thought of as slate damage.

A blow-out may occur if fluid loss occurs during completion activities.

However, in various embodiments, the fracture pressure will not be sufficient to break the cement.

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