Abstract
The thermal maturity is of great significance in the evolution of pores in gas shales. In this work, the comparison of pore structures between Wufeng-Longmaxi and Niutitang shales and its corresponding extracted organic matter (OM) is made. The Wufeng-Longmaxi shales have higher total pore volumes, surface areas and porosity than the Niutitang shales and OM pores are the main pore types in both shales. With the thermal maturity (Ro) increases, the OM porosity decreases. Combined with literature results, it is further proved that the evolution of OM pores was related to the gas generation with increasing thermal maturity. Compared with Niutitang shales, the lower thermal maturity of Wufeng-Longmaxi shales is beneficial for preserving OM pores and providing better connectivity. It can be concluded that the thermal maturity is the main controlling factor on the development of OM pores, which are important for the shale gas generation and preservation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
