Project Promoter – Politechnika Śląska Norwegian Partner – University of Stavanger

Design, environmental impact and performanceof energized fluids for fracturing oil and gas reservoir rocks

of Central EuropeAcronym: ENFLUID

Project Promoter – Politechnika Śląska

Norwegian Partner – University of Stavanger

Polish Partner – Oil and Gas Institute - NRI

Project duration: June 2013 – April 2016Budget 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 EOR2. Effects of fluids influence on the geochemistry of the formation3. Composition of fluid for stimulation of different formations of CE4. Mutual interactions between the fluids and the fractured rock5. Impact of designed fluids on the formation damage6. Flowback – treatment or recycling


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


Methodology • 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


Thank you for your attention


Project Promoter – Politechnika Śląska Norwegian Partner – University of Stavanger

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