Controllable production well packer
First Claim
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1. A packer adapted for use in a well, said packer including an electrically powered device adapted for receiving AC power from the surface using at least one of the tubing or casing as a conductor;
- wherein said electrically powered device comprises an electrically controllable valve adapted to control fluid communication from one side of said packer to another side of said packer;
wherein said electrically powered device further comprises a communications and control module being electrically connected to said electrically controllable valve, said module comprising a modem adapted to receive control commands encoded within communication signals, and said module being adapted to decode said control commands received by said modem and control the movement of said valve using said control commands when said packer is operably installed.
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Abstract
An apparatus and method for operating an electrically powered device in a packer using the piping structure of the well as an electrical conductor for providing power and/or communications. The electrically powered device may comprise an electrically controllable valve, a communications and control module, a modem, a sensor, and/or a tracer injection module.
179 Citations
21 Claims
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1. A packer adapted for use in a well, said packer including an electrically powered device adapted for receiving AC power from the surface using at least one of the tubing or casing as a conductor;
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wherein said electrically powered device comprises an electrically controllable valve adapted to control fluid communication from one side of said packer to another side of said packer; wherein said electrically powered device further comprises a communications and control module being electrically connected to said electrically controllable valve, said module comprising a modem adapted to receive control commands encoded within communication signals, and said module being adapted to decode said control commands received by said modem and control the movement of said valve using said control commands when said packer is operably installed. - View Dependent Claims (2)
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3. A petroleum well for producing petroleum products, comprising:
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a piping structure that is electrically conductive; a source of time-varying current electrically connected to said piping structure; an electrical return comprising at least a portion of an earthen ground; and a packer including an electrically powered device, said electrically powered device being electrically connected potential such that part of said time-varying current is routed through said device when said time-varying current is applied through said piping structure. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of operating a petroleum well comprising:
providing an electrically powered packer in a petroleum well; providing a piping structure in said well, said piping structure; operably installing said electrically powered packer in said well, said electrically powered packer comprising an electrically powered device, such that said device is electrically connected to said piping structure when said well is operable for petroleum production; operably installing an induction choke about part said piping structure; supplying time-varying current to said piping structure; routing part of said time-varying current through said electrically powered device using said induction choke; and producing petroleum products with said well;
wherein the electrically powered device is powered by a voltage differential across the induction choke.- View Dependent Claims (19, 20, 21)
Specification