[12] Patent
[11] Patent No.:GC0011527  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2020                77/2020  
Number of the Decision to Grant the Patent:2020/176285
Date of the Decision to Grant the Patent:09/Dec/2020

[21] Application No.:GCC/P/2009/36848

[22] Filing Date:7/3/2009

[30] Priority:

[33] State [32] Priority date [31] Priority No.

[72] Inventors:1- Philip M. SniderŲŒ2- Daniel G. Purkis

[73] Owner: Weatherford Technology Holdings, LLC, 2000 St. James, Houston Texas 77056, USA

[74] Agent: Saba & Co. T.M.P




Int. Cl.: E21B 23/08; E21B 43/26; E21B 34/14 (2006.01)

[56] Cited Documents:

-US 2004211567 A1 (INTEGRATED PETROLEUM TECHNOLOG) 28 October 2004
-US 2002007949 A1 (Tolman et al.) 24 January 2002
Examiner: Eng. Ahmed Saleem AlHinai

[57] Abstract: A dedicated hydraulic line for transmission of a signal device capable of generating one or more unique signals to one or more tools within a subterranean well. Each tool can be equipped with a reader device for receiving signals from and transmitting signals to the signal device. Each reader device can control operation of the tool associated therewith if the reader device is programmed to respond to signals received from the control device. Hydraulic fluid used to operate the tool can be conveyed via the dedicated hydraulic line or a separate hydraulic line. A separate hydraulic line can be used to reset the tool. Where the tools include sliding sleeves, the tools can be used to hydraulically fracture subterranean environs at spaced apart locations along a well bore in any desired sequence and without removing the tools from the well during the fracturing process.
No. of claims: 14     No. of figures: 5


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