The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 25, 2018

Filed:

Jun. 08, 2016
Applicant:

Baker Hughes Incorporated, Houston, TX (US);

Inventors:

Ewoud J. Hulsewe, The Woodlands, TX (US);

Edward T. Wood, Kingwood, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 34/10 (2006.01); E21B 43/26 (2006.01); E21B 34/14 (2006.01); E21B 34/16 (2006.01); E21B 43/14 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 34/14 (2013.01); E21B 34/10 (2013.01); E21B 34/16 (2013.01); E21B 43/14 (2013.01); E21B 43/26 (2013.01); E21B 2034/005 (2013.01); E21B 2034/007 (2013.01);
Abstract

Fracking ports are initially obstructed with respective biased sleeves that have an associated release device responsive to a unique signal. The signal can be electronic or magnetic and delivered in a ball or dart that is dropped or pumped past a sensor associated with each release device. Each sensor is responsive to a unique signal. When the signal is received the release device allows the bias to shift the sleeve to open the fracture port and to let a flapper get biased onto an associated seat. The flapper and seat are preferably made from a material that eventually disappears leaving an unobstructed flow path in the passage. The method calls for repeating the process in an uphole direction until the entire zone is fractured. The flapper and seat can dissolve or otherwise disappear with well fluids, thermal effects, or added fluids to the well.


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