METHOD FOR DETERMINING THE CLOSURE PRESSURE OF A HYDRAULIC FRACTURE

METHOD FOR DETERMINING THE CLOSURE PRESSURE OF A HYDRAULIC FRACTURE

The method relates to the field of hydraulic fracturing of subsurface formations. A mathematical simulation model of a pressure pulse propagation inside a wellbore and inside a fracture is created. Pressure pulses are sent to the wellbore, and the response of the well to the pressure pulses is regis...

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Hauptverfasser: SEGAL ARKADY YURIEVICH, BUTULA KURT KRESO, MANIERE JEROME
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator SEGAL ARKADY YURIEVICH
BUTULA KURT KRESO
MANIERE JEROME
description The method relates to the field of hydraulic fracturing of subsurface formations. A mathematical simulation model of a pressure pulse propagation inside a wellbore and inside a fracture is created. Pressure pulses are sent to the wellbore, and the response of the well to the pressure pulses is registered. Then, a bottom-hole pressure corresponding to each pulse is determined. An average fracture width is derived by using the mathematical simulation model of pressure pulse propagation inside the wellbore and inside the fracture, and a ratio between the simulated average fracture width and the determined bottom-hole pressure is determined. The said ratio is extrapolated to a zero-width point, and the closure pressure is determined as the bottom-hole pressure corresponding to the zero width.
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title METHOD FOR DETERMINING THE CLOSURE PRESSURE OF A HYDRAULIC FRACTURE
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