Please join us in welcoming Professor Jon Olson (University of Texas, USA) for an afternoon dedicated to expert knowledge fresh from the USA on naturally fractured reservoirs.The incredible increase in oil and gas production in the United States can be largely attributed to the application of horizontal wells and hydraulic fracturing to organic-rich shales. One aspect of the hydraulic fracturing in these formations that seems unique is the apparent complexity of the induced fracture propagation, although fracture complexity has also been attributed to operations in tight gas sandstones and coals as well. 

Some of this complexity derives from the diversion of the hydraulic fractures by intersection with pre-existing natural fractures and faults. The factors that control fracture interaction were investigated for calcite cemented veins in subsurface core samples of Marcellus shale using the Semi-Circular Bend Test. 

Experimental results show that the approach angle and vein thickness have an important impact on whether the fracture-fracture interaction results in crossing or diversion. Scaled hydraulic fracturing experiments in synthetic blocks were used to demonstrate the three-dimensional aspect of fracture-fracture interaction. 

Numerical modeling is also discussed to illustrate how fracture interaction can influence overall hydraulic fracture network development. Many of these same concepts have been used in the past to explain natural fracture pattern development.

Date/Time:
Thusday 16 November, 2.00 - 3.30pm

Venue:
The University of Queensland, St Lucia
AIBN (Building 75), Room 132

Registration:
RSVP to ccsg@uq.edu.au by Thursday 9 November, indicating any dietary requirements (seats are limited)


About Professor Jon Olson

Jon is Professor and Department Chair in Petroleum and Geosystems Engineering at The University of Texas at Austin (USA). He specializes in rock mechanics applications related to the petroleum industry, focusing mostly on hydraulic fracture propagation and natural fracture pattern development. He is a distinguished member of the Society of Petroleum Engineers, has BS degrees in civil engineering and earth sciences from the University of Notre Dame, and a PhD in geomechanics from Stanford University. Before joining UT Austin, Jon spent 6 years at Mobil Research and Development Corporation in Dallas.

Read Jon’s full profile here.


 

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The UQ Energy Initiative is much more than only our Energy Exchange Industry Engagement, and Energy Express Seminars! Please check this space regularly for other events that may be of interest to you.