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.
Patent No.:
Date of Patent:
Nov. 10, 2009
Filed:
Jun. 13, 2005
Michael H. Kenison, Missouri City, TX (US);
Michael G. Gay, Dickinson, TX (US);
Robert Bucher, Houston, TX (US);
Mahmuda Afroz, Houston, TX (US);
Michael H. Kenison, Missouri City, TX (US);
Michael G. Gay, Dickinson, TX (US);
Robert Bucher, Houston, TX (US);
Mahmuda Afroz, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Apparatus and methods for selectively and safely reversing flow in coiled tubing used for wellbore cleanouts are disclosed. One apparatus includes a section of coiled tubing having a main flow channel, at least two flow-preventing valves in the section of coiled tubing, each adapted to close the main flow channel upon attempted flow reversal; and at least one actuator adapted to deter closing of the flow-preventing valves. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).