Perfecting In-situ Stress Calibration for Field Developments

When:  Nov 4, 2020 from 12:00 PM to 01:30 PM (MY)
Associated with  Kuala Lumpur Section
Wireline straddle-packer microfrac testing has evolved significantly since its introduction to the industry as the recommended methodology for in-situ stress measurements; however, these subsurface stress tests are underutilized today and only conducted in few data-acquisition wells. Initially, the risk of unsuccessful microfrac testing was high due to unstable open-hole conditions combined with inferior tool deployment and deficient straddle-packer performance. Additionally, the industry found basic effective in-situ stress models that require few field calibration points from casing-shoe leak-off tests or borehole breakout modelling. Consequently, microfrac testing became a nice-to-have experiment rather than an essential subsurface tectonic stress calibration data. Then, the shale-gas revolution brought the inescapable pursuit of more hydraulically fractured wells in tight formations where basic effective stress ratio models were unable to predict lithology-dependent stress contrast between pay and non-pay intervals. Consequently, straddle packer microfrac tests have become more relevant to calibrate subsurface tectonic strains and predict accurate fracture containment in unconventional reservoir developments. Moreover, straddle packer tool capabilities were recently upgraded for cap-rock integrity assessment in enhanced oil recovery injectors, cutting re-injection wells, and underground gas storage projects. Finally, proper microfrac stress calibration is also important for accurate compaction & subsidence modelling of depleted reservoirs and wellbore stability analysis of extended reach drilling wells
#DrillingandCompletions
#Geomechanics

Location

Dial-in Instructions:
Kindly register in the link below. Zoom meeting link will be send out to your email: https://pubs.spe.org/en/dl/reg/20DL089/?_ga=2.16436213.212990186.1603797927-1388405232.1543309432
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Contact

Syareena Ali
+60323920575
syareena_ali@petronas.com