Empire Technology Development LLC

China Petroleum & Chemical Corporation

Junhua Zhang

Fan Yang

Qi Cheng Li

Xu Wang

Xuefeng Song

Xiaojun Mo

Qichun Wang

Hongwen Liang

Gewei Peng

Hailiang Zhang

Min Zeng

Described are a self-healing composition, and a preparation method for and an application of the composition. The composition is of a core-shell structure; the core contains a hydrogenated styrenic thermoplastic elastomer polymer and an inorganic filler; the shell contains a hydrophilic polymer; the composition has a density of 1.2-2 g/cm, a water contact angle of no more than 90°, and a diesel oil and/or natural gas absorption expansion ratio of 5-15 times. By coating the hydrogenated styrenic thermoplastic elastomer and the inorganic filler with the hydrophilic (surface polarized) polymer, a core-shell structure is formed. When the composition is used for well cementing in an oil/gas field, the composition has a density and compatibility matching cement mortar and thus can form a uniform and stable cement slurry for well cementing in the oil/gas field, and has excellent oil/gas absorption expansion performance and thus can expand after absorbing oil/gas to perform self-healing.

Composition, preparation method for and application of composition, and self-healing method for well cementing in oil/gas field

While a user utilizes a communication device to communicate with other devices over a network, certain technical issues may cause the interruption or disconnection of the communication. The communication device may be configured to relay the communication to a secondary device to continue the communication without interrupting the communication.

Data relay between communication devices

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Beijing, China

Junhua Zhang