Abstract
M31 fault-block with reservoir permeability at around 9 md, belongs to low permeability reservoir with more strata and poor water absorption. Its daily water injection is 10 m3 per day and pressure is 30Mpa, and 10 m3 per day. Oil wells with low yield and low liquid badly need stratum energy. Aiming at this kind of low permeability sandstone reservoir, it researched piecewise hydrogen acid acidification technology to overcome the limitations of conventional mud acid acidification such as small effective radius and acidification sediment secondary pollution; also mutual influence between different layers was reduced. The implementation of the technology to M31-6 Wells got obvious effect of augmented injection, which has very important practical significance for the development of low permeability sandstone oil field and improves the ultimate recovery of oil field.
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: IOP Conference Series: Earth and Environmental Science
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.
