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:
Aug. 06, 2013
Filed:
Nov. 05, 2009
Donald W. Tinker, Rapid City, MI (US);
Donald W. Tinker, Rapid City, MI (US);
Team Oil Tool, LP, The Woodlands, TX (US);
Abstract
The present application is to a method of sequentially drilling a number of frac sleeves in a down hole well. The design enables the removal of fracture sleeve pistons from between treatment zones without requiring drilling or milling of the sleeve while allowing for full flow of fluids after treatment. A number of plugs or pistons having sequentially smaller central bores allows for balls to sequentially be inserted through the tool to selectively close off the pistons to isolate one zone from another. A release tool may inserted into the tool to engage and unthread the plugs to open up the inner diameter of the tool to allow greater production flow through the tool. The plugs may have mating tabs and holes so that as each plug is unthreaded it falls to the next plug and engages so that each plug may sequentially be unthreaded from the sleeve.