Design, environmental impact and performance
of energized fluids for fracturing oil and gas reservoir rocks
of Central Europe
Acronym: ENFLUID
Project Promoter – Politechnika Śląska
Norwegian Partner – University
of Stavanger
Polish Partner – Oil and Gas Institute - NRI
Project duration: June 2013 – April 2016
Budget and received funding: 4 062 628 PLN (990 064 Euro)
PROJECT KICK-OFF CONFERENCE Polish-Norwegian Research Programme Core 2012 Call & CCS 2013
Project objectives
Hydraulic fracturing is an engineered propagation of fractures in a rock by means of fluids injected at
high pressure into a well. It is essential for producing hydrocarbons from unconventional formations.
To avoid formation damage (swelling of clay minerals ) by a waterbased fracturing fluid - substituting
water by gases is possible. Such fracturing fluids are called energized fluids.
Development of optimal energized fracturing fluid compositions
for use in oil and gas reservoir rocks formations in CE
1. Petrophysical, mineralogical, and geochemical analyses in formulating the criteria
screening the energized fluid fracturing and EOR
2. Effects of fluids influence on the geochemistry of the formation
3. Composition of fluid for stimulation of different formations of CE
4. Mutual interactions between the fluids and the fractured rock
5. Impact of designed fluids on the formation damage
6. Flowback – treatment or recycling
PROJECT KICK-OFF CONFERENCE Polish-Norwegian Research Programme Core 2012 Call & CCS 2013
Expected results
WP1 - Acquisition and preparation of samples, petrological and geochemical
analyses – INIG-PIB – status - achieved
WP2 - Preparation and experimental evaluation of fluid systems – INIG-PIB
– status - ongoing
WP3 -Predicting geochemical reactions in fluid-rock systems, based on
experiments and numerical modeling - SUT– status - ongoing
WP4 - Fluid/Rock Interaction – UiS – status - ongoing
WP5 - Formation Damage Evaluation - UiS INIG-PIB SUT – status - ongoing
WP6 - Selection and testing the backflow treatment methods – SUT – status projected
PROJECT KICK-OFF CONFERENCE Polish-Norwegian Research Programme Core 2012 Call & CCS 2013
Methodology
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T.1.2. Mineralogical and geochemical analysis before- and petrophysical analysis
(porosity, permeability) before and after hydraulic operations
T.2.2. Experimental evaluation of physical properties of prepared energized (CO2, N2)
fracturing fluid systems
T.2.5. Analysis of facturing fluid filtration under dynamic and static conditions
T.3.6. Autoclave experiments, reproducing fracturing fluid–rock geochemical
interactions
T.3.7. Geochemical modeling of the reactions in fracturing fluid–rock systems
T. 4.3 Study of interactions in gas-fluid-rock systems controlling stability of energized
fracturing fluids (foam stability) and influencing permeability of the formation
T. 5.3 Evaluation of effectiveness of stimulation treatment
T.6.1. Assessment of the flowback waters composition
T.6.2. Selection of the best available treatment for the flowback waters
PROJECT KICK-OFF CONFERENCE Polish-Norwegian Research Programme Core 2012 Call & CCS 2013
Thank you for your attention
PROJECT KICK-OFF CONFERENCE Polish-Norwegian Research Programme Core 2012 Call & CCS 2013