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:
Sep. 18, 2001
Filed:
Jul. 20, 1999
Noel A. Monjure, Houston, TX (US);
David D. Comeaux, Sugarland, TX (US);
Michael J. Scott, Houston, TX (US);
Kenneth Sikes, Sr., Marrero, LA (US);
Frank Ditta, Harvey, LA (US);
Tim Gus Wolcott, New Orleans, LA (US);
Larry M. Young, Covington, LA (US);
ABB Vetco Gray, Inc., Houston, TX (US);
Abstract
An apparatus for insertion into a well to displace well fluid. A flexible hose is lowered into an annulus between strings of casing. A nozzle is affixed to the lower end of the hose. During insertion, the hose is pressurized and rigid to keep the hose from winding about the well. To keep the hose rigid, internal pressure is maintained in the hose. The nozzle is provided with a check valve that holds the internal pressure up to a selected amount. Once the hose is lowered to a desired depth, the operator increases the pressure sufficiently in the hose to open the check valve, thereby allowing heavy liquid to flow out. The heavy liquid displaces the lighter well production, which flows out of the outlet. After the heavy fluid has been dispensed, the internal pressure is reduced, causing the check valve to close. The check valve can also be opened during insertion, if desired.