A method for real time process control of well stimulation

Details A method for real time process control of well stimulation A method for real time process control of well stimulation

E - Fixed Constructions

21

B

E21B 49/00 (2006.01) C09K 8/72 (2006.01)

Patent

CA 2179024

A system (10) and method for matrix stimulation field monitoring providing real time control, optimization and post job evaluation of matrix treatments is disclosed herein. Using calculated or measured bottom hole pressures or coil tubing reflective pressures, the system (10) and method predicts pre-treatment damage or skin from a step rate test, then shows the evolution of skin removal versus treating fluid volume in real time. The method and system (10) provides real time information about diverter use, treatment height, damage radius and other important well parameters.

L'invention concerne un système (10) et un procédé de surveillance d'un champ de stimulation matricielle permettant la commande en temps réel, l'optimisation et l'évaluation, après travail, de traitements matriciels. Sur la base des pressions de fond de puits ou des pressions de réflexion de la colonne à spirale, calculées ou mesurées, le système (10) et le procédé permettent la prévision d'une détérioration ou dommage de prétraitement à partir d'un test échelonné, et, ensuite la détermination de l'évolution de l'élimination du domage, en fonction du volume de fluide de traitement, en temps réel. Grâce audit procédé et audit système (10), l'on obtient des informations en temps réel sur l'utilisation de déflecteurs, le niveau du traitement, le rayon de détérioration et d'autres paramètres importants relatifs au puits de forage.

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