Development and Characterization of the Shale Stratum Well Wall Stabilized with Nanosomal Sealing Agent
Daqi Li,
Shuyang Gao,
Zhichuan Tang
et al.
Abstract:The development of micro cracks in shale formations can easily lead to wellbore instability caused by liquid phase invasion. In order to effectively seal the shale micropores, the surface treatment of nano-SiO2 particles was developed using the silicane coupling agent A-1891. Then, the temperature-sensitive polypenic acrylamide polymer was modified onto the surface of the nanoprocal particle through reaction to obtain the nanosomal blocking agent ASN. The infrared spectrum shows that there are chemical bonds b… Show more
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