RU2001128212A - Способ обработки подземных продуктивных пластов - Google Patents
Способ обработки подземных продуктивных пластовInfo
- Publication number
- RU2001128212A RU2001128212A RU2001128212/03A RU2001128212A RU2001128212A RU 2001128212 A RU2001128212 A RU 2001128212A RU 2001128212/03 A RU2001128212/03 A RU 2001128212/03A RU 2001128212 A RU2001128212 A RU 2001128212A RU 2001128212 A RU2001128212 A RU 2001128212A
- Authority
- RU
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- Prior art keywords
- reservoir
- preceding paragraphs
- ester
- processing fluid
- injected
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Claims (34)
1. Способ обработки повреждения формации в подземном продуктивном пласте, содержащий введение в продуктивный пласт обрабатывающей жидкости, содержащей растворенные или диспергированные в воде сложный эфир и разрушитель полимера, так что сложный эфир гидролизуется с получением органической кислоты для растворения растворимого в кислоте материала, присутствующего в продуктивном пласте, и разрушитель полимера разрушает полимерный материал, присутствующий в продуктивном пласте.
2. Способ по п.1, в котором подземный продуктивный пласт является пластом углеводородов.
3. Способ по п.2, который дополнительно содержит извлечение углеводорода из обработанного продуктивного пласта.
4. Способ по п.2 или 3, в котором углеводород является нефтью.
5. Способ по п.2 или 3, в котором углеводород является газом.
6. Способ по п.1, в котором подземный продуктивный пласт является водным продуктивным пластом.
7. Способ по п.6, который дополнительно содержит добычу воды из обработанного подземного пласта.
8. Способ по любому одному из предшествующих пунктов, в котором сложный эфир является сложным эфиром карбоновой кислоты.
9. Способ по любому одному из предшествующих пунктов, в котором сложный эфир является сложным эфиром алифатической карбоновой кислоты формулы RCO2H, где R представляет водород, алкильную группу, имеющую от 1 до 6 атомов углерода, или -R'-CO2H, где R' представляет связь или алкиленовую группу, имеющую от 1 до 6 атомов углерода, причем указанная алкильная или алкиленовая группа является незамещенной или замещенной галогеном или гидроксилом.
10. Способ по любому одному из предшествующих пунктов, в котором сложный эфир представляет собой 1,2,3-пропантриола триацетат, 1,2,3-пропантриола диацетат, этиленгликоля диацетат, диэтиленгликоля диацетат или триэтиленгликоля диацетат.
11. Способ по любому одному из предшествующих пунктов, в котором концентрация сложного эфира в жидкости для обработки составляет, по меньшей мере, примерно 5% вес./об.
12. Способ по п.1, в котором разрушитель полимера представляет собой гидролазный фермент.
13. Способ по любому одному из предшествующих пунктов, в котором разрушитель полимера представляет собой гидролизующий полисахарид фермент.
14. Способ по любому одному из предшествующих пунктов, в котором разрушитель полимера представляет собой фермент, способный гидролизовать крахмал, ксантан, целлюлозу, гуар, склерогликан или сукциногликан или производное любого одного из этих полимеров.
15. Способ по любому одному из пп.1-11, в котором разрушитель полимера является окислителем.
16. Способ по любому одному из пп.1-11 или 15, в котором разрушитель полимера представляет собой окислитель, выбранный из персульфата, гипохлорита, пероксида, пербората, перкарбоната, перфосфата, персиликата и продукта присоединения катиона металла или перекиси водорода.
17. Способ по п.15 или 16, в котором окислитель находится в виде препарата с замедленным высвобождением.
18. Способ по любому одному из предшествующих пунктов, в котором обрабатывающая жидкость дополнительно содержит фермент, способный гидролизовать сложный эфир.
19. Способ по любому одному из пп.1-18, в котором жидкость для обработки дополнительно содержит пероксид.
20. Способ по п.18, в котором указанный фермент представляет собой липазный, эстеразный или протеазный фермент.
21. Способ по п.19 или 20, в котором пероксид является перборатом или перкарбонатом.
22. Способ по любому одному из предшествующих пунктов, в котором температура формации, несущей растворимый в кислоте материал и полимерный материал, равна, по меньшей мере, 4°С или выше.
23. Способ по любому одному из предшествующих пунктов, в котором обрабатывающую жидкость оставляют в продуктивном пласте на, по меньшей мере, 1 ч.
24. Способ по любому одному из предшествующих пунктов, в котором обрабатывающую жидкость вводят в продуктивный пласт через ствол скважины, который проходит в продуктивный пласт.
25. Способ по п.24, в котором ствол скважины является вертикальным, отклоняющимся, наклонным или горизонтальным.
26. Способ по любому одному из пп.1-25, в котором обрабатывающую жидкость вводят в продуктивный пласт через бурильную колонну.
27. Способ по любому одному из пп.1-25, в котором обрабатывающую жидкость вводят в продуктивный пласт через спирально свернутый трубопровод.
28. Способ по любому одному из пп.1-25, в котором обрабатывающую жидкость вводят в продуктивный пласт путем ее накачивания в кольцевое пространство.
29. Способ по любому одному из пп.12-14 или 18 - 20, в котором каждый фермент находится в форме препарата с замедленным высвобождением.
30. Способ по любому одному из предшествующих пунктов, в котором обрабатывающую жидкость вводят до степени ниже давления разрыва продуктивного пласта.
31. Способ по любому одному из пп.1-29, в котором обрабатывающую жидкость вводят до степени выше давления разрыва продуктивного пласта.
32. Способ по любому одному из предшествующих пунктов, в котором продуктивный пласт представляет собой или включает карбонатную породу.
33. Способ по п.1, в котором повреждением формации является фильтрационная корка.
34. Способ по п.1, в котором повреждением формации является биопленка.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB9906484.2A GB9906484D0 (en) | 1999-03-19 | 1999-03-19 | Method for treatment of underground reservoirs |
| GB9906484.2 | 1999-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2001128212A true RU2001128212A (ru) | 2003-07-27 |
| RU2249097C2 RU2249097C2 (ru) | 2005-03-27 |
Family
ID=10850059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2001128212/03A RU2249097C2 (ru) | 1999-03-19 | 2000-03-20 | Способ обработки подземных продуктивных пластов |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6763888B1 (ru) |
| AU (1) | AU3308300A (ru) |
| CA (1) | CA2366350C (ru) |
| GB (2) | GB9906484D0 (ru) |
| MX (1) | MXPA01009400A (ru) |
| RU (1) | RU2249097C2 (ru) |
| WO (1) | WO2000057022A1 (ru) |
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