| Standard ID | SY/T 6491-2011 (SY/T6491-2011) |
| Description (Translated English) | Evaluation and perforating test for oil formation casing in model well |
| Sector / Industry | Oil & Gas Industry Standard (Recommended) |
| Classification of Chinese Standard | E12 |
| Classification of International Standard | 75.020 |
| Word Count Estimation | 11,169 |
| Date of Issue | 2011-07-28 |
| Date of Implementation | 2011-11-01 |
| Older Standard (superseded by this standard) | SY/T 6491-2000 |
| Quoted Standard | GB/T 10111; GB/T 20489; SY/T 6411.1 |
| Summary | This standard specifies the production casing perforation test wells in the simulation test equipment, test conditions, test methods and evaluation. This standard applies to an outside diameter of 140 mm production casing simulation test and evaluation of well perforation. |