| 发明名称 |
COAL-METHANE HOLE EFFICIENCY ESTIMATION METHOD |
| 摘要 |
FIELD: controllable methane extraction from coal beds. ^ SUBSTANCE: method involves measuring methane concentration at different distances from well and at different ground depths with the use of gas sampling pipe; determining coal-methane hole efficiency from measured methane concentration before and after hydraulic fracturing of coal bed. ^ EFFECT: possibility of indirectly efficiency estimation. ^ 1 tbl |
| 申请公布号 |
RU2282723(C1) |
申请公布日期 |
2006.08.27 |
| 申请号 |
RU20040137961 |
申请日期 |
2004.12.27 |
| 申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "GAZPROM" (OAO "GAZPROM") |
发明人 |
KARASEVICH ALEKSANDR MIROSLAVOVICH;KREJNIN EFIM VUL'FOVICH;KJARGES ANATOLIJ ALEKSANDROVICH;STORONSKIJ NIKOLAJ MIRONOVICH |
| 分类号 |
E21F7/00 |
主分类号 |
E21F7/00 |
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