METHODS FOR UNCONVENTIONAL GAS RESERVOIR STIMULATION WITH STRESS UNLOADING FOR ENHANCING FRACTURE NETWORK CONNECTIVITY

The invention discloses a method for use in a wellbore in a tight gas shale formation, comprising: providing a hydraulic fracturing fluid to initiate at least a fracture in the shale; injecting a treatment fluid in the fracture to at least partially destabilize and remove the shale; and repeating th...

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Bibliographic Details
Main Authors ZAZOVSKY, ALEXANDER F, ENGLAND, KEVIN W, MASON, STEPHEN D
Format Patent
LanguageEnglish
French
Published 21.06.2012
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Summary:The invention discloses a method for use in a wellbore in a tight gas shale formation, comprising: providing a hydraulic fracturing fluid to initiate at least a fracture in the shale; injecting a treatment fluid in the fracture to at least partially destabilize and remove the shale; and repeating the step of fracturing the shale. L'invention porte sur un procédé destiné à être utilisé dans un puits de forage dans une formation de schiste gazéifère imperméable, lequel procédé met en oeuvre : la délivrance d'un fluide de fracturation hydraulique afin de déclencher au moins une fracture dans le schiste; l'injection d'un fluide de traitement dans la fracture afin de déstabiliser au moins partiellement et de retirer le schiste; et la répétition de l'étape de fracturation du schiste.
Bibliography:Application Number: WO2011US35455