1. Imaging Techniques for Rock Characterization and EOR Processes 16. October 2012 Jarand Gauteplass Department of Physics and Technology University of Bergen

2. MRI-experiment CT-experiment

3. Experimental procedure: MRI-experiment

4. Experimental procedure: CT-experiment

5. Ambient temperature, 1200 psi CHP_CO2_2

6. SCA2008-41

76. Ambient temperature and pressure

77. Outcrop from Portland quarry in Ålborg, DK Similar to chalk reservoir rock in the North sea Effective porosity: 42 – 48% Abs permeability: 2 – 6 mD 99% calcite, 1% quartz

78. Results: Rock characterization using CT 40 x 40 x 42 microns resolution 1.5“ Rørdal chalk

79. Results: Rock characterization using CT 40 x 40 x 42 microns resolution 1.5“ Rørdal chalk

80. Results: Rock characterization using CT 40 x 40 x 42 microns resolution 1.5“ Rørdal chalk

81. Results: Rock characterization using CT 40 x 40 x 42 microns resolution 1.5“ Rørdal chalk

82. Ambient temperature, 1200 psi CHP_CO2_8

83. Results: CO 2 injection One SWW Rørdal chalk core (IAH=1.0) Liquid CO 2 conditions First contact miscible displacement Imaged using industrial CT

85. 0 PV CO 2

86. 0.01 PV

87. 0.04 PV

88. 0.07 PV

89. 0.10 PV

90. 0.12 PV

91. 0.15 PV

92. 0.18 PV

93. 0.21 PV

94. 0.24 PV

95. 0.27 PV

96. 0.30 PV

97. 0.33 PV

98. 0.36 PV

99. 0.38 PV

100. 0.41 PV

101. 0.44 PV

102. 0.48 PV

103. 0.53 PV

104. 0.59 PV

105. 0.65 PV

106. 0.88 PV

107. 1.06 PV

108. Conclusions Shear bands identified Small heterogeneties have a large impact on core floods