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:
Mar. 14, 2006
Filed:
Jul. 29, 2003
James M. Costley, Freeport, TX (US);
David M. Eslinger, Broken Arrow, OK (US);
Randolph J. Sheffield, Hatton of Fintray, GB;
L. Michael Mckee, Friendswood, TX (US);
James M. Costley, Freeport, TX (US);
David M. Eslinger, Broken Arrow, OK (US);
Randolph J. Sheffield, Hatton of Fintray, GB;
L. Michael McKee, Friendswood, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method and apparatus for fluid treatment of a selected interval of a well and then cleaning the selected interval and the apparatus of treatment residue. An straddle tool is run into the well to treatment depth on fluid supplying tubing and has upper and lower packers that establish sealing with the casing and define an annular interval between the packers and between the tool and casing. Fluid, such as fracturing fluid, is pumped through the tubing to the tool and is diverted through an outlet port of the tool into an upper portion of the annular interval. Fluid then flows from a lower portion of the annular interval through an inlet port below the outlet port and at low flow rate is dumped into the casing through a pressure responsive dump valve. The outlet port and inlet port are located to accomplish cleaning of residue from the packers.