An in-situ polymerization plugging hydrogel [P] for delaying gel formation in high-temperature oil reservoirs. The patent number is ZL: 20110235593.6 (authorized).
A temperature-resistant and salt-resistant amphiphilic polymer and its preparation method [P]. ZL patent number: 20131053660.6438+0 (authorized).
A temperature-resistant and salt-resistant high-temperature self-crosslinking in-situ polymerization plugging hydrogel [P]. The patent number is ZL: 201510004908.4.
A phenolic weak gel profile control and flooding agent [P] for rapid gel formation in low temperature reservoirs. The patent number is ZL: 201510232844.3.
A well killing and workover method combined with water plugging [P]. Patent number: ZL: 201510290186.3.