Patent ID: 11970940
Assignee: CHONGQING HUADI RESOURCES ENVIRONMENT TECHNOLOGY CO., LTD
Field: Measurement (Instruments)
Classification: CPC E  G  Y | IPC E  G

Claim 2:
3. The induced earthquake evaluation method for hydraulic fracturing activated faults as claimed in claim 1, wherein in step S3, the fault type factors are divided, according to the induced earthquake probability P1, into four categories: type III fault, type IV fault, type II fault and type I fault; an induced earthquake probability of the type III fault greater than an induced earthquake probability of the type IV fault greater than an induced earthquake probability of the type II fault greater than an induced earthquake probability of the type I fault; the distance between hydraulic fracturing well and fault is divided, according to the induced earthquake probability P2, into four categories: a distance less than 1 kilometer (km), a distance of 1-3 km, a distance of 3-10 km, and a distance greater than 10 km; an induced earthquake probability of the distance less than 1 km greater than an induced earthquake probability of the distance of 1-3 km greater than an induced earthquake probability of the distance of 3-10 km greater than an induced earthquake probability of the distance greater than 10 km.