APPLICATION OF DEPTH DERIVATIVE OF DTS MEASUREMENTS IN IDENTIFYING INITIATION POINTS NEAR WELLBORES CREATED BY HYDRAULIC FRACTURING

摘要

A method for using the depth derivative of distributed temperature sensing data to identify initiation points near wellbores created by hydraulic fracturing comprises providing a fiber optic based distributed temperature sensing measurement system through a production region; gathering the temperatures through the production region as a function of the depth in the sub-surface well and as a function of the elapsed time; calculating from the gathered data the depth derivative of the temperature changes as a function of depth in the subsurface well and of the elapsed time; and displaying the depth derivative data for analysis of initiation points near wellbores created by hydraulic fracturing.