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:
Jul. 10, 2018

Filed:

Jul. 16, 2015
Applicants:

James B Crawford, Lafayette, LA (US);

Joseph W Elsbury, Iii, Broussard, LA (US);

Inventors:

James B Crawford, Lafayette, LA (US);

Joseph W Elsbury, III, Broussard, LA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/00 (2006.01); E21B 37/06 (2006.01); E21B 37/02 (2006.01); E21B 17/10 (2006.01);
U.S. Cl.
CPC ...
E21B 37/00 (2013.01); E21B 17/10 (2013.01); E21B 37/02 (2013.01); E21B 37/06 (2013.01);
Abstract

A wireline deployed fluid blasting tool for removing obstructions from oil and gas wellbore tubing is disclosed. The tool has an inner tubular mandrel retaining a releasable outer sleeve creating an annular fluid passage in communication with fluid ejection ports. Resilient seals seal the annulus between the tool and the wellbore tubing allowing fluid pressure above the tool to advance the tool through the tubing. Fluid enters the annular fluid passage through fluid perforations in the outer sleeve to exit the fluid ejection ports to create a fluid blast to remove obstructions. The outer sleeve shifts along the inner mandrel by fluid pressure to open fluid inlet passages into the inner mandrel allowing fluid to enter and exit through the mandrel while bypassing the annular fluid passage and fluid ejection ports to facilitate pulling the tool from the tubing.


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