Abstract
Experiments for fracturing hot dry rock by high speed water jet were carried out. In this study the effects of rock temperature and water jet speed were studied. Specimens were 75mm in diameter and 150mm in length and were made of castable fire-resistant material. Their minimum compressive and tensile strengths were shown in Table 1. Temperatures of the specimen tested were 15, 200, 400, 600, 800, 1, 000 and 1, 140°C. Water jet speeds used were 70, 84 and 98m/s at the nozzle exit. The nozzle diameter, Do=1.4mm I.D.. The distance between the nozzle exit and the test surface of the specimen was kept constant at 40mm. Jet operation time was fixed at 10s.The experimental results indicated that the fracturing pattern and effectiveness varied characteristically with the specimen temperature and the jet speed.
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 callMore From: Journal of the Japanese Association for Petroleum Technology
Disclaimer: 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.
