Patent ID: 11899154
Assignee: nan
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The DAS same-well monitoring real-time microseismic effective event identification method based on deep learning according to claim 2, wherein the DAS-based horizontal well microseismic monitoring system comprises a metal sleeve and an armored optical cable fixedly arranged outside the metal sleeve, and a single-mode optical fiber is arranged in the armored optical cable;
wherein the constructing a DAS-based horizontal well microseismic monitoring system comprises:
inserting the metal sleeve and the armored optical cable into a drilled wellbore synchronously;
pumping cement slurry from a bottom of a well, letting the cement slurry return to a wellhead from the bottom of the well along an annular space between an outer wall of the metal sleeve and the wellbore, allowing the metal sleeve, the armored optical cable and formation rock to be fixed together after the cement slurry is solidified; and
providing a DAS modem, and connecting the single-mode optical fiber in the armored optical cable to a DAS signal input port of the DAS modem at the wellhead.