Electric hydraulic interface for a modular downhole tool

Patent metadata

Field	Value
Publication number	US-9664004-B2
Application number	US-201013518899-A
Country	US
Kind code	B2
Filing date	Dec 22, 2010
Priority date	Dec 24, 2009
Publication date	May 30, 2017
Grant date	May 30, 2017

Abstract

A modular donwhole tool system with a single electric hydraulic drive assembly. The assembly includes an electric hydraulic interface for coupling to any of a variety of different modular donwhole tools. Such tools may include a plug setting actuator, sleeve shifting actuator, valve effecting actuator and a variety of other radially or axially driven hydraulically powered actuators. Indeed, a variety of different actuators may be combined within the same system, tailored based on given downhole application needs. Thus, a viable off-the-shelf modular based on-site assemblage may be available to an operator for running off of a single electric hydraulic drive assembly.

First claim

We claim:

1. A modular downhole system comprising:
an electric hydraulic drive assembly;
a modular downhole tool ,wherein the modular downhole tool is an anchor actuator, and wherein the anchor actuator is coupled to the electric hydraulic drive assembly with an interface;
an axial actuator connected with a lower end of the anchor actuator, wherein the axial actuator is electrically and hydraulically coupled to the anchor actuator; and
a plug setting actuator connected with a lower end of the axial actuator, wherein the plug setting actuator is electrically and hydraulically coupled to the axial actuator, wherein anchoring the anchor actuator in a well and axially moving the axial actuator affects a position of the plug setting actuator.

2. The system of claim 1 further comprising a wireline cable secured thereto for deployment into a well.

3. The system of claim 1 further comprising a well isolation mechanism coupled to said plug setting actuator.

4. The system of claim 3 wherein said well isolation mechanism is one of a mechanical packer and a bridge plug.

5. A method of performing an application in a well with a modular system, the method comprising:
electrically and hydraulically coupling a modular tool of the system to an interface of a drive assembly of the system, wherein the modular tool is an anchor actuator;
electrically and hydraulically coupling an axial actuator to the anchor actuator;
electrically and hydraulically coupling a plug setting actuator to the anchor actuator;
disposing the system into the well over a wireline cable;
setting an anchor using the anchor actuator;
moving the axial actuator to move the plug setting actuator past an obstacle and to a desired location;
operating the plug setting actuator when the desired location is reached;
obtaining application data during said setting of the anchor actuator, moving of the axial actuator, and operating the plug setting actuator; and
altering said setting of the anchor actuator, moving of the axial actuator, and operating the plug setting actuator based on the obtained date.

Assignees

• Martinez Ruben
• Parra Luis
• Schlumberger Technology Corp

Inventors

• Martinez Ruben
• Parra Luis

Classifications

• E21B17/026

  Arrangements for fixing cables or wirelines to the outside of downhole devices · CPC title

• E21B23/00 Primary

  Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10) · CPC title

• E21B17/028

  Electrical or electro-magnetic connections · CPC title

• E21B23/04

  operated by fluid means, e.g. actuated by explosion (E21B23/08 takes precedence) · CPC title

• E21B23/0419

  using down-hole motor and pump arrangements for generating hydraulic pressure · CPC title