Analysis of the Impact of CO<sub>2</sub> Adsorption on Rock Wettability for Geological Storage of CO<sub>2</sub>
Bibliographic record
Abstract
High Resolution Image Download MS PowerPoint Slide Wettability change of rocks under high-pressure CO 2 is analyzed for CO 2 storage assessment. Increased water contact angle (measured by the sessile drop method) with CO 2 pressure on three different rocks is related to CO 2 adsorption on the rocks using complementary experimental results of CO 2 adsorption (by gravimetric measurement) and interfacial tension between water and CO 2 (by the pendant drop method). An analysis of free energy change accompanying CO 2 adsorption on the rock surface shows that adsorbed CO 2 could result in moving the CO 2 /water/rock contact line and change the rocks from water-wet to non-water-wet, increasing the potential for CO 2 to spread and displace water. The free energy change has not been studied previously, and the results suggest that CO 2 adsorption on rocks could decrease the capillary force in geological reservoirs and enable injected CO 2 to enter a greater portion of pore space. This would significantly increase the reservoir utilization efficiency and CO 2 storage capacity.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".