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Electromagnetic Interval Control Valve (E-Valve)

IP.com Disclosure Number: IPCOM000241077D
Publication Date: 2015-Mar-25
Document File: 4 page(s) / 528K

Publishing Venue

The IP.com Prior Art Database

Abstract

This invention provides an Electromagnetic Interval control valve (ICV). The valve consists of five major components: housing, outer sleeve, inner sleeve, electromagnetic coils, permanent magnets. It works based on the principle of electromagnetism, where coils are energized in order to attract or repel the permanent magnet on the inner sleeve which actuates the valve open and close. These valves can be controlled with the help of single TEC (tubing encased conductor) line and this will eliminate the purpose of many hydraulic control lines running down hole.

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                                Electromagnetic Interval Control Valve (E-Valve)

Abstract:

This invention provides an Electromagnetic Interval control valve (ICV). The valve consists of five major components: housing, outer sleeve, inner sleeve, electromagnetic coils, permanent magnets. It works based on the principle of electromagnetism, where coils are energized in order to attract or repel the permanent magnet on the inner sleeve which actuates the valve open and close. These valves can be controlled with the help of single TEC (tubing encased conductor) line and this will eliminate the purpose of many hydraulic control lines running down hole.

Background:

An intelligent well (aka smart well) optimizes well, production, and reservoir management processes by enabling the operator to remotely monitor and control well inflow or injection down hole at the reservoir, without mechanical intervention. One of the key tools in performing the inflow control is interval control valves (ICVs). The mechanical actuation of ICV is based on the application of hydraulic pressure through dedicated hydraulic control lines for valve actuation that run from the surface to down hole where tool is located. These hydraulic control lines can cost up to 40% on the total cost of entire smart well completion system. Furthermore, if well has more zones and valves, then number of hydraulic control lines will increase, which will subsequently increase the overall cost of the system.

Description of the invention:

The proposed valve consists of five major components; housing (1), outer sleeve (2), inner sleeve (5), electromagnetic coils (3a) (3b) (3c) (3d), Permanent magnets (4) as shown in the following figure 1. The permanent magnets (4) are spaced apart by a predetermined distance and they are placed on the inner sleeve (5) of the valve assembly. Inner sleeve (5) is concealed by the outer sleeve (2) in which the electromagnetic coils (3a) (3b) (3c) (3d) are wound. The housing (1) and the electromagnetic coils (3a) (3b) (3c) (3d) are sealed on both sides to avoid the entry of well bore fluid. The inner sleeve (5) is linearly movable between an open and close position. The electromagnetic coils (3a) (3b) (3c) (3d) are connected to controller in front of the valve assembly.  Controller will be connected through the TEC line from the surface. Controller interprets frequency signal from the surface and energize the coils accordingly.

                                                     

Figure 1: Electromagnetic Valve in closed position

E-valve will run down hole in a closed position, Figure...