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:
Mar. 24, 2020

Filed:

May. 02, 2016
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Jose Escudero, Pearland, TX (US);

Steven W. Henderson, Katy, TX (US);

Byron Enrique Rosario Ruiz, Quito, EC;

Carlos Baumann, Austin, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/117 (2006.01);
U.S. Cl.
CPC ...
E21B 43/117 (2013.01);
Abstract

A technique facilitates formation of perforations into a formation surrounding a borehole in a manner which enhances fluid flow along the perforations. The technique comprises providing a plurality of perforating charges which may be detonated in the borehole to create perforations. The detonation is used to initiate a time delay device for controlling a subsequent detonation of a corresponding charge. The corresponding charge is used to create a pressure underbalance in the borehole. This relatively lower pressure in the borehole is selectively established to create a reverse flow through the perforations which cleans the perforations.


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