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US 7,441,604 B2Granted
Fracking multiple casing exit laterals
AssigneeBaker Hughes Incorporated
InventorRickey J. Green
Life of this patent
Estimating the term…
Abstract
A method of fracking multiple laterals sequentially is described. It allows the drilling rig to be moved off site as the laterals are fracked. Thereafter, they can all be produced simultaneously. The laterals begin from a main lateral that is already oriented in the producing zone and preferably exit in a coplanar manner so as to extend immediately into the producing formation.
Claims20
A completion method for a wellbore extending from a surface, comprising:
- providing at least three laterals from an existing wellbore;
- providing downhole equipment to allow selective sequential access to said laterals without using a work string in the wellbore;
- removing any drilling or completion rig from the surface at the wellbore;
- fracking said laterals sequentially after removing said rig.
1 more element
A completion method, comprising:
- drilling at least three laterals from an existing wellbore with a rig;
- providing downhole equipment to allow selective sequential access to said laterals;
- fracking said laterals sequentially;
- spanning the exit of each lateral after a first lateral with a pair of packers and a ported sub in between for selective access to said straddled lateral;
- sequentially delivering bigger plugs to actuate progressively higher ported subs to access laterals in sequence moving uphole for fracking.
2 more elements
A completion method for a wellbore extending from a surface, comprising:
- providing at least two coplanar laterals in a wellbore;
- providing downhole equipment to allow selective sequential access to said laterals without using a work string in the wellbore;
- removing any drilling or completion rig from the surface at the wellbore;
- fracking said laterals sequentially after removing said rig.
1 more element
A completion method, comprising:
- drilling at least two coplanar laterals in a wellbore with a rig;
- providing downhole equipment to allow selective sequential access to said laterals;
- fracking said laterals sequentially;
- spanning the exit of each lateral after a first lateral with a pair of packers and a ported sub in between for selective access to said straddled lateral;
- sequentially delivering bigger plugs to actuate progressively higher ported subs to access laterals in sequence moving uphole for fracking.
2 more elements
Dependencies are inferred from the claim text.