US 9,303,501 B2
Method and apparatus for wellbore fluid treatmentGeneral
US 9,303,501 B2
Method and apparatus for wellbore fluid treatment
Tech Center:
3600 Transportation, Construction, Electronic Commerce, Agriculture, National Security and License and Review
Examiner:
Kenneth L Thompson
Art Unit:
3676 Wells, Earth Boring/Moving/Working, Excavating, Mining, Harvesters, Bridges, Roads, Petroleum, Closures, Connections, and Hardware
Inventors:
Jim FEHR; Daniel Jon THEMIG
Assignee:
Priority:
11/19/01
Filed:
10/30/15
Granted:
04/05/16
Expiration:
05/13/24
Abstract
A method for fracturing a hydrocarbon-containing formation includes running a tubing string into an open hole and uncased, non-vertical section of the wellbore, and expanding first, second, and third solid body packers until each sets and seals against the wellbore wall. The method also includes applying a first pressure within the tubing string inner bore such that the hydraulically actuated sliding sleeve moves from a closed port position to an open port position without engaging any fluid conveyed sealing device. The method also includes conveying a sealing device through the tubing string, passing through a first sliding sleeve and landing in and sealing against a second sliding sleeve's seat moving the second sliding sleeve to an open port position permitting fluid flow through a second port. And the method includes pumping fracturing fluid through the second port and into an annular wellbore segment to fracture the hydrocarbon-containing formation.
Cooperative Patent Classification (CPC)
E21E21B33/1208E21B