Abstract
In this article, an in-house device is used to study the prevention of natural gas hydrate (NGH) decomposition performance and the mechanism of the low-heat cement for cementing. The results show that the natural gas hydrate can decompose to different degrees due to the hydration heat of the G-class oil well cement at the experimental conditions of 281.15 K & 8 MPa and 277.15 K & 6.5 MPa. Decomposition occurs within the period of hydration heat peak. The visualization window allows observing the decomposition and reduction of natural gas hydrate. The low-heat cement can effectively prevent the decomposition of natural gas hydrate at the experimental conditions of 281.15 K & 8 MPa, 277.15 K & 6.5 MPa, and 273.15 K & 4.5 MPa. The hydration heat experiment found that with the decrease in the hydration environment temperature, the hydration temperature rise appeared significantly later, the induction period was delayed into the acceleration period, the maximum of hydration temperature rise exhibited a decreasing phenomenon, and the hydration temperature rise of low hydration heat cement was far lower than that of the G-class oil well cement.
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.
