The document discusses the SEC oil and gas reserves evaluation guidelines and their practical application. It examines key aspects of the guidelines including reasonable certainty, reliability of technology, and the use of analogy in evaluations. Examples are provided of applying volumetric and dynamic data, well testing, and reservoir modeling and analogy to proved reserves evaluations in oilfields in China according to SEC standards. The document concludes that accurate reserves evaluations per SEC guidelines are important for reflecting asset value and that future work can enhance proved reserves assessments through continued integration of domestic and international standards and new technologies.