FIELD: oil production industry, particularly secondary and tertiary methods for oil recovery increase from oil formations by applying bioreagent and bactericide action to formation.
SUBSTANCE: method involves injecting excessive active silt passing through secondary sumps of biological disposal plant through injection wells; injecting aqueous bactericide solution in 6-12 months after active silt injection and producing oil through production well. Above active silt treated with polydimethyldiallilammonium chloride is used as nutrient substrate with concentration of 400-400 mg/dm and having main substance in amount of 38-40 mass%.
EFFECT: increased efficiency of formation treatment due to successive bioreagent and bactericide action and increased conformance.
1 ex, 4 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR OIL FIELD DEVELOPMENT | 2005 |
|
RU2302521C1 |
| OIL FORMATION RECOVERY INCREASING COMPOSITION | 2001 |
|
RU2180396C1 |
| METHOD OF DEVELOPING OIL DEPOSIT | 1998 |
|
RU2136867C1 |
| OIL-EXPELLING AGENTS | 1999 |
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RU2175717C2 |
| COMPOSITION FOR RAISING THE FORMATION OIL RECOVERY AND METHOD OF ITS PREPARATION | 1995 |
|
RU2078915C1 |
| OIL FIELD DEVELOPMENT METHOD | 1999 |
|
RU2150580C1 |
| METHOD FOR OIL DISPLACEMENT BY WATERFLOODING | 2007 |
|
RU2365746C2 |
| CONTROL METHOD OF INJECTIVITY ACCEPTANCE PROFILE OF INJECTION WELL | 2019 |
|
RU2729667C1 |
| BACTERICIDE COMPOSITION | 1995 |
|
RU2078914C1 |
| METHOD OF DEVELOPMENT OF OIL FIELD | 1997 |
|
RU2143549C1 |
