What is it about?

Hydrocarbon yield of source rocks is an important parameter in the evaluation of oil and gas resources, and its value determines the potential of conventional and unconventional oil and gas resources. We proposed a method and procedure for the evaluation of hydrocarbon yield of source rocks under open, semiopen, and closed systems. We consider the thermal pyrolysis experiment data, hydrocarbon generation kinetics model, and geological data to propose a very valuable evaluation method of hydrocarbon yield of source rock, which has a solid theoretical basis and strong applicability.

Featured Image

Why is it important?

Based on multiple thermal pyrolysis experiment data, three hydrocarbon generation kinetic models, and actual geological data (burial history, thermal history, and hydrocarbon generation threshold), we established the evaluation method and chart of hydrocarbon yield of source rocks under open, semiopen, and closed systems by using hydrocarbon generation kinetics method. The concept of degree of openness was proposed. From a closed system to an open system, the degree of openness increases gradually, and its value changes from 0 to 1. The hydrocarbon yield of source rocks in a semiopen system is closer to that under actual geological conditions, which is more conducive to accurately evaluating the potential of conventional and unconventional oil and gas resources.

Perspectives

Writing this article was a great pleasure as it has co-authors with whom I have had long standing collaborations. This article used the thermal pyrolysis experiment data, hydrocarbon generation kinetics model, and geological data to propose a very valuable evaluation method of hydrocarbon yield of source rock, which has a solid theoretical basis and strong applicability.

Wenguang Wang
China University of Petroleum Huadong

Read the Original

This page is a summary of: Evaluation method of hydrocarbon yield of source rocks in open, semiopen, and closed systems: A case study on the K1qn Formation, northern Songliao Basin, China, Interpretation, May 2022, Society of Exploration Geophysicists,
DOI: 10.1190/int-2021-0152.1.
You can read the full text:

Read

Resources

Contributors

The following have contributed to this page