Fracturing System and Method

Abstract

A system and method comprising at least one ported sleeve assembly and a flapper assembly positioned downwell of the ported sleeve assembly. The system provides for the use of multiple ported sleeve assemblies for each stage of a hydrocarbon producing well that can be opened with a single element, and multiple stages, each have the ability to be opened with a single element size.

1 . A fracturing system for use in a production well having a tubing string defining a flowpath, the system comprising:
 at least one sleeve assembly positionable in said tubing string, said at least one sleeve assembly comprising:
 a housing having a plurality of ports disposed radially therethrough; 
 a first sleeve at least partially within said housing and moveable between a first position and a second position, wherein in said first position said first sleeve is radially positioned between said plurality of ports and said flowpath, said first sleeve having an upper end, a first exterior surface having a first walking jay slot formed therein, and a first engagement surface having a first inner diameter; 
 a first guiding member fixed relative to said housing and positionable within said first walking jay slot; and 
 a first compression spring positioned between said upper end of said first sleeve and said ported housing; and 
   a flapper assembly positionable in said tubing string downwell of said at least one ported sleeve assembly, said flapper assembly comprising:
 a flapper seal; 
 a flapper plate rotatable between an opened position and a closed position, wherein in said closed position said flapper plate is engaged against said flapper seal to prevent fluid flow through said flapper seal in a downwell direction; 
 a second sleeve moveable between a first position and a second position, wherein in said first position at least a portion of said second sleeve is radially positioned between said flapper plate and the flowpath, said second sleeve having an upper end, a second exterior surface having a second walking jay slot formed therein, and a second engagement surface having a second inner diameter; 
 a second guiding member fixed relative to said flapper seal and positionable within said second walking jay slot; and 
 a second compression spring positioned between said upper end of said second sleeve and said flapper seal.