Real Time and Playback Interpretation of Fracturing Pressure Data

摘要

The invention provides methods for performing the appropriate manipulation of pressure-time data during a hydraulic fracturing treatment or test to determine the condition of the created fracture. The mode of growth, dilation, or intersection with one or more natural fractures may be determined accurately and quickly. The methods include the steps of acquiring fracturing data, assessing the fracturing index based on a moving reference point, and establishing the mode of fracture propagation using the fracturing index. The methods provide for the determination of the time of intersection of a hydraulic fractures with one or more natural fractures. The methods also provide for an early warning of sand-out possibility. The data analysis may be performed in real time during the progress of the treatment or test or in a playback mode after the completion of the treatment or test.

主权项

1. A real-time fracturing pressure response analysis system, the system comprising
one or more processors; an input/output unit in communication with the one or more processors; one or more electronic interfaces set up to display a report of fracture analysis and a report of possible reactions to continued fracture treatment injection or change in fracturing operation; and a non-transitory computer-readable medium positioned in communication with the one or more processors and containing one or more computer programs instructing one or more processors to perform operations of:
producing the fracture analysis interface to display to a user thereof one or more real-time fracture analysis reports;calculating, by one or more processors, the fracturing index and its variation with time and output; andoutputting to one or more electronic interfaces, which are arranged to display a real-time fracture analysis report for a reservoir, the report establishing fracture propagation behavior and including an evaluation of projected fracture propagation.