Evaluating the Sealing Effectiveness of a Caprock-Fault System for CO₂-EOR Storage: A Case Study of the Shengli Oilfield

Table 6

Comprehensive grading of the sealing effectiveness of the caprock-fault system.

Caprock-fault seal classification	Bad	Medium	Good	Better	Best
Score	<0.56	0.56~0.65	0.65~1.45	1.45~1.61	>1.61
Area percentage	1.59%	2.63%	14.89%	37.00%	43.55%